网架结构温度作用取值及最不利工况确定  

Selection Methods of Temperature Action Values and Most Disadvantageous Working Condition of Grid Structures

作　　者：赵锐[1,2] 刘清 王海花[3] 马国杰 ZHAO Rui;LIU Qing;WANG Haihua;MA Guojie(College of Civil Engineering and Architecture,Xinjiang University,Urumqi 830047,China;Xinjiang Key Laboratory of Building Structures and Earthquake Resistance,Urumqi 830047,China;Xinjiang Branch of China MCC Group,Urumqi 830011,China)

机构地区：[1]新疆大学建筑工程学院,乌鲁木齐830047 [2]新疆建筑结构与抗震重点实验室,乌鲁木齐830047 [3]中国二十二冶集团新疆分公司,乌鲁木齐830011

出　　处：《工业建筑》2023年第10期88-93,共6页Industrial Construction

基　　金：新疆维吾尔自治区自然科学基金面上项目(2018D01C056)。

摘　　要：温度作用对大跨空间结构的影响不容忽视。由于温度作用的取值与地区有关,以乌鲁木齐站钢屋盖网架结构为工程实例,结合乌鲁木齐的气象数据及流场分析结果,提出不同类型温度作用的取值方法,然后将不同类型的温度作用分别加到结构的有限元模型中进行温度效应分析,依据结构的变形及受力情况得出极端日升温温差和极端年降温温差为最不利荷载,在以后的结构设计中应重点考虑,并用实测数据进行了验证。The effect of temperature on long-span space structures cannot be ignored.Temperature effect values related to the area,taking Urumqi Railway Station steel roof space truss structure as engineering example,combined with Urumqi meteorological data and the result of flow field analysis,different types of temperature effect accessor methods were put forward,and then the different types of temperature effects were taken into account in structural finite element model for temperature effect analysis,according to the deformation and force of the structure,it was concluded that the extreme daily temperature difference and the extreme annual temperature difference were the most unfavorable loads,which should be considered in the future structure design.

关 键 词：网架结构 温度作用 温度效应 温度场 选取方法 

分 类 号：TU356[建筑科学—结构工程]