CAJ | 학술논문

为准确模拟新型抗震支座—速度锁定器在桥梁结构受地震荷载作用时的影响，以某连续刚构桥2×50 m+60 m+2×120 m+60 m为背景，采用专业有限元软件Midas Civil进行时程分析计算，采用黏滞阻尼器(方法A)、弹性约束(一般)方式(方法B)以及弹性约束(折线型)方式(方法C)三种简化方式模拟速度锁定器的作用。结果表明：速度锁定器通过将交接墩与刚构墩联动而减小整体位移，有利于改善桥梁结构在地震作用时的纵桥向内力分布；采用的计算方法简洁高效，并确定在使用方法C时需将刚构墩处的内力结果放大1.06倍。
위준학모의신형항진지좌—속도쇄정기재교량결구수지진하재작용시적영향，이모련속강구교2×50 m+60 m+2×120 m+60 m위배경，채용전업유한원연건Midas Civil진행시정분석계산，채용점체조니기(방법A)、탄성약속(일반)방식(방법B)이급탄성약속(절선형)방식(방법C)삼충간화방식모의속도쇄정기적작용。결과표명：속도쇄정기통과장교접돈여강구돈련동이감소정체위이，유리우개선교량결구재지진작용시적종교향내력분포；채용적계산방법간길고효，병학정재사용방법C시수장강구돈처적내력결과방대1.06배。
In order to simulate accurately the influence of shock transmission unit ( STU ) under seismic loading of a continuous rigid frame bridge of 2 × 50 m+60 m+2 × 120 m+60 m, three kinds of simple methods are used including viscous dampers (Method A), general elastic restrain method (Method B) and the zigzag elastic restrain method ( Method C) , together with the assistance of finite element analysis software Midas Civil for dynamic time history analysis. Results show that shock transmission unit can reduce the overall displacement by means of the interlocking of the rigid pier the transfer pier, which helps improve the internal force distribution in longitudinal direction of bridge structure under earthquake action. The calculation methods used in this paper are proved simple and efficient and the internal force in the rigid pier is amplified to 1. 06 when method C is employed.