文献类型：期刊文献

英文题名：Enhancing the In-Plane Behavior of a Hybrid Timber Frame-Mud and Stone Infill Wall Using PP Band Mesh on One Side

作者：Shen, Yinlan[1,2] Yan, Xingchen[1,2] Liu, Hui[3] Wu, Guofang[4] He, Wei[5]

第一作者：Shen, Yinlan

通信作者：Wu, GF[1]

机构：[1]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China;[2]Beijing Univ Technol, Beijing Key Lab Earthquake Engn & Struct Retrofit, Beijing 100124, Peoples R China;[3]Beijing Urban Construction Res Ctr, Urban Renewal Res Off, Beijing 101160, Peoples R China;[4]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[5]Beijing Univ Civil Engn & Architecture, Sch Civil & Transportat Engn, Beijing 100044, Peoples R China

年份：2022

卷号：14

期号：4

外文期刊名：POLYMERS

收录：;EI(收录号：20220811700421);Scopus(收录号：2-s2.0-85125007065);WOS:【SCI-EXPANDED(收录号:WOS:000765130300001)】；

基金：FundingThis work was supported by National Natural Science Foundation of China (52008011) and Science and Technology Project of Beijing Municipal Education Commission (KM201910005019) and China Postdoctoral Science Foundation (2019M660501) and Beijing Municipal Natural Science Foundation (8204058).

语种：英文

外文关键词：traditional village dwellings; seismic reinforcement; polypropylene band meshes; timber frames; mud and stone infill

摘要：Traditional village dwellings in China consisting of timber frames with mud and stone infill walls represent an important part of cultural heritage and civilization. Due to the lack of an effective link between the wood frame and the infill and the poor cohesiveness of clay, the masonry infill can collapse during an earthquake, whereas the wood frame suffers minimal damage. In this study, current retrofitting techniques for village buildings were investigated and discussed. A method using polypropylene (PP) band mesh and cement mortar to retrofit the timber frame with a mud and stone infill was proposed and the connection construction details were designed. In-plane static cyclic tests were conducted on two full-scale wood-stone hybrid walls reinforced on one side with different grid sizes of the PP band mesh. The failure behaviors of the reinforced and non-reinforced sides of the specimens were compared, and the failure mechanics and seismic capacity of the two specimens, i.e., the strength, stiffness, ductility, and energy dissipation, were investigated. The results were also compared with those of a previous frame with stone infill without pebbles and no reinforcement. The study indicated that the retrofitting method strengthened the integrity and lateral resistance of the hybrid structure and prevented the collapse of the stone infill of the reinforced surface in a plane earthquake. The grid size of the PP band mesh substantially affected the lateral performance of the reinforced specimens. The hybrid wall with the narrow PP band mesh grid (150 mm x 150 mm) had a higher lateral stiffness (79%) and lateral capacity (50%) than the wall with the wide grid (250 mm x 250 mm). However, the narrow PP band mesh resulted in a lower ductility of the wall than the wide PP band mesh. The involvement of pebbles in the stone infill led to collapses sooner and a weaker lateral resistance than in the structure without pebble infill.