某双曲拱桥静载试验研究分析

随着各种灾害的日趋增加 ,现役桥梁遭到不同程度的破坏.为详细掌握桥梁病害状况 ,准确判断桥梁技术状况及实际承载能力 ,需要对现役桥梁进行静载实验.以山西某双曲拱桥为依托 ,对该双曲拱桥进行静载试验分析 ,通过计算及实验结果评价桥梁的使用性能.结果显示为 :0#桥台的竖向位移及横向位移在各工况作用下均为0mm,主梁挠度测点的校验系数在各工况都小于1,校验系数满足规范要求 ;桥梁结构虽然存在一定的损伤 ,但是其结构状态良好 ,满足基本运营要求.

Analysis of the Static Load Test of a Double Arch Bridge

With the increasing frequency of disasters ,many bridges were recently destroyed more or less .It is essential to carry out the static load test to estimate the bridge diseases situation in detail .Taking the double arch bridge in Shanxi province as an example ,calculation and analysis of onsite loading test were carried out .The results showed that the verti-cal displacement and horizontal displacement under various conditions about the 0# abutment was 0 mm .The calibration coefficient about the site of the girder deflection was less than 1 in every condition considered .This results also demon-strated that the calibration coefficient meet standard requirements .The experimental conclusion is that the bridge structure was safe although there were some damages and it can meet the requirements of basic traffic .