摘要
文章通过调查大量的U型桥台的健康情况,分析病害形成原因。并以昌樟高速破江小桥为例,采用有限元软件模拟破江小桥U型桥台在运营荷载作用下的应力场和位移场,分析认为台背内土压力和桥上压力共同作用使U台墙内产生较大的拉应力导致混凝土U型桥台开裂。
Based on the investigation of U type abutment crack, the crack factors of U type abutment crack are analyzed. Taking the U type abutment of Changzhang highway as an example, where the stress and strain of the U type abutment under the work loads are simulated, this paper comes to the conclusion that the crack problem of the U type abutment can be attributed to the joint work of the soil stress and bridge stress.
出处
《南昌航空大学学报（自然科学版）》
CAS
2009年第1期74-78,共5页
Journal of Nanchang Hangkong University(Natural Sciences)
基金
江西省交通厅科技项目"重力式U型桥台缺陷调查与处治研究"(200415)
关键词
U型桥台
裂缝
影响因素
成因分析
U type abutment
cracks
crack factors
cause analysis
