摘要
本文以单梁式简支斜梁桥为对象，分析、研究了其受力特性，导出斜梁内力的计算公式。通过分析比较可知，斜梁桥的斜梁弯矩小于同跨径正梁桥的正梁弯矩，斜梁跨中的弯矩值随着夹角的减小而减小。根据斜梁受弯扭藕合作用的特性，其横截面的型式以抗扭能力大的箱形截面为佳。
The single-beam and simple strut oblique bridge was used to analysethe character of bearing force,and the formula for internal force in obliquebeam was conducted. According to analysis and research,moment of turn onoblique beam of oblique bridge was less than that on ridge purlin of ridgebridge in the same span. With reducing of angle α,the value of moment ofturn on oblique beam span reduced.According to the characters of momentof turn on oblique beam coupling reaction,the box section that had moreresistant ability on moment of force was better.
出处
《浙江林学院学报》
CSCD
1995年第4期404-411,共8页
Journal of Zhejiang Forestry College
关键词
简支梁
内力
桥
simple beams,internal forces
bridges
