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50px;"> 宁夏快三下载安装 < id="fullcontent_opacity" style="width: 100%;height: 100%;position: absolute;left: 0;right: 0;top: 0;display:none;"> < id='layerAAC909DF448468DD6139F3B1C78EEE42' type='article_detail' class='cstlayer' style='left: 0px; top: 700px; position: absolute; z-index: 104; width: 1100px; height: 459px;' mid="" deg='0'>< class="wp-article_detail_content" style="border-color: transparent; border-width: 0px; overflow: hidden; width: 1100px; height: 459px;"> < class="artdetail_title" style="display:block;font-family:Microsoft YaHei;font-size:16px;color:#fd0000;font-weight:bold;text-decoration:none;">窗户坠落“元凶”起底,硬核技术破解来了! < class="artview_info" style="display:block;font-family:Microsoft YaHei;font-size:14px;color:#5A5A5A;font-weight:normal;text-decoration:none;"> < class="sourcedata"> 来源: | 作者:ahhyly | 发布时间: 2020-11-21 | 433 次浏览 | 分享到: < class="bdsharebuttonbox shareshow bshare-custom"> < class="artview_intro" style="display:none;"> < class="artview_content" style="display:block;font-family:Microsoft YaHei;font-size:14px;color:#5A5A5A;font-weight:normal;text-decoration:none;"> < class="artview_detail" setsid="article44">



< style="color: rgb(51, 51, 51); font-family: syht; font-size: 28px; white-space: normal; text-align: left;">     近年来,窗户坠落事故常常见诸新闻,时不时成为社会热点事件。窗户坠落有哪几种形式,原因是什么,又有哪些黑科技可“破局”呢?百度搜索“窗户坠落”,可检索到1200万条相关网页,可见窗户坠落问题社会关注度有多么高。 < style="text-align: left;">

< style="text-align: left;">     我们要明确,通常大家所说的“窗户坠落”是个笼统的概念,从专业角度我们需要具体问题具体分析,明确区分窗户坠落、窗扇坠落、玻璃幕墙坠落、玻璃自爆坠落等,才能有针对性的找到破局之道。 < style="text-align: left;">
1、如何区分窗户坠落、窗扇坠落、玻璃幕墙坠落、玻璃自爆坠落?
< style="text-align: left;">     通常所说“窗户坠落”从专业角度可区分为窗户坠落、窗扇坠落、玻璃幕墙坠落、玻璃自爆坠落等,那么这几种情况有什么区别呢? < style="text-align: left;">
窗户坠落
< style="text-align: left;">     严格来讲只有窗户整体脱落才能称之为窗户坠落,当然这种情况近年来多见于阳台窗。
< style="text-align: left;">
< style="text-align: left;"> 窗扇坠落 < style="text-align: left;">     与窗户整体坠落不同的是,窗扇坠落是窗扇与窗框连接失效导致坠落,多见于外开窗扇和推拉窗扇。 < style="text-align: left;">
< style="text-align: left;"> 玻璃幕墙“窗户坠落” < style="text-align: left;">     玻璃幕墙“窗户坠落”主要有两种情况:幕墙玻璃自爆脱落和开启扇脱落。

< style="text-align: left;">     幕墙玻璃自爆脱落主要与钢化玻璃本身所含硫化镍杂质颗粒有关,与玻璃材料质量密切相关;玻璃幕墙开启扇坠落与开启扇五金构造、日常维护保养不到位相关。 < style="text-align: left;">
< style="text-align: left;"> 2、哪些黑科技可以破局“窗户坠落”呢? < style="text-align: left;">     前面我们讨论了“窗户坠落”常见的5种形式和主要原因,门窗幕墙行业企业也给出了不同“破局”黑科技,我们来看看吧。 < style="text-align: left;">
外开窗扇坠落“破局”之道
< style="text-align: left;">     先来聊聊外开窗扇坠落的“破局”之道吧。由于外开窗扇坠落主要是五金连接问题,因此行业从五金角度提出了“破局”之道——平开窗防坠链,见下图。
< style="text-align: left;">
< style="text-align: left;">     采用直径3mm的优质高强钢丝绳将窗框和窗扇进行再次连接。钢丝绳可承受3000N以上静止拉力,可承受80kg窗扇自由坠落的冲击,从而在一定程度上防止五金失效时外开窗扇坠落。 < style="text-align: left;">
< style="text-align: left;"> 推拉窗扇坠落“破局”之道 < style="text-align: left;">     前文述及,推拉窗扇为了安装方便需要较深的顶部插口,而滑轮磨损进一步加大了该插口,从而导致大力推拉窗扇、擦洗窗扇时,或在大风天气下窗扇易从底部轨道脱落而发生坠落事故。 < style="text-align: left;">     有没有简易方法保证推拉窗扇不脱落呢?有的,那就是采用防脱落固定片,见下图。
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< style="text-align: left;">     推拉窗扇安装后,采用防脱固定片将推拉窗扇顶部活动间隙控制在1~2mm,从而保证了推拉窗扇在用力擦窗或大风作用下仍然安全不脱轨。 < style="text-align: left;">
玻璃自爆坠落“破局”之道
< style="text-align: left;">     玻璃自爆是困扰玻璃行业、门窗幕墙行业的一大难题,是不是就没有办法“破局”呢?答案显然是否定的。 < style="text-align: left;">     从原材料角度,国内开发出了超白玻璃,可大大降低钢化玻璃自爆率。 < style="text-align: left;">     从钢化过程看,均质处理可大大降低钢化玻璃自爆率; < style="text-align: left;">     从工程应用角度,高层、超高层建筑外片玻璃可采用钢化夹层玻璃替代单片钢化,从而降低钢化玻璃自爆后随时坠落的风险。 < style="text-align: left;">
< style="text-align: left;"> 幕墙开启扇坠落“破局”之道 < style="text-align: left;">     前文提到幕墙开启扇坠落与日常维护保养不及时不到位、使用过程及大风天气中大力开关密切相关,尤其是大风天气下幕墙窗扇未关闭时更易发生脱落。 < style="text-align: left;">
    那么,有没有一种窗户在风力达到一定级别时能自动关闭呢?有的。
< style="text-align: left;">     悬窗自动锁闭五金系统使用气动定位撑装置以及双滑块特殊多连杆结构,可根据不同通风量需求,任意调节窗扇开启角度,当受外力、风力高于6级时,可实现自动锁闭功能,从而降低幕墙开启扇坠落可能性。 < style="text-align: left;">     除了技术层面,日常维护保养及时、到位绝 对是防止幕墙开启扇坠落的有效手段。前文提及的螺钉松动、锁座脱落等看似无关紧要的小问题,恰恰潜藏着门窗幕墙开启扇坠落的重大安全隐患。 < style="text-align: left;">     因此,向物业人员普及门窗幕墙安全知识,做到对门窗幕墙及时到位的保养也是“破局”开启扇坠落的重要途径。 < style="text-align: left;">
< style="text-align: left;"> 窗户整体坠落“破局”之道 < style="text-align: left;">     窗户整体坠落主要是施工方未对门窗风压安全性有足够的认知,不知道门窗安装规范或未严格按照规范要求安装导致的,因此普及门窗安全性知识和相关标准规范是防止窗户整体坠落的“破局”之道。 < style="text-align: left;">     风压安全如前所述,不同地区、不同高度、不同部位建筑物的风荷载差异巨大,不同尺寸窗户抗风压性能差异较大;门窗抗风压性能和建筑物风荷载匹配是保证门窗风压安全的基础。 < style="text-align: left;">     门窗安装固定点应符合相关标准的规定。以JGJ214-2010《铝合金门窗工程技术规范》为例,干法安装的铝合金门窗固定要求如下:
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< style="text-align: left;">     标准上有明确要求,但如何让门窗施工方,尤其是“路边摊”去了解和遵守标准却是很困难的。如何让用户了解好门窗和好的门窗企业同样是任重道远。 < style="text-align: left;">
< style="text-align: left;">



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