摘要
参考静冰荷载引起的桥梁事故,分析冰层在桥墩前的破坏模式,建立合理的计算方法。针对计算公式中冰的抗压强度取值不明确的问题,结合相关研究中的试验参数,应用有限元软件计算得出冰与桥墩的相互作用力,进而反算得到计算公式中冰的抗压强度值。对于类似的桥梁结构,可取为1.0MPa。计算结果表明,静冰荷载作用下前墩对后墩的遮蔽效应不明显。
The failure modes of ice layers in front of bridge piers are analyzed by referencing bridge accidents caused by static ice load,and the reasonable calculation method is established.In response to the issue of unclear values for the compressive strength of ice in the calculation formula,combined with experimental parameters from relevant research,the interaction force between ice and bridge piers is calculated by using the finite element software,and then the compressive strength value of ice in the calculation formula is obtained through back calculation.For the similar bridge structure,it can be taken as 1.0 MPa.The calculation results show that,the shielding effect of the front pier on the rear pier is not obvious under static ice load.
作者
张俊英
杨凯
金浩然
Zhang Junying;Yang Kai;Jin Haoran(Inner Mongolia Transportation Design and Research Institute Co.,Ltd.,Huhehot 010010,China)
出处
《北方交通》
2025年第8期1-4,共4页
Northern Communications
关键词
桥墩
静冰荷载
冰
抗压强度
遮蔽效应
Bridge pier
Static ice load
Ice
Compressive strength
Shielding effect
