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| Tests for aseismic performance of recycled concrete large hollow shear wall with abandoned paving bricks as aggregate |
| SHA Dong1,SUN Jiangang2,3,PAN Baofeng1,WANG Zhen2,CUI Lifu2 |
1.Department of Construction Engineering, Dalian University of Technology, Dalian Liaoning 116023;
2.College of Civil Engineering, Dalian University for Nationalities, Dalian Liaoning 116605;
3.College of Civil Engineering, Lanzhou University of Technology, Lanzhou Gansu730050 |
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Abstract Physical properties tests for abandoned paving brick aggregate and basic mechanical performance tests for recycled concrete with abandoned paving bricks as aggregate were conducted,and effects of adding polypropylene fiber and fly ash into recycled concrete on its mechanical performance were studied. On the basis of tests,a design idea for recycled concrete large hollow shear wall was proposed. Quasi-static tests,finite element simulation and internal force calculation were performed for recycled concrete large hollow shear wall with abandoned paving bricks as aggregate. Furthermore,load-bearing capacity,failure mode,hysteresis characteristics,stiffness,degradation process,ductility and energy dissipation capacity of recycled concrete large hollow shear wall with abandoned paving bricks as aggregate were analyzed. The results showed that with polypropylene fiber added,basic mechanical performances of recycled concrete are improved to a certain extent; recycled concrete large hollow shear wall with abandoned paving bricks as aggregate has higher load-bearing capacity and aseismic performance; its theoretical calculation and finite element simulation results agree well with those of tests.
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Received: 23 September 2017
Published: 28 March 2019
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