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首页> 外文期刊>Bulletin of earthquake engineering >Seismic fragility functions for code compliant and non-compliant RC SMRF structures in Pakistan
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Seismic fragility functions for code compliant and non-compliant RC SMRF structures in Pakistan

机译：巴基斯坦的代码兼容和不合规无符合RC SMRF结构的地震脆弱功能

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摘要

Fragility functions are derived for low-rise code compliant & non-compliant special moment resisting frames (SMRFs). Non-compliant SMRFs those built in low strength concrete and lacking confining ties in joint panel zones, commonly found in developing countries. Shake table tests were performed on single-storey and two-storey 1:3 reduced scale representative frames to understand the damage mechanism and develop deformation-based damage scale. The non-compliant SMRF experienced column flexure cracking, longitudinal bar-slip in beam and observed with cover concrete spalling from the joint panels. The code compliant SMRF experienced flexure cracks in beam/column, and experienced joint cracking under extreme shaking. Numerical modeling technique is developed for inelastic modeling of reinforced concrete frame with beam bar-slip and joint damageability using SeismoStruct. Natural accelerograms were used to analyze the considered frames through incremental dynamic analyses in SeismoStruct. A probabilistic based approach was used to derive fragility functions for the considered frames. An example case study is presented for damageability evaluation of structures for earthquakes of various return periods (43, 72, 475, 2475 years).
机译：导出脆弱功能，用于符合低上升代码和不合规的特殊时刻抵制帧（SMRF）。不合规的SMRFS那些内置的低强度混凝土，缺乏联合面板区域的限制，常见于发展中国家。摇动台测试是在单层和两层1：3减小的规模代表框架上进行的，以了解损坏机制并发展基于变形的损伤量表。不合规的SMRF经历了柱弯曲裂缝，纵梁中的纵向杆滑动，并观察到从接合面板剥落的覆盖混凝土剥落。符合代码的SMRF在梁/柱中经历了弯曲裂缝，并且在极端摇动下经历了关节开裂。利用地震杆菌钢筋滑动和联合石磁型钢筋混凝土框架无弹性建模技术开发了数值建模技术。自然加速器局用于通过地震分析中的增量动态分析来分析所考虑的框架。基于概率的方法用于导出所考虑的帧的脆弱功能。提出了一个例子案例研究，用于各种返回时期地震地震结构（43,72,475,2475岁）的结构的降落性评估。

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