共查询到19条相似文献,搜索用时 421 毫秒
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通过工程实践及实例调研 ,分析造成斜屋面渗漏的原因 ,从建筑设计、施工管理、材料使用等方面阐述波瓦斜屋面防水技术。 相似文献
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本文通过对钢筋混凝土斜屋面支模架体的验算以及混凝土浇筑方案的介绍,简述了某住宅楼钢筋混凝土斜屋面工程得以安全施工,并取得了经一年使用无渗漏效果的概况。 相似文献
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随着房地产业的发展,高级住宅和别墅大量兴建。为了追求建筑风格,许多住宅、别墅屋面设计成现浇钢筋砼板铺贴波型瓦的斜屋面。一些斜屋面在竣工时或使用一二年后,在屋面变坡交接处、老虎窗与屋面联接处、墙身泛水等部位,出现渗漏,影响了建筑的使用和美观。笔者通过分析,总结以往工程实践,提供一些砼斜屋面防渗措施,供参考。 1 原因分析 现浇钢筋砼贴瓦斜屋面的渗漏事故,主要是由波瓦铺贴不实、砼板出现裂缝及防水构造处理不当而引起的。其主要原因可由设计和施工等方面来分析。 1.1 设计原因 1.1.1 计算假定和结构实际的差异。例如斜 相似文献
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北京京剧院业务楼斜屋面琉璃瓦施工戴连旺(北京第五建筑工程公司,100026)北京京剧院业务楼第10层出挑部分斜屋面原设计为铺面砖,为突出建筑物的民族特征,改铺琉璃瓦。共6个挑台斜面,总面积约315m2。本工程使用的琉璃瓦是一种琉璃平瓦,瓦坯表面曲线与... 相似文献
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通过GBF薄壁空心管运用于钢筋混凝土斜屋面上的具体实例,从斜屋面到空心管所遇到的各种细节问题,包括坡度放样、斜屋面防滑、GBF空心管使用、空心管抗浮处理,混凝土浇筑、专业配合等一系列细节问题,从这些方面入手加以控制解决,以确保结构安全、使用功能及提前预控的目的。 相似文献
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简要分析了斜屋面积水、渗漏等质量问题的主要原因,提出了解决斜屋面积水渗漏的预防措施和建议,从而达到较好的防渗效果,同时为今后斜屋面的相似问题提供借鉴。 相似文献
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宁波东钱湖旅游度假区钱湖人家二期安置小区为4~5层砖混结构住宅小区,要求屋面设计为欧式全坡瓦屋面,阁楼层按坡屋面投影面积约有40%净高超过2.2m(最低处净高为0.4m),可使用.斜屋面结构层为现浇钢筋混凝土板,坡度为30°~33°. 相似文献
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结合具体工程实践,对斜屋面西式瓦屋面施工技术进行了总结,介绍了该技术施工特点和技术原理,着重阐述了施工工艺流程、操作要点及质量控制措施,并对其应用效果作了具体说明,对今后同类屋面工程具有指导作用。 相似文献
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广州华南理工大学文体活动中心采用钢筋混凝土屋盖结构,跨度达54m,由16组向心的斜拉索悬吊在16根突出屋面的柱上。施工中对有关技术问题进行了研讨并提出了解决措施。 相似文献
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通过工程实践,分析钢筋混凝土挂瓦斜屋面渗漏原因,从建筑设计、施工管理等方面提出预防措施,总结经验,做好屋面防水工作。 相似文献
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B. Liu Z.Q. Yue L.G. Tham 《International Journal of Rock Mechanics and Mining Sciences》2005,42(2):438
This paper presents an analytical design method for the truss-bolt system in reinforcing underground fractured rock roofs in coal mines. The analytical design method is based on the mechanical analysis of the fractured rock roof with reinforcement by inclined roof bolts and a horizontal tie-rod. The mechanical analysis for the system includes a non-linear bending model for the laterally inclined roof bolts and three upper and lower bounds. The lateral resistance of the inclined roof bolts in a truss-bolt-supported roadway is examined using classical theory of a non-linear beam in bending. The paper analyses the arching action by lateral behavior of the inclined roof bolts in reinforcing the fractured roof. Based on mechanical models, the design formula concerning the lateral bolt forces, tensions in the tie-rod in the truss system, as well as the reinforcement behavior have been derived. In order to ensure that the roof truss-bolt system reinforces the coal roof effectively, a lower bound of pre-tightening forces must be applied on the tie-rod for stabilizing the fractured roof by arching action. The pre-tightening forces exerted via the tie-rod also cannot be greater than its upper bound, since the excessive tightening force will cause localized failure in the rock near the bolt tail at the abutment of the fractured roof beam. The analytical formulas for both lower and upper bounds for truss pre-tightening forces are put forward in this paper. Furthermore, the paper also presents analytical equations for designing the axial forces and dimensions for bolts in this kind of system. Parametric studies and optimization analysis are also carried out on the basis of the proposed approach. A flow chart and procedures are presented to show the analytical design method for this truss-bolt system. Case studies are presented to show how the method can be used in actual coal mining tunnels. The predicted results compare well with those measured in the actual case studies. 相似文献
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In this paper, the equation of the middle surface of a simply-supported cross V-shaped folded plate roof is established by means of the inclined coordinate system and generalized functions—sign function and step function. Then, the non-linear analysis for this simply-supported roof subjected to uniform load and point load is given by using the non-linear theory of shallow shell and the non-linear Galerkin's method. Finally, an illustrative example of this roof is presented. This example indicates that the largest stress of this roof is much less then that of the four pitch roof of same dimensions. Therefore, a lot of construction material could be saved by using this proposed roof. 相似文献
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斜屋面是一种传统的屋面造型。近些年采用的斜屋面形式多为现浇钢筋混凝土斜屋面。有针对性地阐述了大面积大坡度斜屋面结构的施工技术,内容包括对脚手架进行深化设计;对钢筋密集问题采取多途径协调解决;采用预留水平浇筑槽、分段封模的双面模板体系;研究实施提高混凝土施工性能的技术措施及组织措施。 相似文献
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