城市桥梁设计荷载标准的编制

The Standard of Loadings for the Municipal Bridge Design

建设部经过严格审查批准了由建设部城市建设研究室主编的《城市桥梁设计荷载标准》。编号为CJJ77-98的新规范由中国建筑工业出版社出版。自 1 998年 1 2月 1日起施行。并指定为强制性的行业标准。同济大学桥梁系作为参加单位参与了规范的研究与制订工作。现将编制过程的主要依据、内容及有关原则与重大改革做一说明。CJJ77-98规范由北京市市政工程研究院负责管理 ,建设部城市建设研究院负责具体解释工作。

Affer careful and severe approval by the Ministry of Con st ruction of Peoples Republic of China,the new code of the standard loadings for m unicipal bridge design is published (code Number CJJ77-98).This enforced code should be in action start ing from Dec.1 1998.The Bridge Department of Tongji University has participated the compilation and initial outline of the guide.This paper concentrates the dis cussion of the purposes contents,principles as well as the major innovation of t he standard highway loadings.The new code consists of standard traffic load and equivalent lane loading.For simplification and clarification,the municipal stand ard loading of traffic load are only classified into M_A and M_B loadings.