[1]朱小青,陈淮,于品德..支座脱空对西张村大桥受力性能的影响[J].郑州大学学报(工学版),2010,31(05):70-73.[doi:10.3969/j.issn.1671-6833.2010.05.017]
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支座脱空对西张村大桥受力性能的影响()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
31
期数:
2010年05期
页码:
70-73
栏目:
出版日期:
2010-09-30

文章信息/Info

作者:
朱小青陈淮于品德.
郑州大学,土木工程学院,河南,郑州,450001, 郑州大学,土木工程学院,河南,郑州,450001, 郑州大学,土木工程学院,河南,郑州,450001
关键词:
连续梁桥 力学性能 有限元法 支座脱空
DOI:
10.3969/j.issn.1671-6833.2010.05.017
摘要:
采用梁格法建立西张村大桥有限元计算模型,计算了支座脱空对横向由多片T梁组成的连续梁桥力学性能的影响,给出了西张村大桥考虑支座脱空后桥梁的支反力、横梁和主梁的内力变化情况.计算结果表明:边支座脱空相对危险,支反力可增大到原支反力的2.704倍;支座脱空后与脱空前的横梁截面上最大剪力比值在6.919~19.266间,最大正弯矩比值可达18.9,最大负弯矩比值可达70.76;支座脱空使相邻主梁的剪力和弯矩增大;边支座相对中支座脱空对桥梁结构的受力性能影响更大.

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