迈达斯预应力混凝土梁桥悬臂施工阶段分析专题

迈达斯预应力混凝土梁桥悬臂施工阶段分析专题

midasCivil 2010梁桥专题—混凝土梁桥

悬臂施工阶段分析

Integrated Solution System for Bridge and Civil Strucutres

迈达斯预应力混凝土梁桥悬臂施工阶段分析专题

1. 桥梁概况··············································································32. 结构概况··············································································43. 结构组、边界组、荷载组的定义······································ 94. 建立结构模型····································································· 115. 边界·····················································································126. 荷载·····················································································147. 钢束······················································································16·

8. 移动荷载··············································································199. 定义施工阶段······································································2310.查看施工阶段预拱度和0.5静活载预拱度·························25

迈达斯预应力混凝土梁桥悬臂施工阶段分析专题

midas Civil 2010

梁桥专题—预应力混凝土梁桥悬臂施工阶段分析

悬臂施工

1、桥梁概要1.1桥梁概况本桥为60+100+60三跨预应力混凝土连续梁铁路桥。主梁为单箱单室结构，梁宽12.2m,桥梁采用挂篮悬臂灌注法施工。通过本例题重点介绍midas Civil软件的施工阶段仿真模拟、施工预拱度的确定等。

1.2荷载(一)恒载1、结构自重：钢筋混凝土结构按，其余按《铁路桥涵设计基本规范》(TB 10002.1-2005)采用。

2、二期恒载：包括钢轨、扣件、枕木、道碴等线路设备重，以及防水层、人行道栏杆、人行道遮板、挡碴墙、电缆槽盖板及竖墙等附属设施重量。桥面二期恒载。 3、预应力及其次内力。

4、混凝土收缩和徐变的影响：环境条件按野外一般条件计算，相对湿度取70%。 5、钢束预应力损失。(二)活载 1、列车竖向静活载：ZK活载，双线按100%计。

(三)施工荷载挂篮重量(含模板)按

最大悬臂梁段重量确定，采用56t/套。

1.3施工方案最长节段长为4m,节段重量大。由于本桥为长联多跨结构，根据主跨合 …… 此处隐藏：1834字，全部文档内容请下载后查看。喜欢就下载吧 ……