首页|变参数两跨四车道桥梁结构设计与分析

变参数两跨四车道桥梁结构设计与分析

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为探究两跨四车道桥梁在受到大型船舶撞击时的受力性能,结合第十六届全国大学生结构设计竞赛广东省分区赛赛题《撞击荷载下变参数两跨四车道桥梁结构设计与制作》要求,通过Midas Civil对承受移动荷载和撞击荷载的桥梁结构模型进行数值模拟计算与结构优化设计,最后通过加载试验对仿真计算结果进行验证.研究表明模型节点受力集中且制作复杂,桥梁三级加载时极易出现节点脱落与变形过大导致弦被压断,利用浸润胶水后的竹粉包裹或竹皮缠绕节点可起到较好的加强作用;将主要受力杆件截面设计成T字形,可增加杆件间的接触面积,有效防止加载车道不同引发桥梁偏载时的节点脱落问题.
DESIGN AND ANALYSIS OF TWO-SPAN FOUR-LANE BRIDGE STRUCTURE WITH VARIABLE PARAMETERS
With the requirements of the 16th National Structural Design Competition for College Students in Guang-dong province,the structural design and production of a two-span four-lane bridge with variable parameters under impact load are numerically simulated by Midas/Civil software to determine the structural optimization design,the re-sults from are verified by the experimental results.The results show that the string crushes during the three-stage loading of the bridge,resulting from falling off and deforming in the nodes that are stressed and complicated to be made.The nodes are strengthened by wrapping with bamboo skin or glue wetted bamboo powder.The section of the main bearing member is designed into T shape,which increase the contact area between the member and effectively prevent the problem of the joint falling off when the bridge is biased by different loading lanes.

large shipsmoving loadimpact loadtwo spans four lanesbridge structure

李邦桐、李波、孙树宏、艾心荧、罗振源

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东莞理工学院,生态环境与建筑工程学院,广东东莞 523808

大型船舶 移动荷载 撞击荷载 两跨四车道 桥梁结构

东莞理工学院质量工程项目土木工程施工教研室2021年东莞理工学院课程思政示范项目东莞理工学院2022年劳动教育示范项目

20210200120220200620222503221120015

2024

低温建筑技术
黑龙江省寒地建筑科学研究院

低温建筑技术

影响因子:0.237
ISSN:1001-6864
年,卷(期):2024.46(1)
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