土木工程与管理学报2011，Vol.28Issue(4)：34-38,5.
移动式加载系统中运送动载对支撑架的影响
Analysis of the Bridge Scaffold Under the Influence of Transportable Dynamic Load in the Portable Loading System
余舜 1张娟 1王平 2郑俊杰1
作者信息
- 1. 华中科技大学土木工程与力学学院,湖北武汉430074
- 2. 中国—冶集团有限公司,湖北武汉430081
- 折叠
摘要
Abstract
Deficiencies of traditional pre-loading tests of bridge scaffolds can be overcome by using new portable loading systems. The effect of transportable loads of small vehicle involved in the portable loading system needs to be considered in design. According to the mechanical characteristics of the new portable loading system, a series of three-dimensional elastic numerical modeling models was established. The influence of transportable loads on bridge scaffolds was calculated and analyzed. Then the results of transportable load under different velocities were compared to obtain the regularity of the dynamic response. The results showed that the percentage of the transportable load of the small crane represented by the total load was sinking with the process of pre-loading. The difference value of maximum static and dynamic responses was sinking progressively. The growth tendency of maximum dynamic response was non-linear and the variation rate increases with the velocity of the small vehicle.关键词
桥梁支撑架/可移动式加载系统/预制块/运送荷载/动力响应/数值模拟Key words
bridge scaffold/portable loading system/prefabricated concrete block/transportable load/dynamic response/ numerical simulation分类
交通工程引用本文复制引用
余舜,张娟,王平,郑俊杰..移动式加载系统中运送动载对支撑架的影响[J].土木工程与管理学报,2011,28(4):34-38,5.
