CN205063133U - Superimposed sheet superstructure system of prestressing force bottom plate based on take truss - Google Patents
Superimposed sheet superstructure system of prestressing force bottom plate based on take truss Download PDFInfo
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- CN205063133U CN205063133U CN201520791112.3U CN201520791112U CN205063133U CN 205063133 U CN205063133 U CN 205063133U CN 201520791112 U CN201520791112 U CN 201520791112U CN 205063133 U CN205063133 U CN 205063133U
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Abstract
The utility model provides a superimposed sheet superstructure system of prestressing force bottom plate based on take truss, the wholeness is good, and superimposed sheet rigidity and faying face shear can the reinforce, construction convenience. It includes coincide floor and the support building element who is connected with the coincide floor, and the coincide floor includes prefabricated panel, truss and cast -in -place superposed layer, and prefabricated panel has the lateral structure muscle, and the bottom of truss is pre -buried in prefabricated panel, and the top of truss is higher than the prefabricated panel upper surface to bury in cast -in -place superposed layer, cast -in -place superposed layer locates prefabricated panel's top, is equipped with the negative reinforcement in the cast -in -place superposed layer, the coincide floor is located and supports the building element top, and support building element is load bearing wall, cast in situ concrete roof beam, collar tie beam, cast in situ concrete shear force wall, composite beam, precast shear wall or girder steel.
Description
Technical field
The present invention relates to building structure field, particularly relate to a kind of laminated plate floor construction system and preparation method of the prestress baseboard based on band truss.
Background technology
Industrialization of construction industry has become the inexorable trend of China's building trade development, and change into by prefabrication by cast-in-place architectural mode, field-installed assembled integral architectural mode, has become the mission of modern architecture practitioner.
At present, laminated floor slab mainly contains ordinary flat type prestressed concrete laminated floor slab, prefabricated prestressed concrete overlapped slab with ribbing and plain bars truss superimposed sheet.Ordinary flat type prestressed concrete overlapped slab relies on the matsurface of plate upper surface to be combined with overlapping layers concrete, opposing section shear, and shear resistance is poor; Prefabricated prestressed concrete overlapped slab with ribbing, with concrete rib, rib leaves the cavity for interspersed reinforcing bar, and this rib easily destroys in hoisting transportation process, and is not easy interspersed reinforcing bar; Plain bars truss superimposed sheet is owing to adopting common steel bar stress, and panel stiffness is little, and required plate thickness is large, add dead load, and this plate bearing load scope is less.
Steel bar girder prestressed concrete laminated floor slab has neutralized the advantage of various superimposed sheet, and overcomes present most of template Problems existing.Base plate adopts without vibration self-compaction coagulation, configures prestressed reinforcement in plate, and steel bar girder is implanted on plate top, effectively increases the rigidity of superimposed sheet, facilitates and produces and construction.
Summary of the invention
The object of the invention is to provide a kind of laminated plate floor construction system of prestress baseboard based on band truss and preparation method, good integrity, superimposed sheet rigidity and bonding surface shear resistance strong, easy construction.
To achieve these goals, the present invention adopts following scheme:
A kind of laminated plate floor construction system of the prestress baseboard based on band truss, the support building unit comprising laminated floor slab and be connected with laminated floor slab, laminated floor slab comprises prefabricated panel, truss and cast-in-place overlapping layers, prefabricated panel has transverse structure muscle, the bottom of truss is embedded in prefabricated panel, and the top of truss higher than prefabricated panel upper surface, and is buried in cast-in-place overlapping layers, cast-in-place overlapping layers is located at the top of prefabricated panel, is provided with negative reinforcement in cast-in-place overlapping layers; Laminated floor slab is positioned at and supports above building unit, and support building unit is load bearing wall, cast-in-situ concrete beam, collar tie beam, cast-in-place concrete shear wall, superposed beam, precast shear wall or girder steel.
In the laminated plate floor construction system of the above-mentioned prestress baseboard based on band truss preferably, support building unit is load bearing wall, is provided with collar tie beam above load bearing wall, and prefabricated panel end is superimposed on collar tie beam; Prefabricated panel end with support building unit link there is no a beard muscle time, superimposed length is more than or equal to 80mm; When prefabricated panel end is provided with beard muscle with support building unit link, superimposed length is more than or equal to 40mm.
In the laminated plate floor construction system of the above-mentioned prestress baseboard based on band truss preferably, support building unit is girder steel, and prefabricated panel end is superimposed on girder steel, is provided with shear connector in cast-in-place overlapping layers, and superimposed length is more than or equal to 40mm.
In the laminated plate floor construction system of the above-mentioned prestress baseboard based on band truss preferably, supporting building unit is cast-in-situ concrete beam cast-in-place concrete shear wall, superposed beam, precast shear wall or girder steel, prefabricated panel end is superimposed on and supports on building unit, and superimposed length is more than or equal to 10mm.
In the laminated plate floor construction system of the above-mentioned prestress baseboard based on band truss preferably, when prefabricated panel end does not have a beard muscle, additional bar is provided with above prefabricated panel end in cast-in-place overlapping layers, the additional bar length be pressed on prefabricated panel is more than or equal to the anchorage length of 1.4 times, additional bar stretches into and supports 15 times that building unit length is more than or equal to additional bar diameter, and additional bar inserting end protrudes from support building unit center line.
In the laminated plate floor construction system of the above-mentioned prestress baseboard based on band truss preferably, truss is inverted v-shaped structure, del structure or i shaped steel, is connected as one between each truss by truss bars.
In the laminated plate floor construction system of the above-mentioned prestress baseboard based on band truss preferably, truss comprises three web members, and three web member tops meet at a bit, are connected as one between each truss by truss bars.
Based on a preparation method for the laminated plate floor construction system of the prestress baseboard of band truss, comprise the following steps:
1) make long line platform, table top adopts 2cm steel plate, adds I-shaped bracing members under steel plate, and table top keeps level;
2) adopt pre-tensioning system prestressed reinforcement of tensioning, prestressed reinforcement one end is fixed on pedestal end, and other end equipment carries out stretch-draw;
3) after determining superimposed sheet width, also fixing along prefabricated panel 3 edge supports limit mould;
4) stir self-compact concrete, and pour in die trial, carry out stream curing after having built, curing time is not less than 12h;
5) carry out when component strength at least reaches 75% of design strength putting and open, first long-line pedestal mid portion is got by the centre position often organizing reinforcing bar to bilateral symmetry interlaced putting when to put, cut muscle should not exceed and often organize 15% of reinforcing bar radical at every turn, require to complete for 7 times, reinforcing bar between other plate and plate can be intermeshed by the bilateral symmetry of centre and cut off, put Zhang Kefen to complete for 3 times and namely make floor, remove support edge mould stack after stand-by;
6) prestress baseboard of hanging belt truss is needed according to design, temporary support is built below prestress baseboard, edge joint position between adjacent two prestress baseboard sides arranges additional bar, and additional bar is laid on above base plate, and prestress baseboard is shelved on bearing masonry wall or collar tie beam;
7) build overlapping layers concrete, maintenance also reaches concrete design strength, removes temporary support, based on the laminated plate floor construction System forming of the prestress baseboard of band truss.
Preferably, self-compact concrete, calculates according to components by weight percent the preparation method of the laminated plate floor construction system of the above-mentioned prestress baseboard based on band truss; every cubic meter of concrete comprises cement 513 parts; 175 parts, water, sand 669 parts, 926 parts, stone; 128 parts, flyash; high-efficiency water-reducing agent of poly-carboxylic acid 1.4 parts, glass bead 2.5 parts, EEA plastic expansion agent 0.05 part; 0.02 part, gluconic acid sodium salt powder, 0.02 part, gelatin.
Preferably, described cement is Portland cement to the preparation method of the laminated plate floor construction system of the above-mentioned prestress baseboard based on band truss; What stone adopted is the particle diameter continuous grading rubble of 5 ~ 10mm, and mud content is less than 0.5%; Sand comprises coarse sand and fine sand, and coarse sand and fine sand volume ratio are 4.5:5.5, and wherein coarse sand particle diameter is not more than 2.5mm, and fine sand particle diameter is not more than 0.7mm, fineness modulus 2.3 ~ 2.9, and sand coarse aggregate ratio controls at 0.47-0.53, and mud content is no more than 2.0%, density 2.61g/m
3.
Beneficial effect of the present invention:
1. superimposed sheet can play the effect of template in the construction stage, has saved template and required cost of labor;
2. the employing of superimposed sheet decreases shuttering supporting, solves and need wait for that concrete strength reaches the problem of stripping again after designing requirement, increased substantially speed of application;
3. the employing of superimposed sheet reduces the quantity of cast-in-situ concrete, reduces in work progress the noise pollution produced in the pollution of environment and work progress again;
4. superimposed sheet bottom surface is smooth flat, directly can do finishing process, simplify fitment process;
5. superimposed sheet better links together by broken line reinforcing bar, better ensure that the globality of floor system;
6. in overlapping layers, the employing of light material reduces superstructure deadweight, reduces the quantity of reinforcement of structure;
7. the employing of overlapping layers ensure that the globality of structure.
Accompanying drawing explanation
Fig. 1 is the laminated plate floor construction system schematic perspective view of the prestress baseboard based on band truss.
Fig. 2 is laminated plate floor construction system schematic perspective view.
When Fig. 3 is load bearing wall for supporting building unit, 1. Fig. 2 interior joint locates structural representation.
When Fig. 4 is load bearing wall for supporting building unit, 2. Fig. 2 interior joint locates structural representation.
When Fig. 5 is load bearing wall for supporting building unit, 3. Fig. 2 interior joint locates structural representation.
When Fig. 6 is load bearing wall for supporting building unit, 4. Fig. 2 interior joint locates structural representation.
When Fig. 7 is load bearing wall for supporting building unit, 5. Fig. 2 interior joint locates structural representation.
When Fig. 8 is girder steel for supporting building unit, 1. Fig. 2 interior joint locates structural representation.
When Fig. 9 is girder steel for supporting building unit, 2. Fig. 2 interior joint locates structural representation.
When Figure 10 is girder steel for supporting building unit, 3. Fig. 2 interior joint locates structural representation.
When Figure 11 is girder steel for supporting building unit, 4. Fig. 2 interior joint locates structural representation.
When Figure 12 is girder steel for supporting building unit, 5. Fig. 2 interior joint locates structural representation.
When Figure 13 is cast-in-situ concrete beam, shear wall, superposed beam or precast shear wall for supporting building unit, 1. Fig. 2 interior joint locates structural representation.
When Figure 14 is cast-in-situ concrete beam, shear wall, superposed beam or precast shear wall for supporting building unit, 2. Fig. 2 interior joint locates structural representation.
When Figure 15 is cast-in-situ concrete beam, shear wall, superposed beam or precast shear wall for supporting building unit, 3. Fig. 2 interior joint locates structural representation.
When Figure 16 is cast-in-situ concrete beam, shear wall, superposed beam or precast shear wall for supporting building unit, 4. Fig. 2 interior joint locates structural representation.
When Figure 17 is cast-in-situ concrete beam, shear wall, superposed beam or precast shear wall for supporting building unit, 5. Fig. 2 interior joint locates structural representation.
When Figure 18 is load bearing wall for supporting building unit, 1. Fig. 2 interior joint locates structural representation, and wherein prefabricated panel two ends do not establish beard muscle or one end to establish beard muscle.
When Figure 19 is load bearing wall for supporting building unit, 2. Fig. 2 interior joint locates structural representation, and wherein prefabricated panel two ends do not establish beard muscle or one end to establish beard muscle.
When Figure 20 is cast-in-place concrete shear wall for supporting building unit, 1. Fig. 2 interior joint locates structural representation.
When Figure 21 is cast-in-situ concrete beam for supporting building unit, 1. Fig. 2 interior joint locates structural representation.
1. Figure 22 for locating structural representation for Fig. 2 interior joint when support building unit is girder steel.
Figure 23 is the assembled rear side viewing cross-sectional schematic of superimposed sheet of embodiment 1.
Figure 24 is the superimposed sheet schematic cross-section of embodiment 2.
Figure 25 is the superimposed sheet schematic cross-section of embodiment 3.
Figure 26 is the superimposed sheet schematic cross-section of embodiment 4.
In figure 1, truss, 2, transverse structure muscle, 3, prefabricated panel, 4, broken line reinforcing bar, 5, collar tie beam, 6, negative reinforcement, 7, cast-in-place overlapping layers, 9 support building units, and 10, longitudinal prestressing muscle, 11, shear connector, 12, additional bar, 1-1, truss bars, 7-1, distribution reinforcement.
Detailed description of the invention
Better understand the present invention for the ease of those skilled in the art, be described in further details below in conjunction with the drawings and specific embodiments to the present invention, following is only exemplary do not limit protection scope of the present invention.
With reference to accompanying drawing 1, Fig. 2 and Figure 23, a kind of laminated plate floor construction system of the prestress baseboard based on band truss, the support building unit comprising superimposed sheet and be connected with laminated floor slab, laminated floor slab comprises prefabricated panel 3, truss 1 and cast-in-place overlapping layers 7, there is in prefabricated panel 3 transverse structure muscle 2, prefabricated panel 3 edge joint position is configured with additional bar, and additional bar can adopt broken line reinforcing bar 4, also can adopt gauze wire cloth; The bottom of truss 1 is embedded in prefabricated panel 3, and the top of truss 1 is higher than being buried in cast-in-place overlapping layers 7 after prefabricated 3 upper surfaces; Cast-in-place overlapping layers 7 is located at the top of prefabricated panel 3, negative reinforcement 6 and distribution reinforcement 7-1 is provided with in cast-in-place overlapping layers 7, laminated floor slab is positioned at and supports above building unit 9, and supporting building unit 9 is load bearing wall, cast-in-situ concrete beam, collar tie beam, cast-in-place concrete shear wall, superposed beam, precast shear wall or girder steel.
With reference to accompanying drawing 3 to Fig. 7, supporting building unit 9 is load bearing wall, and be provided with collar tie beam 5 above load bearing wall, prefabricated panel 3 end is superimposed on collar tie beam 5; Prefabricated panel 3 end with support building unit 9 link there is no a beard muscle time, superimposed length is more than or equal to 80mm; When prefabricated panel 3 end is provided with beard muscle with support building unit 9 link, superimposed length is more than or equal to 40mm.
With reference to figure 8 to Figure 12, supporting building unit 9 is girder steel, and prefabricated panel 3 end is superimposed on girder steel, is provided with shear connector 11 in cast-in-place overlapping layers, and superimposed length is more than or equal to 40mm.
With reference to figure 9 to Figure 17, supporting building unit 9 is cast-in-situ concrete beam cast-in-place concrete shear wall, superposed beam, precast shear wall or girder steel, and prefabricated panel 3 end is superimposed on and supports on building unit 9, and superimposed length is more than or equal to 10mm.
Referring to figs. 18 to Figure 22, when prefabricated panel 3 end does not have a beard muscle, additional bar 12 is provided with above prefabricated panel 3 end in cast-in-place overlapping layers, additional bar 12 length be pressed on prefabricated panel 3 is more than or equal to the anchorage length of 1.4 times, additional bar 12 stretches into and supports 15 times that building unit 9 length is more than or equal to additional bar 12 diameter, and additional bar 12 inserting end protrudes from support building unit 9 center line.
Embodiment 1
With reference to accompanying drawing 23, truss 1 is inverted v-shaped structure, and material is reinforcing bar, is connected as one between each truss 1 by truss bars 1-1.
Embodiment 2
With reference to accompanying drawing 24, truss 1 comprises three web members, and three web member tops meet at a bit, is connected as one between each truss 1 by truss bars.
Embodiment 3
With reference to accompanying drawing 25, truss 1 is del structure, and material is reinforcing bar, is connected as one between each truss 1 by truss bars.
Embodiment 4
With reference to accompanying drawing 26, truss is i shaped steel, and material is reinforcing bar, is connected as one between each truss 1 by truss bars.
Based on a preparation method for the laminated plate floor construction system of the prestress baseboard of band truss, comprise the following steps:
1) make long line platform, table top adopts 2cm steel plate, adds I-shaped bracing members under steel plate, and table top keeps level;
2) adopt pre-tensioning system prestressed reinforcement of tensioning, prestressed reinforcement one end is fixed on pedestal end, and other end equipment carries out stretch-draw;
3) after determining superimposed sheet width, also fixing along superimposed sheet edge supports limit mould;
4) stir self-compact concrete, and pour in die trial, carry out stream curing after having built, curing time is not less than 12h;
5) carry out when component strength at least reaches 75% of design strength putting and open, first long-line pedestal mid portion is got by the centre position often organizing reinforcing bar to bilateral symmetry interlaced putting when to put, cut muscle should not exceed and often organize 15% of reinforcing bar radical at every turn, require to complete for 7 times, reinforcing bar between other plate and plate can be intermeshed by the bilateral symmetry of centre and cut off, put Zhang Kefen to complete for 3 times and namely make floor, remove support edge mould stack after stand-by;
6) prestress baseboard of hanging belt truss is needed according to design, temporary support is built below prestress baseboard, edge joint position between adjacent two prestress baseboard sides should arrange additional bar, and additional bar is laid on above base plate, and prestress baseboard is shelved on bearing masonry wall or collar tie beam 5;
7) build overlapping layers concrete, maintenance also reaches concrete design strength, removes temporary support, based on the laminated plate floor construction System forming of the prestress baseboard of band truss.
In the present embodiment, self-compact concrete, calculates according to components by weight percent; every cubic meter of concrete comprises cement 513 parts; 175 parts, water, sand 669 parts, 926 parts, stone; 128 parts, flyash; high-efficiency water-reducing agent of poly-carboxylic acid 1.4 parts, glass bead 2.5 parts, EEA plastic expansion agent 0.05 part; 0.02 part, gluconic acid sodium salt powder, 0.02 part, gelatin.
In the present embodiment, cement is Portland cement; What stone adopted is the particle diameter continuous grading rubble of 5 ~ 10mm, and mud content is less than 0.5%; Sand comprises coarse sand and fine sand, and coarse sand and fine sand volume ratio are 4.5:5.5, and wherein coarse sand particle diameter is not more than 2.5mm, and fine sand particle diameter is not more than 0.7mm, fineness modulus 2.3 ~ 2.9, and sand coarse aggregate ratio controls 0.47 ~ 0.53, and mud content is no more than 2.0%, density 2.61g/m
3.
Above only describes general principle of the present invention and preferred embodiment, those skilled in the art can make many changes and improvements according to foregoing description, and these changes and improvements should belong to protection scope of the present invention.
Claims (7)
1. the laminated plate floor construction system based on the prestress baseboard of band truss, the support building unit comprising laminated floor slab and be connected with laminated floor slab, it is characterized in that: laminated floor slab comprises prefabricated panel, truss and cast-in-place overlapping layers, prefabricated panel has transverse structure muscle, the bottom of truss is embedded in prefabricated panel, the top of truss is higher than prefabricated panel upper surface, and be buried in cast-in-place overlapping layers, cast-in-place overlapping layers is located at the top of superimposed sheet prefabricated panel, is provided with negative reinforcement in cast-in-place overlapping layers; Laminated floor slab is positioned at and supports above building unit, and support building unit is load bearing wall, cast-in-situ concrete beam, collar tie beam, cast-in-place concrete shear wall, superposed beam, precast shear wall or girder steel.
2., according to claim 1 based on the laminated plate floor construction system of the prestress baseboard of band truss, it is characterized in that: support building unit is load bearing wall, is provided with collar tie beam above load bearing wall, and prefabricated panel end is superimposed on collar tie beam; Prefabricated panel end with support building unit link there is no a beard muscle time, superimposed length is more than or equal to 80mm; When prefabricated panel end is provided with beard muscle with support building unit link, superimposed length is more than or equal to 40mm.
3. according to claim 1 based on the laminated plate floor construction system of the prestress baseboard of band truss, it is characterized in that: support building unit is girder steel, prefabricated panel end is superimposed on girder steel, is provided with shear connector in cast-in-place overlapping layers, and superimposed length is more than or equal to 40mm.
4. according to claim 1 based on the laminated plate floor construction system of the prestress baseboard of band truss, it is characterized in that: supporting building unit is cast-in-situ concrete beam cast-in-place concrete shear wall, superposed beam, precast shear wall or girder steel, prefabricated panel end is superimposed on and supports on building unit, and superimposed length is more than or equal to 10mm.
5. according to claim 1 based on the laminated plate floor construction system of the prestress baseboard of band truss, it is characterized in that: when prefabricated panel end does not have a beard muscle, additional bar is provided with above prefabricated panel end in cast-in-place overlapping layers, the additional bar length be pressed on prefabricated panel is more than or equal to the anchorage length of 1.4 times, additional bar stretches into and supports 15 times that building unit length is more than or equal to additional bar diameter, and additional bar inserting end protrudes from support building unit center line.
6. according to any one of claim 1 to 5 based on the laminated plate floor construction system of prestress baseboard of band truss, it is characterized in that: truss is inverted v-shaped structure, del structure or i shaped steel, is connected as one between each truss by truss bars.
7. according to any one of claim 1 to 5 based on the laminated plate floor construction system of prestress baseboard of band truss, it is characterized in that: truss comprises three web members, and three web member tops meet at a bit, are connected as one between each truss by truss bars.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520791112.3U CN205063133U (en) | 2015-10-14 | 2015-10-14 | Superimposed sheet superstructure system of prestressing force bottom plate based on take truss |
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| CN201520791112.3U CN205063133U (en) | 2015-10-14 | 2015-10-14 | Superimposed sheet superstructure system of prestressing force bottom plate based on take truss |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297982A (en) * | 2015-10-14 | 2016-02-03 | 山东凝华建筑科技有限公司 | Laminated slab floor system based on pre-stress baseplate with truss and preparation method of same |
| CN107313517A (en) * | 2017-07-24 | 2017-11-03 | 远大住宅工业（上海）有限公司 | Overlap wall and intermediate layer laminated floor slab connecting node |
| CN108222347A (en) * | 2018-03-03 | 2018-06-29 | 北京工业大学 | A kind of big module welding overlapping beam slab of the assembled with plane girder temporary support |
| CN108625486A (en) * | 2018-06-04 | 2018-10-09 | 浙江中益建材科技有限公司 | A kind of across frame structure edge support node structure of steel bar girder plate |
| CN110512783A (en) * | 2019-03-19 | 2019-11-29 | 浙江绿城建筑设计有限公司 | The building cover structure being made of cast-in-place concrete Vierendeel girder and reinforced concrete slab |
-
2015
- 2015-10-14 CN CN201520791112.3U patent/CN205063133U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297982A (en) * | 2015-10-14 | 2016-02-03 | 山东凝华建筑科技有限公司 | Laminated slab floor system based on pre-stress baseplate with truss and preparation method of same |
| CN105297982B (en) * | 2015-10-14 | 2017-07-04 | 山东凝华建筑科技有限公司 | Laminated plate floor construction system and preparation method based on the prestress baseboard with truss |
| CN107313517A (en) * | 2017-07-24 | 2017-11-03 | 远大住宅工业（上海）有限公司 | Overlap wall and intermediate layer laminated floor slab connecting node |
| CN107313517B (en) * | 2017-07-24 | 2023-08-18 | 远大住宅工业（上海）有限公司 | Connecting node for laminated wall and laminated floor slab in middle layer |
| CN108222347A (en) * | 2018-03-03 | 2018-06-29 | 北京工业大学 | A kind of big module welding overlapping beam slab of the assembled with plane girder temporary support |
| CN108625486A (en) * | 2018-06-04 | 2018-10-09 | 浙江中益建材科技有限公司 | A kind of across frame structure edge support node structure of steel bar girder plate |
| CN110512783A (en) * | 2019-03-19 | 2019-11-29 | 浙江绿城建筑设计有限公司 | The building cover structure being made of cast-in-place concrete Vierendeel girder and reinforced concrete slab |
| CN110512783B (en) * | 2019-03-19 | 2020-09-08 | 浙江绿城建筑设计有限公司 | Floor structure composed of cast-in-place concrete frame beam and concrete composite floor slab |
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Granted publication date: 20160302 Termination date: 20161014 |