双曲拱桥检测与技术状况及承载力评定

河北省邯郸市邢峰线武安县矿山双曲拱桥,经过检测病害较严重,出现病害的原因除该桥设计荷载标准较低外,还存在严重超载现象。通过桥涵养护技术规范及公路桥梁承载能力检测评定规程,该双曲拱桥技术状况及承载能力均被评定为四类桥梁。由此桥过往车辆较多,且时有重车通过,存在严重的安全隐患。同时双曲拱桥这种桥型已经过时,因此建议矿山双曲拱桥拆除新建。

Appraisal on Inspection Testing, Technical Status and Bearing Capacity of Double-curve Arch Bridge

The double-curve arch bridge in a mine of Wuan County in Xingfeng Line of Handan City in Hebei Province is damaged more seriously after inspected and tested.The fault causes are from the serious overloading and etc.besides the lower design loading standard of this bridge.According to the bridge culvert maintenance technical standard and the highway bridge bearing capacity inspection testing appraisal regulations,the technical status and bearing capacity of this double-curve arch bridge are all appraised as Class IV of bridge.There are the serious hidden dangers of security because of more vehicles and heavy-loading vehicles sometimes passing this bridge,and also this type of double-curve arch bridge has been out of date.Therefore,this double-curve arch bridge is proposed to demolish for renewal.