BS5400与中国公路设计规范中的荷载及荷载组合

研究目的：本文重点介绍英国规范BS5400的第二部分有关荷载及荷载组合的规定，为采用国产软件进行BS规范桥梁设计荷载转换提供荷载数据。并为国内施工设计人员更好地了解BS5400规范，开拓更为广阔的国际市场提供帮助。研究方法：通过介绍和比较BS5400与中国公路桥涵设计规范JTGD60—2004的荷载及荷载组合，找出不同之处和相同点，加深对BS5400规范中荷载及荷载组合规定的认识。研究结论：BS5400规范中的HA荷载与中国公路规范中的车道荷载相似，HB荷载与车辆荷载相似；BS规范中HA和HB荷载能进行组合，而中国公路规范车道荷载和车辆荷载的作用不能重叠；从荷载的总的作用大小来看，BS规范要偏于安全，中国规范要偏于经济。

Compare BS5400 with Chinese General Code for Design of Highway in Loads and Combination of Loads

Research purposes: The paper specially introduces the specifications in BS5400 PART 2 for loads and combination of loads.It provides necessary data for loads exchange calculation when BS code is adopted to design bridges with Chinese computer software.It helps our civil engineers to better understand the specifications of BS5400 for loads and combination and to know more about the international construction market as well.Research methods:This paper makes a cooperation on BS5400 and Chinese general code for design of highway bridges and culverts(JTG D60 2004),and gives their difference and sameness.It will enhance to understand BS5400 specification for loads and combination.Research conclusions:It is similar between BS5400 HA and Chinese lane loads;as well as HB and Chinese vehicle loads;BS5400 HA and HB can be combined,however,the effect of lane loading and vehicle loading can not be superposed in JTG D60 2004.On the view of the total effect of loading,it focuses on safety in BS5400 codes;while for Chinese code,more consideration is given for economical result.