防灾减灾工程学报2012，Vol.32Issue(1)：111-116,6.
钢结构高温响应影响因素的研究
Influence Parameters on Temperature Response of Steel Structure
摘要
Abstract
Based on the basic equations of the nonlinear response of steel structures at the room temperature and high temperature, in which the effects of different factors, such as the geometric and material nonlinearity, the linear distribution of temperature along the longitudinal section are introduced, an computational program is developed and applied to investigate the nonlinear temperature response of one-story-two-span steel frame structures. The influence of the bending strain, the yielding-strength ratio, the stiffness ratio of beam to column and the initialize elastic module are analyzed, and the influence of the temperature step and the protection thickness on the fire resistance time of the structure is investigated too. The analysis results show that the bending strain, the yielding-strength ratio, the stiffness ratio of beam to column have evident effect on the middle deflection of beams and the top horizontal displacement of the side column, while have little effect on the top vertical displacement of the column. For these structures with the fire protection, the time step has little effect on the fire resistance time, while the effect of the protection thickness is evident.关键词
影响参数/弯曲应变/屈服强度/初始弹性模量Key words
influence parameter/ bending strain/ yield strength/ initial elastic modulus分类
建筑与水利引用本文复制引用
江雪玲,魏德敏..钢结构高温响应影响因素的研究[J].防灾减灾工程学报,2012,32(1):111-116,6.基金项目
国家自然科学基金重点项目(50738005)资助 （50738005）
