RACTURE PERFORMANCE ASSESSMENT OF SERVICE SAFETY FOR THE AGING STEEL TRUSS BRIDGE
The service safety for the aging steel truss bridges with cracking members, has aroused a great deal of attention. A variety of engineering accidents took place, in which the material stress is far lower than the yield strength of steel. Assessment of service safety for the aging steel truss bridges with cracking members, should be taken in many aspects. In this paper, it is introduced that the results of the nondestructive test and field dynamo-static tests and three-point bending tests of three specimens with mode-I fracture. The theories of fracture mechanics for evaluating the allowable stress and fatigue capability are provided. Finally, the assessment results of an aging steel truss bridge in Qiaihaer, China, are present according to the test results and theoretical values and the codes.
Service safety nondestructive test field dynamo-static tests three-point bending test mode-I fracture steel truss bridge fatigue capability
H. Chen R. Gao L. C. Jiang
School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing, China
国际会议
上海
英文
345-351
2007-11-28（万方平台首次上网日期，不代表论文的发表时间）