CAJ | 학술논문

车辆荷载模式随着中国桥梁相关规范的更新进行了调整，以空心板桥为研究对象，利用 Midas／Civil 建模分析。分别针对《城市桥梁设计准则》（CJJ1l －93）、《城市桥梁设计荷载标准》（CJJ77－98）和《城市桥梁设计规范》（CJJ11－2011）3种不同时期发布的规范要求的标准车辆荷载进行加载，计算并分析新旧规范下的荷载组合效应差异，以及挠度和冲击系数之间的差别。研究结果表明，对于简支空心板桥，必须加强支座处抗剪验算；同时，在 3种不同时期城市桥梁设计规范的标准车辆荷载（不计冲击力）作用下产生的挠度效应均能满足各自规范要求。
차량하재모식수착중국교량상관규범적경신진행료조정，이공심판교위연구대상，이용 Midas／Civil 건모분석。분별침대《성시교량설계준칙》（CJJ1l －93）、《성시교량설계하재표준》（CJJ77－98）화《성시교량설계규범》（CJJ11－2011）3충불동시기발포적규범요구적표준차량하재진행가재，계산병분석신구규범하적하재조합효응차이，이급뇨도화충격계수지간적차별。연구결과표명，대우간지공심판교，필수가강지좌처항전험산；동시，재 3충불동시기성시교량설계규범적표준차량하재（불계충격력）작용하산생적뇨도효응균능만족각자규범요구。
The vehicle load patterns have changed along with the updating of Chinese bridge design codes .To investigate the different load effect combinations ,deflections ,and impact coefficients under old and new Chinese codes ,simply sup-ported hollow slab bridges were analyzed based on real engineering projects .The FEM software MIDAS /Civil was adopted to establish the numerical model .Different vehicle load patterns defined in 3 versions of Chinese bridge design codes , which are Code for Design of the Municipal Bridge(CJJ 11 - 93) , The Standard of Loadings for the Municipal Bridge Design(CJJ 77 - 98) ,and Code for Design of the Municipal Bridge(CJJ 11 - 93) ,were used in the analyzing process . The difference of load effect combinations ,deflections ,and impact coefficients under the 3 versions were studied .The research result indicates that the shearing resistances of bridge bearings are essential for simply supported hollow slab bridges .The deflection effects of the different vehicle load patterns can respectively meet the requirements of the 3 codes .