钢模块-筒体结构耗能连梁抗震性能研究OA

Currently,steel modules in practical applications face challenges such as insufficient lateral stiffness,relatively weak seismic performance of joints,and limited applicability in high-rise buildings.In contrast,the steel module-core tube structure exhibits excellent lateral force resistance,and the viscoelastic coupling beam damper maintains strong mechanical performance under combined shear force,axial force and bending moment,meeting the design requirements for energy-dissipating coupling beams in steel module-core tube structures.Given these characteristics of the coupling beam,this paper designs an energy-dissipating coupling beam for the steel module-core tube structure,establishes a finite element model,and verifies its reliability.Subsequently,a parametric analysis is conducted on the energy-dissipating coupling beam under cyclic loading,varying five parameters:rubber material,column axial compression ratio,lead core diameter,viscoelastic layer thickness and loading frequency,with a total of 16 models analyzed.By examining the hysteresis curves and skeleton curves from the numerical results,it is concluded that the energy-dissipating coupling beam demonstrates excellent energy dissipation performance under seismic conditions.