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介绍了新型预压弹簧自恢复耗能(PS-SCED)支撑在低周反复荷载作用下的滞回特性,并对采用新型PSSCED支撑与普通支撑的单层单榀框架结构的抗震性能进行了对比分析.结果表明,PS-SCED支撑框架结构在动力荷载作用下可展现出稳定的旗形滞回曲线,具备良好的耗能能力及自恢复性能.与普通支撑框架结构相比,PSSCED支撑框架结构承载能力至少提高44%,,累积滞回耗能能力提高20%,,残余变形角减小64%,,故PS-SCED支撑可有效提高结构的整体抗震性能.
The hysteretic behavior of PS-SCED under low cyclic loading is introduced and the seismic performance of single-ply single-frame structure with new PSSCED support and normal support is compared The results show that the PS-SCED support frame structure can exhibit a stable flag-shaped hysteresis curve under dynamic load with good energy dissipation and self-recovery performance.Compared with the common support frame structure, PSSCED support frame structure The bearing capacity is increased by at least 44%, the cumulative hysteresis energy consumption is increased by 20% and the residual deformation angle is reduced by 64%. Therefore, the PS-SCED support can effectively improve the overall seismic performance of the structure.