玻璃幕墙，是指由支承结构(gou)(gou)(gou)体系可(ke)相对主体结构(gou)(gou)(gou)有一定位移能(neng)力、不(bu)分担主体结构(gou)(gou)(gou)所受(shou)作用的(de)建(jian)筑(zhu)(zhu)外围护结构(gou)(gou)(gou)或(huo)装饰(shi)结构(gou)(gou)(gou)。墙(qiang)体有单层和双层玻璃两种。玻璃幕墙(qiang)是一种美观新颖的(de)建(jian)筑(zhu)(zhu)墙(qiang)体装饰(shi)方法(fa)，是现代主义高层建(jian)筑(zhu)(zhu)时代的(de)显著特征。

功能作用

现(xian)代化高层(ceng)(ceng)建(jian)筑的玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)幕墙采(cai)用了由(you)镜面(mian)玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)与普通玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)组(zu)合(he)，隔(ge)层(ceng)(ceng)充入干(gan)燥(zao)空(kong)(kong)气或(huo)惰性气体(ti)的中(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)。中(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)有两(liang)层(ceng)(ceng)和三(san)层(ceng)(ceng)之分，两(liang)层(ceng)(ceng)中(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)由(you)两(liang)层(ceng)(ceng)玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)加密封框(kuang)架，形成(cheng)一个夹(jia)(jia)层(ceng)(ceng)空(kong)(kong)间(jian)；三(san)层(ceng)(ceng)玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)则是由(you)三(san)层(ceng)(ceng)玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)构(gou)成(cheng)两(liang)个夹(jia)(jia)层(ceng)(ceng)空(kong)(kong)间(jian)。中(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)具有隔(ge)音、隔(ge)热(re)、防(fang)(fang)结霜、防(fang)(fang)潮、抗风压强度(du)(du)大等优点。据测(ce)量，当室(shi)外温(wen)(wen)度(du)(du)为(wei)－10℃时，单层(ceng)(ceng)玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)窗前的温(wen)(wen)度(du)(du)为(wei)－2℃，而使(shi)用三(san)层(ceng)(ceng)中(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)的室(shi)内温(wen)(wen)度(du)(du)为(wei)13℃。而在炎(yan)热(re)夏天，双(shuang)层(ceng)(ceng)中(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)可以(yi)挡住(zhu)90的太阳辐(fu)射(she)热(re)。阳光依然可以(yi)透过玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)幕墙，但晒在身上(shang)大多不会感到(dao)炎(yan)热(re)。使(shi)用中(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)幕墙的房(fang)间(jian)可以(yi)做到(dao)冬暖夏凉，很大地改善(shan)了生(sheng)活环境。

基本分类

框(kuang)支(zhi)撑(cheng)(cheng)玻(bo)(bo)璃幕墙(qiang)是玻(bo)(bo)璃面(mian)板周(zhou)边由金属框(kuang)架支(zhi)撑(cheng)(cheng)的玻(bo)(bo)璃幕墙(qiang)，主(zhu)要包括：

玻璃(li)(li)幕墙是金(jin)(jin)属框架(jia)构(gou)件(jian)显(xian)露在外表面(mian)的(de)玻璃(li)(li)幕墙。它以(yi)特殊断面(mian)的(de)铝合金(jin)(jin)型(xing)材为(wei)框架(jia)，玻璃(li)(li)面(mian)板全嵌(qian)入型(xing)材的(de)凹槽内(nei)。其特点在于铝合金(jin)(jin)型(xing)材本身兼有骨架(jia)结构(gou)和固定(ding)玻璃(li)(li)的(de)双重作用。

玻(bo)璃幕墙是传统的形式，应(ying)用广(guang)泛，工(gong)作(zuo)性能可靠。相对(dui)于(yu)隐框玻(bo)璃幕墙，更易满(man)足施工(gong)技术水平要(yao)求。