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浅析砌体结构常见裂缝的原因及防治措施 总被引:1,自引:3,他引:1
结合工程实例,介绍了砌体结构常见的裂缝,阐述了砌体结构裂缝产生的原因,并对砌体结构裂缝的原因进行了详细的分析,提出了防治砌体结构裂缝的具体措施。 相似文献
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谈砌体结构裂缝的成因与控制方法 总被引:1,自引:0,他引:1
分析了砌体结构裂缝的原因和类型,提出了设计过程中砌体裂缝的主动控制措施及砌体裂缝的加固处理方法,以控制砌体结构裂缝的产生和扩展,确保砌体结构的工程质量。 相似文献
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砌体结构开裂原因分析与预防措施 总被引:1,自引:1,他引:0
分析总结了砌体结构的优缺点、砌体裂缝的性质和裂缝控制原则,分析了砌体结构产生裂缝的原因,结合我国当前国情,针对性地提出了砌体结构裂缝控制的具体构造措施和建议,以保证砌体工程质量。 相似文献
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通过对砌体结构房屋墙体裂缝的调查 ,分析砌体结构房屋墙体产生裂缝的原因 ,提出砌体结构墙体裂缝控制措施 ,以防止砌体结构房屋墙体产生裂缝。 相似文献
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结合砖混结构房屋的应用,对砌体结构的裂缝进行了分类,对裂缝的产生原因进行了分析;并针对性地阐述了砌体裂缝的处理措施,同时就砌体裂缝的预防进行了探讨,以解决砌体结构的裂缝问题,提高建筑物的质量。 相似文献
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分析了砌体结构裂缝的产生原因,对沉降裂缝、温度裂缝、收缩裂缝的产生机理进行了分析,讨论了影响砌体结构开裂的因素,针对这些影响因素提出防治措施,以解决砌体结构的裂缝问题,保证建筑物的使用寿命。 相似文献
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对砌体结构类型的分析与抗震设计建议 总被引:3,自引:0,他引:3
基于构造柱-圈梁这一特殊形式的约束砌体结构的特点和其在抗震中的显著作用,以及不同配筋砌体构件对配筋率的要求,较好地定义了无筋、配筋及约束砌体构件,并对约束配筋砌体构件在抗震设计中的定位和界定提出了建议,可供修订《建筑抗震设计规范》和《砌体结构设计规范》参考。 相似文献
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砌体结构具有辉煌的历史,随着建筑业的发展,砌体结构的处境十分艰难。文章分析了国家的“禁实限黏”政策的影响、传统砌体块材外观质量的局限、未经正常设计的砌体建筑抗震性能缺陷以及城市建筑向高层发展挤压了砌体结构的生存空间,厘清了砌体结构发展存在的问题。在国家“双碳”目标下,砌体结构建筑的可持续性能够很好地适应城镇绿色低碳建设及新农村低层建筑的建设需求,是砌体结构建筑发展的良好机遇;从高性能砌体材料、固体废弃物资源化、砌体结构适用范围与标准、抗震性能、村镇低层砌体建筑简化建造、复合墙体和配筋砌体、装配式建筑与智能建造等方面入手,分析了砌体结构的现状及所面临的机遇,提出了砌体结构的发展方向及其相应的技术措施。 相似文献
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提出了在砖混结构中设置一定数量的钢筋墙力墙的方法。以实例阐述了抗震验算和构造设计,指出这种做法造价虽比砖墙高4倍左右,但它满足了房屋开口大时的结构抗震设计要求。 相似文献
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Simon Glowienka 《Bautechnik》2009,86(3):150-156
Reliability of masonry consisting of large sized units. Within the scope of the harmonisation of the European design codes the partial safety concept has been recommended also for masonry structures. This requires the values of the partial safety factors to be discussed. Whereas for steel and concrete structures a large amount of studies have been conducted, this is not the case for masonry structures. This explains the large scatter of the partial safety factors suggested for the resistance side for the design unreinforced masonry in international codes. In this paper, the reliability of unreinforced masonry walls under compression made of large sized units will be analysed. A suggestion for optimized partial safety factors will be given. 相似文献
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Sezer Atamturktur Jeffrey A. Laman 《The Structural Design of Tall and Special Buildings》2012,21(2):96-113
Building a reliable finite element (FE) model of historic masonry structures is a difficult undertaking due to the challenges in accurate representation of irregular geometry, complex material behaviour and complicated boundary conditions between structural masonry components. Model calibration refers to correcting the inherent deficiencies within the FE model by matching outputs to measured data. Model calibration has the potential to produce more reliable computer models and thus aid in the economical management and maintenance of contemporary as well as heritage structures. Researchers involved in the assessment of historic masonry monuments have devoted decades of consistent attention to FE model calibration. This paper reviews the recent developments in this topic with a focus on complex vaulted masonry monuments. Studies on simpler forms of masonry structures, such as masonry arch bridges or masonry towers, are also discussed since they lay the groundwork for studies on more complex structures. This paper identifies several remaining technical challenges as model calibration approaches gain wider recognition and usage in historic monument structural assessment. Copyright © 2010 John Wiley & Sons, Ltd. 相似文献
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为评估不同年代多层砖房的抗震性能,根据构造柱设置情况将多层砌体结构分为5个抗震措施类别,以静力非线性方法为基础,并利用层间位移角作为衡量不同破坏状态的量化指标,提出基于性能的多层砌体结构地震易损性分析方法。为考虑地震动的随机性和结构的随机性,采用蒙特卡洛法生成200万个结构-地震动随机样本并对其进行分析,建立多层砌体结构的地震易损性曲线,研究结构层数、抗震措施、材料强度、抗震墙面积率等因素对多层砌体结构地震易损性的影响。结果表明,结构层数对多层砌体结构地震易损性的影响最大,材料强度、抗震措施和抗震墙面积率对多层砌体结构地震易损性也有较大影响。基于易损性分析结果所建立的某多层砌体结构的地震易损性矩阵,可为基于性能的抗震评估提供参考。 相似文献
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The assessment of the dynamic or seismic performance of complex structures often requires the integration in the time domain of the structural equation of motion in the frame of a nonlinear analysis. Although sophisticated methods have been developed for the nonlinear analysis of masonry wall structures, including the macro- and micro-modeling approaches, these require large computational effort still limiting the extent and complexity of the structures analyzed. This paper presents an alternative method based on the Generalized Matrix Formulation for masonry skeletal structures and load bearing wall systems, which has been proved as an efficient formulation for the analysis of the strength capacity of these kinds of structures (Roca et al. (2005) [17]). The basic formulation has been complemented with a uniaxial cyclic constitutive model for masonry and a time integration scheme. The ability of the resulting approach to predict the nonlinear dynamic response of masonry structures is shown through its application to the time domain analysis of an experimental scale masonry building with available experimental results on its dynamic response. 相似文献
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介绍了新型砌体材料在我国目前的应用状况,对我国新技术、新结构在砌体结构中的应用情况及目前砌体结构理论研究水平进行了阐述,并对推广新型砌体结构及砌体材料的应用提出了一些建议。 相似文献