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首页> 外文会议>Third international conference on composites in infrastructure (ICCI'02) >GFRP REINFORCING OF CONCRETE MASONRY INFILL WALLS
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GFRP REINFORCING OF CONCRETE MASONRY INFILL WALLS

机译：GFRP加固混凝土砌体墙

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Masonry infill walls in frame structures have been long known to affect the strength and stiffnessrnof the infilled frame structures. In seismic areas, ignoring the composite action is not always on the safernside, since the interaction between the wall and the frame under lateral loads dramatically changes therndynamic characteristics of the composite structure and hence its response to seismic loads. It has beenrngenerally recognized that infill walls enhance the response of frame buildings in low to moderaternseismic regions, yet they exhibit poor seismic performance under high seismic demand. This behavior isrndue to the degradation of stiffness, strength and energy dissipation capacity, which results from thernprogressive damage of the masonry wall and the deterioration of the wall-frame interfaces. Due to therndifficulty associated with modeling, attempts of isolating the infill wall from the surrounding frame havernbeen suggested. These attempts faced failure, primarily because of the out-of-plane instabilityrnassociated with these techniques. This paper presents an ongoing study on the reinforcing of concreternmasonry infill walls using GFRP laminates. Preliminary results of the study showed that the GFRPrnenhanced the system behavior under high loads and prevented undesirable failure modes. The GFRPrnreinforcing technique would also facilitate modeling by means of eliminating the anisotropic nature ofrnmasonry walls and clearly defining the failure mode of the reinforced system.
机译：早已知道框架结构中的砖石填充墙会影响填充框架结构的强度和刚度。在地震区域，忽略复合作用并不总是在安全方面，因为在横向荷载作用下墙体与框架之间的相互作用会极大地改变复合结构的热力学特性，从而改变其对地震荷载的响应。通常已经认识到，填充墙增强了中低地震地区框架建筑物的响应，但是在高地震需求下它们表现出较差的地震性能。这种行为归因于刚度，强度和能量消散能力的下降，这是由于砌体墙的逐步破坏和墙框架界面的劣化而导致的。由于与建模有关的困难，因此建议尝试将填充壁与周围框架隔离。这些尝试都面临失败，主要是因为与这些技术相关的面外不稳定性。本文介绍了使用GFRP层压板加固混凝土砌体填充墙的正在进行的研究。研究的初步结果表明，GFRP增强了高负载下的系统性能，并防止了不良的故障模式。通过消除砌体墙的各向异性并明确定义加固系统的破坏模式，GFRPrn加固技术还将有助于建模。

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