共查询到19条相似文献,搜索用时 62 毫秒
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1前言建筑体系变化的加速是建立在建材制品超前发展的基础上。建筑材料及制品首先应具备能满足现代生态建筑要求的功能 ,正如钢材、水泥的发明 ,推动了高层大跨度建筑一样。功能齐全、使用性能优良的新型建筑材料 ,正在促使着新的建筑体系的出现。石膏建材制品 ,在建筑使用中有着其它材料不可比拟的优异性能 ,如遇火灾温度升高时 ,会释放出含量高达21 %的结晶水 ,使环境温度上升速度减慢 ,失水后形成的无水硫酸钙又是良好的不燃性热绝缘体 ,能有效地阻止火势蔓延 ,具有特殊防火性能。石膏建材制品与混凝土相比 ,其耐火性要高5倍以上。此… 相似文献
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脱硫石膏空心砌块研制 总被引:3,自引:0,他引:3
脱硫石膏通过适当处理可制得性能优良的脱硫建筑石膏,利用这种优质原料生产的脱硫石膏空心砌块,轻质高强,具备做非承重墙体所要求的防火,隔热,隔音和呼吸空气中潮湿介质的要求,是对人类、环境有益的绿色建筑材料,文中对砌块的生产工艺、生产成本及用该砌块砌筑的墙体自重、造价等进行研究与分析。 相似文献
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脱硫石膏是电厂的废弃物,通过适当算是可制得性能优良的脱硫建筑石膏,脱硫石膏空心砌块轻质,高强,具备非承重墙所需求的防火,隔热,隔音,调湿的要求。这种砌块生产工艺简便,产品成本低,可创造较好的经济效益。具有很经的市场竞争力。 相似文献
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利用脱硫建筑石膏制备空心条板 总被引:1,自引:0,他引:1
研究了适合于脱硫建筑石膏的复合发泡剂,其主要成分为松香皂及引气剂A,稳泡剂的主要成分为纤维素;并确定了脱硫建筑石膏的发泡温度、搅拌速度、搅拌时间等发泡工艺参数,其综合发泡效果可使产品的表观密度减少15%。并以脱硫建筑石膏为主要原料,采用自行研制的发泡剂进行发泡,制备了空心条板,产品经检测其各项性能均符合国家相关标准。 相似文献
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在学校教室中,常需要整个教室做一个大跨度的大板,中间不设置梁,用以满足建筑净高。使用现浇空心楼板可满足使用功能,并有利于抗震,节约材料。介绍空心板的计算构造和工程实例。 相似文献
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《Energy and Buildings》1996,24(1):77-83
Fiber-reinforced plastic (FRP) materials are extensively used in building construction, primarily due to their superior structural performance characteristics. Recently, a newly-developed concept consisting of a prefabricated, interlocking fiberglass composite panel system has been adopted for use in the construction of building envelope systems. The structural characteristics of these panels allow, among other things, expeditious construction. Other performance advantages include corrosion resistance, reduced maintenance, electric insulation characteristics, and electromagnetic transparency. Since little information is available on the thermal performance characteristics of such a panel system, a testing program was developed to investigate the thermal insulation characteristics of FRP panels that are commercially available at the present. Two full-scale 1.2 m by 1.2 m (4 ft by 4 ft) FRP panels were tested. Two panel thicknesses were considered: 25 mm (1 in.) and 75 mm (3 in.). The thermal characteristics of the panels were measured including the effects of the presence of the joints between the panels. A temperature-controlled test plate, calibrated with fibrous glass board material of known thermal conductivity, was used with heat flow sensors to determine the thermal resistance of the FRP panels at the mid-sections of panels and at the interfaces (i.e. joints) between two adjoining panels. Two conditions were simulated; ‘dry joint’ which includes only mechanical interlocking at the joints, and ‘sealed joint’ in which the joints were sealed with a commercially available sealant. The R values of the tested panels were approximately 5% to 46% higher in the sealed-joint condition. Sealed joints decrease heat exchange across the envelope system, thereby increasing the thermal resistance values of the panel system. The relatively high R value of the 75 mm panel system (2.0 (m2 K)/W (11.36 (h ft2 °F)/Btu)) is encouraging, and makes this envelope system a potential candidate for wider use in energy-conscious commercial buildings. 相似文献
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异地建造和建筑信息模型(BIM)等技术在减少材料浪费等方面为建筑业带来了效益,并为可持续建造提供了解决方案。但轻型框架建筑行业仍产生大量的建筑废弃物。因此,本文提出一种基于BIM的自动化方法,通过装配式建筑屋顶覆盖层安装设计,减少覆盖材料浪费。设计基于BIM的覆盖层布局设计算法,实现了施工设计的自动化,并对生成的布局进行优化,以最大限度减少覆盖层材料浪费。本文结合两个实例验证该方法在减少屋顶覆盖材料浪费方面的可行性和有效性。 相似文献
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以脱硫石膏为主要原料进行了墙体材料制备及性能的试验研究,分别对所得建筑石膏的细度、凝结时间、2 h力学强度等性能进行了试验测定,并与市售建筑石膏的性能进行了对比。脱硫石膏在135℃、145℃、155℃、165℃分别炒制2.5 h、3.5 h所获得建筑石膏的性能试验,再以最佳炒制条件下炒制的脱硫石膏为主要原料,以水泥、矿渣、粉煤灰、龄期为因素制备复合砌块。结果表明,其细度均达到优等品要求;标准稠度用水量为70%~74%;135℃~165℃炒制3.5 h均能得到优质建筑石膏,其中165℃炒制3.5 h所得的建筑石膏性能最佳,复合砌块的最佳配料为水泥12.5%、矿渣12%、粉煤灰10%、养护时间7 d。 相似文献
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Y.-F. Wu 《Construction and Building Materials》2009,23(8):2905-2913
Glass fiber reinforced gypsum (GFRG) walls are prefabricated large gypsum panels with hollow cores. Developed in Australia in the early 1990s and subsequently adopted by other countries, including China and India, this material is used in residential, commercial, and industrial buildings. GFRG walls are used both architecturally and structurally as walls and slabs, with no columns and beams required. They have already found wide application, even without mature structural design codes, largely because of their environmental friendliness. In India, GFRG walls have been approved by the World Bank as being eligible for Carbon Credits under the Kyoto Protocol. GFRG panels are a composite material consisting of gypsum plaster and glass fibers. When the cavities are filled with reinforced concrete, the interaction between the concrete and the GFRG panels produces another composite. As a result, the structural behavior of GFRG walls and the associated building system are more complicated than that of conventional structural systems. This paper presents the results of extensive experimental and theoretical investigations into the structural behavior of GFRG walls, and offers a structural design methodology for GFRG walls and the associated building system. 相似文献
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BIM技术促进了装配式建筑发展.本文基于BIM技术,研究装配式建筑施工质量管理.首先在系统性、动态性、协同性和可扩展性等原则下,构建装配式建筑施工质量管理体系.然后结合工程案例,运用质量管理体系对预制构件厂生产和施工现场吊装施工质量进行管理,提出碰撞检测、构件信息统计和项目进度信息等质量管理内容. 相似文献
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新型装配式建筑管理过程涉及云制造BIM管理模型与建设工程BIM管理模型的结合,通过将整体工程分解为多个独立单项工程,并使用BIM系统对其进行接续管理,形成管理模型。本研究对该模型进行了开发应用实践,通过仿真验证,发现该系统的管理效能较传统模式提升27.1%,工期缩短19.3%,施工成本压缩22.5%,良品率提升8.2%,证实了该系统在工程管理中有积极意义。 相似文献