曾家岩嘉陵江大桥船撞设防标准研究及防撞方案设计
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摘要
为判定曾家岩嘉陵江大桥所处的风险等级,以确定桥梁的设防船撞力标准,参考《重庆市三峡库区跨江桥梁船撞设计指南》,对该桥梁在目前、近期和远期的年碰撞频率和倒塌频率进行计算分析,与可接受的风险准则进行了对比,并通过建立桥梁、船舶精细化的三维有限元模型,采用动力数值模拟方法计算桥墩在不利撞击工况下的船撞力,从而确定了桥墩的船撞设防标准。同时为了避免桥墩局部损坏,降低碰撞事故中的船舶损伤,实现对桥梁和船舶的双重保护,提出了设置固定式复合材料防撞护舷的防撞方案。
In order to determine the risk level and fortification criteria of Zengjiayan Jialing River Bridge,the annual frequency of collision and collapse at present,in the short term and long term was analyzed respectively according to the Guide Specification for Vessel Collision Design of River-Crossing Bridges in Three Gorges Reservoir of Chongqing City,and the results were compared to the acceptable criteria for critical bridges. By building refined 3-D finite element models for both the bridge and ship,the collision force was calculated by numerical simulation of the ship colliding against the bridge pier under the adverse impact condition. Thus,the fortification criteria for Zengjiayan Jialing River Bridge was determined.Moreover,the design scheme of composite anti-collision fender was proposed to ensure the safety of both the bridge piers and vessels.
In order to determine the risk level and fortification criteria of Zengjiayan Jialing River Bridge,the annual frequency of collision and collapse at present,in the short term and long term was analyzed respectively according to the Guide Specification for Vessel Collision Design of River-Crossing Bridges in Three Gorges Reservoir of Chongqing City,and the results were compared to the acceptable criteria for critical bridges. By building refined 3-D finite element models for both the bridge and ship,the collision force was calculated by numerical simulation of the ship colliding against the bridge pier under the adverse impact condition. Thus,the fortification criteria for Zengjiayan Jialing River Bridge was determined.Moreover,the design scheme of composite anti-collision fender was proposed to ensure the safety of both the bridge piers and vessels.
引文
[1]苏剑南,王丰华.重庆市曾家岩嘉陵江大桥设计简介[J].公路交通技术,2016,32(6):38-42.SU Jiannan,WANG Fenghua. Brief introduction to design of Zengjiayan Jialing River Bridge of Chongqing[J].Technology of Highway and Transport,2016,32(6):38-42.
[2]范波,刘小勇,王元鑫.空间多曲面桥梁墩身施工模板设计研究[J].公路交通技术,2018,34(3):39-43.FAN Bo,LIU Xiaoyong,WANG Yuanxin. Study on the construction template of multi-curved bridge pier[J].Technology of Highway and Transport,2018,34(3):39-43.
[3]王君杰,耿波.桥梁船撞概率风险评估与措施[M].北京:人民交通出版社,2010.WANG Junjie,GENG Bo. Probabilistic risk assessment and safety measurements of bridge under vessel collisions[M]. Beijing:China Communications Press,2010.
[4]尚军年,耿波.船撞概率参数敏感性分析[J].公路交通技术,2016,32(6):28-31.SHANG Junnian,GENG Bo. Parameter sensitivity analysis of ship collision probability[J]. Technology of Highway and Transport,2016,32(6):28-31.
[5]向苇康,耿波,尚军年.船撞冲击荷载作用下桥墩抗力计算方法研究[C]//国际船桥相撞及其防护学术研讨会论文集.北京:中国铁道出版社,2014:101-106.XIANG Weikang,GENG Bo,SHANG Junnian. Study on calculation of capacity of bridge piers for bearing ship impact loads[C]//Proceedings of international symposium on ship-bridge collision and its protection.Beijing:China Railway Publishing House,2014:101-106.
[6]招商局重庆交通科研设计院有限公司,同济大学.重庆市三峡库区跨江桥梁船撞设计指南:DBJ/T 50-106—2010[S].重庆:重庆市城乡建设委员会,2010.China Merchants Chongqing Communications Research&Design Institute Co.,Ltd.,Tongji University. Guide specification for vessel collision design of river-crossing bridges in three gorges reservoir of Chongqing:DBJ/T 50-106—2010[S]. Chongqing:Chongqing Municipal Commission of Housing and Urban-Rural Development,2010.
[7]耿波,汪宏,王君杰.三峡库区桥梁船撞主要影响参数的概率模型[J].同济大学学报(自然科学版),2008(4):477-482.GENG Bo,WANG Hong,WANG Junjie. Probabilistic model of influence parameters for vessel-bridge collisions in three-gorges reservoir[J]. Journal of Tongji University(Natural Science),2008(4):477-482.
[8]耿波,汪宏,王福敏,等.三峡库区桥梁船撞概率计算模型研究[J].公路交通技术,2008(6):48-54.GENG Bo,WANG Hong,WANG Fumin,et al. Research on calculation model for probability of bridge crashed by vessels in three gorges area[J]. Technology of Highway and Transport,2008(6):48-54.
[9]耿波,王福敏,汪宏.三峡库区桥梁船撞技术与工程实践[M].北京:人民交通出版社股份有限公司,2016.GENG Bo,WANG Fumin,WANG Hong. Technology and engineering practice of bridges under vessel collisions in three gorges reservoir[M]. Beijing:China Communications Press Co.,Ltd.,2016.
[10]曹佰杨,李嵩林.涪陵乌江大桥复线桥船撞风险研究[J].公路交通技术,2016,32(2):51-56.CAO Baiyang,LI Songlin. Research on ship collision risk of double-line bridge in Fuling Wujiang River Bridge[J].Technology of Highway and Transport,2016,32(2):51-56.
[11]陈国虞.桥梁防船撞理念[C]//国际船桥相撞及其防护学术研讨会论文集.北京:中国铁道出版社,2014:24-29.CHEN Guoyu. Aspects of anti-collision on ship with bridge[C]//Proceedings of international symposium on ship-bridge collision and its protection. Beijing:China Railway Publishing House,2014:24-29.
[12]张志雄.桥梁复合材料防撞设施优化设计研究[D].重庆:重庆交通大学,2017.ZHANG Zhixiong. The optimization design research of bridge anti-collision facilities made by composite material[D]. Chongqing:Chongqing Jiaotong University,2017.
[13]耿波.新型复合材料防船撞技术与工程应用[J].中国公路,2015,5(9):89-92.GENG Bo. New technology for anti-collision utilizing composite material and its applications[J]. China Highway,2015,5(9):89-92.
[14]耿波,李嵩林,郑植.基于刚度匹配的桥梁附着式防船撞设施合理刚度取值研究[J].公路交通技术,2017,33(5):41-46.GENG Bo,LI Songlin,ZHENG Zhi. Study on rational rigidity valuing for bridge attached ship collision prevention facilities based on rigidity matching[J].Technology of Highway and Transport,2017,33(5):41-46.
[15]李嵩林,耿波,尚军年.环保型浮式柔性防撞装置试验与数值防撞研究[J].武汉理工大学学报(交通科学与工程版),2015,39(1):78-81.LI Songlin,GENG Bo,SHANG Junnian. Experimental study and numerical simulation on eco-friendly floating and flexible anti-collision devices[J]. Journal of Wuhan University of Technology(Transportation Science&Engineering),2015,39(1):78-81.
[2]范波,刘小勇,王元鑫.空间多曲面桥梁墩身施工模板设计研究[J].公路交通技术,2018,34(3):39-43.FAN Bo,LIU Xiaoyong,WANG Yuanxin. Study on the construction template of multi-curved bridge pier[J].Technology of Highway and Transport,2018,34(3):39-43.
[3]王君杰,耿波.桥梁船撞概率风险评估与措施[M].北京:人民交通出版社,2010.WANG Junjie,GENG Bo. Probabilistic risk assessment and safety measurements of bridge under vessel collisions[M]. Beijing:China Communications Press,2010.
[4]尚军年,耿波.船撞概率参数敏感性分析[J].公路交通技术,2016,32(6):28-31.SHANG Junnian,GENG Bo. Parameter sensitivity analysis of ship collision probability[J]. Technology of Highway and Transport,2016,32(6):28-31.
[5]向苇康,耿波,尚军年.船撞冲击荷载作用下桥墩抗力计算方法研究[C]//国际船桥相撞及其防护学术研讨会论文集.北京:中国铁道出版社,2014:101-106.XIANG Weikang,GENG Bo,SHANG Junnian. Study on calculation of capacity of bridge piers for bearing ship impact loads[C]//Proceedings of international symposium on ship-bridge collision and its protection.Beijing:China Railway Publishing House,2014:101-106.
[6]招商局重庆交通科研设计院有限公司,同济大学.重庆市三峡库区跨江桥梁船撞设计指南:DBJ/T 50-106—2010[S].重庆:重庆市城乡建设委员会,2010.China Merchants Chongqing Communications Research&Design Institute Co.,Ltd.,Tongji University. Guide specification for vessel collision design of river-crossing bridges in three gorges reservoir of Chongqing:DBJ/T 50-106—2010[S]. Chongqing:Chongqing Municipal Commission of Housing and Urban-Rural Development,2010.
[7]耿波,汪宏,王君杰.三峡库区桥梁船撞主要影响参数的概率模型[J].同济大学学报(自然科学版),2008(4):477-482.GENG Bo,WANG Hong,WANG Junjie. Probabilistic model of influence parameters for vessel-bridge collisions in three-gorges reservoir[J]. Journal of Tongji University(Natural Science),2008(4):477-482.
[8]耿波,汪宏,王福敏,等.三峡库区桥梁船撞概率计算模型研究[J].公路交通技术,2008(6):48-54.GENG Bo,WANG Hong,WANG Fumin,et al. Research on calculation model for probability of bridge crashed by vessels in three gorges area[J]. Technology of Highway and Transport,2008(6):48-54.
[9]耿波,王福敏,汪宏.三峡库区桥梁船撞技术与工程实践[M].北京:人民交通出版社股份有限公司,2016.GENG Bo,WANG Fumin,WANG Hong. Technology and engineering practice of bridges under vessel collisions in three gorges reservoir[M]. Beijing:China Communications Press Co.,Ltd.,2016.
[10]曹佰杨,李嵩林.涪陵乌江大桥复线桥船撞风险研究[J].公路交通技术,2016,32(2):51-56.CAO Baiyang,LI Songlin. Research on ship collision risk of double-line bridge in Fuling Wujiang River Bridge[J].Technology of Highway and Transport,2016,32(2):51-56.
[11]陈国虞.桥梁防船撞理念[C]//国际船桥相撞及其防护学术研讨会论文集.北京:中国铁道出版社,2014:24-29.CHEN Guoyu. Aspects of anti-collision on ship with bridge[C]//Proceedings of international symposium on ship-bridge collision and its protection. Beijing:China Railway Publishing House,2014:24-29.
[12]张志雄.桥梁复合材料防撞设施优化设计研究[D].重庆:重庆交通大学,2017.ZHANG Zhixiong. The optimization design research of bridge anti-collision facilities made by composite material[D]. Chongqing:Chongqing Jiaotong University,2017.
[13]耿波.新型复合材料防船撞技术与工程应用[J].中国公路,2015,5(9):89-92.GENG Bo. New technology for anti-collision utilizing composite material and its applications[J]. China Highway,2015,5(9):89-92.
[14]耿波,李嵩林,郑植.基于刚度匹配的桥梁附着式防船撞设施合理刚度取值研究[J].公路交通技术,2017,33(5):41-46.GENG Bo,LI Songlin,ZHENG Zhi. Study on rational rigidity valuing for bridge attached ship collision prevention facilities based on rigidity matching[J].Technology of Highway and Transport,2017,33(5):41-46.
[15]李嵩林,耿波,尚军年.环保型浮式柔性防撞装置试验与数值防撞研究[J].武汉理工大学学报(交通科学与工程版),2015,39(1):78-81.LI Songlin,GENG Bo,SHANG Junnian. Experimental study and numerical simulation on eco-friendly floating and flexible anti-collision devices[J]. Journal of Wuhan University of Technology(Transportation Science&Engineering),2015,39(1):78-81.