减震与隔震网架结构地震响应分析

减震、隔震技术属于结构振动控制中的被动控制,这种技术相比其他具有成本低、便捷性、显著性等特点受到了众多建设者的青睐。针对网架结构特点,在网架结构中应用减震、隔震技术,以此来降低外部荷载对结构的损害是很有必要的。本文研究的网架结构位于青岛市,在新版地震区域划分中青岛地区的抗震设防烈度由6度区提升为7度区,因此对该地区结构进行抗震加固迫在眉睫。对其采用减震、隔震技术后,结构地震响应进行对比结果表明:减震和隔震技术可以有效的减小网架结构的地震响应,网架的抗震性能提升,能够满足7度设防区的抗震要求。

SEISMIC ENERGY DISSIPATION AND SEISMIC ISOLATION TECHNOLOGY IN ITS APPLICATION OF A SPACE TRUSS STRUCTURE OF QINGDAO

Seismic energy dissipation method belongs to passive control of structural vibration control technology,which is widely used because of its advantages in the engineering construction with obvious seismic effect.According to the characteristics of space truss structure damping,it is very necessary to apply energy dissipation and isolation technology to gird structure,grid shell structure,reducing the destruction of these structures in the earthquake.The space truss structure is located in Qingdao,because the seismic fortification intensity of Qingdao area are promoted from original 6 to 7 degrees,optimization and upgrading must be carried on original structure,enabling it meet the seismic requirements in 7 degrees by the use of energy dissipation technology.Results was compared between before and after the application of energy dissipation damper,it shows that:the energy dissipation and isolation technology can effectively reduce the earthquake response of space truss structure,a seismic performance is promoted,which satisfies the seismic require-ments in 7 degrees fortification district.