Static Load Experiment of New Type of Laminated Plate Joint Structure(PDF)
《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]
- Issue:
- 2018年04期
- Page:
- 1-10
- Research Field:
- Publishing date:
Info
- Title:
- Static Load Experiment of New Type of Laminated Plate Joint Structure
- Author(s):
- WU Fang-bo; FU Wei; WEN Jun; OUYANG Jing; ZHOU Xu-hong
- College of Civil Engineering, Hunan University
- Keywords:
- aminated plate; serpentine reinforcement; crack; deflection; static load experiment; construction suggestion
- PACS:
- -
- DOI:
- -
- Abstract:
- The serpentine reinforcement was used to study the mechanical properties of laminated plate joint, and was compared with the steel mesh. The crack resistance of serpentine reinforcement was determined and comprehensively evaluated whether it could replace the traditional form of steel mesh. A two-point static loading test was carried out on the laminated plate. Through the test, a series of experiments of new type of laminated plate joint crack resistance were formed. By comparing the load-deflection curves, the stiffness change process and the deflection development process were analyzed, and the occurrence and development of cracks were recorded. The bending deformation diagram of serpentine reinforcement was analyzed. The extrusion pressure of serpentine reinforcement on the concrete after bending deformation was obtained, and the design suggestion of the construction measures was given. The results show that under the condition of lower reinforcement ratio, the overall stiffness of laminated slab PK-S is strong, the yield segment of loaddeflection curve is longer, and the ductility does not degenerate. The development of cracks is slow, and the serpentine reinforcement has obvious inhibition on the development of cracks. There is not much difference between the cracks in the serpentine reinforced laminated slab and the contrast group, even the number of cracks is larger than that in the contrast group. The anti cracking effect of serpentine reinforcement is better than that of steel mesh. The angle range is 40° to 60°. After processing, it is best to reach about 60°, so that the serpentine reinforcement with good posture can be obtained.
Last Update: 2018-07-18