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幕墙作为建筑中的特殊领域,BIM全生命周期应用将是建筑幕墙创新发展的一个里程碑,特别是在复杂幕墙建造中至关重要。本文通过对众多幕墙项目的研究,分析当前环境下实现BIM正向设计存在的难点问题,研究BIM正向设计实现的思路,最后以实际案例分享幕墙BIM正向设计的实践过程。 相似文献
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双层通风幕墙能够较好的解决自然采光与建筑物理性能间的矛盾,应用前景广泛.本文追溯双层通风幕墙的历史及演化过程,并总结了目前国内双层通风幕墙发展现状,对我国双层通风幕墙以后的发展具有借鉴作用. 相似文献
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装配式建筑全生命周期绿色度评价能够促进建筑生产方式转型和绿色发展。从全生命周期角度构建设计、生产运输、施工和使用维护4阶段装配式建筑绿色度评价指标体系,耦合云模型和AHP建立装配式建筑全生命周期绿色度评价模型,并结合甘肃省装配式建筑实例进行验证。结果表明:甘肃省装配式建筑绿色度评价等级为一级,装配式建筑绿色度评价模型具有可行性和合理性。 相似文献
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双层幕墙作为一种集节能和美观于一体的外围护结构,在北京地区已得到了广泛的应用,经统计北京现已建成的应用双层幕墙的16座建筑,得出双层幕墙在具有采光性能好等优点的同时还有围护费用高等缺点,在绿色建筑应用中应综合考虑,其应用前景广阔。 相似文献
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随着幕墙在建筑活动中的不断应用以及人们环保意识的逐渐增强,环保节能幕墙已开始成为幕墙建筑的主流。本文就光电幕墙、双层动态节能幕墙和生态幕墙三类主要环保节能幕墙结构形式进行了动态节能技术分析。 相似文献
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简要阐述了BIM的概念,介绍了BIM技术在建筑幕墙从方案设计到幕墙移交和维保阶段全生命周期中的应用,并结合北京2022年冬季奥运会配套项目崇礼太子城冰雪小镇幕墙及屋面工程,详细研究了BIM技术在施工过程中的应用。该技术解决了诸多以往常规技术遇到的问题。 相似文献
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Modern Movement in architecture has resulted in a large number of high-rise buildings with glazed facades which increase the energy load of the buildings. To combat this phenomenon in colder climates, architects have turned to using double skin facades. These facades comprise of: a completely transparent external facade; an internal skin; and an air layer between the two. Research on the performance of double skin facades mostly considers cold and moderate climates. In addition, data collection is normally based on simulations, rather than actual field measurements. In this paper a building with double skin facade was monitored for 2 weeks in summer and 2 weeks in winter in the hot arid climate of Iran, in order to observe the behaviour of the facade both in hot and cold conditions. Additionally, simulations were performed on the case study building with and without double skin facade, to assess the effectiveness of the facade. The results revealed that the temperature difference between the outer skin, the inner skin and the cavity can significantly save heating energy in winter. To reduce the cooling loads in summer it is essential to introduce additional techniques such as night ventilation and installation of shading devices for the cavity. 相似文献
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以节能、生态为理念的双幕墙围护体系已逐步应用于高层办公建筑中。由于双幕墙之间存在通风廊道,因此对于双幕墙建筑有三个受风表面,即外层幕墙的内表面和外表面以及内幕墙的外表面,这使得风载取值变得复杂,目前也无规范可依。本文通过对杭州市某双幕墙办公楼的风洞试验研究,探讨了双幕墙建筑内、外层幕墙的风载取值问题;研究了门厅大跨挑篷风压分布特征,当风从侧面吹向挑篷时,挑篷上、下表面风载与普通屋盖挑篷相同,而当风从正面吹向挑篷时,挑篷上表面出现正风压,并对此现象进行了分析;文中针对该建筑物长宽比较大的特点,比较了大长宽比矩形建筑风载体型系数与规范给出的正方形建筑风载体型系数:当风沿建筑物长向流动时,采用规范给出的正方形建筑风载体型系数是可行的,当风沿建筑物进深方向流动时,其两侧及背风面的负压比正方形的大。 相似文献
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通过对武汉某建筑物呼吸式双层皮玻璃幕墙流场的模拟,分析了进、出风口位置与大小对热工性能的影响,最后,给出一些设计建议。 相似文献
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As a new-style building, the thermal performance of double skin facade with the venetian blind cannot be predicted for the absence of suitable tool. In the paper, a detailed analysis of the thermal process in glass double facade with venetian blind was made. The governing equations were solved by comprising CFD, optical and heat balance model for multi-layer transparent system. It is shown that the more complex natural ventilation exists in the two air gaps divided by venetian blind, which cannot be reflected with the simplified model. Comparing the simulation results with the experiment data in the literature, a good agreement was achieved. Hence, it can be used as a reliable tool to analyze the ventilation in the double skin facade with a venetian blind. 相似文献
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王雪松 《土木建筑与环境工程》2003,25(6):5-9
双层皮外墙作为一种革新的外墙体系,具有环境友善的功能和独特的美学效果,本文简述了双层皮外墙的构造组成及功能特点,在探究该技术发展历程的基础上,结合典型建筑案例对其分类进行了详细的阐述,并指出双层皮外墙在探求可持续发展的21世纪将有广阔的发展空间和应用前景,功能和美学始终是其类型研究的基石。 相似文献
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Maria Kolokotroni Syreeta Robinson-Gayle Stephen Tanno Andrew Cripps 《Building Research & Information》2004,32(1):2-16
The design of a building facade influences internal thermal and lighting conditions and energy use associated with the provision of these conditions. Key decisions about the building facade are usually taken during the concept design stage of a building, while decisions about the method of providing the environmental conditions are often made later in the design process. This dilemma is addressed by the development of a concept design tool that allows the design team to investigate the effect of facade design on the resulting internal environmental conditions, energy use and environmental impact. The concept design tool was developed by performing detailed thermal, lighting and environmental modelling for a number of generic office building facade designs and a range of parameters that affect directly the environmental performance of an office building. The results are presented in a user-friendly interface requiring a minimum number of inputs. Key parameter outputs (such as temperature, lighting levels, heating/cooling energy demand, embodied energy and eco-points) can then be viewed, while a more detailed analysis can also be created for specified facade designs. A parametric analysis of the summary result outputs for selected facade parameters indicates that natural ventilation and cooling can reduce the environmental impact of offices by up to 16%, although heating energy demand could increase significantly. Improving the construction standard of the facade and reducing the internal heat loads can reduce the environmental impact by up to 22%. Use of this tool at early design stages will benefit the design team through an improved understanding of the dynamics between facade design and building services and assist with a more integrated approach. 相似文献
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借2011年9月首届中国一亚欧博览会在乌鲁木齐召开的契机,伴随着城市美化工作的开展,之前乌鲁木齐街道景观的混乱和无序引起了人们的注意,同时引发了对乌鲁木齐城市沿街建筑表皮改造的思考。本文将沿街建筑表皮的改造设计放到全国各大中城市纷纷开展“市容环境整治”活动,以及新疆跨越式大发展的背景下,从乌鲁木齐市城市街景整治项目的实际出发,初步罗列出关于沿街建筑外立面改造的一些手法,对于当前及其今后的沿街建筑外立面改造的实践工作提出了有益的建议。 相似文献