RESEARCH ON CONNECTION TECHNIQUE FOR BIDIRECTIONAL COMPOSITE FLOOR SLABS WITHOUT GAP

CHEN Yihu; LU Dan; ZHANG Min; SUN Houwei; XIE Guangxin

doi:10.13204/j.gyjz202005006

Volume 50 Issue 5

Jul. 2020

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CHEN Yihu, LU Dan, ZHANG Min, SUN Houwei, XIE Guangxin. RESEARCH ON CONNECTION TECHNIQUE FOR BIDIRECTIONAL COMPOSITE FLOOR SLABS WITHOUT GAP[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(5): 31-35. doi: 10.13204/j.gyjz202005006

Citation:

CHEN Yihu, LU Dan, ZHANG Min, SUN Houwei, XIE Guangxin. RESEARCH ON CONNECTION TECHNIQUE FOR BIDIRECTIONAL COMPOSITE FLOOR SLABS WITHOUT GAP[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(5): 31-35. doi: 10.13204/j.gyjz202005006

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RESEARCH ON CONNECTION TECHNIQUE FOR BIDIRECTIONAL COMPOSITE FLOOR SLABS WITHOUT GAP

doi: 10.13204/j.gyjz202005006

1. Hezhou University, Hezhou 542800, China;
2. East China Architectural Design & Research Institute Co., Ltd., Shanghai 200041, China;
3. Guilin University of Technology, Guilin 541004, China;
4. Architectural Design & Research Institute of Tongji University(Group) Co., Ltd., Shanghai 200001, China

Received Date: 2019-11-11
Publish Date: 2020-07-14

Abstract

Abstract

A new type of connection technique for bidirectional composite floor slabs without gap was proposed. Full-scale tests on the construction of slabs' joints were carried out, and compared with cast-in-place slab. The mechanical properties of the new type of joint structure were studied, including the failure mode, bearing capacity, stiffness and crack distribution of floor slab. On the basis of the tests, a refined finite element analysis was performed, then the mechanism of force transfer between steel bar and concrete at the joint was deeply studied. The results showed that the mechanical properties of the new joint connected without gap was basically the same as that of the cast-in-place structure. The numerical calculation agreed well with the experimental results. The reinforcement at joint could effectively transfer structural internal force.
- composite floor slab,
- connection without gap,
- static test,
- concrete damaged plasticity model

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References(15)

References

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