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提出一种用于高层建筑的含摩擦阻尼器钢连梁。摩擦阻尼器以外的型钢梁段即使在罕遇地震作用下也预期保持弹性,损伤只发生在摩擦片-钢板界面。采用高强螺栓与碟形弹簧串联为摩擦片-钢板摩擦界面施加正压力,以减小温度应力等因素对摩擦力的影响。地震过后,简单放松螺栓就可以释放结构残余变形,并可拆卸摩擦片以查看其损伤程度,如有必要可方便地更换摩擦片。对该钢连梁进行往复加载试验。结果表明,选用的摩擦材料具有可靠的摩擦性能,摩擦阻尼器表现出稳定且优异的耗能能力。摩擦力相对比较稳定,未出现过大的超强,有利于简化周边连接构件的设计。
A steel beam with friction damper for high-rise buildings is proposed. Beam sections other than friction dampers are expected to remain elastic even under rare earthquakes, with damage occurring only at the friction plate-plate interface. The use of high-strength bolts and disc springs in series for the friction plate - steel friction interface to apply positive pressure to reduce the temperature stress and other factors on the friction force. After the earthquake, a simple loosening of the bolt releases the residual deformation of the structure and the friction lining can be disassembled to see its degree of damage, and the lining can be easily replaced if necessary. The steel beam beam reciprocating load test. The results show that the selected friction material has reliable friction performance and the friction damper shows stable and excellent energy dissipation capacity. Friction is relatively stable, did not appear too large super-strength, help to simplify the design of the surrounding connection components.