玻璃(li)幕墙，是指由支承(cheng)结构(gou)(gou)体(ti)系(xi)可(ke)相对主体(ti)结构(gou)(gou)有一(yi)定位移能力、不分(fen)担主体(ti)结构(gou)(gou)所(suo)受作用的建(jian)筑(zhu)外围护结构(gou)(gou)或装饰结构(gou)(gou)。墙(qiang)体(ti)有单层和双(shuang)层玻璃两种(zhong)。玻璃幕墙(qiang)是一(yi)种(zhong)美观新颖的建(jian)筑(zhu)墙(qiang)体(ti)装饰方法，是现代主义高层建(jian)筑(zhu)时(shi)代的显(xian)著特征。

功能作用

现代(dai)化高层(ceng)(ceng)建筑的(de)(de)玻(bo)(bo)(bo)璃(li)幕(mu)墙(qiang)采用(yong)了(le)(le)由镜面(mian)玻(bo)(bo)(bo)璃(li)与普通玻(bo)(bo)(bo)璃(li)组(zu)合，隔层(ceng)(ceng)充(chong)入干(gan)燥空(kong)(kong)(kong)(kong)气或惰性气体的(de)(de)中(zhong)(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)。中(zhong)(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)有两(liang)(liang)层(ceng)(ceng)和三(san)层(ceng)(ceng)之(zhi)分(fen)，两(liang)(liang)层(ceng)(ceng)中(zhong)(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)由两(liang)(liang)层(ceng)(ceng)玻(bo)(bo)(bo)璃(li)加密封框(kuang)架，形(xing)成一个夹层(ceng)(ceng)空(kong)(kong)(kong)(kong)间；三(san)层(ceng)(ceng)玻(bo)(bo)(bo)璃(li)则是由三(san)层(ceng)(ceng)玻(bo)(bo)(bo)璃(li)构成两(liang)(liang)个夹层(ceng)(ceng)空(kong)(kong)(kong)(kong)间。中(zhong)(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)具有隔音、隔热(re)(re)、防结霜(shuang)、防潮、抗风压强度(du)(du)(du)大(da)(da)等优点。据测(ce)量，当室外温(wen)度(du)(du)(du)为(wei)－10℃时(shi)，单层(ceng)(ceng)玻(bo)(bo)(bo)璃(li)窗前的(de)(de)温(wen)度(du)(du)(du)为(wei)－2℃，而使用(yong)三(san)层(ceng)(ceng)中(zhong)(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)的(de)(de)室内温(wen)度(du)(du)(du)为(wei)13℃。而在炎热(re)(re)夏天，双层(ceng)(ceng)中(zhong)(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)可(ke)以挡住(zhu)90的(de)(de)太阳辐射热(re)(re)。阳光依然(ran)可(ke)以透(tou)过玻(bo)(bo)(bo)璃(li)幕(mu)墙(qiang)，但晒在身上(shang)大(da)(da)多不会感到炎热(re)(re)。使用(yong)中(zhong)(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)璃(li)幕(mu)墙(qiang)的(de)(de)房(fang)间可(ke)以做到冬(dong)暖夏凉，很大(da)(da)地改善了(le)(le)生活(huo)环境。

基本分类

框支撑(cheng)玻(bo)璃(li)幕墙是玻(bo)璃(li)面板周边由金属(shu)框架支撑(cheng)的玻(bo)璃(li)幕墙，主要(yao)包(bao)括：

玻(bo)(bo)璃幕墙(qiang)是(shi)金(jin)属框架(jia)构(gou)(gou)件(jian)显露在(zai)外表面的玻(bo)(bo)璃幕墙(qiang)。它(ta)以特殊断(duan)面的铝合(he)金(jin)型材为框架(jia)，玻(bo)(bo)璃面板全嵌入型材的凹槽内。其特点(dian)在(zai)于(yu)铝合(he)金(jin)型材本身兼有骨架(jia)结构(gou)(gou)和固定玻(bo)(bo)璃的双重作(zuo)用(yong)。

玻璃幕(mu)墙是传统(tong)的(de)形(xing)式，应用广泛，工(gong)作性能(neng)可靠。相对于隐框玻璃幕(mu)墙，更易满足施工(gong)技术水平要求。