CN103938736B - Prefabricated superimposed primary-secondary beam connector and syndeton thereof - Google Patents
Prefabricated superimposed primary-secondary beam connector and syndeton thereof Download PDFInfo
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- CN103938736B CN103938736B CN201410181870.3A CN201410181870A CN103938736B CN 103938736 B CN103938736 B CN 103938736B CN 201410181870 A CN201410181870 A CN 201410181870A CN 103938736 B CN103938736 B CN 103938736B
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Abstract
The invention provides a kind of prefabricated superimposed primary-secondary beam connector, comprise be arranged on girder pre-erection upper surface and by the coated support end of girder lamination portion, pre-built in secondary beam pre-erection and by the coated prefabricated end of secondary beam lamination portion, connect described support end and prefabricated end and by the coated connecting portion of secondary beam lamination portion.After adopting concreting primary-secondary beam overlapping layers, primary-secondary beam forms firm entirety.The bond strength of this connector and beam is high, and anti-pulling ability is strong.In addition, present invention provides a kind of prefabricated superimposed primary-secondary beam syndeton using above-mentioned connector, this primary-secondary beam syndeton structural strength is high, and anti-pulling ability is strong, avoids the shear crack producing Prefabricated superposed beam, improves load-carrying ability and construction quality.
Description
Technical field
The present invention relates to construction engineering technical field, be specifically related to a kind of syndeton and special connecting piece thereof of prefabricated superimposed primary-secondary beam.
Background technology
The connector connected for prefabricated superimposed primary-secondary beam in prior art is a kind of hidden bracket, this hidden bracket is connected and composed by two pieces of parallel rectangular steel plates, rectangular steel plates two ends bottom welding cushion block, also be welded with the reinforcing bar stretched out downwards in the outside of rectangular steel plates, Bar Anchorage is in prefabricated superimposed secondary beam.Hidden bracket is as the connector of prefabricated superimposed primary-secondary beam, low with the bond strength of beam, anti-pulling ability; And reinforcing bar adopts welding manner to be fixed on outside steel plate, there is certain hidden danger of quality.
In prior art, the syndeton of primary-secondary beam is generally: establish transverse concave groove in girder junction, and this groove at girder is set up in the end of secondary beam, or adopts hidden bracket as primary-secondary beam connector, then adopts concreting to form primary-secondary beam syndeton.Precast main beam establish groove make precast main beam lift or transport time easily fracture, the quality problems such as crack, it is more weak to build rear primary and secondary beam nodes place bonding strength.Hidden bracket is adopted to improve the bonding strength at primary and secondary beam nodes place to a certain extent as the primary-secondary beam syndeton of connector, but still the structural strength that there is prefabricated superimposed primary-secondary beam junction is lower, anti-pulling ability, effectively can not prevent prefabricated superimposed stress beam from concentrating produced shear crack, affect load performance and construction quality.
Summary of the invention
Technical problem to be solved by this invention is: for solving the connector that prior art exists, low with the bond strength of beam, the problem of anti-pulling ability, a kind of special connecting piece for prefabricated superimposed primary-secondary beam syndeton is provided, improve with the bond strength of beam high, thus improve the anti-pulling ability of primary-secondary beam syndeton.Simultaneously low for solving prefabricated superimposed primary-secondary beam junction structural strength, secondary stress beam is concentrated and is easily produced shear crack and affect the problems such as construction quality, and provide a kind of prefabricated superimposed primary-secondary beam syndeton, structural strength is high, avoid prefabricated superimposed secondary beam to produce shear crack, improve load-carrying ability and construction quality.
The technical scheme that the present invention adopts for its technical problem of solution is: a kind of prefabricated superimposed primary-secondary beam connector, comprise be arranged on girder pre-erection upper surface and by the coated support end of girder lamination portion, pre-built in secondary beam pre-erection and by the coated prefabricated end of secondary beam lamination portion, connect described support end and described prefabricated end and by the coated connecting portion of secondary beam lamination portion.After building primary-secondary beam overlapping layers concrete, the support end of connector is coated by girder overlapping layers, and the connecting portion of connector is coated by secondary beam overlapping layers, and primary-secondary beam is connected into an entirety by connector.The bond strength of connector and Prefabricated superposed beam is greatly improved compared with the hidden bracket of prior art.
In prefabricated superimposed primary-secondary beam connector of the present invention, described connecting portion comprises two pieces and links together and flat board arranged in parallel, described prefabricated end is the dull and stereotyped end extending to secondary beam pre-erection, and described support end is the dull and stereotyped end extending to girder lamination portion.The binding ability that two pieces of above-mentioned parallel flats effectively can increase connector and girder and secondary beam is set, improves the anti-pulling ability of connector.
In prefabricated superimposed primary-secondary beam connector of the present invention, described platen parallel is in secondary beam place perpendicular, described prefabricated end is provided with the first deep floor perpendicular to described flat board, and described first deep floor is be arranged on the first junction plate being positioned at described prefabricated end place between described two pieces of flat boards.The first deep floor being arranged on prefabricated end can increase contact area and the binding ability of the prefabricated end of connector and secondary beam on the one hand, effectively can resist the topple stress of secondary beam pre-erection inner concrete to the prefabricated end of connector on the other hand.
In prefabricated superimposed primary-secondary beam connector of the present invention, described connecting portion place is provided with the second deep floor being parallel to secondary beam place horizontal plane, and described second deep floor is be arranged on the second junction plate being positioned at described connecting portion place between described two pieces of flat boards.The second deep floor being arranged on connecting portion can increase the bonding strength of secondary beam lamination portion and connector, and fixed connecting piece can be played when building primary-secondary beam overlapping layers concrete, the effect of stress is toppled in opposing.
In prefabricated superimposed primary-secondary beam connector of the present invention, described platen parallel is in secondary beam place perpendicular, described prefabricated end is provided with the many rivets perpendicular to described flat board, and described rivet is be arranged on the connecting reinforcement being positioned at described prefabricated end place between described two pieces of flat boards.The rivet being arranged on the prefabricated end of connector can resist that secondary beam is inner to topple stress to the part of prefabricated end, can play connection function again to two pieces of parallel flats.
In prefabricated superimposed primary-secondary beam connector of the present invention, described support end is provided with the support backing plate being parallel to girder upper surface, and described support backing plate is be arranged on the backing plate being positioned at described support end place between described two pieces of flat boards.The support backing plate of the prefabricated end of connector effectively can increase the contact area of connector and girder, prevent the local compressive stress of connector support end to girder pre-erection steel concrete excessive and damage concrete, protecting the complete and structural strength of prefabricated superimposed girder; On the other hand, the effect that backing plate also plays connection two pieces of flat boards and fixed connecting piece support end is supported.
In prefabricated superimposed primary-secondary beam connector of the present invention, described flat board adopts steel plate to make.Because the structural strength of steel plate is high, therefore the Punching Shear of connector, anti-shear ability are strong; And the stress that steel plate itself also can successfully manage prefabricated superimposed secondary beam is concentrated, avoid the shear crack of the prefabricated superimposed secondary beam occurring prior art, construction quality and security performance are protected.
Prefabricated superimposed primary-secondary beam syndeton of the present invention, comprise the girder and secondary beam that are linked together by connector, girder comprises pre-erection and lamination portion, secondary beam comprises pre-erection and lamination portion, described connector comprise be arranged on girder pre-erection upper surface and by the coated support end of girder lamination portion, pre-built in secondary beam pre-erection and by the coated prefabricated end of secondary beam lamination portion, connect described support end and prefabricated end and by the coated connecting portion of secondary beam lamination portion.After building primary-secondary beam overlapping layers, primary-secondary beam forms firm entirety by connector.Compared with prior art, precast main beam, without the need to as the transverse concave groove arranged in prior art for setting up prefabricated secondary beam, therefore improves the anti-pressure ability of precast main beam; And when lifting precast main beam not easily fracture, the quality problems such as crack; The structural strength at primary-secondary beam connected node place is large, and anti-pulling ability significantly improves, and the bonding strength of connector and primary-secondary beam is high, and secondary beam can be avoided to produce shear crack.
In prefabricated superimposed primary-secondary beam syndeton of the present invention, described secondary beam pre-erection is provided with the multiple stirrups extending to secondary beam lamination portion, and described connector connecting portion is through the top extending to described girder pre-erection after stirrup described at least one.After concreting, connector and secondary beam form firm entirety.The binding ability of connector and secondary beam can be improved like this, thus improve the anti-pulling ability of connector.
In prefabricated superimposed primary-secondary beam syndeton of the present invention, described girder pre-erection is provided with the multiple stirrups extending to girder lamination portion, be provided with the handling reinforcement running through all stirrups in described girder lamination portion, described connector support end is arranged on below described handling reinforcement.After concreting, connector and girder form firm entirety.The binding ability of connector and girder can be improved like this, thus improve the intensity of primary-secondary beam syndeton.
Accompanying drawing explanation
Fig. 1 is the structural representation of the prefabricated superimposed primary-secondary beam syndeton of the present invention;
Fig. 2 is the partial sectional view of the prefabricated superimposed primary-secondary beam syndeton of the present invention;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is the structural representation of the prefabricated superimposed primary-secondary beam connector of the present invention.
In figure, 1-connector support end, the prefabricated end of 2-connector, 3-connector connecting portion, 4-second deep floor, 5-first deep floor, 6-supports backing plate, 7-rivet, 8-girder pre-erection, 9-secondary beam pre-erection, 10-stirrup, 11-handling reinforcement.
Detailed description of the invention
The prefabricated superimposed primary-secondary beam connector of one of the present invention, mainly comprise be arranged on girder pre-erection upper surface and by the coated support end 1 of girder lamination portion, pre-built in secondary beam pre-erection and by the coated prefabricated end 2 of secondary beam lamination portion, connect support end and prefabricated end and by the coated connecting portion 3 of secondary beam lamination portion.
See Fig. 1 to Fig. 4, in a preferred embodiment of the invention, prefabricated superimposed primary-secondary beam connector is connected and composed by two blocks of parallel class right angle type steel plates, the horizontal sides of two blocks of parallel class right angle type steel plates is support end 1, vertical edge is prefabricated end 2, and the slabbed construction connecting horizontal sides and vertical edge is connecting portion 3.Support end 1 is arranged on girder pre-erection 8 upper surface and coated by girder lamination portion, and prefabricated end 2 is pre-coated by secondary beam lamination portion built in secondary beam pre-erection 9, and connecting portion 3 connects support end 1 and prefabricated end 2 and by secondary beam lamination portion institute coated.Two pieces of platen parallel of connecting portion 3 are in secondary beam place perpendicular, the first deep floor 5 perpendicular to flat board is provided with between two pieces of flat boards of prefabricated end 1, the second deep floor 4 being parallel to secondary beam place horizontal plane is provided with between two pieces of flat boards of connecting portion 3, be provided with the many rivets 7 perpendicular to flat board between two pieces of flat boards of prefabricated end 1, between two pieces of flat boards of support end 1, be provided with the support backing plate 6 being parallel to girder upper surface.
Prefabricated superimposed primary-secondary beam syndeton of the present invention, comprise the girder and secondary beam that are linked together by connector, girder comprises pre-erection 8 and lamination portion (not shown), secondary beam comprises pre-erection 9 and lamination portion (not shown), connector comprise be arranged on girder pre-erection 8 upper surface and by the coated support end 1 of girder lamination portion, pre-built in secondary beam pre-erection 9 and by the coated prefabricated end 2 of secondary beam lamination portion, connect support end and prefabricated end and by the coated connecting portion 3 of secondary beam lamination portion.
See Fig. 1 to Fig. 3, in a preferred embodiment of the invention, prefabricated superimposed primary-secondary beam syndeton comprises the girder and secondary beam that are linked together by connector, girder comprises girder pre-erection 1 and girder lamination portion (not shown), secondary beam comprises secondary beam pre-erection 9 and secondary beam lamination portion (not shown), connector is arranged on the termination of secondary beam and girder junction, and connector is connected and composed by two blocks of parallel class right angle type steel plates.The vertical edge part of two blocks of parallel class right angle type steel plates is prefabricated end 2, is embedded in secondary beam pre-erection 9; The horizontal edge of two blocks of parallel class right angle type steel plates is divided into support end 3, is arranged on girder pre-erection 8 upper surface; Connecting portion 3 connects support end 1 and prefabricated end 2, coated by secondary beam lamination portion.Preferably, secondary beam pre-erection 8 is provided with the multiple stirrups 10 extending to secondary beam lamination portion, and connector connecting portion 3 is through the top extending to girder pre-erection 8 after at least one stirrup.Girder pre-erection 8 is provided with the multiple stirrups 10 extending to girder lamination portion, and be provided with the handling reinforcement 11 running through all stirrups 10 in girder lamination portion 8, connector support end 1 is arranged on below handling reinforcement 11.
During the invention process, girder pre-erection is prefabricated respectively in factory with the secondary beam pre-erection being embedded with connector, during site operation, the support end of connector is placed in girder pre-erection upper surface, after founding vertically good and horizontal support, adopt the in-situ layer of the superimposed primary-secondary beam of concreting, make above-mentioned prefabricated superimposed primary-secondary beam form firm structural entity.
Claims (1)
1. a prefabricated superimposed primary-secondary beam connector, described connector comprise be arranged on girder pre-erection upper surface and by the coated support end of described girder lamination portion, pre-built in described secondary beam pre-erection and by the coated prefabricated end of described secondary beam lamination portion, connect described support end and described prefabricated end and by the coated connecting portion of described secondary beam lamination portion; Described connecting portion comprises two pieces and links together and flat board arranged in parallel, and described prefabricated end is the dull and stereotyped end extending to described secondary beam pre-erection, and described support end is the dull and stereotyped end extending to described girder lamination portion; It is characterized in that, described platen parallel is in described secondary beam place perpendicular, and described prefabricated end is provided with the first deep floor perpendicular to described flat board, and described first deep floor is be arranged on the first junction plate being positioned at described prefabricated end place between described two pieces of flat boards; Described connecting portion place is provided with the second deep floor being parallel to described secondary beam place horizontal plane, and described second deep floor is be arranged on the second junction plate being positioned at described connecting portion place between described two pieces of flat boards; Described platen parallel is in described secondary beam place perpendicular, and described prefabricated end is provided with the many rivets perpendicular to described flat board, described rivet be arranged on to be positioned between described two pieces of flat boards described prefabricated end place connecting reinforcement; Described support end is provided with the support backing plate being parallel to girder upper surface, and described support backing plate is be arranged on the backing plate being positioned at support end place between described two pieces of flat boards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410181870.3A CN103938736B (en) | 2014-05-04 | 2014-05-04 | Prefabricated superimposed primary-secondary beam connector and syndeton thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410181870.3A CN103938736B (en) | 2014-05-04 | 2014-05-04 | Prefabricated superimposed primary-secondary beam connector and syndeton thereof |
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| Publication Number | Publication Date |
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| CN103938736A CN103938736A (en) | 2014-07-23 |
| CN103938736B true CN103938736B (en) | 2016-04-20 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107313508B (en) * | 2017-05-04 | 2023-09-15 | 上海中建东孚投资发展有限公司 | Prefabricated assembly type main and secondary beam installation structure and installation method |
| CN110512730B (en) * | 2019-08-07 | 2022-08-12 | 泰州职业技术学院 | Assembled concrete primary and secondary roof beam connection structure |
| CN110541566B (en) * | 2019-09-26 | 2024-07-30 | 长沙远大住宅工业（江苏）有限公司 | Forming die, connecting node of floor slab and prefabricated wallboard and construction method of connecting node |
| CN111775306B (en) * | 2020-06-09 | 2021-10-29 | 吴灵芝 | Many stirrups of assembly building secondary beam pouring mould |
| CN111827472B (en) * | 2020-06-11 | 2021-08-24 | 周庆华 | Temporary fixing frame for mounting anchor plate of assembly building |
| CN111962667A (en) * | 2020-08-27 | 2020-11-20 | 上海天华建筑设计有限公司 | Connecting device for precast concrete beam |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004316322A (en) * | 2003-04-18 | 2004-11-11 | Takenaka Komuten Co Ltd | Construction method of column-beam skeleton by precast concrete member |
| KR100621539B1 (en) * | 2003-12-23 | 2006-09-13 | 동양종합건업 주식회사 | Method for connecting continuously P.S.C-Ibeam by steel bracket and its structure |
| CN101660327B (en) * | 2008-08-29 | 2011-07-20 | 万科企业股份有限公司 | Connecting structure of precast concrete secondary beam and main beam, construction method and building |
| CN203008140U (en) * | 2013-01-11 | 2013-06-19 | 长沙远大住宅工业有限公司 | Beam end connecting piece of precast beam component |
| CN202990122U (en) * | 2013-01-11 | 2013-06-12 | 长沙远大住宅工业有限公司 | Primary and secondary beam connecting piece for precast beam |
| CN203808261U (en) * | 2014-05-04 | 2014-09-03 | 长沙远大住宅工业有限公司 | Prefabricated superimposed main beam and auxiliary beam connecting member |
| CN203808262U (en) * | 2014-05-04 | 2014-09-03 | 长沙远大住宅工业有限公司 | Prefabricated superimposed main beam and auxiliary beam connecting structure |
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Address after: 410013 Changsha high tech Development Zone, Yuelu, Hunan Avenue, Changsha Yuanda Industrial Group Co., Ltd. Applicant after: CHANGSHA BROAD HOMES INDUSTRIAL INTERNATIONAL CO., LTD. Address before: 410013 Changsha Yuanda residential industry Co., Ltd., Yuelu Road, Changsha, Hunan, Yuelu District Applicant before: Changsha Yuanda Residential Industrial Co., Ltd. |
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Effective date of registration: 20170303 Address after: 410600 development road, Ningxiang Economic Development Zone, Changsha, Hunan, China Patentee after: NINGXIANG YUANDA RESIDENTIAL INDUSTRY CO., LTD. Address before: 410013 Changsha high tech Development Zone, Yuelu, Hunan Avenue, Changsha Yuanda Industrial Group Co., Ltd. Patentee before: CHANGSHA BROAD HOMES INDUSTRIAL INTERNATIONAL CO., LTD. |