双层玻璃幕墙的优缺点有哪些

2025-01-21 21:33:08
推荐回答(2个)
回答1:

优点:
隔声:双层玻璃幕墙由于外皮对于噪声的屏蔽作用,降低了室外噪音对于室内的影响。对城市中心区的,处于很强的交通噪音环境中的建筑尤其适宜。同时,双层玻璃幕墙可以在强噪音环境中,仍然可以引入自然通风,降低了建筑能耗。
保温:在冬季,外层幕墙的存在加强了外围护结构的保温性能。通过双层玻璃幕墙之间空气的预热可以有效的降低建筑表面的热损失。而且由于内层幕墙温度相对较高,有利于室内的热舒适性。
夜间通风降温:在炎热的夏季,遮阳伞建筑内部温度有可能过高。而双层玻璃幕墙并不是以直接开启方式通风,因而具有安全保护功能,这使得在夏季夜晚下班时间办公楼可以利用夜间凉爽空气,以自然通风的方式进行室内降温。

双层玻璃幕墙的遮阳百叶安装在夹层内部,相对单层玻璃幕墙外挂百叶方式,这种方式更有利于保护百叶,尤其是某些功能复杂、造价昂贵的金属百叶,日晒雨淋不仅会减短使用寿命,也会影响其遮阳及反射效果。此外,外挂百叶往往产生环境噪音,由日本著名建筑师祯文彦设计的,位于德国慕尼黑郊外的高技术园采用了外挂式金属百叶,在微风中整日鸣响不已,而在双层玻璃幕墙间设置的百叶就没有这种问题。
因外层幕墙的存在,降低了建筑内部的风压,以那热使得高层建筑中部分自由开窗通风成为可能,仅此一项便可大大降低高层建筑中机械通风所需的能耗。在建筑设计上,双层玻璃幕墙由于使用大面积的玻璃,使建筑获得很高的通透性。
自然通风:双层玻璃幕墙一项很重要的优点就是可以允许自然通风。自然通风方式不但可以降低空调能耗,而且有利于提高环境的舒适性,增强人体健康。双层玻璃幕墙间层可以作为防火通道使用。
节能:由于双层玻璃幕墙提高了建筑保温隔热性能,而且遮阳伞能够较长时间的进行自然通风,所以使建筑可以充分节省能源,降低能耗。

缺点: 相对于普通建筑,其外围护结构的造价增加1.5-2倍。
夏季,在强烈的阳光照射下,夹层空气中往往温度过高,尤其是当双层玻璃幕墙之间间隔太小而遮阳效果不佳时,其温度有时会超过室外温度,使得通过开窗获得自然通风无法实现。
建筑幕墙的清洁和维护费用增高。双层玻璃幕墙基于对当地气候以及高层建筑特殊的高空环境的考虑,在具备最基本的使用功能的同时,遮阳伞还对外界的

不良气候和环境的影响有缓冲和削弱的作用,能够最大限度的降低对不可再生能源的依赖。这种设计思路和出发点对节约能源、创建一个可持续发展的未来必将具有深远的意义。
来源:大猫网

回答2:

优点安全,缺点就是重价格很贵

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