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An Experim Ental Study on the Seismic Behavior of Recycled Concrete Frame Columns with Different Axial Compression Ratios

Author: ZhangJing
Tutor: ZhouAn
School: Hefei University of Technology
Course: Structural Engineering
Keywords: recycled concrete frame columns experiment researches axial compression ratio seismic behavior
CLC: TU375.4
Type: Master's thesis
Year: 2010
Downloads: 81
Quote: 0
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Abstract


The study of the waste concrete has been a hot question in the field of academy and Engineering in recent years, At present, the basic properties to recycled concrete is mature comparably, but the study to contract physical properties is still at the beginning period, especially the study to seismis behavior is black. Whether the recycled concrete and normal concrete is the same or not and if recycled concrete is put practice into civil engineering structures need to be further studied. In the paper, from the study of the experiments on 5 recycled concrete frame columns with 100% replacement ratio of coarse aggregate, under horizontal low repetition load experiment were done, we descried the specimens development of cracks and failure mechanism under axial compression ratio. Based on the data, we draws curves of every parts, analyses their hysteretic character mastics and calculated its load carrying capacity, ductility performance, the stiffness retrogression, energy dissipation and so on. Compared to normal concrete, we research on seismic behavior。Finally, the paper does the limited numerical simulation with the function of the monotony of the finite element load, and does the primary discussion. From the analysis of the experiment and theory, we get the following conclusions:the ultimate failure modes for higher xial compression ratio tested columns are Shear failure; recycled concrete frame columns seismic behavior is similar to normal reinforced concrete columns,,and the seismic performance of which is lower to that normal reinforced concrete columns. In the test sample based, the recycled concrete frame columns can be applied in seismic design.

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CLC: > Industrial Technology > Building Science > Building structure > Concrete structure,reinforced concrete structure > Reinforced concrete structures > Frame
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