CN105926774A - End plate connection integral type combination frame beam and combination method thereof - Google Patents
End plate connection integral type combination frame beam and combination method thereof Download PDFInfo
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- CN105926774A CN105926774A CN201610413215.5A CN201610413215A CN105926774A CN 105926774 A CN105926774 A CN 105926774A CN 201610413215 A CN201610413215 A CN 201610413215A CN 105926774 A CN105926774 A CN 105926774A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
- E04B5/29—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated the prefabricated parts of the beams consisting wholly of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2415—Brackets, gussets, joining plates
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2418—Details of bolting
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2448—Connections between open section profiles
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to an end plate connection integral type combination frame beam and a combination method thereof. The end plate connection integral type combination frame beam comprises a horizontally arranged steel beam, the two ends of the steel beam respectively enable a vertical end plate and a vertically arranged steel column to be fixedly connected, the end of the steel beam is welded to the end plate, and the end plate is connected with the steel column through a plurality of bolts vertically arranged at intervals. More than one U-shaped steel bar connecting piece is welded to the upper end of the end plate, a plurality of transverse steel bars are laid above the steel beam, the two ends of every two adjacent steel bars are respectively welded to form a pi-shaped steel bar assembly, the pi-shaped steel bar assemblies are in lap joint with the end plate through the U-shaped steel bar connecting piece respectively, and the pi-shaped steel bar assemblies at the two ends of the steel beam are in butt joint in the middle of the steel beam through steel bar sleeves. A concrete plate is further laid on the steel beam, and the steel bars are embedded in the concrete plate. The end plate connection integral type combination frame beam has the advantages that the end structures of the steel bars are changed, the steel bars come into effective connection with the end plate, a combined effect of steel and concrete can be fully utilized, and materials are saved.
Description
Technical field
The present invention relates to technical field of civil, especially a kind of end plate connection monoblock type Composite frame beam and combinations thereof method.
Background technology
Steel-concrete composite beam is by arranging shear connector (peg, channel-section steel, curved muscle etc.) between girder steel and concrete slab, both starting and Relative sliding at interface of opposing, make an entirety and cooperation, thus give full play to the respective advantage of bi-material, form the version that intensity is high, rigidity is big, ductility is good.But, during being designed group frame according to the design specification such as China's " seismic design provision in building code ", " Technical Specification for Steel Structure of Tall Buildings ", " Code for design of steel structures ", designer is general to be only designed according to combination beam non-framework (i.e. secondary beam)；And for Vierendeel girder (i.e. girder), be then to be designed according to clean steel beam in elastic-plastic phase.This is owing to Vierendeel girder two ends exist hogging moment area, and reinforcing bar cannot ensure the seriality of power transmission (in plate, reinforcing bar cannot be through in the plate that hogging moment area is in the range of post width, and can not be welded on steel column flange plate), therefore it is contemplated that compound action in elasticity designs, but after entering plasticity, the most only consider clean steel beam part, ignore the combined effect of concrete slab.From the point of view of the loading characteristic of Vierendeel girder, Vierendeel girder sagging moment district is due to girder steel and the compound action of floorslab concrete, and bending rigidity and the bending resistance in cross section are the biggest；And in Vierendeel girder hogging moment area, owing to not considering the compound action of floor, its cross section bending resistance and rigidity are significantly less than cross section, positive moment of span central point district.Therefore, when carrying out beam section design, often control action by beam-ends hogging moment, in this case, designer will have to select the girder steel of larger cross-section size to meet the Vierendeel girder anti-bending bearing capacity requirement in hogging moment area.Obviously, the way of increasing section will cause the serious waste of material, and meanwhile, the increase of rolled steel dosage can increase the interlayer quality of structure, so that seismic response increases.Additionally, be designed by clean steel beam, in floor and plate, the contribution of Vierendeel girder rigidity and bearing capacity is left in the basket by reinforcing bar, easily forms the weak column structure system of brutal, the most unfavorable to structural seismic.
In sum, Vierendeel girder being simplified in group frame clean steel beam and is designed being to be determined by the most traditional beam, plate, post connected mode, there is waste of material, uneasy congruence drawback in this method for designing.In order to make Vierendeel girder can give full play to compound action, it is achieved computation model and the concordance of realistic model, the present invention proposes a kind of end plate connection monoblock type Composite frame beam and corresponding beam-column connection thereof.
Summary of the invention
In order to solution framework beam cannot function as the problem that combination beam is designed, the invention provides a kind of end plate connection monoblock type Composite frame beam and combinations thereof method, change the end structure of reinforcing bar, make to set up between reinforcing bar with end plate to be effectively connected.
The technical solution adopted for the present invention to solve the technical problems is: a kind of end plate connection monoblock type Composite frame beam, girder steel including a horizontally set, the two ends of described girder steel connect fixing to a vertical end plate and a vertically arranged steel column respectively, the end of described girder steel is welded with described end plate, and described end plate is connected with steel column through several the most spaced friction type high strength bolts；Described end plate upper end is welded with more than one U-shaped rebar connector；Described girder steel is overlaid with some horizontal reinforcing bars, and the two ends of two adjacent reinforcing bars are each welded into a π shape concrete-bar component, and described π shape concrete-bar component overlaps with described end plate through U-shaped rebar connector respectively；The π shape concrete-bar component at girder steel two ends is docked by reinforced bar sleeve in the middle part of girder steel；Also being equipped with a concrete slab on described girder steel, described reinforcing bar is all imbedded in described concrete slab.
Further, described U-shaped rebar connector is asymmetric U-shaped, the long side plate that is oppositely arranged by one, minor face plate and connect the connecting plate of long side plate and minor face plate and form, and the length difference of described long side plate and minor face plate is more than the diameter of described reinforcing bar.
Further, each U-shaped rebar connector minor face plate and long side plate are setting up and down on described end plate, and described long side plate welds with described end plate.
Further, described girder steel top flange plate surface is laterally spaced is welded with some pegs, and described peg is all imbedded in described concrete slab.
Further, described end plate uses groove full penetration weld to weld with the end of described girder steel.
Further, in described steel column, top flange plate and the bottom wing listrium end of corresponding described girder steel further respectively have a sash rib, the thickness of described sash rib is equal with the thickness of girder steel top flange plate and bottom wing listrium respectively, and the centrage of described sash rib centrage with girder steel top flange plate and bottom wing listrium respectively overlaps.
Further, groove full penetration weld is used to weld between described sash rib and flange plate and the web of steel column.
Further, described girder steel is I-steel or H-shaped steel.
The present invention also provides for the combined method of a kind of end plate connection monoblock type Composite frame beam as described above, comprises the following steps:
Step S1: first determine girder steel top flange plate and the link position of bottom wing listrium on steel column, and corresponding position arranges sash rib in steel column；
Step S2: using groove full penetration weld to weld between described sash rib and flange plate and the web of steel column, the centrage of sash rib centrage with girder steel top flange plate and bottom wing listrium respectively is directed at；
Step S3: several U-shaped rebar connectors are soldered to end plate upper end；
Step S4: use groove full penetration weld girder steel and end plate to be welded, and at girder steel top flange plate surface soldered peg；
Step S5: end plate is removably connected with steel column by friction type high strength bolt；
Step S6: by the end of two adjacent reinforcing bars respectively by being welded into π shape so that it is form some groups of π shape concrete-bar components；
Step S7: being overlapped with end plate by U-shaped rebar connector respectively by some groups of π shape concrete-bar components, the π shape concrete-bar component at girder steel two ends is docked by reinforced bar sleeve in the middle part of girder steel；
Step S8: casting concrete on girder steel, forms concrete slab above girder steel, reinforcing bar and peg is all imbedded in described concrete slab.
Compared with prior art, the beneficial effects of the present invention is: the Composite frame beam of the present invention changes the end structure of reinforcing bar, make to set up between reinforcing bar with end plate to be effectively connected, such that it is able to be all designed as combination beam in stress overall process (including that beam enters the plastic stage) by Vierendeel girder.Therefore, this Composite frame beam can make full use of steel and the combined effect of concrete, save material, and makes the design pattern of Vierendeel girder consistent with real work pattern, more safe and reliable.Simultaneously because be attached by rebar connector between reinforcing bar and end plate, it is to avoid reinforcing bar directly welds the serial harmful effect producing the steel column edge of a wing with steel column, as caused edge of a wing cripling, high welding residual stress etc..Additionally, this Composite frame beam also has convenient construction, facilitate the advantages such as reparation.
From the point of view of convenient construction and guarantee construction quality, the girder steel of this Composite frame beam, end plate, peg, U-shaped rebar connector can weld in factory in advance, form a girder steel assembly；π shape concrete-bar component is the most preferably prefabricated in the factory.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the partial enlarged drawing in Fig. 1 at A.
Fig. 3 is the I-I sectional view of Fig. 1.
Fig. 4 is the partial enlarged drawing in Fig. 3 at B.
Fig. 5 is the II-II sectional view of Fig. 1.
Fig. 6 is the partial enlarged drawing in Fig. 5 at C.
Fig. 7 is the three dimensional structure schematic diagram of Fig. 1.
In figure: 1-steel column, 2-girder steel, 3-end plate, 4-concrete slab, 5-reinforcing bar, 6-peg, 7-sash rib, 8-friction type high strength bolt, 9-reinforced bar sleeve, 10-U shape rebar connector；The long side plate of 100-；101-minor face plate；102-connecting plate.
Detailed description of the invention
For the features described above of the present invention and advantage can be become apparent, special embodiment below, and coordinate accompanying drawing, it is described in detail below.
As shown in figs. 1-7, the embodiment of the present invention provides a kind of end plate 3 to connect monoblock type Composite frame beam, girder steel 2 including a horizontally set, the two ends of described girder steel 2 are connected fixing for vertically arranged with one for a vertical end plate 3 steel column 1 respectively, the end of described girder steel 2 is welded with described end plate 3, and described end plate 3 is connected with steel column 1 through several the most spaced friction type high strength bolts 8；Described end plate 3 upper end is welded with more than one U-shaped rebar connector 10；Described girder steel 2 is overlaid with some horizontal reinforcing bars 5, and the two ends of two adjacent reinforcing bars 5 are each welded into π shape reinforcing bar 5 assembly, and described π shape reinforcing bar 5 assembly overlaps with described end plate 3 through U-shaped rebar connector 10 respectively；π shape reinforcing bar 5 assembly at girder steel 2 two ends is docked by reinforced bar sleeve 9 in the middle part of girder steel 2；Also being equipped with a concrete slab 4 on described girder steel 2, described reinforcing bar 5 is all imbedded in described concrete slab 4.
From the foregoing, the beneficial effects of the present invention is: this Composite frame beam can make full use of steel and the combined effect of concrete, save material, and make the design pattern of Vierendeel girder consistent with real work pattern, more safe and reliable.Simultaneously because be attached by reinforcing bar 5 connector between reinforcing bar 5 and end plate 3, it is to avoid reinforcing bar 5 directly welds the serial harmful effect producing steel column 1 edge of a wing with steel column 1, as caused edge of a wing cripling, high welding residual stress etc..
Further, described U-shaped rebar connector 10 is asymmetric U-shaped, the long side plate 100 that is oppositely arranged by one, minor face plate 101 and connect the connecting plate 102 of long side plate 100 and minor face plate 101 and form, the length difference of described long side plate 100 and minor face plate 101 is more than the diameter of described reinforcing bar 5.
Further, each U-shaped rebar connector 10 minor face plate 101 and long side plate 100 are setting up and down on described end plate 3, and described long side plate 100 welds with described end plate 3.As it is shown in figure 1, by by π shape reinforcing bar 5 assembly in minor face plate stretches to U-shaped reinforcing bar 5 connector, be positioned on described long side plate 100, convenient overlap joint.
Further, described girder steel 2 top flange plate surface is laterally spaced is welded with some pegs 6, and described peg 6 is all imbedded in described concrete slab 4.
Further, described end plate 3 uses groove full penetration weld to weld with the end of described girder steel 2.The reliability that Vierendeel girder is overall can be improved.
Further, in described steel column 1, top flange plate and the bottom wing listrium end of corresponding described girder steel 2 further respectively have a sash rib 7, the thickness of described sash rib 7 is equal with the thickness of girder steel 2 top flange plate and bottom wing listrium respectively, and the centrage of described sash rib 7 centrage with girder steel top flange plate and bottom wing listrium respectively overlaps.
Further, groove full penetration weld is used to weld between described sash rib 7 and flange plate and the web of steel column 1.
Further, described girder steel 2 is I-steel or H-shaped steel.Described steel column can also be other cross section shape steel.
The present invention also provides for a kind of end plate 3 as described above and connects the combined method of monoblock type Composite frame beam, comprises the following steps:
Step S1: first determine girder steel 2 top flange plate and the link position of bottom wing listrium on steel column 1, and corresponding position arranges sash rib 7 in steel column 1；
Step S2: using groove full penetration weld to weld between described sash rib 7 and flange plate and the web of steel column 1, the centrage of sash rib 7 centrage with girder steel 2 top flange plate and bottom wing listrium respectively is directed at；
Step S3: several U-shaped rebar connectors 10 are soldered to end plate 3 upper end；
Step S4: use groove full penetration weld girder steel 2 and end plate 3 to be welded, and at girder steel 2 top flange plate surface soldered peg 6；
Step S5: end plate 3 is removably connected with steel column 1 by friction type high strength bolt 8；
Step S6: by the end of two adjacent reinforcing bars 5 respectively by being welded into π shape so that it is form some groups of π shape reinforcing bar 5 assemblies；
Step S7: overlapped with end plate 3 by U-shaped rebar connector 10 respectively by some groups of π shape reinforcing bar 5 assemblies, π shape reinforcing bar 5 assembly at girder steel 2 two ends is docked by reinforced bar sleeve 9 in the middle part of girder steel 2；
Step S8: casting concrete on girder steel 2, forms concrete slab 4, reinforcing bar 5 and peg 6 is all imbedded in described concrete slab 4.
In sum, a kind of end plate connection monoblock type Composite frame beam that the present invention provides and combinations thereof method, Stability Analysis of Structures, safe and reliable, and it is prone to combination, convenient enforcement, application prospect is wide.
The above-listed preferred embodiment that the present invention provides; the object, technical solutions and advantages of the present invention are further described; it is it should be understood that; the foregoing is only presently preferred embodiments of the present invention; not in order to limit the present invention; all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (9)
1. an end plate connection monoblock type Composite frame beam, it is characterized in that, girder steel including a horizontally set, the two ends of described girder steel connect fixing to a vertical end plate and a vertically arranged steel column respectively, the end of described girder steel is welded with described end plate, and described end plate is connected with steel column through several the most spaced friction type high strength bolts；Described end plate upper end is welded with more than one U-shaped rebar connector；Described girder steel is overlaid with some horizontal reinforcing bars, and the two ends of two adjacent reinforcing bars are each welded into a π shape concrete-bar component, and described π shape concrete-bar component overlaps with described end plate through U-shaped rebar connector respectively；The π shape concrete-bar component at girder steel two ends is docked by reinforced bar sleeve in the middle part of girder steel；Also being equipped with a concrete slab on described girder steel, described reinforcing bar is all imbedded in described concrete slab.
A kind of end plate connection monoblock type Composite frame beam the most according to claim 1, it is characterized in that, described U-shaped rebar connector is asymmetric U-shaped, the long side plate that is oppositely arranged by one, minor face plate and connect the connecting plate of long side plate and minor face plate and form, the length difference of described long side plate and minor face plate is more than the diameter of described reinforcing bar.
A kind of end plate connection monoblock type Composite frame beam the most according to claim 2, it is characterised in that each U-shaped rebar connector minor face plate and long side plate are setting up and down on described end plate, and described long side plate welds with described end plate.
A kind of end plate connection monoblock type Composite frame beam the most according to claim 1, it is characterised in that described girder steel top flange plate surface is laterally spaced is welded with some pegs, and described peg is all imbedded in described concrete slab.
A kind of end plate connection monoblock type Composite frame beam the most according to claim 1, it is characterised in that described end plate uses groove full penetration weld to weld with the end of described girder steel.
A kind of end plate connection monoblock type Composite frame beam the most according to claim 1, it is characterized in that, in described steel column, top flange plate and the bottom wing listrium end of corresponding described girder steel further respectively have a sash rib, the thickness of described sash rib is equal with the thickness of girder steel top flange plate and bottom wing listrium respectively, and the centrage of described sash rib centrage with girder steel top flange plate and bottom wing listrium respectively overlaps.
A kind of end plate connection monoblock type Composite frame beam the most according to claim 6, it is characterised in that use groove full penetration weld to weld between described sash rib and flange plate and the web of steel column.
A kind of end plate connection monoblock type Composite frame beam the most according to claim 1, it is characterised in that described girder steel is I-steel or H-shaped steel.
9. the combined method of the end plate connection monoblock type Composite frame beam as described in any one of claim 1-8, it is characterised in that comprise the following steps:
Step S1: first determine girder steel top flange plate and the link position of bottom wing listrium on steel column, and corresponding position arranges sash rib in steel column；
Step S2: using groove full penetration weld to weld between described sash rib and flange plate and the web of steel column, the centrage of sash rib centrage with girder steel top flange plate and bottom wing listrium respectively is directed at；
Step S3: several U-shaped rebar connectors are soldered to end plate upper end；
Step S4: use groove full penetration weld girder steel and end plate to be welded, and at girder steel top flange plate surface soldered peg；
Step S5: end plate is removably connected with steel column by friction type high strength bolt；
Step S6 by the end of two adjacent reinforcing bars respectively by being welded into π shape so that it is form some groups of π shape concrete-bar components；
Step S7: being overlapped with end plate by U-shaped rebar connector respectively by some groups of π shape concrete-bar components, the π shape concrete-bar component at girder steel two ends is docked by reinforced bar sleeve in the middle part of girder steel；
Step S8: casting concrete on girder steel, forms concrete slab above girder steel, reinforcing bar and peg is all imbedded in described concrete slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610413215.5A CN105926774B (en) | 2016-06-13 | 2016-06-13 | A kind of end plate connection monoblock type Composite frame beam and combinations thereof method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610413215.5A CN105926774B (en) | 2016-06-13 | 2016-06-13 | A kind of end plate connection monoblock type Composite frame beam and combinations thereof method |
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| CN105926774B CN105926774B (en) | 2018-08-17 |
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Cited By (4)
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| CN106638961A (en) * | 2017-01-10 | 2017-05-10 | 北京交通大学 | Assembly type steel frame connection node with post-seismic recoverable function |
| CN108614936A (en) * | 2018-05-28 | 2018-10-02 | 湖南省建筑设计院有限公司 | Steel-concrete composite beam analysis of calculation models method based on peg connection |
| CN110805135A (en) * | 2019-11-26 | 2020-02-18 | 河南城建学院 | Assembled steel construction beam column node |
| CN113216380A (en) * | 2021-05-24 | 2021-08-06 | 哈尔滨工业大学 | Steel-concrete composite beam and concrete-filled steel tubular column joint and construction method |
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| CN106638961A (en) * | 2017-01-10 | 2017-05-10 | 北京交通大学 | Assembly type steel frame connection node with post-seismic recoverable function |
| CN108614936A (en) * | 2018-05-28 | 2018-10-02 | 湖南省建筑设计院有限公司 | Steel-concrete composite beam analysis of calculation models method based on peg connection |
| CN108614936B (en) * | 2018-05-28 | 2022-02-22 | 湖南省建筑设计院有限公司 | Steel-concrete combined beam calculation model analysis method based on stud connection |
| CN110805135A (en) * | 2019-11-26 | 2020-02-18 | 河南城建学院 | Assembled steel construction beam column node |
| CN113216380A (en) * | 2021-05-24 | 2021-08-06 | 哈尔滨工业大学 | Steel-concrete composite beam and concrete-filled steel tubular column joint and construction method |
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| Publication number | Publication date |
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| CN105926774B (en) | 2018-08-17 |
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