| 查看: 924 | 回复: 2 | |||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | |||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | |||
[交流]
求助：哪位大侠帮忙翻译下题目、摘要和关键词
|
|||
|
连续梁、连续刚构桥施工中腹板产生裂缝的机理及对策 摘 要：随着连续梁和连续刚构广泛的应用，发现一些桥梁在施工过程中腹板出现裂缝。裂缝的出现对结构的耐久性和使用性都有很大的影响。本文主要讨论了连续梁、连续刚构桥在采用悬臂现浇法施工时，由于纵向预应力钢筋偏离设计位置，造成腹板出现裂缝，并结合实际桥梁，运用ansys分析有竖向预应力和无竖向预应力作用对腹板内纵向预应力钢筋偏移后主拉应力的影响。由此说明，在施工过程中竖向预应力是控制腹板内部主拉应力的有效手段。并得出在实际施工过程中不妨考虑先张拉竖向预应力钢筋，再张拉纵向预应力钢筋行，以防止腹板混凝土内主拉应力超过混凝土抗拉强度而造成开裂的结论。 关键词：连续梁 连续钢构 腹板 裂缝 谢谢各位了！ [ Last edited by 11211121 on 2010-5-20 at 16:44 ] |
回复此楼» 猜你喜欢
今天维护系统维护 祝所有人 高中
已经有7人回复
-
读博的好处
已经有5人回复
-
哪位老哥知道今年的国自然具体哪一天放榜？
已经有16人回复
-
欢迎发来filecode的Mz6后的代码验证其规律
已经有98人回复
-
2027广东省杰青
已经有8人回复
-
快农历七夕节了，轻松一下，男人悄悄话，女施主请不要进来。
已经有5人回复
-
投稿咨询
已经有5人回复
-
时间戳变了，能看出什么问题？
已经有6人回复
-
93BebMhtakh前后11位开头都是大写
已经有5人回复
-
感觉是下周放榜了
已经有11人回复
11211121(金币+5, 翻译EPI+1):谢谢…… 2010-05-21 08:53:51
|
Continuous beam, continuous rigid frame bridge construction web Mechanism and countermeasures of cracks abstract:With the continuous beams and rigid frame a wide range of applications, cracks in the web are fond in a number of bridges during construction.The emergence of cracks on the structural durability and usability has a significant impact. When continuous beam, continuous rigid frame bridge in place using cantilever construction method,This paper discusses that as the deviation from the design of longitudinal prestressed reinforcement position, resulting in web cracks , and Combined with the actual bridge, using ansys analysis is vertical prestressed and non-vertical prestress on the web within the longitudinal tensile stress in prestressed reinforced the impact of migration Houzhu. Results suggest that, in the construction process is to control vertical prestress within the web an effective means of principal tensile stress.And Obtained in the actual construction process may wish to consider the first vertical prestressed tension, then the longitudinal prestressed tension lines to prevent web principal tensile stress in concrete exceeds the tensile strength of concrete cracking caused by the conclusions. Keywords:Continuous beam Continuous steel Web Crack |
3楼2010-05-21 07:49:04
|
Continuous beam, continuous rigid frame bridge construction web Mechanism and countermeasures of cracks abstract:With the continuous beams and rigid frame a wide range of applications, cracks in the web are fond in a number of bridges during construction.The emergence of cracks on the structural durability and usability has a significant impact. When continuous beam, continuous rigid frame bridge in place using cantilever construction method,This paper discusses that as the deviation from the design of longitudinal prestressed reinforcement position, resulting in web cracks , and Combined with the actual bridge, using ansys analysis is vertical prestressed and non-vertical prestress on the web within the longitudinal tensile stress in prestressed reinforced the impact of migration Houzhu. Results suggest that, in the construction process is to control vertical prestress within the web an effective means of principal tensile stress.And Obtained in the actual construction process may wish to consider the first vertical prestressed tension, then the longitudinal prestressed tension lines to prevent web principal tensile stress in concrete exceeds the tensile strength of concrete cracking caused by the conclusions. Keywords:Continuous beam Continuous steel Web Crack |
2楼2010-05-21 07:48:33
