预应力混凝土连续箱梁桥极限承载能力实桥试验研究

Test Study of Ultimate Bearing Capacity of Practical Bridge of a Prestressed Concrete Continuous Box Girder Bridge

沪宁高速公路新兴塘大桥主桥极限承载能力试验是国内外首次预应力混凝土连续箱梁桥极限承载能力实桥试验。对该试验的方案、流程和结果进行介绍,并基于试验结果对该桥的承载能力、受力特性、破坏机理等进行分析。

The tests for the ultimate bearing capacity of main bridge of Xinxingtang Bridge on Shanghai-Nanjing Expressway are the tests having been made for the first time for ultimate bearing capacity of the practical bridges of prestressed concrete continuous box girder bridges at home and abroad. In this paper, the scheme, procedures and results of the tests are presented, and on the basis of the results, the bearing capacity, mechanical property and damage mechanism of the Bridge are analyzed as well.