砌块砌体结构温度作用与荷载效应组合研究  

Research of the combined effects by temperature action and the loads on the block masonry structure

作　　者：叶甲淳[1] 金伟良[2] 杨学林[1] 

机构地区：[1]浙江省建筑设计研究院,杭州310006 [2]浙江大学结构工程研究所,杭州310058

出　　处：《建筑结构》2012年第8期127-132,共6页Building Structure

摘　　要：针对现有的砌体结构设计规范未涉及温度作用效应的计算与组合问题,通过实测温差与气象资料计算温差的对比,给出了一种通过气象参数计算设计基准期内结构温差的方法。在此基础上结合一小砌块试点建筑给出了设计基准期内的年温差、日温差和组合温差统计参数。考虑了温度作用对承载能力的影响及荷载对顶层层间相对位移的影响:温度作用对砌体结构的抗压承载能力没有影响,但对顶层山墙的弯曲抗拉承载能力起控制作用,需要考虑温度作用与荷载的组合;常见荷载对顶层相对位移的影响可以忽略。提出了按承载能力设计时的温度作用分项系数取值,给出了考虑温度作用和荷载组合的顶层墙体弯曲拉应力计算公式。The effect of the temperature on the block masonry structure is not involved by the code for design of masonry structures. The method is introduced to calculate the thermal difference on the masonry structure by the meteorological statistical data. The data of the difference of temperature is calculated on a pilot block masonry structure by the method. The effects is considered by the displacement and stress of the pilot block masonry structure uder the combinated difference temperature. The effect of the temperature must be considered to the bend capacity of the top wall as the displacement is large. The coefficient is introduced by the combined temperature with loads on the masonry structure. The formula is deduced to calculate the stress of tension on the top wall of block masonry structures.

关 键 词：小砌块 砌块建筑 温度作用 荷载组合 气象统计资料 

分 类 号：TU375.61[建筑科学—结构工程] TU312.1