CN104878836A - Prefabricated house and construction method thereof - Google Patents
Prefabricated house and construction method thereof Download PDFInfo
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- CN104878836A CN104878836A CN201510285667.5A CN201510285667A CN104878836A CN 104878836 A CN104878836 A CN 104878836A CN 201510285667 A CN201510285667 A CN 201510285667A CN 104878836 A CN104878836 A CN 104878836A
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Abstract
The invention provides a prefabricated house and a construction method thereof. The house comprises a house foundation, wherein a foundation connecting piece is embedded in the house foundation; the foundation connecting piece is provided with vertical precast columns; the precast columns are arrayed vertically and horizontally; the precast columns in the same vertical direction are sequentially superposed; horizontal precast beams are arranged among the tops of the adjacent precast columns in the same layer so as to form a house frame; the house frame consists of multiple unit layers; each unit layer comprises multiple unit rooms; <0}{0><}0{>the precast beams in each unit layer are provided with precast prestressed concrete composite floor slabs; anchor bars at two ends of the precast prestressed concrete composite floor plates are fixedly connected with floor slab connecting pieces reserved on the precast beams; vertical precast partition plates are arranged among the adjacent unit rooms; the outer side of the house frame is provided with a precast large out-hung panel; a precast stair plate is arranged between every two upper and lower unit layers. <0}{0><}0{>The construction method is capable of improving the use area of the house, and the prefabricated house is low in construction cost and good in fire resistance.
Description
Technical field
The present invention relates to building field, be specifically related to a kind of prefabricated house and construction method thereof.
Background technology
In high level and Super High house building, traditional building method is site operation, can use reinforced concrete frame or frame structure; Only a few is also had to use steel work in addition.If use reinforced concrete frame or frame structure, the sectional area usually due to beam column is excessive, can occupy actual usage space, is formed " fat beams and columns "; And " fat beams and columns " alleged by this industry can make the usage space irregularity in house, makes troubles to resident family., because concrete solidifying needs the time, and should not construct under low temperature meanwhile, the speed of application of building is restricted.And in traditional building method, a large amount of site operation work, can cause the pollution such as airborne dust, noise, greatly, easily bring security incident, quality control efforts difficulty is large for resource and energy waste., also there is following defect in steel construction: one, the fire line of steel work is poor, runs into fire, easily collapses; Two, within 100 year application life of building, steel also can be corroded, and need to consider Anticorrosion in addition, and three, the cost of steel work is higher.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the deficiency of above-mentioned background technology, and provide a kind of " the thin wall of girder buttress shaft ", cost is low, the prefabricated house that fireproof performance is good and construction method thereof.
The technical scheme that the present invention solves the employing of its technical problem is, a kind of prefabricated house, comprise house foundation, base connection is embedded with in house foundation, described base connection is provided with vertical prefabricated post, and described prefabricated post comprises prefabricated post rectangular steel pipe, is filled with RPC in prefabricated post rectangular steel pipe, except except the place of prefabricated post rectangular steel pipe two ends, outside prefabricated post rectangular steel pipe, be enclosed with foam cement; Prefabricated post arranges in length and breadth, prefabricated post on same vertical direction superposes successively, with the precast beam being provided with level between the prefabricated post top that layer is adjacent, with layer prefabricated post between precast beam be positioned at same plane, form house frame, described house frame is made up of multiple elementary layer, and each elementary layer comprises between multiple unit; Described precast beam comprises precast beam rectangular steel pipe, except except the place of precast beam rectangular steel pipe two ends, RPC is filled with in precast beam rectangular steel pipe, except except the place of precast beam rectangular steel pipe two ends, foam cement is enclosed with outside precast beam rectangular steel pipe, precast beam rectangular steel pipe two ends are provided with grout hole, steam vent, the upper surface of precast beam rectangular steel pipe are provided with floor connector; The precast beam of each elementary layer is provided with precast prestressed concrete laminated floor slab, and the anchor bar at precast prestressed concrete laminated floor slab two ends is firmly connected with floor connector reserved on precast beam; Be provided with vertical prefabricated partition board between adjacent unit, the outside of described house frame is provided with prefabricated large-scale out-hung panel, is provided with precast stair plate between upper and lower two elementary layers.
Further, described prefabricated post is connected by the rectangle sleeve pipe with U-steel bracket with precast beam, and described U-steel bracket is positioned at the side of rectangle sleeve pipe.
Further, the thickness of the steel pipe walls in one of them face of described precast beam rectangular steel pipe is 1 ~ 4 times of the steel pipe walls thickness in other faces, or the cavity of the cross section of described precast beam rectangular steel pipe is trapezoidal.
Further, the side of described prefabricated post is provided with the first junction plate, the side of prefabricated large-scale out-hung panel is provided with the second junction plate, is provided with the pull bar of band on-slip tooth between the first junction plate and the second junction plate, and the pull bar of band on-slip tooth is fixed respectively by bolt and the first junction plate and the second junction plate.
Further, described precast beam side is welded with steel right angle supporting plate, and precast beam is connected with prefabricated large-scale out-hung panel by steel right angle supporting plate.
Further, described precast beam soffit is provided with plastic expansion pipe, plastic expansion pipe is provided with U-shaped card, precast beam is connected with the upper end of prefabricated partition board by U-shaped card, and the lower end of prefabricated partition board is bonded on the overlapping layers of precast prestressed concrete laminated floor slab by in-site pouring mortar.
A construction method for prefabricated house, comprises the following steps:
(1) construction house foundation: at building-site construction house foundation, embedded foundation connector in house foundation, makes the reinforcement welding in base connection and house foundation;
(2) prefabricated post is installed: prefabricated post firmly welded with base connection pre-buried in house foundation; Prefabricated post arranges in length and breadth, and the prefabricated post of lower floor is installed the prefabricated post on upper strata, by the junction firm welding of upper and lower two prefabricated post, prefabricated post in the vertical direction is superposed successively, makes the whole height of prefabricated post reach the setting height in house;
(3) precast beam is installed: the precast beam installing level between the prefabricated post top that same layer is adjacent, with layer prefabricated post between precast beam be positioned at same plane, form house frame, described house frame is made up of multiple elementary layer, and each elementary layer comprises between multiple unit;
(4) node grouting: the grout hole arranged by precast beam rectangular steel pipe two ends, fills toward precast beam two ends the RPC be stirred;
(5) node parcel foam cement: at prefabricated post two ends formwork, pour into foam cement between template and prefabricated post rectangular steel pipe two ends, prefabricated post rectangular steel pipe two ends are all wrapped up by foam cement; At precast beam two ends formwork, between template and precast beam rectangular steel pipe two ends, pour into foam cement, precast beam rectangular steel pipe two ends are all wrapped up by foam cement;
(6) reinforced concrete slab is installed: the precast beam of each elementary layer is installed precast prestressed concrete laminated floor slab; The anchor bar at precast prestressed concrete laminated floor slab two ends is firmly connected with floor connector reserved on precast beam, then builds the concrete of overlapping layers and connecting portion;
(7) prefabricated partition board is installed: between adjacent unit, prefabricated partition board is installed;
(8) prefabricated large-scale out-hung panel is installed: in the outside of house frame, prefabricated large-scale out-hung panel is installed;
(9) precast stair plate is installed: between upper and lower two elementary layers, precast stair plate is installed.
Further, in step (2), the manufacture method of described prefabricated post is as follows:
A, in prefabricated post rectangular steel pipe, fill the RPC be stirred;
B, prefabricated post rectangular steel pipe four sides formwork, except except the place of prefabricated post rectangular steel pipe two ends, between template and prefabricated post rectangular steel pipe, pour into foam cement, make foam cement by prefabricated post rectangular steel pipe except the part except the place of prefabricated post rectangular steel pipe two ends is all wrapped up; The thickness of foam cement is 2 ~ 5cm;
C, maintenance, make the RPC in prefabricated post rectangle steel and outside foam cement reach design strength, form removal, namely form prefabricated post.
Further, in step (3), the manufacture method of described precast beam is as follows:
A, floor connector is set at the upper surface of precast beam rectangular steel pipe, grout hole, steam vent are set at the two ends of precast beam rectangular steel pipe;
B, except except the place of precast beam rectangular steel pipe two ends, in precast beam rectangular steel pipe, fill the RPC be stirred;
C, precast beam rectangular steel pipe four sides formwork, except except the place of precast beam rectangular steel pipe two ends, between template and precast beam rectangular steel pipe, pour into foam cement, make foam cement by precast beam rectangular steel pipe except the part except the place of precast beam rectangular steel pipe two ends is all wrapped up; The thickness of foam cement is 2 ~ 5cm;
D, maintenance, make the RPC in precast beam rectangular steel pipe and outside foam cement reach design strength, form removal, namely form precast beam.
Further, in steps A, weld floor connector at the upper surface of precast beam rectangular steel pipe or punch at the upper surface of precast beam rectangular steel pipe, by floor connector patchhole.
Further, in step B, the RPC of filling in described precast beam rectangular steel pipe is condensed with the floor connector in patchhole and is fixed.
Further, in step (2), also comprise the rectangle sleeve pipe installed with U-steel bracket: with the rectangle sleeve pipe of U-steel bracket on upper and lower two prefabricated post junction covers.
Further, the concrete steps of installing with the rectangle sleeve pipe of U-steel bracket are as follows:
(2-1) do not wrap up the rectangle sleeve pipe with U-steel bracket on the cover of foam cement position in the upper end of the prefabricated post of lower floor, be stuck in the gap between prefabricated post and rectangle sleeve pipe with tagger, with temporary fixed rectangle sleeve pipe;
(2-2), after the prefabricated post of lower floor being welded with the prefabricated post on upper strata, the rectangle sleeve pipe with U-steel bracket is moved to the junction of upper and lower two prefabricated post, then by rectangle sleeve pipe and prefabricated post firm welding.
Further, in step (3), further comprising the steps of: the position of precast beam rectangular steel pipe not being wrapped up foam cement is inserted in the U-steel bracket with the rectangle sleeve pipe of U-steel bracket in two adjacent prefabricated post, by affixed for the position that U-steel bracket and precast beam rectangular steel pipe do not wrap up foam cement.
Compared with prior art, advantage of the present invention is as follows:
(1) RPC is filled with in prefabricated post rectangular steel pipe and precast beam rectangular steel pipe, foam cement is enclosed with outside prefabricated post rectangular steel pipe and precast beam rectangular steel pipe, compared with common steel work, post and beam structure of the present invention significantly can reduce steel using amount, can significantly reduce costs; Compared with reinforced concrete structure, structure of the present invention is lighter and handier, and stress is good, and RPC, because of under the hoop being in rectangular steel pipe retrains, can promote anti-bending strength and the compressive strength of RPC; Rectangular steel pipe significantly promotes its rigidity and axial, side direction anti-pressure ability because being filled by the RPC of high strength, thus, the sectional area of beam column is significantly reduced, so-called " fat beams and columns " problem is solved, really reach the requirement of " the thin wall of girder buttress shaft ", the usable floor area in house can be improved, also make the interior space regular, also can reduce cost of a building simultaneously.
(2) thermal conductivity of RPC is good, there is higher specific heat capacity, and foam cement is good heat-barrier material, so, when a fire, the foam cement of precast beam rectangular steel pipe and prefabricated post rectangular steel pipe outer wrapping effectively can completely cut off heat invasion and attack steel, part has been entered to the heat of steel, inner RPC of filling can be disperseed to a great extent and share again, makes the present invention have fabulous fireproof performance.
(3) foam cement be wrapped in outside precast beam rectangular steel pipe and prefabricated post rectangular steel pipe can prevent precast beam rectangular steel pipe and prefabricated post rectangular steel pipe to be corroded, and can play good antisepsis.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representation of house frame embodiment illustrated in fig. 1.
Fig. 3 is upper strata prefabricated post embodiment illustrated in fig. 1 and the connected mode schematic diagram of lower floor's prefabricated post.
Fig. 4 is the cross sectional representation of prefabricated post embodiment illustrated in fig. 1.
Fig. 5 is the structural representation of precast beam embodiment illustrated in fig. 1.
Fig. 6 is the cross sectional representation of precast beam embodiment illustrated in fig. 1.
Fig. 7 is the structural representation of the rectangle sleeve pipe with U-steel bracket embodiment illustrated in fig. 1.
Fig. 8 is the connected mode schematic diagram of prefabricated post embodiment illustrated in fig. 1 and prefabricated large-scale out-hung panel.
Fig. 9 is the connected mode schematic diagram of precast beam embodiment illustrated in fig. 1 and prefabricated large-scale out-hung panel.
Figure 10 is the connected mode schematic diagram of precast beam embodiment illustrated in fig. 1 and prefabricated partition board.
Figure 11 is the cross sectional representation of one of them steel pipe walls than other thickness of steel pipe of precast beam rectangular steel pipe of the present invention.
Figure 12 is the cavity of the cross section of precast beam rectangular steel pipe of the present invention is trapezoidal schematic diagram.
In figure: 1-U-steel bracket, 2-rectangle sleeve pipe, 3-prefabricated post, 4-precast beam rectangular steel pipe, 5-precast beam, 6-precast beam bolt hole, 7-RPC, 8-foam cement, 9-prefabricated large-scale out-hung panel, 10-precast prestressed concrete laminated floor slab, 11-anchor bar, 12-floor connector, 13-steel right angle supporting plate, 14-cast-in-situ concrete, 15-in-site pouring mortar, 16-foamed plastics insulation rod, 17-polyurathamc glue, 18-elastic sealant, 19-grout hole, 20-steam vent, the pull bar of 21-band on-slip tooth, 22-the first junction plate, 23-the second junction plate, 24-bolt, 25-perforation reinforcing bar, 26-plastic expansion pipe, 27-U-shaped card, 28-prefabricated partition board, 29-steel corbel bolt hole, 30-prefabricated post rectangular steel pipe.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
With reference to Fig. 1, Fig. 2, the present embodiment comprises house foundation, is embedded with base connection in house foundation, and base connection is provided with vertical prefabricated post; With reference to Fig. 3, Fig. 4, prefabricated post 3 comprises prefabricated post rectangular steel pipe 30, is filled with RPC 7 in prefabricated post rectangular steel pipe 30, except except the place of prefabricated post rectangular steel pipe 30 two ends, is enclosed with foam cement 8 outside prefabricated post rectangular steel pipe 30; Prefabricated post 3 arranges in length and breadth, prefabricated post 3 on same vertical direction superposes successively, with the precast beam 5 being provided with level between prefabricated post 3 top that layer is adjacent, with layer prefabricated post 3 between precast beam 5 be positioned at same plane, form house frame, house frame is made up of multiple elementary layer, and each elementary layer comprises between multiple unit.
With reference to Fig. 5, Fig. 6, precast beam 5 comprises precast beam rectangular steel pipe 4, except except the place of precast beam rectangular steel pipe 4 two ends, RPC 7 is filled with in precast beam rectangular steel pipe 4, except except the place of precast beam rectangular steel pipe 4 two ends, be enclosed with foam cement 8 outside precast beam rectangular steel pipe 4, precast beam rectangular steel pipe 4 two ends are provided with precast beam bolt hole 6, grout hole 19, steam vent 20, the upper surface of precast beam rectangular steel pipe 4 are provided with floor connector 12; The precast beam 5 of each elementary layer is provided with precast prestressed concrete laminated floor slab 10, the anchor bar 11 at precast prestressed concrete laminated floor slab 10 two ends is firmly connected with floor connector 12 reserved on precast beam 5, overlapping layers and the precast prestressed concrete laminated floor slab 10 of precast prestressed concrete laminated floor slab 10 are cast with cast-in-situ concrete 14 with the junction of precast beam 5, and adjacent precast prestressed concrete laminated floor slab 10 is connected by perforation reinforcing bar 25; Be provided with vertical prefabricated partition board 28 between adjacent unit, the outside of house frame is provided with prefabricated large-scale out-hung panel 9, is provided with precast stair plate between upper and lower two elementary layers.
Prefabricated post 3 is connected by the rectangle sleeve pipe 2 with U-steel bracket 1 with precast beam 5, and with reference to Fig. 7, U-steel bracket 1 is positioned at the side of rectangle sleeve pipe 2; U-steel bracket 1 is provided with steel corbel bolt hole 29.
With reference to Fig. 8, the side of prefabricated post 3 is provided with the first junction plate 22, the side of prefabricated large-scale out-hung panel 9 is provided with the second junction plate 23, be provided with the pull bar 21 of band on-slip tooth between first junction plate 22 and the second junction plate 23, the pull bar 21 of band on-slip tooth respectively by bolt 24 and the first junction plate 22 and the second junction plate 23 fixing.
With reference to Fig. 9, precast beam 5 side is welded with steel right angle supporting plate 13, and precast beam 5 is connected with prefabricated large-scale out-hung panel 9 by steel right angle supporting plate 13.
With reference to Fig. 9, precast beam 5 soffit is provided with plastic expansion pipe 26, plastic expansion pipe 26 is provided with U-shaped card 27, precast beam 5 is connected by the upper end of U-shaped card 27 with prefabricated partition board 28, and the lower end of prefabricated partition board 28 is bonded on the overlapping layers of precast prestressed concrete laminated floor slab 10 by in-site pouring mortar 15.
With reference to Figure 10, the gap between the prefabricated large-scale out-hung panel 9 of levels is filled with polyurathamc glue 17, foamed plastics insulation rod 16 and elastic sealant 18.
In actual applications, the steel pipe walls thickness on each face of precast beam rectangular steel pipe 4 can design according to stressing conditions, and thickness can be designed to inconsistent.With reference to Figure 11, Figure 12, the thickness of the steel pipe walls in one of them face of precast beam rectangular steel pipe 4 is 1 ~ 4 times of the steel pipe walls thickness in other faces, or the cavity of the cross section of precast beam rectangular steel pipe 4 is trapezoidal, the linear change of thickness of two steel pipe walls that namely steel pipe is relative, the inwall of two relative steel pipe walls is inclined-plane.This structure can effective saving steel, cost-saving.
A construction method for prefabricated house, comprises the following steps:
(1) construction house foundation: at building-site construction house foundation, embedded foundation connector in house foundation, makes the reinforcement welding in base connection and house foundation;
(2) prefabricated post 3 is installed: prefabricated post 3 firmly welded with base connection pre-buried in house foundation; Prefabricated post 3 arranges in length and breadth, and the prefabricated post 3 of lower floor is installed the prefabricated post 3 on upper strata, by the junction firm welding of upper and lower two prefabricated post 3, prefabricated post 3 in the vertical direction is superposed successively, makes the whole height of prefabricated post 3 reach the setting height in house;
(3) precast beam 5 is installed: the precast beam 5 installing level between prefabricated post 3 top that same layer is adjacent, with layer prefabricated post 3 between precast beam 5 be positioned at same plane, form house frame, described house frame is made up of multiple elementary layer, and each elementary layer comprises between multiple unit;
(4) node grouting: the grout hole 19 arranged by precast beam rectangular steel pipe 4 two ends, fills toward precast beam 5 two ends the RPC 7 be stirred;
(5) node parcel foam cement 8: at prefabricated post 3 two ends formwork, pour into foam cement 8 between template and prefabricated post rectangular steel pipe 30 two ends, prefabricated post rectangular steel pipe 30 two ends are all wrapped up by foam cement 8; At precast beam 5 two ends formwork, between template and precast beam rectangular steel pipe 4 two ends, pour into foam cement 8, precast beam rectangular steel pipe 4 two ends are all wrapped up by foam cement 8;
(6) reinforced concrete slab 10 is installed: the precast beam 5 of each elementary layer installs precast prestressed concrete laminated floor slab 10, the anchor bar 11 at precast prestressed concrete laminated floor slab 10 two ends is firmly connected with floor connector 12 reserved on precast beam 5, build the concrete of overlapping layers and connecting portion again, adjacent precast prestressed concrete laminated floor slab 10 is connected by perforation reinforcing bar 25;
(7) prefabricated partition board 28 is installed: prefabricated partition board 28 is installed between adjacent unit;
(8) prefabricated large-scale out-hung panel 9 is installed: in the outside of house frame, prefabricated large-scale out-hung panel 9 is installed;
(9) precast stair plate is installed: between upper and lower two elementary layers, precast stair plate is installed.
The construction method of described prefabricated house, further comprising the steps of:
(10) construction roofing;
(11) pipeline is installed;
(12) house internal and external ornament.
In step (2), the manufacture method of prefabricated post 3 is as follows:
A, the RPC 7 that filling has been stirred in prefabricated post rectangular steel pipe 30;
B, prefabricated post rectangular steel pipe 30 four sides formwork, except except the place of prefabricated post rectangular steel pipe 30 two ends, foam cement 8 is poured between template and prefabricated post rectangular steel pipe 30, prefabricated post rectangular steel pipe 30 is all wrapped up (namely close prefabricated post rectangular steel pipe 30 two ends place does not wrap) except the part except the place of prefabricated post rectangular steel pipe 30 two ends by foam cement 8, and the position of not wrapping up foam cement 8 is convenient to follow-uply to be connected with U-steel bracket 1; The thickness of foam cement 8 is 2 ~ 5cm;
C, maintenance, make the RPC 7 in prefabricated post rectangle steel and outside foam cement 8 reach design strength, form removal, namely form prefabricated post 3.
In step (3), the manufacture method of precast beam 5 is as follows:
A, floor connector 12 is set at the upper surface of precast beam rectangular steel pipe 4, precast beam bolt hole 6, grout hole 19, steam vent 20 are set at the two ends of precast beam rectangular steel pipe 4, grout hole 19 is in the milk for the two ends toward precast beam rectangular steel pipe 4, is vented when steam vent 20 is for being in the milk;
B, except except the place of precast beam rectangular steel pipe 4 two ends, namely the RPC 7(that filling has been stirred in precast beam rectangular steel pipe 4 does not fill out near precast beam rectangular steel pipe 4 two ends place); The position of not filling RPC 7 is convenient to follow-uply to be connected with U-steel bracket 1;
C, precast beam rectangular steel pipe 4 four sides formwork, except except the place of precast beam rectangular steel pipe 4 two ends, foam cement 8 is poured between template and precast beam rectangular steel pipe 4, precast beam rectangular steel pipe 4 is all wrapped up (namely close precast beam rectangular steel pipe 4 two ends place does not wrap) except the part except the place of precast beam rectangular steel pipe 4 two ends by foam cement 8, and the position of not wrapping up foam cement 8 is convenient to follow-uply to be connected with U-steel bracket 1; The thickness of foam cement 8 is 2 ~ 5cm;
D, maintenance, make the RPC 7 in precast beam rectangular steel pipe 4 and outside foam cement 8 reach design strength, form removal, namely form precast beam 5.
In steps A, weld floor connector 12 at the upper surface of precast beam rectangular steel pipe 4 or punch at the upper surface of precast beam rectangular steel pipe 4, by floor connector 12 patchhole.
In step B, the RPC 7 of filling in precast beam rectangular steel pipe 4 and the floor connector 12 in patchhole condense fixing.
In step (2), also comprise the rectangle sleeve pipe 2 installed with U-steel bracket 1: with the rectangle sleeve pipe 2 of U-steel bracket 1 on upper and lower two prefabricated post 3 junction covers, concrete steps are as follows:
(2-1) do not wrap up the rectangle sleeve pipe 2 with U-steel bracket 1 on the cover of foam cement 8 position in the upper end of the prefabricated post 3 of lower floor, be stuck in the gap between prefabricated post 3 and rectangle sleeve pipe 2 with tagger, with temporary fixed rectangle sleeve pipe 2;
(2-2), after the prefabricated post 3 of lower floor being welded with the prefabricated post 3 on upper strata, the rectangle sleeve pipe 2 with U-steel bracket 1 is moved to the junction of upper and lower two prefabricated post 3, then by rectangle sleeve pipe 2 and prefabricated post 3 firm welding.
In step (3), further comprising the steps of: the position of precast beam rectangular steel pipe 4 not being wrapped up foam cement 8 is inserted in the U-steel bracket 1 with the rectangle sleeve pipe 2 of U-steel bracket 1 in two adjacent prefabricated post 3, by affixed for the position that U-steel bracket 1 and precast beam rectangular steel pipe 4 do not wrap up foam cement 8, concrete affixed mode is: connect precast beam bolt hole 6 and steel corbel bolt hole 29 successively with bolt, makes U-steel bracket 1 and precast beam 5 end affixed.
In the construction method of prefabricated house of the present invention, most work is prefabricated in factory to be completed, and the waste of material significantly reduces, and raw-material actual amount also significantly reduces because the sectional area of component is less, really realizes resources conservation and utilizes.Component is in plant produced, and its reliable in quality, precision significantly promotes, and production efficiency significantly improves, and the workload of building-site significantly reduces, and makes safe, civilized, health, the quality of site operation be able to remarkable change, and construction cost less expensive.
The present invention adopts the RPC 7 of interior raising intensity, the prefabricated post 3 of outsourcing foam cement 8 and precast beam 5.Due to high strength and the toughness (its intensity is usually at 200MPa ~ 800MPa) of RPC 7, compared with common steel work, beam column of the present invention significantly can reduce steel using amount, can significantly reduce costs, compared with reinforced concrete structure, structure of the present invention is lighter and handier, stress is good, RPC 7 because of be in rectangular steel pipe hoop constraint under, and improve its anti-bending strength and compressive strength, rectangular steel pipe also significantly promotes its rigidity and axis because being filled by the RPC 7 of high strength, side direction anti-pressure ability, thus, the sectional area of beam column is significantly reduced, so-called " fat beams and columns " problem is solved, really reach the requirement of " the thin wall of girder buttress shaft ", the usable floor area in house can be improved, also make the interior space regular, also cost of a building can be reduced simultaneously.
In addition, the thermal conductivity of RPC 7 is good, there is higher specific heat capacity, and foam cement 8 is good heat-barrier materials, so, when a fire, rectangular steel pipe outsourcing foam cement 8 effectively can completely cut off heat invasion and attack steel, part has been entered to the heat of steel, inner RPC 7 of filling can be disperseed to a great extent and share again, makes the present invention have fabulous fireproof performance.
Moreover, the foam cement be wrapped in outside precast beam rectangular steel pipe 4 and prefabricated post rectangular steel pipe 30 can prevent precast beam rectangular steel pipe 4 and prefabricated post rectangular steel pipe 30 to be corroded, can play good antisepsis, therefore the foam cement 8 of outsourcing makes the Anticorrosion of steel also be solved.
Calculating shows, owing to reducing the cost saved by material amount in the present invention, not only can offset the more expensive cost increase brought of folk prescription price due to RPC 7, and also has obvious surplus.Moreover RPC 7 has high-durability, the life-span of building is significantly extended.Therefore, the present invention has good Technical Economy.
Those skilled in the art can carry out various modifications and variations to the embodiment of the present invention, if these amendments and modification are within the scope of the claims in the present invention and equivalent technologies thereof, then these revise and modification also within protection scope of the present invention.
The prior art that the content do not described in detail in manual is known to the skilled person.
Claims (11)
1. a prefabricated house, comprise house foundation, base connection is embedded with in house foundation, it is characterized in that: described base connection is provided with vertical prefabricated post (3), described prefabricated post (3) comprises prefabricated post rectangular steel pipe (30), be filled with RPC (7) in prefabricated post rectangular steel pipe (30), except except prefabricated post rectangular steel pipe (30) two ends place, prefabricated post rectangular steel pipe (30) outside is enclosed with foam cement (8); Prefabricated post (3) arranges in length and breadth, prefabricated post (3) on same vertical direction superposes successively, with the precast beam (5) being provided with level between prefabricated post (3) top that layer is adjacent, with layer prefabricated post (3) between precast beam (5) be positioned at same plane, form house frame, described house frame is made up of multiple elementary layer, and each elementary layer comprises between multiple unit; Described precast beam (5) comprises precast beam rectangular steel pipe (4), except except precast beam rectangular steel pipe (4) two ends place, RPC (7) is filled with in precast beam rectangular steel pipe (4), except except precast beam rectangular steel pipe (4) two ends place, precast beam rectangular steel pipe (4) outside is enclosed with foam cement (8), precast beam rectangular steel pipe (4) two ends are provided with grout hole (19), steam vent (20), the upper surface of precast beam rectangular steel pipe (4) are provided with floor connector (12); The precast beam (5) of each elementary layer is provided with precast prestressed concrete laminated floor slab (10), and the anchor bar (11) at precast prestressed concrete laminated floor slab (10) two ends is firmly connected with the upper reserved floor connector (12) of precast beam (5); Be provided with vertical prefabricated partition board (28) between adjacent unit, the outside of described house frame is provided with prefabricated large-scale out-hung panel (9), is provided with precast stair plate between upper and lower two elementary layers.
2. prefabricated house as claimed in claim 1, it is characterized in that: described prefabricated post (3) is connected by the rectangle sleeve pipe (2) with U-steel bracket (1) with precast beam (5), and described U-steel bracket (1) is positioned at the side of rectangle sleeve pipe (2).
3. prefabricated house as claimed in claim 1 or 2, it is characterized in that: the thickness of the steel pipe walls in one of them face of described precast beam rectangular steel pipe (4) is 1 ~ 4 times of the steel pipe walls thickness in other faces, or the cavity of the cross section of described precast beam rectangular steel pipe (4) is trapezoidal.
4. a construction method for the prefabricated house as described in claim 1 or 2 or 3, is characterized in that: comprise the following steps:
(1) construction house foundation: at building-site construction house foundation, embedded foundation connector in house foundation, makes the reinforcement welding in base connection and house foundation;
(2) prefabricated post (3) is installed: prefabricated post (3) firmly welded with base connection pre-buried in house foundation; Prefabricated post (3) arranges in length and breadth, in the upper prefabricated post (3) of installing upper strata of the prefabricated post (3) of lower floor, by the junction firm welding of upper and lower two prefabricated post (3), prefabricated post (3) in the vertical direction is superposed successively, make the whole height of prefabricated post (3) reach the setting height in house;
(3) precast beam (5) is installed: the precast beam (5) installing level between prefabricated post (3) top that same layer is adjacent, with layer prefabricated post (3) between precast beam (5) be positioned at same plane, form house frame, described house frame is made up of multiple elementary layer, and each elementary layer comprises between multiple unit;
(4) node grouting: the grout hole (19) arranged by precast beam rectangular steel pipe (4) two ends, fills toward precast beam (5) two ends the RPC (7) be stirred;
(5) node parcel foam cement (8): at prefabricated post (3) two ends formwork, pour into foam cement (8) between template and prefabricated post rectangular steel pipe (30) two ends, prefabricated post rectangular steel pipe (30) two ends are all wrapped up by foam cement (8); At precast beam (5) two ends formwork, between template and precast beam rectangular steel pipe (4) two ends, pour into foam cement (8), precast beam rectangular steel pipe (4) two ends are all wrapped up by foam cement (8);
(6) reinforced concrete slab (10) is installed: the precast beam (5) of each elementary layer is upper installs precast prestressed concrete laminated floor slab (10); Upper to the anchor bar (11) at precast prestressed concrete laminated floor slab (10) two ends and precast beam (5) reserved floor connector (12) is firmly connected, then builds the concrete of overlapping layers and connecting portion;
(7) prefabricated partition board (28) is installed: prefabricated partition board (28) is installed between adjacent unit;
(8) prefabricated large-scale out-hung panel (9) is installed: in the outside of house frame, prefabricated large-scale out-hung panel (9) is installed;
(9) precast stair plate is installed: between upper and lower two elementary layers, precast stair plate is installed.
5. the construction method of prefabricated house as claimed in claim 4, it is characterized in that: in step (2), the manufacture method of described prefabricated post (3) is as follows:
A, the RPC (7) that filling has been stirred in prefabricated post rectangular steel pipe (30);
B, prefabricated post rectangular steel pipe (30) four sides formwork, except except prefabricated post rectangular steel pipe (30) two ends place, between template and prefabricated post rectangular steel pipe (30), pour into foam cement (8), make foam cement (8) by prefabricated post rectangular steel pipe (30) except the part except prefabricated post rectangular steel pipe (30) two ends place is all wrapped up; The thickness of foam cement (8) is 2 ~ 5cm;
C, maintenance, make the RPC in prefabricated post rectangle steel (7) and outside foam cement (8) reach design strength, form removal, namely form prefabricated post (3).
6. the construction method of prefabricated house as claimed in claim 5, it is characterized in that: in step (3), the manufacture method of described precast beam (5) is as follows:
A, floor connector (12) is set at the upper surface of precast beam rectangular steel pipe (4), grout hole (19), steam vent (20) are set at the two ends of precast beam rectangular steel pipe (4);
B, except except precast beam rectangular steel pipe (4) the two ends place, the RPC (7) that filling has been stirred in precast beam rectangular steel pipe (4);
C, precast beam rectangular steel pipe (4) four sides formwork, except except precast beam rectangular steel pipe (4) two ends place, between template and precast beam rectangular steel pipe (4), pour into foam cement (8), make foam cement (8) by precast beam rectangular steel pipe (4) except the part except precast beam rectangular steel pipe (4) two ends place is all wrapped up; The thickness of foam cement (8) is 2 ~ 5cm;
D, maintenance, make the RPC (7) in precast beam rectangular steel pipe (4) and outside foam cement (8) reach design strength, form removal, namely form precast beam (5).
7. the construction method of prefabricated house as claimed in claim 6, it is characterized in that: in steps A, weld floor connector (12) at the upper surface of precast beam rectangular steel pipe (4) or punch, by floor connector (12) patchhole at the upper surface of precast beam rectangular steel pipe (4).
8. the construction method of prefabricated house as claimed in claim 7, is characterized in that: in step B, and the RPC (7) of filling in described precast beam rectangular steel pipe (4) and the floor connector (12) in patchhole condense fixing.
9. the construction method of the prefabricated house according to any one of claim 4 to 8, it is characterized in that: in step (2), also comprise the rectangle sleeve pipe (2) installed with U-steel bracket (1): put the rectangle sleeve pipe (2) with U-steel bracket (1) in upper and lower two prefabricated post (3) junction.
10. the construction method of prefabricated house as claimed in claim 9, is characterized in that: the concrete steps of installing with the rectangle sleeve pipe (2) of U-steel bracket (1) are as follows:
(2-1) do not wrap up foam cement (8) position in the upper end of the prefabricated post (3) of lower floor and put rectangle sleeve pipe (2) with U-steel bracket (1), be stuck in the gap between prefabricated post (3) and rectangle sleeve pipe (2) with tagger, with temporary fixed rectangle sleeve pipe (2);
(2-2) after the prefabricated post (3) of lower floor being welded with the prefabricated post (3) on upper strata, rectangle sleeve pipe (2) with U-steel bracket (1) is moved to the junction of upper and lower two prefabricated post (3), then by rectangle sleeve pipe (2) and prefabricated post (3) firm welding.
The construction method of 11. prefabricated houses as claimed in claim 10, it is characterized in that: in step (3), further comprising the steps of: the position of precast beam rectangular steel pipe (4) not being wrapped up foam cement (8) is inserted in the U-steel bracket (1) with the rectangle sleeve pipe (2) of U-steel bracket (1) on two adjacent prefabricated post (3), by affixed for the position that U-steel bracket (1) and precast beam rectangular steel pipe (4) do not wrap up foam cement (8).
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Effective date of registration: 20180831 Address after: 413062 dragon field house group, Malone Ba village, Heng Long new area, Heshan District, Yiyang, Hunan Patentee after: Hunan vision residential Industrial Technology Co., Ltd. Address before: 410133 camphor group, Huang Xing new village, Huang Xing Town, Changsha, Hunan, Changsha County Patentee before: Changsha Yi Jing building materials Science and Technology Ltd. |