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张宽权 《四川建筑科学研究》1998,(1):9-11
本文介绍某工程砖砌体因砂浆强度严重不足,进行砖砌体承载能力鉴定和加固处理的典型工程实例。通过该实例,笔者对已建工程砖砌体砖材强度抽样检测方法(按国际《烧结普通砖》(GB5101-93)进行评定)适用范围进行了探讨。 相似文献
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采用隔震技术加固砖砌体结构可以明显提高其抗震能力.隔震技术加固砖砌体施工工艺简单,不影响上部结构使用,不破坏外部装修,投资合理,工期短,在结构加固领域具有良好的发展前景.本文结合北京某高校教学楼加固工程实例,介绍了隔震支座设计方案,确定了科学的施工程序,总结了完整的施工关键技术,对同类工程加固有指导意义. 相似文献
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砖墙底部采用碳纤维锚固进行拟静力试验研究,通过对试验数据分析,研究了碳纤维锚固对该类墙体抗震性能的影响,并对墙体受力进行了计算分析,研究表明碳纤维锚固砖墙底部可以改善其抗震性能。 相似文献
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针对砌体结构在地震中的倒塌现象,分析了砖墙的破坏形式,总结了目前国内常用的砖墙加固方法,提出了基于性能的抗震加固理论的发展是提高砌体结构抗震性能的一种趋势。 相似文献
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Barış Erdil Fırat Kıpçak Mücip Tapan 《The Structural Design of Tall and Special Buildings》2024,33(5):e2089
As a result of the combination of the complex behavior of masonry buildings with insufficient material quality and lack in engineering calculations, a large number of damages has been observed in the earthquakes that occurred in recent years. Therefore, a realistic understanding of the behavior of masonry walls and buildings is necessary to construct seismic-resistant structures. Since masonry walls have many variables, performing experiments in which each variable is present at the same time will make it difficult to understand the behavior. For these reasons, considering the out-of-plane failures that are frequently mentioned in recent earthquakes, in this study, variables in dry-stack brick masonry buildings such as the aspect ratio of the wall (2, 1.33, and 1), the presence of the transverse walls (2, 1, and 0), and the openings in the walls (door and/or window) were taken into account separately. Eighteen different wall configurations were designed, and a total of 48 dry-stack walls having U-shape, L-shape, and I-shape in plan were tested by a specially constructed tilting table setup to determine their out-of-plane behavior. From the test results, it was found that lateral load capacity of the U-shaped walls without openings increased as the aspect ratio (L/H) decreased. No change in capacity was observed in L- and I-shaped walls when the aspect ratio was reduced from 2 to 1. Door and/or window openings were found to affect only the L-shaped walls. In addition, it was determined that failure patterns were affected from the aspect ratio and the presence of the openings. 相似文献
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对"穿墙型"支架、膨胀螺栓固定支架、扁钢支架、塑料胀栓支架四种空心砖墙上管道、设备支架的安装方法作了介绍,简述了各种支架制作及安装的注意事项,分析了各种支架的优缺点,为同类工程中支架类型的选择提供了条件。 相似文献
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结合工程实例,探讨了加筋土挡土墙的施工技术,介绍了加筋土挡土墙施工所需的材料,并总结了其施工技术的质量控制措施,进而对面板安装、筋带铺设、填料铺摊等施工工艺作了阐述,为同类工程施工积累了经验。 相似文献
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关于砖混结构墙体裂缝问题的探讨 总被引:1,自引:0,他引:1
针对砖混结构墙体裂缝的危害,分析了砖混结构墙体裂缝产生的原因,提出了具体的防治措施,指出只要设计合理、确保施工质量,选用材料得当、建筑物的裂缝是可以从根本上得到控制的。 相似文献
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通过大量的震害调查和试验研究得出,砖砌体结构中墙体不宜错位,宜拉通对齐,在此基础上,运用底部剪力法,对一例砖砌体结构中墙体错位与所分配的水平地震作用的大小进行了分析,从结果看出,在砖砌体结构抗震设计中,不但要进行抗震计算,而且更要重视概念设计。 相似文献