摘要
为了探讨既有ＲＣ桥梁的承载能力，作者对一座具有３０年运营历史、且存在较为严重损伤的ＲＣ梁进行了破坏试验，探讨了在设计荷载及极限荷载作用下梁中的应力、挠度及裂缝宽度的变化情况，并实测了极限荷载的大小以及混凝土和用筋的实际强度，文中还给出了评定既有ＲＣ桥梁的承载能力和损伤程度的方法。
In order to investigate the load capecity of existing concrete bridges,the bending tests of a 3O-year-old eoncrete railway bridge which was deteriorated seriously were conducted , from which the stresses,deflections and crack widthes under design loading and ultimate loading were observed,also the load capacity as well as the strength of concrete and steel. By analysing the test results , the method to evaluate the strength and the degree of deterioration of existing concrete railway bridges were given in this paper.
出处
《西南交通大学学报》
EI
CSCD
北大核心
1994年第4期423-428,共6页
Journal of Southwest Jiaotong University
