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首页> 外文期刊>Bulletin of earthquake engineering >Experimental testing of engineered masonry infill walls for post-earthquake structural damage control
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Experimental testing of engineered masonry infill walls for post-earthquake structural damage control

机译：工程砌体填充墙用于地震后结构破坏控制的试验测试

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The paper presents the results of an experimental campaign on the behaviour of engineered masonry infill walls subjected to both in- and out-of-plane loading. The aim of the research was to develop a design approach for masonry infill walls capable of solving their vulnerability and detrimental interaction with the frame structure when exposed to seismic excitation. Tests on two large-scale specimens and sub-assemblies were performed in order to evaluate the infill deformation capacity, the damage associated with different drift levels, and the mechanical properties of the components. A design solution with sliding joints to reduce the infill-frame interaction and ensure out-of-plane stability, which was proposed in a previous study, was developed and refined with focus on construction details. The aim of sliding joints is to ensure a predetermined mechanism in the infill wall, which is governed by hierarchy of strength and is capable of ensuring ductility and energy dissipation that can be taken into account in the design practice, thanks to the predictability of the response. The two infill wall specimens, one of them including an opening, reached up to 3 % in-plane drift with very little damage and supported an out-of-plane force equivalent to a horizontal acceleration four times the acceleration of gravity. The force-displacement hysteretic curve, sliding at the joints and crack pattern show the efficiency of the construction technique, based on affordable and tradition-like construction processes and materials. The technique, presented here for hollow fired-clay masonry units, can be extended to different masonry infill typologies.
机译：本文介绍了在平面内和平面外荷载作用下工程砌体填充墙性能的实验研究结果。该研究的目的是开发一种砌体填充墙的设计方法，该方法能够解决暴露于地震激励下的脆弱性和与框架结构的有害相互作用。为了评估填充变形能力，与不同漂移水平相关的损伤以及零件的​​机械性能，对两个大型样品和子组件进行了测试。在先前的研究中提出并减少了滑动接头的设计解决方案，以减少填充框架之间的相互作用并确保平面外的稳定性，并着重于施工细节。滑动接头的目的是确保填充墙中有预定的机制，该机制受强度等级支配，并且由于响应的可预测性，因此能够确保在设计实践中考虑到延展性和能量耗散。两个填充墙样本（其中一个包含开口）在不引起很小损坏的情况下达到了3％的面内漂移，并承受了相当于水平加速度四倍重力加速度的面外力。力-位移滞后曲线，在接缝处滑动和裂缝模式表明了这种施工技术的有效性，该工艺基于可负担且传统的施工工艺和材料。此处介绍的用于空心烧制粘土砌体单元的技术可以扩展到不同的砌体填充类型。

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