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对中外抗震设计规范中有关防落梁控制措施的规定进行阐述,并从梁端最小支承宽度、限位装置设计荷载及相关构造措施3个方面对各国规范进行对比分析,总结各国规范对于防落梁措施规定的优缺点,提出对我国规范中防落梁措施规定有益的建议。结果表明:美国、日本等国家防落梁系统研究较为成熟,目前大都采用静力或拟静力方法,易于工程设计实现,但忽略了结构自身振动特性影响;我国规范对于防落梁规定多为构造要求,需要进一步完善,满足实际工程要求。
This paper elaborates the relevant provisions of anti-shedding control measures in Chinese and foreign anti-seismic design codes and compares and analyzes the national codes from three aspects: the minimum support width of beam end, the design load of limit device and related construction measures, Liang measures the merits and demerits, put forward some suggestions on the regulation of China’s Fangluoliao measures. The results show that the research on the anti-falling beam system in the United States, Japan and other countries is relatively mature. At present, most of them are in static or quasi-static methods, which are easy to be realized by engineering design but ignore the vibration characteristics of the structure themselves. Construction requirements, need to be further improved to meet the actual project requirements.