玻璃幕墙(qiang)，是(shi)指由支(zhi)承(cheng)结(jie)构(gou)体(ti)(ti)系可相对主体(ti)(ti)结(jie)构(gou)有一定位移能力、不分担主体(ti)(ti)结(jie)构(gou)所(suo)受作(zuo)用的建(jian)筑(zhu)外围护结(jie)构(gou)或装饰(shi)结(jie)构(gou)。墙(qiang)体(ti)(ti)有单(dan)层和双层玻璃两种。玻璃幕墙(qiang)是(shi)一种美(mei)观(guan)新颖的建(jian)筑(zhu)墙(qiang)体(ti)(ti)装饰(shi)方法，是(shi)现代(dai)主义高层建(jian)筑(zhu)时代(dai)的显(xian)著(zhu)特征。

功能作用

现代化高层(ceng)建(jian)筑(zhu)的玻(bo)(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)幕墙采用了(le)由(you)(you)镜面玻(bo)(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)与普通玻(bo)(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)组合，隔(ge)层(ceng)充入(ru)干(gan)燥空(kong)(kong)(kong)(kong)气(qi)或惰(duo)性气(qi)体的中(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)。中(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)有两层(ceng)和三(san)(san)层(ceng)之分，两层(ceng)中(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)由(you)(you)两层(ceng)玻(bo)(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)加密封框架(jia)，形成一(yi)个夹层(ceng)空(kong)(kong)(kong)(kong)间；三(san)(san)层(ceng)玻(bo)(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)则是由(you)(you)三(san)(san)层(ceng)玻(bo)(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)构成两个夹层(ceng)空(kong)(kong)(kong)(kong)间。中(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)具有隔(ge)音、隔(ge)热(re)、防结霜、防潮、抗(kang)风压强度(du)大等(deng)优点。据测量，当室外(wai)温度(du)为－10℃时，单层(ceng)玻(bo)(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)窗前的温度(du)为－2℃，而使用三(san)(san)层(ceng)中(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)的室内温度(du)为13℃。而在炎(yan)热(re)夏天，双层(ceng)中(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)可以挡(dang)住90的太(tai)阳辐射热(re)。阳光依(yi)然可以透(tou)过玻(bo)(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)幕墙，但晒(shai)在身上大多不(bu)会感到(dao)炎(yan)热(re)。使用中(zhong)空(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)幕墙的房间可以做到(dao)冬(dong)暖夏凉，很大地改善了(le)生活环(huan)境。

基本分类

框支撑玻(bo)璃(li)幕墙(qiang)是玻(bo)璃(li)面(mian)板周边由金属框架(jia)支撑的玻(bo)璃(li)幕墙(qiang)，主要包括：

玻璃(li)幕(mu)墙是金属框架(jia)(jia)构(gou)件显露在(zai)外表面的玻璃(li)幕(mu)墙。它以特殊断面的铝合金型材为框架(jia)(jia)，玻璃(li)面板(ban)全嵌(qian)入(ru)型材的凹槽内(nei)。其特点在(zai)于(yu)铝合金型材本身(shen)兼有骨(gu)架(jia)(jia)结(jie)构(gou)和固定(ding)玻璃(li)的双重作用。

玻璃幕墙(qiang)是传统的形式，应用广泛，工作性能可靠。相对于隐(yin)框玻璃幕墙(qiang)，更易满足施(shi)工技术水(shui)平要求。