玻璃幕墙(qiang)，是指由支承(cheng)结(jie)(jie)构(gou)(gou)(gou)体(ti)(ti)(ti)系(xi)可相对主体(ti)(ti)(ti)结(jie)(jie)构(gou)(gou)(gou)有一定位移能力、不分担主体(ti)(ti)(ti)结(jie)(jie)构(gou)(gou)(gou)所受作用的(de)建(jian)筑外(wai)围护结(jie)(jie)构(gou)(gou)(gou)或装饰(shi)结(jie)(jie)构(gou)(gou)(gou)。墙体(ti)(ti)(ti)有单层和双层玻璃(li)两种。玻璃(li)幕墙是一种美观新(xin)颖的(de)建(jian)筑墙体(ti)(ti)(ti)装饰(shi)方(fang)法，是现代主义高层建(jian)筑时代的(de)显著(zhu)特征。

功能作用

现代化(hua)高层(ceng)(ceng)(ceng)建筑(zhu)的玻(bo)(bo)(bo)璃(li)幕(mu)墙采用了由(you)镜面玻(bo)(bo)(bo)璃(li)与普通玻(bo)(bo)(bo)璃(li)组合，隔层(ceng)(ceng)(ceng)充入干燥空(kong)(kong)(kong)气或惰性气体(ti)的中(zhong)(zhong)空(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)。中(zhong)(zhong)空(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)有两层(ceng)(ceng)(ceng)和三(san)层(ceng)(ceng)(ceng)之分，两层(ceng)(ceng)(ceng)中(zhong)(zhong)空(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)由(you)两层(ceng)(ceng)(ceng)玻(bo)(bo)(bo)璃(li)加密封框(kuang)架(jia)，形成一个夹(jia)层(ceng)(ceng)(ceng)空(kong)(kong)(kong)间；三(san)层(ceng)(ceng)(ceng)玻(bo)(bo)(bo)璃(li)则是由(you)三(san)层(ceng)(ceng)(ceng)玻(bo)(bo)(bo)璃(li)构成两个夹(jia)层(ceng)(ceng)(ceng)空(kong)(kong)(kong)间。中(zhong)(zhong)空(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)具有隔音、隔热(re)(re)、防结(jie)霜、防潮、抗(kang)风压强度大(da)等优点。据测量，当室外温度为－10℃时(shi)，单层(ceng)(ceng)(ceng)玻(bo)(bo)(bo)璃(li)窗前(qian)的温度为－2℃，而使用三(san)层(ceng)(ceng)(ceng)中(zhong)(zhong)空(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)的室内温度为13℃。而在炎热(re)(re)夏天，双层(ceng)(ceng)(ceng)中(zhong)(zhong)空(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)可以(yi)(yi)挡住90的太(tai)阳辐射热(re)(re)。阳光依(yi)然(ran)可以(yi)(yi)透过玻(bo)(bo)(bo)璃(li)幕(mu)墙，但晒(shai)在身上大(da)多不会感(gan)到炎热(re)(re)。使用中(zhong)(zhong)空(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)幕(mu)墙的房间可以(yi)(yi)做到冬暖夏凉，很(hen)大(da)地改善(shan)了生活(huo)环境。

基本分类

框支撑玻(bo)璃(li)幕(mu)墙是玻(bo)璃(li)面(mian)板周边由(you)金属(shu)框架支撑的玻(bo)璃(li)幕(mu)墙，主要包括：

玻(bo)璃幕(mu)墙(qiang)是金属框架构件显露在外表面(mian)的玻(bo)璃幕(mu)墙(qiang)。它以特殊断面(mian)的铝合金型材(cai)为框架，玻(bo)璃面(mian)板全嵌入型材(cai)的凹槽内(nei)。其特点(dian)在于铝合金型材(cai)本身(shen)兼有骨(gu)架结构和固定(ding)玻(bo)璃的双重作用。

玻(bo)璃幕墙是(shi)传(chuan)统的(de)形式(shi)，应用(yong)广(guang)泛(fan)，工作性能可靠。相(xiang)对于隐框玻(bo)璃幕墙，更(geng)易(yi)满足施工技术(shu)水平要(yao)求。