基于梁格法的宽箱梁桥静动载试验评估

采用空间梁格对某连续宽箱梁桥上部结构进行等效代替,建立该桥的空间梁格有限元计算模型,计算分析了设计活载及试验荷载作用下结构的静动载响应,同时基于理论分析结果对该桥进行了现场静动载试验研究及评估,分析及检测结果表明该桥整体刚度较大,承载能力较强,结构具有一定的安全储备。

Loading Test of a Wide Box Girder Bridge Based on Grillage Method

The paper used space grillage to replace the superstructure of a continuous wide box girder bridge,and established space grillage finite element model,based on it the static and dynamic response of the brodge was calculated under the design loading and the test loading.Meanwhile,the site static and dynamic loading test and evaluation for the bridge was carried out based on the theoretical analysis results.It shows that the overall stiffness and carrying capacity of the bridge meets the need of the design an...