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Demands on nonstructural components in buildings with controlled rocking braced frames

机译：控制摇动支撑框架建筑物中非结构部件的要求

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Controlled Rocking Braced Frames (CRBFs) have been developed as a high-performance seismic force resisting system that can self-center after an earthquake and avoid structural damage. A CRBF is designed to uplift and rock on its foundation, and this response is controlled using prestressing and energy dissipation devices that are engaged by uplift. Although CRBFs have been shown to have desirable structural performance, a comprehensive assessment of this system must also consider the performance of nonstructural components, which have a significant impact on the safety and economic viability of the system. The purpose of this paper is to evaluate the demands on nonstructural components in buildings with CRBFs in comparison to demands in a reference codified system, taken here as a buckling restrained braced frame (BRBF), as well as to identify which design parameters influence these demands. The responses of various types of nonstructural components, including anchored components, stocky unanchored components that slide, and slender unanchored components that rock, are determined using a cascading analysis approach, where absolute floor accelerations generated from nonlinear response history analyses of each system are used as input for computing the responses of nonstructural components. The results show that the downside of maintaining elastic behavior of the CRBF members is, in general, larger demands on nonstructural components compared to the BRBF system. These demands are not highly influenced by impact during rocking or by the supplemental energy dissipation provided, as the vibration of the CRBF in its higher modes is primarily responsible for the higher demands.
机译：受控摇动支撑框架（CRBFS）已被开发为高性能地震力抵抗系统，可以在地震发生后自我中心，避免结构损坏。 CRBF旨在将其基础抬起和岩石，并使用由隆起从事的预应力和能量耗散装置来控制这种响应。虽然CRBFS已被证明具有所需的结构性性能，但对该系统的全面评估还必须考虑非结构组分的性能，这对系统的安全和经济可行性产生了重大影响。本文的目的是评估具有CRBF的建筑物中的非结构组件的要求与参考编码系统的要求相比，在此作为屈曲束缚的支撑框架（BRBF），以及确定哪些设计参数影响这些需求。各种类型的非结构组分的响应，包括锚定部件，岩石和细长的未定向组分的锚固组分使用级联分析方法确定，其中从每个系统的非线性响应历史分析中产生的绝对地板加速度被用作计算非结构组件响应的输入。结果表明，与BRBF系统相比，维持CRBF成员的弹性行为的缺点是对非结构组分的要求较大。这些需求在摇摆期间或通过提供的补充能量耗散在其较高模式下的振动主要负责更高的需求中，这些需求不会受到高度影响。

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