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Theoretical Analysis and Experimental Study on Coupling Beam with Small Span-to-Depth Ratio

Author: ZhangTao
Tutor: LiangXingWen
School: Xi'an University of Architecture and Technology
Course: Structural Engineering
Keywords: Coupling Beam with Small Span-to-Depth Ratio new reinforcement arrangement earthquake resistant performance non-linear finite element
CLC: TU352.11
Type: Master's thesis
Year: 2008
Downloads: 106
Quote: 1
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Abstract


Coupling beams are important energy dissipation elements of coupled walls.So the strength,stiffness,ductility and energy dissipating capacity of coupling beams can affect the performance of shear walls directly.The coupling beams with small span-to-depth ratio are usually adopted in the coupled walls or core-walls to assure the lateral stiffness of structures or using function.Test show that if these kinds of coupling beams are designed with seismic design methods of normal frame beams.The premature shear failure can not be avoided,so the ductility demand of the coupled walls or core-walls can not be satisfied.Aiming at the problem in engineering design,the test for six coupling beams with small span-to-depth ratio with new reinforcement scheme has been carried out.From the test the paper investigates the failure mode,deformation ability and energy dissipation.The test show,the new reinforcement arrangement scheme is superior in seismic performance and is easy for construction,so the reinforcement arrangement scheme of coupling beams with small span-to-depth ratio is an effective way to solve the seismic performance problem.By virtue of ANSYS,the paper analyzes the whole process of coupling beams with small span-to-depth ratio.All datas indicate the simulation results of coupling beams with small span-to-depth ratio were tallies with the experimental results.Base on the truss-arch model and experimental data of the coupling beam with small span-to-depth ratio from this paper and other researchers,the paper give the formula of the shear capacity of the coupling beam with small span-to-depth ratio,the calculated value is in good agreement with experimental value.

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CLC: > Industrial Technology > Building Science > Building structure > Special Structure > Anti - shock structure,disaster prevention structures > Shock, isolation, and explosion-proof structure > Seismic structure
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