CN103938736A - Prefabricated superposed primary and secondary beam connecting piece and prefabricated composite primary and secondary beam connecting structure - Google Patents
Prefabricated superposed primary and secondary beam connecting piece and prefabricated composite primary and secondary beam connecting structure Download PDFInfo
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- CN103938736A CN103938736A CN201410181870.3A CN201410181870A CN103938736A CN 103938736 A CN103938736 A CN 103938736A CN 201410181870 A CN201410181870 A CN 201410181870A CN 103938736 A CN103938736 A CN 103938736A
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- secondary beam
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Abstract
The invention provides a prefabricated superposed primary and secondary beam connecting piece. The prefabricated composite primary and secondary beam connecting piece comprises a supporting end, a prefabricated end and a connecting portion, wherein the supporting end is arranged on the upper surface of the prefabricated portion of a primary beam and is wrapped in the superposed portion of the primary beam, the prefabricated end is prefabricated on the prefabricated portion of a secondary beam and wrapped in the superposed portion of the secondary beam, the supporting end and the prefabricated end are connected through the connecting portion, and the connecting portion is wrapped in the superposed portion of the secondary beam. After concrete pouring of a primary and secondary beam superposed layer is completed, a firm whole of the primary beam and the secondary beam is formed. The combination strength between the connecting piece and the beams is high, and the tensile strength is high. In addition, the invention provides a prefabricated superposed primary and secondary beam connecting structure using the prefabricated superposed primary and secondary beam connecting piece, the prefabricated superposed primary and secondary beam connecting structure is high in structural strength and tensile strength, the prefabricated superposed primary and secondary beam is prevented from generating oblique cracks, and the loading capacity and the construction quality are improved.
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 connecting for prefabricated superimposed primary-secondary beam in prior art is a kind of hidden bracket, this hidden bracket is connected and composed by two parallel rectangular steel plates, rectangular steel plates two ends bottom welding cushion block, outside in rectangular steel plates is also welded with the reinforcing bar stretching out downwards, and 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 steel plate outside, has certain hidden danger of quality.
In prior art, the syndeton of primary-secondary beam is generally: establish transverse concave groove in girder junction, 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.Establish groove at prefabricated girder and make the quality problems such as prefabricated girder time easily fractures in lifting or transport, crack, build rear primary and secondary beam nodes place bonding strength a little less than.Adopt hidden bracket to improve to a certain extent the bonding strength at primary and secondary beam nodes place as the primary-secondary beam syndeton of connector, but still exist the structural strength of prefabricated superimposed primary-secondary beam junction lower, anti-pulling ability, the concentrated shear crack producing of prefabricated superimposed stress beam be can not effectively prevent, load performance and construction quality affected.
Summary of the invention
Technical problem to be solved by this invention is: the connector existing for solving prior art, 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, raising is high with the bond strength of beam, thereby improves the anti-pulling ability of primary-secondary beam syndeton.Simultaneously low for solving prefabricated superimposed primary-secondary beam junction structural strength, inferior stress beam is concentrated easy generation shear crack and is affected the problems such as construction quality, and a kind of prefabricated superimposed primary-secondary beam syndeton is provided, and structural strength is high, avoid prefabricated superimposed secondary beam to produce shear crack, improve load-carrying ability and construction quality.
The present invention for the technical scheme that its technical problem of solution adopts 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 the superimposed part of girder, in advance built in secondary beam pre-erection and by the coated prefabricated end of the superimposed part of secondary beam, connect described support end and described prefabricated end and by the coated connecting portion of the superimposed part of secondary beam.Build after 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 very big raising connector and Prefabricated superposed beam compared with the hidden bracket of prior art.
In prefabricated superimposed primary-secondary beam connector of the present invention, described connecting portion comprises two flat boards that link together and be arranged in parallel, described prefabricated end is the dull and stereotyped end that extends to secondary beam pre-erection, and described support end is the dull and stereotyped end that extends to the superimposed part of girder.The binding ability that two above-mentioned parallel flats can effectively 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 flat board is parallel to secondary beam place perpendicular, described prefabricated end is provided with the first deep floor perpendicular to described flat board, and described the first deep floor is to be arranged on the first junction plate that is positioned at described prefabricated end place between described two flat boards.The first deep floor that is 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, can effectively resist on the other hand the topple stress of the inner concrete of secondary beam pre-erection to the prefabricated end of connector.
In prefabricated superimposed primary-secondary beam connector of the present invention, described connecting portion place is provided with the second deep floor that is parallel to secondary beam place horizontal plane, and described the second deep floor is to be arranged on the second junction plate that is positioned at described connecting portion place between described two flat boards.The second deep floor that is arranged on connecting portion can increase the bonding strength of the superimposed part of secondary beam and connector, and in the time building primary-secondary beam overlapping layers concrete, can play the topple effect of stress of fixed connecting piece, opposing.
In prefabricated superimposed primary-secondary beam connector of the present invention, described flat board is parallel to secondary beam place perpendicular, described prefabricated end is provided with the many rivets perpendicular to described flat board, and described rivet is to be arranged on the connecting reinforcement that is positioned at described prefabricated end place between described two flat boards.The rivet that is arranged on the prefabricated end of connector can be resisted secondary beam inside to the part of the prefabricated end stress that topples, and can play connection function to two parallel flats again.
In prefabricated superimposed primary-secondary beam connector of the present invention, described support end is provided with the support backing plate that is parallel to girder upper surface, and described support backing plate is to be arranged on the backing plate that is positioned at described support end place between described two flat boards.The support backing plate of the prefabricated end of connector can effectively increase the contact area of connector and girder, prevent that connector support end is excessive and damage concrete to the local compressive stress of girder pre-erection steel concrete, protected the complete and structural strength of prefabricated superimposed girder; On the other hand, support backing plate and also play the effect that connects two flat boards and fixed connecting piece support end.
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 concentrates, avoid the shear crack of the prefabricated superimposed secondary beam that occurs prior art, construction quality and security performance are protected.
Prefabricated superimposed primary-secondary beam syndeton of the present invention, comprise the girder and the secondary beam that link together by connector, girder comprises pre-erection and superimposed part, secondary beam comprises pre-erection and superimposed part, described connector comprise be arranged on girder pre-erection upper surface and by the coated support end of the superimposed part of girder, in advance built in secondary beam pre-erection and by the coated prefabricated end of the superimposed part of secondary beam, connect described support end and prefabricated end and by the coated connecting portion of the superimposed part of secondary beam.Build after primary-secondary beam overlapping layers, primary-secondary beam forms firm entirety by connector.Compared with prior art, prefabricated girder, without the transverse concave groove as being provided for setting up prefabricated secondary beam in prior art, has therefore improved the anti-pressure ability of prefabricated girder; And when lifting prefabricated girder be difficult for fractureing, 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, can avoid secondary beam 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 that extend to the superimposed part of secondary beam, and described connector connecting portion extends to the top of described girder pre-erection after through stirrup described at least one.After concreting, connector and secondary beam form firm entirety.Can improve like this binding ability of connector and secondary beam, thereby 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 that extend to the superimposed part of girder, in the superimposed part of described girder, be provided with the handling reinforcement that runs through all stirrups, described connector support end is arranged on described handling reinforcement below.After concreting, connector and girder form firm entirety.Can improve like this binding ability of connector and girder, thereby improve the intensity of primary-secondary beam syndeton.
Brief description of the drawings
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-the second deep floor, 5-the 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 the superimposed part of girder, in advance built in secondary beam pre-erection and by the coated prefabricated end 2 of the superimposed part of secondary beam, connect support end and prefabricated end and by the coated connecting portion 3 of the superimposed part of secondary beam.
Referring to Fig. 1 to Fig. 4, in the preferred embodiment of 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 that connects horizontal sides and vertical edge is connecting portion 3.Support end 1 is arranged on girder pre-erection 8 upper surfaces and coated by the superimposed part of girder, and prefabricated end 2 is in advance built in secondary beam pre-erection 9 and coated by the superimposed part of secondary beam, and connecting portion 3 connects support end 1 and prefabricated end 2 and is coated by the superimposed part of secondary beam.Two flat boards of connecting portion 3 are parallel to secondary beam place perpendicular, between two flat boards of prefabricated end 1, be provided with the first deep floor 5 perpendicular to flat board, between two flat boards of connecting portion 3, be provided with the second deep floor 4 that is parallel to secondary beam place horizontal plane, between two flat boards of prefabricated end 1, be provided with many perpendicular to dull and stereotyped rivet 7, between two flat boards of support end 1, be provided with the support backing plate 6 that is parallel to girder upper surface.
Prefabricated superimposed primary-secondary beam syndeton of the present invention, comprise the girder and the secondary beam that link together by connector, girder comprises pre-erection 8 and superimposed part (not shown), secondary beam comprises pre-erection 9 and superimposed part (not shown), connector comprise be arranged on girder pre-erection 8 upper surfaces and by the coated support end 1 of the superimposed part of girder, in advance built in secondary beam pre-erection 9 and by the coated prefabricated end 2 of the superimposed part of secondary beam, connect support end and prefabricated end and by the coated connecting portion 3 of the superimposed part of secondary beam.
Referring to Fig. 1 to Fig. 3, in a preferred embodiment of the invention, prefabricated superimposed primary-secondary beam syndeton comprises the girder and the secondary beam that link together by connector, girder comprises girder pre-erection 1 and the superimposed part (not shown) of girder, secondary beam comprises secondary beam pre-erection 9 and the superimposed part (not shown) of secondary beam, 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 sides part of two blocks of parallel class right angle type steel plates is support end 3, is arranged on girder pre-erection 8 upper surfaces; Connecting portion 3 connects support end 1 and prefabricated end 2, coated by the superimposed part of secondary beam.Preferably, secondary beam pre-erection 8 is provided with the multiple stirrups 10 that extend to the superimposed part of secondary beam, and connector connecting portion 3 is through the top that extends to girder pre-erection 8 after at least one stirrup.Girder pre-erection 8 is provided with the multiple stirrups 10 that extend to the superimposed part of girder, in the superimposed part 8 of girder, is provided with the handling reinforcement 11 that runs through all stirrups 10, and connector support end 1 is arranged on handling reinforcement 11 belows.
When the invention process, girder pre-erection is prefabricated respectively in factory with the secondary beam pre-erection that is embedded with connector, when site operation, the support end of connector is placed in to girder pre-erection upper surface, stand after vertically good and horizontal support, the in-situ layer that adopts the superimposed primary-secondary beam of concreting, makes above-mentioned prefabricated superimposed primary-secondary beam form firm structural entity.
Claims (9)
1. a prefabricated superimposed primary-secondary beam connector, it is characterized in that, described connector comprise be arranged on described girder pre-erection upper surface and by the coated support end of the superimposed part of described girder, in advance built in described secondary beam pre-erection and by the coated prefabricated end of the superimposed part of described secondary beam, connect described support end and described prefabricated end and by the coated connecting portion of the superimposed part of described secondary beam.
2. the connector of prefabricated superimposed primary-secondary beam according to claim 1, it is characterized in that, described connecting portion comprises two flat boards that link together and be arranged in parallel, described prefabricated end is the dull and stereotyped end that extends to described secondary beam pre-erection, and described support end is the dull and stereotyped end that extends to the superimposed part of described girder.
3. the connector of prefabricated superimposed primary-secondary beam according to claim 2, it is characterized in that, described flat board is parallel to described secondary beam place perpendicular, described prefabricated end is provided with the first deep floor perpendicular to described flat board, and described the first deep floor is to be arranged on the first junction plate that is positioned at described prefabricated end place between described two flat boards.
4. the connector of prefabricated superimposed primary-secondary beam according to claim 2, it is characterized in that, described connecting portion place is provided with the second deep floor that is parallel to described secondary beam place horizontal plane, and described the second deep floor is to be arranged on the second junction plate that is positioned at described connecting portion place between described two flat boards.
5. the connector of prefabricated superimposed primary-secondary beam according to claim 2, it is characterized in that, described flat board is parallel to described secondary beam place perpendicular, described prefabricated end is provided with the many rivets perpendicular to described flat board, described rivet be arranged between described two flat boards, be positioned at described prefabricated end place connecting reinforcement.
6. the connector of prefabricated superimposed primary-secondary beam according to claim 2, is characterized in that, described support end is provided with the support backing plate that is parallel to girder upper surface, and described support backing plate is to be arranged on the backing plate that is positioned at support end place between described two flat boards.
7. a prefabricated superimposed primary-secondary beam syndeton, it is characterized in that, comprise the girder and the secondary beam that link together by connector, described connector comprises support end, prefabricated end and the connecting portion that is connected described support end and described prefabricated end, described connector support end is arranged on described girder pre-erection upper surface and coated by the superimposed part of described girder, the prefabricated end of described connector is in advance built in described secondary beam pre-erection and coated by the superimposed part of described secondary beam, and described connecting portion connects described support end and described prefabricated end and is coated by the superimposed part of described secondary beam.
8. prefabricated superimposed primary-secondary beam syndeton according to claim 7, it is characterized in that, described secondary beam pre-erection is provided with the multiple stirrups that extend to the superimposed part of secondary beam, and described connector connecting portion extends to the top of described girder pre-erection after through stirrup described at least one.
9. prefabricated superimposed primary-secondary beam syndeton according to claim 8, it is characterized in that, described girder pre-erection is provided with the multiple stirrups that extend to the superimposed part of girder, in the superimposed part of described girder, be provided with the handling reinforcement that runs through all stirrups, described connector support end is arranged on described handling reinforcement below.
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 |
Publications (2)
| Publication Number | Publication Date |
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| CN103938736A true CN103938736A (en) | 2014-07-23 |
| CN103938736B CN103938736B (en) | 2016-04-20 |
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| CN201410181870.3A Active CN103938736B (en) | 2014-05-04 | 2014-05-04 | Prefabricated superimposed primary-secondary beam connector and syndeton thereof |
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| CN107313508A (en) * | 2017-05-04 | 2017-11-03 | 上海中建东孚投资发展有限公司 | A kind of prefabricated assembled primary-secondary beam mounting structure and installation method |
| CN110512730A (en) * | 2019-08-07 | 2019-11-29 | 泰州职业技术学院 | A kind of assembly concrete primary-secondary beam connection structure |
| CN111775306A (en) * | 2020-06-09 | 2020-10-16 | 吴灵芝 | Many stirrups of assembly building secondary beam pouring mould |
| CN111827472A (en) * | 2020-06-11 | 2020-10-27 | 周兴龙 | 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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| CN111775306A (en) * | 2020-06-09 | 2020-10-16 | 吴灵芝 | Many stirrups of assembly building secondary beam pouring mould |
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| 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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| CN103938736B (en) | 2016-04-20 |
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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. |