玻璃幕(mu)墙，是指由支承结(jie)构(gou)(gou)体(ti)系可相对主体(ti)结(jie)构(gou)(gou)有(you)一(yi)定位移能力、不分担主体(ti)结(jie)构(gou)(gou)所受作用的建筑(zhu)(zhu)外围护结(jie)构(gou)(gou)或装饰结(jie)构(gou)(gou)。墙(qiang)体(ti)有(you)单(dan)层和双(shuang)层玻璃两种。玻璃幕墙(qiang)是一(yi)种美(mei)观新颖(ying)的建筑(zhu)(zhu)墙(qiang)体(ti)装饰方法，是现代(dai)主义高层建筑(zhu)(zhu)时代(dai)的显(xian)著(zhu)特征。

功能作用

现(xian)代化(hua)高层(ceng)(ceng)(ceng)(ceng)建筑的(de)(de)玻(bo)(bo)(bo)(bo)璃(li)(li)幕墙(qiang)采(cai)用(yong)了由(you)镜面玻(bo)(bo)(bo)(bo)璃(li)(li)与(yu)普通(tong)玻(bo)(bo)(bo)(bo)璃(li)(li)组(zu)合，隔层(ceng)(ceng)(ceng)(ceng)充入干燥空(kong)气(qi)或惰性气(qi)体的(de)(de)中(zhong)(zhong)(zhong)空(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)。中(zhong)(zhong)(zhong)空(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)有(you)(you)两(liang)层(ceng)(ceng)(ceng)(ceng)和三(san)层(ceng)(ceng)(ceng)(ceng)之分，两(liang)层(ceng)(ceng)(ceng)(ceng)中(zhong)(zhong)(zhong)空(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)由(you)两(liang)层(ceng)(ceng)(ceng)(ceng)玻(bo)(bo)(bo)(bo)璃(li)(li)加密封框架，形成一个(ge)夹层(ceng)(ceng)(ceng)(ceng)空(kong)间(jian)；三(san)层(ceng)(ceng)(ceng)(ceng)玻(bo)(bo)(bo)(bo)璃(li)(li)则是由(you)三(san)层(ceng)(ceng)(ceng)(ceng)玻(bo)(bo)(bo)(bo)璃(li)(li)构成两(liang)个(ge)夹层(ceng)(ceng)(ceng)(ceng)空(kong)间(jian)。中(zhong)(zhong)(zhong)空(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)具有(you)(you)隔音、隔热、防结(jie)霜、防潮、抗风压强度大(da)等优点。据测(ce)量(liang)，当室外温度为(wei)－10℃时(shi)，单层(ceng)(ceng)(ceng)(ceng)玻(bo)(bo)(bo)(bo)璃(li)(li)窗前的(de)(de)温度为(wei)－2℃，而使用(yong)三(san)层(ceng)(ceng)(ceng)(ceng)中(zhong)(zhong)(zhong)空(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)的(de)(de)室内温度为(wei)13℃。而在(zai)炎热夏天(tian)，双层(ceng)(ceng)(ceng)(ceng)中(zhong)(zhong)(zhong)空(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)可(ke)以(yi)(yi)挡住90的(de)(de)太(tai)阳辐射热。阳光依(yi)然可(ke)以(yi)(yi)透过玻(bo)(bo)(bo)(bo)璃(li)(li)幕墙(qiang)，但晒在(zai)身上大(da)多(duo)不会感到炎热。使用(yong)中(zhong)(zhong)(zhong)空(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)幕墙(qiang)的(de)(de)房间(jian)可(ke)以(yi)(yi)做到冬暖夏凉，很大(da)地改善了生活(huo)环境(jing)。

基本分类

框支(zhi)撑(cheng)玻璃(li)幕(mu)墙是玻璃(li)面板周边由金属框架支(zhi)撑(cheng)的玻璃(li)幕(mu)墙，主要包括：

玻(bo)(bo)璃(li)幕(mu)墙是金属框架构件显露(lu)在外表面(mian)的玻(bo)(bo)璃(li)幕(mu)墙。它以特殊断(duan)面(mian)的铝(lv)合金型材为框架，玻(bo)(bo)璃(li)面(mian)板全嵌(qian)入型材的凹(ao)槽内。其特点在于铝(lv)合金型材本身兼(jian)有骨架结构和(he)固定玻(bo)(bo)璃(li)的双重作用。

玻(bo)璃(li)幕墙是传统的形式，应用广(guang)泛，工(gong)作(zuo)性能可靠。相(xiang)对(dui)于(yu)隐框玻(bo)璃(li)幕墙，更(geng)易满(man)足施工(gong)技术水平要(yao)求(qiu)。