玻璃幕墙(qiang)，是指由支承结构体(ti)系可相对主体(ti)结构有一定位移能力、不分(fen)担(dan)主体(ti)结构所受作用的建筑外围护结构或装饰结构。墙体(ti)有单层和双层玻璃两种(zhong)。玻璃幕墙是一种(zhong)美(mei)观新(xin)颖的建筑墙体(ti)装饰方(fang)法(fa)，是现代主义高层建筑时(shi)代的显著特征。

功能作用

现代化高层(ceng)(ceng)(ceng)(ceng)(ceng)建筑的(de)(de)(de)(de)玻(bo)(bo)(bo)璃(li)(li)(li)(li)幕(mu)(mu)墙(qiang)(qiang)采用(yong)了由镜面(mian)玻(bo)(bo)(bo)璃(li)(li)(li)(li)与普通玻(bo)(bo)(bo)璃(li)(li)(li)(li)组合，隔层(ceng)(ceng)(ceng)(ceng)(ceng)充(chong)入干(gan)燥空气(qi)或惰性气(qi)体的(de)(de)(de)(de)中(zhong)(zhong)空玻(bo)(bo)(bo)璃(li)(li)(li)(li)。中(zhong)(zhong)空玻(bo)(bo)(bo)璃(li)(li)(li)(li)有(you)两(liang)(liang)层(ceng)(ceng)(ceng)(ceng)(ceng)和三层(ceng)(ceng)(ceng)(ceng)(ceng)之(zhi)分，两(liang)(liang)层(ceng)(ceng)(ceng)(ceng)(ceng)中(zhong)(zhong)空玻(bo)(bo)(bo)璃(li)(li)(li)(li)由两(liang)(liang)层(ceng)(ceng)(ceng)(ceng)(ceng)玻(bo)(bo)(bo)璃(li)(li)(li)(li)加密封框架，形成一个夹层(ceng)(ceng)(ceng)(ceng)(ceng)空间(jian)(jian)；三层(ceng)(ceng)(ceng)(ceng)(ceng)玻(bo)(bo)(bo)璃(li)(li)(li)(li)则是由三层(ceng)(ceng)(ceng)(ceng)(ceng)玻(bo)(bo)(bo)璃(li)(li)(li)(li)构成两(liang)(liang)个夹层(ceng)(ceng)(ceng)(ceng)(ceng)空间(jian)(jian)。中(zhong)(zhong)空玻(bo)(bo)(bo)璃(li)(li)(li)(li)具有(you)隔音、隔热、防(fang)结霜(shuang)、防(fang)潮、抗风压强度大(da)(da)等(deng)优点。据测(ce)量，当室外温(wen)度为－10℃时，单(dan)层(ceng)(ceng)(ceng)(ceng)(ceng)玻(bo)(bo)(bo)璃(li)(li)(li)(li)窗(chuang)前(qian)的(de)(de)(de)(de)温(wen)度为－2℃，而(er)使(shi)用(yong)三层(ceng)(ceng)(ceng)(ceng)(ceng)中(zhong)(zhong)空玻(bo)(bo)(bo)璃(li)(li)(li)(li)的(de)(de)(de)(de)室内(nei)温(wen)度为13℃。而(er)在炎热夏天(tian)，双层(ceng)(ceng)(ceng)(ceng)(ceng)中(zhong)(zhong)空玻(bo)(bo)(bo)璃(li)(li)(li)(li)可(ke)(ke)以(yi)挡住90的(de)(de)(de)(de)太阳辐射热。阳光依然可(ke)(ke)以(yi)透过玻(bo)(bo)(bo)璃(li)(li)(li)(li)幕(mu)(mu)墙(qiang)(qiang)，但(dan)晒在身(shen)上大(da)(da)多不(bu)会感到(dao)炎热。使(shi)用(yong)中(zhong)(zhong)空玻(bo)(bo)(bo)璃(li)(li)(li)(li)幕(mu)(mu)墙(qiang)(qiang)的(de)(de)(de)(de)房间(jian)(jian)可(ke)(ke)以(yi)做到(dao)冬暖夏凉(liang)，很大(da)(da)地改善了生活环(huan)境。

基本分类

框支撑玻璃(li)幕(mu)墙(qiang)是(shi)玻璃(li)面(mian)板周(zhou)边由金属框架支撑的玻璃(li)幕(mu)墙(qiang)，主要包括(kuo)：

玻(bo)璃幕(mu)墙(qiang)是(shi)金属(shu)框架(jia)构件显露在外表(biao)面(mian)的(de)玻(bo)璃幕(mu)墙(qiang)。它以特(te)殊断面(mian)的(de)铝(lv)合金型材为(wei)框架(jia)，玻(bo)璃面(mian)板全嵌入型材的(de)凹槽内。其(qi)特(te)点在于铝(lv)合金型材本身兼有骨架(jia)结构和固定(ding)玻(bo)璃的(de)双重作(zuo)用。

玻璃(li)幕墙是传统(tong)的形式，应用广泛，工(gong)作性能可靠。相(xiang)对(dui)于隐框玻璃(li)幕墙，更易满足(zu)施工(gong)技术水平(ping)要求。