(西安建筑科技大学土木工程学院， 西安 710055)

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

中图分类号:TU398. 7 文献标志码:A 文章编号:1002￣848X(2022)02￣0135￣05

DOI:10. 19701 / j.jzjg.20200235

Study on seismic performance test and restoring force model of new￣type mechanical raw earth brick masonry wall

ZHOU Tiegang， ZHANG Zaiyu

(School of Civil Engineering， Xi′an University of Architecture and Technology， Xi′an 710055， China)

Abstract: Raw earth buildings are widely distributed in Western China where the collapse of buildings caused serious lossesin the earthquake disasters. In order to improve the seismic performance of traditional raw earth buildings and retain thecharacteristics of residential buildings， mechanical raw earth bricks and two kinds of special mortars were used to buildwalls， and the seismic performance of new￣type mechanical raw earth brick masonry wall was studied through quasi￣statictests. The test results show that the curing agent in mortar can significantly improve the bearing capacity and deformationcapacity of wall， and the weakening effect of thickness of mortar on the seismic capacity of the wall is not significant. Afour￣fold skeleton curve model was established based on the dimensionless load￣displacement test data of the wall， and thecomparison between the model and the test data shows that the two are in good agreement. The results of this study have agood 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

∗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)。

第一作者:周铁钢，博士，教授，博士生导师，主要从事村镇建筑抗震工作，Email: zhoutiegang@ 126.com。

[引用本文] 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，2022，52(2):135￣139，126. ZHOU Tiegang，ZHANG Zaiyu. Study on seismic performance test and restoring force model of new￣typemechanical raw earth brick masonry wall[J]. Building Structure，2022，52(2):135￣139，126.