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根据我国目前存在大量非节能建筑的现状,通过分析既有建筑的围护结构、门窗及屋面设计等,提出了几种较为实用的保温结构及保温材料,门窗的新形式及新型的玻璃材料,屋面节能技术改造及施工方法等,力争降低已建及待建建筑的能耗,更好的实现节能减排。 相似文献
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文章以无锡市48栋不同建筑高度的居住建筑屋面挤塑聚苯板厚度为研究对象,按单、多层住宅建筑,二类高层住宅建筑,一类高层住宅建筑分成三类,通过PKPM软件模拟计算不同类别居住建筑的屋面挤塑聚苯板在60 mm、65 mm、70 mm、80 mm、90 mm及100 mm厚度下的单位建筑面积全年能耗量及相对节能率,其中变量仅为挤塑聚苯板的厚度。计算结果表明,单位面积全年能耗量随着屋面挤塑聚苯板厚度的增加而减少,相对节能率随着屋面挤塑聚苯板厚度的增加而提高;随着屋面挤塑聚苯板厚度由60 mm增加到100 mm,单位面积全年能耗量减少量及相对节能率增长率在某一厚度下会出现最高值,当最高值出现后,单位面积全年能耗量减少量及相对节能率增长率反而会减小。此结论为居住建筑屋面挤塑聚苯板厚度的选择提供了借鉴,有利于屋面保温做法性价比的提高及成本的控制。 相似文献
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针对近年来建筑能耗成倍增长且浪费严重的现象,提出了建筑节能势在必行,介绍了建筑能耗的组成及节能工作的重点,着重探讨了建筑的外墙、梁、柱、屋面、门窗等围护结构的节能设计,并提出用高科技节能的措施,以促进节能工作的开展。 相似文献
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针对新加坡政府在建筑屋面节能方面的做法进行了介绍,分别阐述了屋面绿化,屋面双层板隔层,小型浅水池等节能设计的效果及做法,对我国建筑物节约能耗,减少成本具有很好的借鉴作用。 相似文献
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随着国家经济的发展,建筑能耗越来越大,建筑节能的作用也越来越明显。介绍了建筑能耗的组成及节能的重点,着重探讨了建筑的外墙、门窗、屋面等围护结构的节能设计,并提出用高科技节能的措施,以促进建筑节能工作的开展。 相似文献
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Green roofs are a passive cooling technique that stop incoming solar radiation from reaching the building structure below. Many studies have been conducted over the past 10 years to consider the potential building energy benefits of green roofs and shown that they can offer benefits in winter heating reduction as well as summer cooling.This paper reviews the current literature and highlights the situations in which the greatest building energy savings can be made. Older buildings with poor existing insulation are deemed to benefit most from a green roof as current building regulations require such high levels of insulation that green roofs are seen to hardly affect annual building energy consumption.As over half of the existing UK building stock was built before any roof insulation was required, it is older buildings that will benefit most from green roofs. The case for retrofitting existing buildings is therefore reviewed and it is found there is strong potential for green roof retrofit in the UK. 相似文献
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根据东营地区的地理气候条件 ,提出适应该地区的建筑节能基本思路 ,从外保温复合墙体 ,窗的保温与节能 ,屋面节能等措施出发 ,论述了已建和新建多层住宅的节能途径 相似文献
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通过建筑与结构两个方面,分别对新建建筑物和既有建筑物进行了分析,对建筑物屋顶绿化、外墙绿化以及近旁绿化的立体绿化方案进行了设计与施工探讨,达到了全方位改善城市环境的效果。 相似文献
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旧有建筑基本采用平屋顶,耗能量大、屋顶渗漏、室内热环境差。为节约能量,解决渗漏,提高人们居住的舒适性,美化城市,提出了“平改坡”方案。通过具体工程实例,介绍了“平改坡”施工工艺,分析了“平改坡”节能的经济效益。 相似文献
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The EU-27 residential building stock offers high potential for energy efficiency gains. The policies already in place or proposed to improve the energy efficiency and thus the environmental performance focus on new buildings and major renovations of existing buildings. However, there might be additional measures that could lead to further energy efficiency improvements. In particular, the installation of roofs or windows that show a high thermal efficiency outside major renovations offer a large improvement potential. In this study, the potential environmental and economic impacts of two types of such policy options were analysed: first, measures that require high energy efficiency standards when roofs or windows have to be replaced; and, second, measures that accelerate the replacement of building elements. The results suggest that the two policies offer the potential for substantial additional energy savings. In addition, the installation of energy efficient building elements comes at negative net cost. When the replacement of building elements is accelerated, however, the additional costs do not outweigh the energy cost savings. 相似文献
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开合屋盖结构的发展及开合机理研究 总被引:12,自引:1,他引:12
开合屋盖的开合方式的选择是这类建筑设计的难点之一。回顾开合结构的发展过程 ,对现有诸如美国匹斯堡市民体育场、加拿大蒙特利尔奥运会体育馆、加拿大天空穹顶、日本福冈棒球馆、日本海洋穹顶、日本富山球穹顶、荷兰阿姆斯特丹体育场、日本小松穹顶、美国威斯康星洲米勒棒球场、2 0 0 2年世界杯足球赛的日本大分县体育公园体育场等开合屋盖建筑的开合方式进行了研究和总结 ,指出了开合屋盖结构的发展趋势 ,提出了根据建筑平面投影和立面形状划分开合方式的原则和方法 ,给出了开闭式屋盖的评价标准 相似文献