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为寻求更好的框架抗震设计方法进行了深入研究和试验。美国北岭和日本阪神灾难性地震发生后,引入了梁端削弱(RBS)刚性连接,揭示出在钢框架连接响应方面的欠缺。如今,这类连接是用于框架抗震最经济、最有效的方法。美国规范和试验对RBS连接的延性和可靠性进行了广泛研究,但基于欧洲规范的研究很少。欧洲规范8第3部分给出了钢框架中RBS连接的设计建议,但由于现有数据有限,这些建议的可靠性尚待验证。对由HEA型材(在欧洲广泛用于梁构件)制成的RBS刚性连接,进行循环荷载试验,并给出试验结果。对两个延伸端板梁-柱螺栓连接(欧洲常用作刚性连接)试件进行了足尺试验,并将试验结果与有限元分析结果进行对比。
In order to seek a better frame seismic design method conducted in-depth study and test. After the Northridge in the United States and the Hanshin catastrophic earthquake in Japan, RBS rigid connections were introduced, revealing a lack of response to steel frame connections. Nowadays, this kind of connection is the most economical and effective method for frame seismic. Extensive research has been conducted on the ductility and reliability of RBS connections in the United States norms and tests, but few studies have been based on European norms. Part 3 of the Eurocode 8 gives design recommendations for RBS connections in steel frames, but due to the limited data available, the reliability of these recommendations has yet to be validated. RBS rigid connections made from HEA profiles (widely used in Europe for beam members) are subjected to cyclic loading tests and test results are given. Full-scale tests were performed on two specimens of extended end plate beam-column bolts (commonly used as rigid connections in Europe), and the test results were compared with the results of the finite element analysis.