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针对采用隐形梁柱改造的老旧砌体建筑,选取3种结构形式的模型:无圈梁构造柱的砌体结构模型、有圈梁构造柱的砌体模型和隐形梁柱的砌体结构模型.对各组模型进行模态分析和地震时程反应分析,并对自振周期、结构损伤、最大水平位移、层间位移角,地震作用下加速度值进行对比.在地震作用下,无圈梁结构加速度值最大,隐形梁柱结构次之,圈梁结构的加速度值最小.加速度越小,地震对结构的破坏程度越低.研究结果表明:隐形梁柱法提高了结构的整体性与耗能能力,从而提高了抗震能力.
For the old masonry building with steep beam and pillar retrofit, three kinds of structural models are selected: the masonry structure model of the ringless beam structure column, the masonry model with the ring beam structure column and the masonry structure model of the stealth beam and column The modal analysis and seismic time history analysis of each model are carried out, and the comparison is made between the natural period, structural damage, maximum horizontal displacement, interlayer displacement angle and acceleration under earthquake action. The value of acceleration of structure is the largest, followed by invisible beam-column structure, and the acceleration of ring-beam structure is the smallest.The less the acceleration is, the lower the damage of the structure to the structure.The results show that the invisible beam-column method improves the structural integrity and energy- Thus improving the seismic capacity.