【摘要】 为了研究广州海珠桥桥面在地震荷载下的安全性能,根据《公路桥梁抗震设计规范》,借助大型有限元分析软件ANSYS,采用瞬态动力学分析方法,模拟了该桥桥面在2种不同震级的地震波下的响应。结果表明:在7.0级的地震作用下,海珠桥桥面的最大位移、最大应力均满足规范要求,而在8.0级地震的作用下,最大应力大于规范要求。因此,对于7级及以下的地震,海珠桥桥面具有可靠的安全性能,而要抵御8级以上的地震,则需要对桥桥面进行加固。更多还原

【Abstract】 To study the safety performance of deck slab of Guangzhou Haizhu bridge,general finite element analysis software ANSYS is used to conduct transient dynamic analysis.Responses of the bridge deck slab under two kinds of earthquake waves are simulated.The results show that the max stress and strain of the deck slab of the bridge meet the stipulations of the Code under the earthquake with Ms 7.0.However,the max strain is over criterion value under the earthquake with Ms 8.0.Therefore,Haizhu bridge deck slab is safe and reliable under magnitude earthquake with Ms 7.0 and needs to be reinforced to withstand earthquake with Ms 7.0.更多还原