秸秆草砖填充墙对RC框架结构自振周期的影响研究  

Effect of Straw Brick Filling Wall on Natural Period of RC Frame Structure

作　　者：唐小宝 郭迅[1,2] 董策 董孝曜 王超 TANG Xiaobao;GUO Xun;DONG Ce;DONG Xiaoyao;WANG Chao(Institute of Disaster Prevention,Sanhe 065201,China;Key Laboratory of Building Collapse Mechanism and Disaster Prevention,China Earthquake Administration,Sanhe 065201,China;Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Mechanical Engineering,China Earthquake Administration,Sanhe 065201,China)

机构地区：[1]防灾科技学院,河北三河065201 [2]中国地震局建筑破坏机理与防御重点实验室,河北三河065201 [3]中国地震局地震工程与工程振动重点实验室,河北三河065201

出　　处：《防灾科技学院学报》2021年第3期1-7,共7页Journal of Institute of Disaster Prevention

基　　金：中央高校基本科研业务费(ZY20210308);国家重点研发计划(2016YFE0205100、2018YFC1504302-3);国家自然科学基金(51478117)。

摘　　要：通过对5个不同填充率的草砖填充墙框架结构有限元分析,研究了秸秆草砖填充率对框架结构自振周期的影响,并与普通红砖填充框架结构及纯框架结构模型自振周期进行对比。结果表明:秸秆草砖对RC框架结构的自振周期影响很小,随着秸秆草砖填充率的增加,结构的自振周期和周期折减系数都增加的非常少,相当于无填充墙的纯框架;普通红砖填充墙对框架结构的自振周期和周期折减系数影响均较大。Through the finite element analysis of five frame structures with different filling rate,we studied the effect of straw brick filling rate on the self-vibration period of the frame structure,and comparied with the self-vibration period of the ordinary red brick filling frame structure and pure frame structure models.As the results show,straw brick has little impact on the self-vibration period of RC frame structure,and both the structure vibration period and the periodic reduction coefficient get a very small increase with the rising filling rate,being equivalent to what's about the pure frame without filling wall.However,ordinary red brick filling wall has great influence on the self-vibration period and periodic reduction coefficient of frame structures.

关 键 词：秸秆草砖 自振周期 框架结构 填充率 

分 类 号：TU352[建筑科学—结构工程]