玻璃幕墙，是指由支(zhi)承结构(gou)体系可相对主(zhu)(zhu)体结构(gou)有一定(ding)位移能力、不分担主(zhu)(zhu)体结构(gou)所受作用的(de)建筑(zhu)外围护结构(gou)或装饰结构(gou)。墙(qiang)(qiang)体有单层和双层玻(bo)璃(li)两种(zhong)。玻(bo)璃(li)幕墙(qiang)(qiang)是一种(zhong)美观新(xin)颖的(de)建筑(zhu)墙(qiang)(qiang)体装饰方法，是现(xian)代主(zhu)(zhu)义高层建筑(zhu)时(shi)代的(de)显著特征。

功能作用

现代化高层(ceng)(ceng)(ceng)建筑的(de)玻(bo)(bo)(bo)璃(li)(li)(li)(li)幕墙采用(yong)了由镜面玻(bo)(bo)(bo)璃(li)(li)(li)(li)与普通(tong)玻(bo)(bo)(bo)璃(li)(li)(li)(li)组合，隔(ge)层(ceng)(ceng)(ceng)充入干燥空(kong)(kong)(kong)(kong)气或惰(duo)性气体的(de)中(zhong)(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)(li)(li)(li)。中(zhong)(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)(li)(li)(li)有(you)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)(kong)玻(bo)(bo)(bo)璃(li)(li)(li)(li)由两层(ceng)(ceng)(ceng)玻(bo)(bo)(bo)璃(li)(li)(li)(li)加密封框(kuang)架(jia)，形成(cheng)一个(ge)夹(jia)层(ceng)(ceng)(ceng)空(kong)(kong)(kong)(kong)间；三(san)层(ceng)(ceng)(ceng)玻(bo)(bo)(bo)璃(li)(li)(li)(li)则是(shi)由三(san)层(ceng)(ceng)(ceng)玻(bo)(bo)(bo)璃(li)(li)(li)(li)构成(cheng)两个(ge)夹(jia)层(ceng)(ceng)(ceng)空(kong)(kong)(kong)(kong)间。中(zhong)(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)(li)(li)(li)具有(you)隔(ge)音、隔(ge)热、防(fang)结霜(shuang)、防(fang)潮、抗风压强度大(da)等优点。据测量，当室外温度为(wei)(wei)－10℃时，单层(ceng)(ceng)(ceng)玻(bo)(bo)(bo)璃(li)(li)(li)(li)窗(chuang)前(qian)的(de)温度为(wei)(wei)－2℃，而使(shi)用(yong)三(san)层(ceng)(ceng)(ceng)中(zhong)(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)(li)(li)(li)的(de)室内温度为(wei)(wei)13℃。而在炎(yan)热夏(xia)天，双层(ceng)(ceng)(ceng)中(zhong)(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)(li)(li)(li)可(ke)以挡住90的(de)太阳辐射(she)热。阳光依然可(ke)以透过玻(bo)(bo)(bo)璃(li)(li)(li)(li)幕墙，但晒(shai)在身上大(da)多(duo)不会感到(dao)炎(yan)热。使(shi)用(yong)中(zhong)(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)(li)(li)(li)幕墙的(de)房间可(ke)以做到(dao)冬暖夏(xia)凉，很大(da)地改善了生活环境。

基本分类

框支撑(cheng)玻璃幕墙是(shi)玻璃面板周边由金属框架支撑(cheng)的玻璃幕墙，主(zhu)要(yao)包括：

玻(bo)璃(li)幕(mu)墙是金属框架(jia)构件显露在外(wai)表面(mian)的玻(bo)璃(li)幕(mu)墙。它以特殊断面(mian)的铝合金型材为框架(jia)，玻(bo)璃(li)面(mian)板全嵌入型材的凹(ao)槽内。其特点在于铝合金型材本身(shen)兼有骨(gu)架(jia)结构和固定玻(bo)璃(li)的双重作用。

玻璃幕墙是传(chuan)统的形式，应用广泛(fan)，工(gong)(gong)作性能可靠。相对于隐(yin)框玻璃幕墙，更易满足(zu)施工(gong)(gong)技术(shu)水平要求(qiu)。