新型机制生土砖砌体墙抗震性能试验及恢复力模型研究
引用文献：
周铁钢 张再昱. 新型机制生土砖砌体墙抗震性能试验及恢复力模型研究[J]. 建筑结构，2022，48（02）：135-139，126.
ZHOU Tiegang ZHANG Zaiyu. Study on seismic performance test and restoring force model of new-type mechanical raw earth brick masonry wall[J]. Building Structure，2022,48（02）：135-139，126.
摘要：生土建筑广泛分布于中国西部地区，在地震灾害中，由于房屋倒塌造成严重损失。为了改善传统生土建筑的抗震性能并保留特色民居，采用机制生土砖和两种专用砂浆制作墙体，通过拟静力试验研究新型机制生土砖砌体墙的抗震性能。试验结果表明：砂浆中的固化剂能够显著提升墙体的承载能力和变形能力，薄灰缝对墙体的抗震能力削弱效果不显著。对墙体的荷载-位移试验数据进行无量纲化，并建立四折线骨架曲线模型，对比发现两者吻合情况较好。研究结果对改善生土建筑的抗震性能，保护传统建筑有较好参考价值。
关键词：机制生土砖，抗震性能，恢复力模型，拟静力试验，砌体结构
基金：国家科技支撑计划项目(2014BAL06B03)；陕西省科技创新团队计划(2014KCT-31)；乡村既有农宅安全宜居性能改造关键技术研究与示范(2020ZDLNY06-03)。
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[7] 曹万林，张思，周中一，等.基础滑移隔震土坯组合砌体结构振动台试验[J].自然灾害学报，2015,24(6):131-138.
[8] 曹万林，张彩红，叶炜，等.不同构造土坯墙玻璃珠-石墨滑移隔震体系受力性能试验[J].世界地震工程，2017,33(2):169-177.
[9] 常卫华，王建卫，徐福泉，等.卧砌土坯墙体加固抗震性能试验研究[J].建筑结构，2012,42(9):126-130,102.
[10] 张艳青，贡金鑫，韩石.钢筋混凝土杆件恢复力模型综述(Ⅰ)[J].建筑结构，2017,47(9):65-70.
[11] 王振山，苏明周，马辉，等.单层单跨变截面轻型门式刚架荷载-位移恢复力模型研究[J].建筑结构，2015,45(15):12-16.
[12] 马辉，薛建阳，张锡成，等.型钢再生混凝土组合柱四折线恢复力模型研究[J].建筑结构，2015,45(11):55-59.
[13] 章钢雷，曹双寅，敬登虎，等.低竖向压应力水平下钢板-砖砌体组合框架恢复力模型研究[J].建筑结构，2012,42(S2):320-324.
Study on seismic performance test and restoring force model of new-type mechanical raw earth brick masonry wall
Abstract: Raw earth buildings are widely distributed in Western China where the collapse of buildings caused serious losses in the earthquake disasters. In order to improve the seismic performance of traditional raw earth buildings and retain the characteristics of residential buildings, mechanical raw earth bricks and two kinds of special mortars were used to build walls, and the seismic performance of new-type mechanical raw earth brick masonry wall was studied through quasi-static tests. The test results show that the curing agent in mortar can significantly improve the bearing capacity and deformation capacity of wall, and the weakening effect of thickness of mortar on the seismic capacity of the wall is not significant. A four-fold skeleton curve model was established based on the dimensionless load-displacement test data of the wall, and the comparison between the model and the test data shows that the two are in good agreement. The results of this study have a good reference value for improving the seismic performance of raw earth buildings and protecting traditional buildings.
Keywords: mechanical raw earth brick; seismic performance; restoring force model; quasi-static test; masonry structure
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