About the author:

1. Shaanxi Architecture Science Research Institute Co., Ltd., Xi􀆳an, Shaanxi 710082, China;2. Shaanxi Construction Engineering Quality Testing Center Co.,Ltd., Xi􀆳an, Shaanxi 710082, China;3. China United Northwest Institute for Engineering Design & Research Co., Ltd., Xi􀆳an, Shaanxi 710077, China

Abstract:

In order to study the seismic performance of the damaged brick hoop cave dwelling, theseismic reinforcement of a typical traditional brick hoop cave dwelling damage test model with a scaleratio of 1 ∶ 4 was carried out by cement mortar coating with polypropylene packaging belt mesh. In thetest, two natural waves and one artificial wave were selected as an earthquake input, analyzing thedamaged form of the structural model, the arch convergence deformation, and the lateral angle of the caveleg. The results show that the weakness of the damaged brick hoop cave dwelling strengthened by cementmortar coating with polypropylene packaging belt mesh under the action of earthquake is located in thearch and cave leg; As the peak of the input acceleration continues to increase, the arch convergencedeformation value and the lateral displacement angle of the cave leg is basically increasing. By the end ofthe load, the arch convergence deformation value is reduced by 1.36% and expanded by 0.83%,themaximum lateral angle of the cave leg is 1 / 29. Based on the degree of model structural damage, theconvergence deformation value of the arch, and the limit value of the cave leg lateral displacement angle,damage control indicators and evaluation methods for post⁃earthquake models were proposed. Therationality of the proposed evaluation method was verified by finite element software ABAQUS.