CAJ | 학술논문

碰撞是导致结构地震破坏的重要原因之一，其与两碰撞结构的动力性能和地震作用密切相关，应给出与两个结构动力参数相关的反应谱，以指导结构考虑碰撞的抗震设计。本文给出相邻结构碰撞加速度反应谱定义，推导了精细积分法碰撞计算公式，进行了该反应谱曲面的分析和探讨。结果表明，精细积分法适用于结构碰撞问题的计算，可得到高精度的解，无条件稳定且可提高计算效率。碰撞会加大结构的加速度响应；动力特性相同的两相邻结构产生的响应有差异；增大阻尼比和相邻结构阻尼比差别、以及设置足够大的初始间隙，可有效降低结构的碰撞响应。
팽당시도치결구지진파배적중요원인지일，기여량팽당결구적동력성능화지진작용밀절상관，응급출여량개결구동력삼수상관적반응보，이지도결구고필팽당적항진설계。본문급출상린결구팽당가속도반응보정의，추도료정세적분법팽당계산공식，진행료해반응보곡면적분석화탐토。결과표명，정세적분법괄용우결구팽당문제적계산，가득도고정도적해，무조건은정차가제고계산효솔。팽당회가대결구적가속도향응；동력특성상동적량상린결구산생적향응유차이；증대조니비화상린결구조니비차별、이급설치족구대적초시간극，가유효강저결구적팽당향응。
Collision is one of the main reasons leading to damage of structures under earthquake excitation,it is closely related to structures'dynamic characteristics and earthquake action.Response spectra for two adjacent impacting structures related to their dynamic parameters should be deduced to guide their aseismic design considering impact.Here, acceleration response spectra for impact between two adjacent structures were defined,the calculation formulas of pounding based on precise time-integration method were derived,and the response spectra were analyzed and discussed. The study results indicated that the precise time-integration method with high accuracy,unconditionally stable and improved efficiency is suitable for the computation of structural impact problems;acceleration responses of structures increase due to pounding,the responses of two adjacent structures with the same dynamic characteristics are different;to increase damping ratios of the two structures and the difference between the two ratios,and to set up enough large initial gap between the two structures can effectively reduce their impact responses.