独柱墩桥梁抗倾覆验算及加固设计研究  

Research on Anti-overturning Checking Calculation and Reinforcement Design of Single-column Pier Bridge

作　　者：孟凡涛[1] 张秀玲 Meng Fantao;Zhang Xiuling(Shandong Transport Vocational College,Weifang,Shandong 261206;Shandong Jinyi Hengtong Testing Technology Co.Ltd.,Dongying,Shandong 257400)

机构地区：[1]山东交通职业学院,山东潍坊261206 [2]山东津益恒通检测科技有限公司,山东东营257400

出　　处：《江西建材》2024年第12期204-206,共3页

摘　　要：为提升桥梁整体的抗倾覆性能,文中以独柱墩桥梁工程为例,对不同条件下桥梁的稳定性系数进行分析,提出加固方案并对加固后的独柱墩桥梁抗倾覆性进行验算。结果表明,三种实际荷载工况下独柱墩桥梁的抗倾覆稳定性系数分别为0.86、0.65以及0.25,均低于抗倾覆稳定性条件,不满足JTG D60—2015《公路桥涵设计通用规范》的要求,需对独柱墩桥梁进行加固处理。经过方案比选确定,最终独柱墩桥梁的加固设计方案为部分墩顶加设钢盖梁和支座,墩身加钢套筒,加固施工后的桥梁工程抗倾覆稳定系数最小为6.2,最大为13.2,远远高于设计规范的要求值,表明采用的加固方案安全可靠性较高。In order to improve the overall anti-overturning performance of the bridge,this paper takes the single pier bridge project as an example,analyzes the stability coefficient of the bridge under different conditions,puts forward the reinforcement scheme,and checks the antioverturning performance of the reinforced single pier bridge.The results show that the anti-overturning stability coefficients of single-pier Bridges under the three actual load conditions are 0.86,0.65 and 0.25,respectively,which are all lower than the anti-overturning stability conditions and do not meet the requirements of JTG D60—2015 General Code for the Design of Highway Bridges and Culverts,and it is necessary to strengthen single-pier Bridges.After the scheme comparison selection,it is determined that the final reinforcement design of the single-column pier bridge is to add steel cover beam and support on the top of some piers,and steel sleeve on the pier body.After the reinforcement construction,the anti-overturning stability coefficient of the bridge project is at least 6.2 and at most 13.2,which is far higher than the required value of the design code,indicating that the adopted reinforcement scheme is safe and reliable.

关 键 词：桥梁工程 独柱墩 车辆荷载 抗倾覆验算 

分 类 号：U442[建筑科学—桥梁与隧道工程]