基于ANSYS研究综合效应对折线形钢梁跨中弯矩的影响  

RESEARCH OF THE INTEGRATED EFFECTS ON MID-SPAN MOMENT OF MANSARD STEEL BEAM BASED ON ANSYS

作　　者：张治新[1] 黄军超 崔文一[1] 

机构地区：[1]延边大学,吉林延吉133002

出　　处：《钢结构》2015年第7期15-18,共4页Steel Construction

摘　　要：采用ANSYS模拟折线形钢梁的受力,发现折线形钢梁的坡度不同,受力状态也不同。从受力状态来看,折线形钢梁结构体系属于压弯构件范畴;实际计算结果发现,ANSYS计算跨中截面的应力与按压弯构件计算的应力值相差较远。通过对荷载-位移曲线、屈服承载力、跨中截面应力的分析,研究综合效应对折线形钢梁跨中弯矩的影响,得出屈服承载力和跨中弯矩等随着坡度的变化规律。Software ANSYS was adopted to simulate the stress condition of mansard steel beam, and the results showed that the stress state changed with slope of mansard steel beam. Mansard steel beam structure system could be regarded as bending member in terms of stress state, the calculation results showed that the stress of mid-span section from ANSYS didn＇t coincide with the stress value of bending member. Through the analysis of load- displacement curve, yield bearing capacity and mid-span section, the integrated effects on mid-span moment of mansard steel beam were investigated, conclusions about regularity of yield bearing capacity and mid-span moment with the slope were proposed.

关 键 词：折线形钢梁 综合效应 跨中弯矩 

分 类 号：TU391[建筑科学—结构工程]