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Simplified Dynamic Model for Post-tensioned Cross-laminated Timber Rocking Walls

机译：用于后张紧交叉层压木材摇动墙的简化动态模型

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摘要

This paper presents a computationally efficient numerical model for predicting seismic responses of post-tensioned cross-laminated timber (CLT) rocking wall systems. The rocking wall is modeled as a simple linear beam element with a nonlinear rotational spring at the base. The model is primarily intended for preliminary design and assessment of multistory buildings using this particular lateral system. A method was developed to determine the nonlinear rotational spring parameters by considering the dimension of the CLT wall panel and post-tensioned steel rods and energy dissipating devices' contributions. The proposed model was validated by comparing the simulated results with the responses from a series of shake table tests of a full-scale two-story building with CLT rocking walls. The numerical results show reasonable agreement with the shake table test results considering the simplicity of the model.
机译：本文介绍了一种计算高效的数值模型，用于预测后张紧的交叉层压木材（CLT）摇摆壁系统的地震反应。摇摆壁被建模为具有在底座上的非线性旋转弹簧的简单线性梁元件。该模型主要用于使用这种特殊的横向系统进行多层建筑物的初步设计和评估。开发了一种方法，以通过考虑CLT壁板和后张紧的钢棒和能量消耗装置的贡献来确定非线性旋转弹簧参数。通过将模拟结果与来自带有CLT摇摆墙的全规模两层建筑物的一系列摇动台测试的响应进行比较，通过将模拟结果进行了验证。数值结果表明，考虑到模型的简单性，与摇动表测试结果显示合理的协议。

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