采用有限元软件研究桥梁加载效率超限的问题  

To study the problem of excessive loading efficiency by using the bridge finite element software

作　　者：周琳琳[1] 贾海浩 

机构地区：[1]长安大学 [2]中国水电第十五工程局有限公司路桥工程公司

出　　处：《黑龙江交通科技》2015年第3期60-61,63,共3页Communications Science and Technology Heilongjiang

摘　　要：为了研究不等跨桥梁测试截面的加载效率超限问题,采用有限元软件MIDAS/CILVAL、桥梁博士,选择三种边跨、中跨跨径差距较大的连续梁并对其主要测试截面进行加载,并计算出加载效率,得出边跨最大正弯矩并不在0.4 L位置处及随着桥梁跨径增大,在测试墩顶断面时桥梁其他主要测试截面加载效率超限问题趋于明显的结论。In order to research on the problem of unequal loading efficiency over bridge test section, Using the finite element software MIDAS/CILVAL、Dr. Bridge, choose continuous beam of three large span, span the gap and loading of a test seetion, and calculate the loading effieieney, Come to the conclusion that the side span maximum positive moment is not in the 0.4L position and with increasing bridge spans other major test section loading efficiency exceeded problems become apparent when in the test section of bridge pier top.

关 键 词：测试截面 加载效率 有限元 连续梁 

分 类 号：U442[建筑科学—桥梁与隧道工程]