从结构构造 力学特性 适用范围 结构内力计算方法 主要施工工艺五个方面对梁式桥 拱式桥 悬索桥 斜拉桥对比

要2500字 跪求
2025-04-03 10:59:30
推荐回答(1个)
回答1:

梁式桥:构造可分为上,下部与支座,或者公路常用的五大部件与五小部件(五大:梁,墩,支座,伸缩缝,桥面板,五小部:栏杆,照明,排水,桥面铺装,忘了...)构造简单,计算图示可简化为简支梁或连续梁桥,其中简支梁以承受正弯矩为主,连续梁在中间支墩处有负弯矩.适用于跨度不大于60m的情况.施工分为现场浇筑与梁场预制.现场浇筑也叫现浇,可分为满堂支架(膺架法施工),对称挂篮浇筑(悬臂施工),顶推施工,转体施工.预制就简单了,吊装,节段拼装,没了.内力计算的话计算简图为简支梁图,内力以弯矩为主,剪力不控制设计,没有轴力,目前公路规范采用极限状态设计法,铁路还是容许应力法,跑题了...
拱式桥:主体部分受力部分为拱肋,还有拱上建筑与基础,其中拱圈线性为合理拱轴线时,拱内只有轴力没有弯矩,一般不可能,采用五点法调整线性.适用于地基基础承载力好,特别是深深的事业线那种V型河谷,跨度较大的河段,结构计算简图多为无铰拱或者系杆拱,超静定结构,力法结合有限元算法.施工采用转体施工,预制拼装,劲性骨架发,悬臂浇筑(也叫斜拉后挂).
悬索桥:接触过的唯一一个悬索桥...拆了...伤心了,不再了解

斜拉桥:

突然我就看到2500字的要求...我觉得桥梁专业的还是好好学学这些吧...

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