CAJ | 학술논문

为实现用于连续梁桥的摩擦摆支座隔震性能的最优化，以位于高烈度区的（48＋66＋48） m三跨预应力混凝土连续箱梁桥———西安太白大桥为背景进行研究。应用非线性动力时程分析方法计算该桥在不同摩擦摆支座参数组合下的隔震效果，研究支座参数对隔震效果的影响；在此基础上，基于模糊逻辑控制理论，引入摩擦摆支座综合隔震性能指标，对支座参数进行优化分析。结果表明，摩擦摆支座弯矩隔震效果明显，位移隔震效果分歧较大；通过模糊逻辑控制方法，可实现弯矩、位移隔震效果的平衡；为实现摩擦摆支座隔震性能最优化，摩擦系数需控制在0．06～0．10。
위실현용우련속량교적마찰파지좌격진성능적최우화，이위우고열도구적（48＋66＋48） m삼과예응력혼응토련속상량교———서안태백대교위배경진행연구。응용비선성동력시정분석방법계산해교재불동마찰파지좌삼수조합하적격진효과，연구지좌삼수대격진효과적영향；재차기출상，기우모호라집공제이론，인입마찰파지좌종합격진성능지표，대지좌삼수진행우화분석。결과표명，마찰파지좌만구격진효과명현，위이격진효과분기교대；통과모호라집공제방법，가실현만구、위이격진효과적평형；위실현마찰파지좌격진성능최우화，마찰계수수공제재0．06～0．10。
To optimize the seismic isolation performance of the frictional pendulum bearings (FPBs) used for continuous girder bridge ,the Taibai Bridge in Xi′an ,a three‐span prestressed concrete continuous box girder bridge with span arrangement (48+66+48) m located in the high‐intensity seismic zone was cited as an example and was studied .The nonlinear dynamic time‐his‐tory analysis method was used to calculate the seismic isolation effect of the FPBs of different pa‐rameter combinations and the influences of the FPB parameters on the seismic isolation effect w ere studied .Further to the calculation and study ,the compositive seismic isolation performance indices of the FPBs were introduced and the optimal analysis of the FPB parameters was conduc‐ted based on the fuzzy logic control theory .The results of the study and analysis suggest that the seismic isolation effect of the FPBs on the bending moment is notable ,but on the displacement between the girder and piers is ambiguous .With the fuzzy logic control theory ,the balance of the seismic isolation effect on the bending moment and displacement can be achieved .To achieve the optimization of the seismic isolation performance of the FPBs , the fictional coefficients of the FPBs should be controlled within 0 .06~0 .10 .