Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Seismic Performance of Recycled Aggregate Concrete Block Structures
Abstract The experimental study was focused on the seismic performance of recycled aggregate concrete (RAC) hollow block walls confined by ring beam and tie column under low cyclic horizontal loading. Investigations on the damage process, failure mode, load-bearing, and deformation capacity show that the hollow block wall with RAC has favorable displacement ductility and energy dissipation capacity. Furthermore, the contribution of ring beam-tie column system to the seismic performance of RAC hollow block walls was also examined. The results show that the vertical compression stress of RAC hollow blocks is the main factor influencing the seismic performance, whereas the reinforcement ratio for ring beams and tie columns only has limited effects. Compared with the hollow block wall with NAC, the hollow block wall with RAC has similar seismic performance. Furthermore, a full-scale model of a RAC block masonry building with the tie column + ring beam + cast-in-situ slab system, was tested on the MTS shake table. The natural frequency, equivalent stiffness, structural damping ratio, acceleration response, seismic force response, displacement response, base shear response, structural fragility, etc. were analyzed and discussed. The test results demonstrate that RAC block masonry structure confined by the “tie column + ring beam” system is a good solution to withstanding earthquakes. The storey drift ratio and the overall behavior satisfy requirements of the Chinese design code. Generally, RAC block masonry structure bounded by the tie column-ring beam system with proper design exhibits good seismic behavior and can resist earthquake attacks under different seismic levels.
Seismic Performance of Recycled Aggregate Concrete Block Structures
Abstract The experimental study was focused on the seismic performance of recycled aggregate concrete (RAC) hollow block walls confined by ring beam and tie column under low cyclic horizontal loading. Investigations on the damage process, failure mode, load-bearing, and deformation capacity show that the hollow block wall with RAC has favorable displacement ductility and energy dissipation capacity. Furthermore, the contribution of ring beam-tie column system to the seismic performance of RAC hollow block walls was also examined. The results show that the vertical compression stress of RAC hollow blocks is the main factor influencing the seismic performance, whereas the reinforcement ratio for ring beams and tie columns only has limited effects. Compared with the hollow block wall with NAC, the hollow block wall with RAC has similar seismic performance. Furthermore, a full-scale model of a RAC block masonry building with the tie column + ring beam + cast-in-situ slab system, was tested on the MTS shake table. The natural frequency, equivalent stiffness, structural damping ratio, acceleration response, seismic force response, displacement response, base shear response, structural fragility, etc. were analyzed and discussed. The test results demonstrate that RAC block masonry structure confined by the “tie column + ring beam” system is a good solution to withstanding earthquakes. The storey drift ratio and the overall behavior satisfy requirements of the Chinese design code. Generally, RAC block masonry structure bounded by the tie column-ring beam system with proper design exhibits good seismic behavior and can resist earthquake attacks under different seismic levels.
Seismic Performance of Recycled Aggregate Concrete Block Structures
Xiao, Jianzhuang (Autor:in)
15.11.2017
44 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Seismic Performance of Recycled Aggregate Concrete Structures
| Springer Verlag | 2017
Seismic performance of frame structures with recycled aggregate concrete
| Online Contents | 2006
Seismic Performance of Recycled Aggregate Concrete Columns
| Springer Verlag | 2017