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钢筋桁架模板是用钢筋加工成钢筋桁架,并将钢筋桁架与镀锌压型钢板焊接成一体的组合模板。该模板系统是将钢筋与施工模板组合为一体,底部无需支撑,直接在钢梁上进行安装,可以承受混凝土自重及施工荷载。本文结合工程实例,介绍了钢筋桁架模板体系在工程的运用和质量控制。 相似文献
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针对广州珠江新城核心区市政交通项目首层大跨度钢管空心混凝土楼盖体系,分析了体系的组成结构,介绍了施工方法,包括:钢梁、钢柱安装检查,1号空心钢管下T形托板的安装,1号空心钢管的安装,钢筋桁架模板的安装,最后一块钢筋桁架模板的安装,2号空心钢管安装,下挂式钢筋桁架模板内200mm厚混凝土的浇筑,钢管空心楼板上层钢筋绑扎,钢管空心楼板混凝土浇筑.针对下挂式钢筋桁架模板施工工艺,总结了施工技术要点,包括:质量控制标准,钢筋桁架模板宽度、长度允许偏差,钢筋桁架模板安装完成后桁架构造尺寸允许偏差,以及钢筋桁架模板安装质量要求. 相似文献
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余姚塑料城商务中心办公楼区工程应用自承式钢筋桁架模板,分析了钢筋桁架的构造,承载力验算方法,介绍了钢筋桁架模板的施工工艺及施工方法,综合分析了钢筋桁架模板的优点以及所取得的综合效益。 相似文献
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世博会中国馆采用了自承式钢筋桁架模板施工技术。由于钢筋桁架模板具有安装快速便捷,所形成的楼板整体性好,施工质量更容易得到保证的特点,从而实现了预计的工期目标,综合经济效果明显。 相似文献
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一、背景技术
钢筋桁架楼承板是将楼板中的钢筋在工厂加工成钢筋桁架,并将钢筋桁架与镀锌压型钢板焊接成一体的组合模板.
在施工阶段,钢筋桁架楼承板可承受施工荷载,直接铺设到梁上,进行简单的钢筋工程便可浇筑混凝土.由于完全替代了模板,减少了模板架设和拆卸工程,大大提高了楼板施工效率.目前被广泛应用于多层厂房及多层、高层、超高层钢结构楼宇,各种不规则楼面,混凝土结构,高速铁路等结构和建筑领域.
钢筋桁架楼承板在施工安装过程中,任意相邻的两个钢筋桁架楼承板需要通过第一卡口与第二卡口相互扣接(也即母肋与公肋相互扣接)而连接成为一个整体. 相似文献
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Customers, the public generally, the water industry, its regulators and the government are aware that water can be a scarce and costly product. Resource planning and development must increasingly be viewed as a combined package of water efficiency in (a) use, (b) metering and tariff policy, (c) leakage reduction, and (d) physical schemes.
Droughts, fears over possible climate change, concerns about resources and the environment, a greater awareness of the role and costs of the water industry and statements by the Department of the Environment, the Office of Water Services, and the National Rivers Authority have added weight to this sensible shift in emphasis.
However, society needs reliable water supplies and cannot completely rely upon the uncertain impact that demand side-measures may bring about – nor, even where achieved and cost-effective, on the important savings in losses. New resource schemes can take many years to implement. Therefore, in order to ensure adequate and reliable supplies, plans for new schemes must be brought to a state of readiness, and, in many cases, implemented. 相似文献
Droughts, fears over possible climate change, concerns about resources and the environment, a greater awareness of the role and costs of the water industry and statements by the Department of the Environment, the Office of Water Services, and the National Rivers Authority have added weight to this sensible shift in emphasis.
However, society needs reliable water supplies and cannot completely rely upon the uncertain impact that demand side-measures may bring about – nor, even where achieved and cost-effective, on the important savings in losses. New resource schemes can take many years to implement. Therefore, in order to ensure adequate and reliable supplies, plans for new schemes must be brought to a state of readiness, and, in many cases, implemented. 相似文献
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为了查明成兰铁路沿线茂县曲谷沟小学后山崩塌地质灾害的类型、结构形态、规模、变形特征及成因机制,对该崩塌地质灾害开展了工程地质应急勘查工作,采用地面测绘、探井、原位测试等多种勘查手段,查明该崩塌、教学楼的不稳定斜坡(陡坎)成因、类型、规模、范围、稳定状态及危害性,并分析其变形机制,表明:崩塌危岩体规模级别属中型,危害对象等级为一级,勘查地质条件类型为复杂,该灾害体治理工程等级为Ⅰ级。得到的结果可为进一步的评估防治工程提供参考。 相似文献
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With rapid urbanization in China, an increasing building density has squeezed the urban public space. Community streets are occupied by motor vehicles or other functions, and can no longer sufficiently support children to carry out safe and independent activities. As an important space for children’s daily natural contact and social activities, the lack of the spatial function of streets results in a decline in children’s subjective initiative and social abilities. The United Nations has stressed the importance of community as the basic unit of space for children’s daily activities in building child friendly cities. It is urgent to reshape child-friendly community streets and support children’s healthy growth. Integrating previous research results on affordance theory and design, children’s growth and environment, and street-game spaces, this study focuses on investigating 23 community streets in four residential communities in Nanjing through questionnaires, interviews, observations, and other methods. Then, from the perspective of cognitive affordance, functional affordance, and social affordance, it analyzes the behavioral possibilities provided by the environment and the needs of the children-user group. Finally, from the perspectives of openness and security, preference and diversity, positive and negative, and reality and potential, it proposes a method to assess the existing environment. This study aims to extract the significant characteristics of the built environment that effectively support and promote children’s outdoors activities, and explore the design strategy of improving street space sharing through optimizing space elements and structure at the medium and micro levels, so as to respond to multiple goals including livable city development from the perspective of child friendliness. This study also tries to change the logical way of design thinking and provide an eco-psychological perspective on how to build a child-friendly community. 相似文献
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校园作为城市公共设施体系中的重要组成部分,对人们的社会生活和精神文明起着重要的影响、教育、服务作用。结合安亭中学的景观改造工程实例,从校园的区位环境因素、历史文化积淀、园内景观现状等方面,分析了改造的必要性,改造工作的原则及人文理念的改造方法,重点阐释了对原有历史和景观的发现、挖掘、保护、改造和再利用。通过简洁、现代的手法,把新景观融入校园的建筑环境、历史环境和人文环境之中,重建具有视觉、生态和文化三重效益的校园景观,把校园环境变成凝固的诗、流动的画、无言的歌,从而达到"润物细无声"的效果。 相似文献
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目前,我国重大工程建设管理过程中,仍然存在道德风险、资产专用或敲竹杠以及逆向选择等隧道行为,极易引发进度延迟、成本上升、质量下降等风险,甚至导致工程失败。在分析承包商隧道行为的基础上提出业主-承包商合同治理模式,构建委托代理模型,探讨显性合同与关系合同下的激励机制。研究发现,引入关系合同与激励机制能有效防范承包商隧道行为,且能有效促进业主与承包商长期合作;政府作为重大工程管理者,应该引导工程行业建立信息公开平台与承包商筛选机制,从而提升整体行业水平,规范行业企业行为。 相似文献
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随着疫情的常态化发展,如何促进后疫情时代工程项目组织韧性的培育,提高工程项目组织应对风险的能力成为重要课题。基于此,对影响工程项目组织韧性的因素进行系统分析,通过文献研究法和专家咨询法识别出20个组织韧性的影响因素,运用DEMATEL-ISM方法,构建了DEMATEL散点图及ISM层级拓扑图,从而系统、清晰地呈现出工程项目组织韧性影响因素之间的可视化关系,进而对因素的重要程度及因果关系进行深入剖析。分析结果表明:“社会资本、组织学习、组织承诺”为组织韧性的根本因素,“组织领导、组织敏捷性、人力资本、积极情绪、战略共识”五方面因素指标具有较高的影响度及中心度,“组织协调”的被影响度最高。基于研究结果,提出了优化提升工程项目组织韧性的对策建议。 相似文献
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我国混凝土行业的和谐、科学发展 总被引:2,自引:0,他引:2
改革开放近30年来,我国混凝土行业为我国经济和建筑业的高速发展作出了重大贡献,行业发展规模及技术管理水平也取得了长足进展,但整体发展水平与世界先进水平和中央提出的建设资源节约型社会的要求相比,在节能、环保、高性能等方面还存在一定差距,需要在混凝土行业的技术、政策、管理、市场等各个方面不断提高、规范和协调,以实现我国混凝土行业的和谐、科学发展. 相似文献
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以滇中地区的紫荆泽兰茎为研究对象,测定了紫茎泽兰茎的粗脂肪含量、灰分含量、热值以及紫荆泽兰根系土壤有效磷含量。以粗脂肪含量、灰分含量以及热值为评价指标,计算了紫茎泽兰茎的燃烧性综合指数,并分析了紫茎泽兰粗脂肪含量、灰分含量、热值以及燃烧性综合指数与土壤有效磷含量的关系。研究表明,紫茎泽兰茎的粗脂肪含量、热值以及燃烧性综合指数与土壤有效磷含量呈正相关关系的比例分别为65.22% 、52.17% 和56.52% ,灰分含量与土壤有效磷含量呈负相关的比例为60.87%。土壤有效磷含量可在一定程度上增加紫茎泽兰茎的粗脂肪含量、热值,降低其灰分含量,并增强其燃烧性。 相似文献
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秦淑玲 《建筑科学与工程学报》1993,(2)
建筑是一部人类文明史,建筑装饰艺术是其中最精美的语言,它记载着科学技术的发展和文化艺术的进步,它描绘出风土人情与时代风尚。本文主要论述了建筑外形式装饰艺术的涵义及设计要点,对建筑装饰艺术的形态构成、造型与装饰、装饰的视觉效应以及建筑外形式装饰艺术的个性和设计中应注意处理好的关系进行了讨论。 相似文献