摘要
以某跨径布置为65m+100m+65m的变截面三向预应力混凝土连续箱梁为例,由于在箱梁的内、外底板出现较多纵向裂缝,腹板出现较多的斜向裂缝,给桥梁的安全造成极大隐患。为使桥梁安全隐患降到最低,针对该变截面三向预应力混凝土连续箱梁静动载试验结果进行分析,评价其承载能力,并给出病害处治措施,为同类桥提供借鉴和参考。
Many longitudinal cracks appeared in the inside and outside box bottom slab of a variable crosssection and three dimension pre-stressed concrete continuous box girder bridge,whose span arrangement is 65＋100＋65m,and many diagonal cracks occurred in the webs,which both caused great hidden danger to the safety of the bridge.This paper presents an analysis of the static and dynamic load tests on the threespan continuous girder bridge to evaluate its carrying capacity,and some diseases treatment advice was put forward to provide reference for the same kind of bridge.
出处
《交通科技与经济》
2014年第2期66-70,共5页
Technology & Economy in Areas of Communications
基金
国家自然科学基金项目(50879097)
关键词
下承式
连续梁桥
静、动荷载试验
校验系数
through bridge
continuous girder bridge
static and dynamic load test
calibration coefficient
作者简介
张志刚（1987-）,男,硕士研究生,研究方向：桥梁减灾.
