Analysis on Internal Foreces in Oblique Beam of Single-beam and Simple Strut Oblique Bridge.
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摘要: 本文以单梁式简支料梁桥为对象，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，其横截面的型式以杭扭能力大的箱形截面为佳。Abstract: The single-beam and simple strut oblique bridge was used to analyse the character of bearing force, and the formula for internal force in oblique beam was conducted. According to analysis and research, moment of turn on oblique beam of oblique bridge was less than that on ridge purlin of ridge bridge in thesame span. With reducing of angle , the value of moment of turn on oblique beam span reduced. According to the characters of moment of turn on oblique beam coupling reaction, the box section that had more resistant ability on moment of force was better.
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Key words:
- simple beams /
- internal forces /
- bridges
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