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首页> 外文期刊>Earthquake Engineering & Structural Dynamics >Super elastic system using parallel spine frames with steel braces
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Super elastic system using parallel spine frames with steel braces

机译：超级弹性系统，使用钢支架的平行脊柱框架

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摘要

To reduce the seismic response and residual deformation of structures, this study proposes a super elastic bracing system comprising parallel spine frames with steel rods acting as the braces connecting adjacent spine frames. The brace-end connections are located on the outer side of the pin supports of spine frames to ensure that the axial deformation of the braces is lower than that of a regular bracing system with identical brace angles. To verify the feasibility and elastic range of the proposed system, cyclic loading tests were conducted using scaled specimens consisting of two spine frames with four different brace configurations. Numerical models created in OpenSees were used to simulate the loading tests appropriately. Four evaluation methods were developed for predicting the force and deformation relation considering the geometrical nonlinearity of the proposed system. Through parametric analyses, the influence of key parameters on structural behaviors is clarified, and the applicability of the evaluation methods is investigated.
机译：为了减少结构的地震反应和残余变形，本研究提出了一种超级弹性支撑系统，包括与钢杆作用作为连接相邻脊柱框架的括号的平行脊柱框架。支撑末端连接位于脊框架的销支撑件的外侧，以确保支架的轴向变形低于具有相同支架角度的常规支撑系统的轴向变形。为了验证所提出的系统的可行性和弹性范围，使用由两个不同支架配置的两个脊柱框架组成的缩放样本进行循环加载测试。在OpenESE中创建的数值模型用于适当地模拟装载测试。开发了四种评估方法，用于预测考虑到所提出的系统的几何非线性的力和变形关系。通过参数分析，阐明了关键参数对结构行为的影响，研究了评价方法的适用性。

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