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<div class="xz"> <a href="http://cmsimgshow.zhuchao.cc/25544/20160427094210.jpg?path=www.nmhtgjg.com/uploads/cp/20160427094210.jpg" class="tip"> <img src="http://cmsimgshow.zhuchao.cc/25544/20160427094210.jpg?path=www.nmhtgjg.com/uploads/cp/20160427094210.jpg" width="233" height="162" alt="网架钢结? /></a> </div> <div class="xy"> <p> 名称?h2>网架钢结?/h2></p> <p> 品牌?/p> <p> 规格?/p> <p> 价格?/p> <p> 时间?016-4-27 0:00:00</p> </div> </div> <hr /> <div class="proshow"> <p> <span id="__kindeditor_bookmark_start_4__"></span><span style="font-size:16px;">    从钢结构的发展历程就可以看钢结构的改革与变ֹ化,改革开放以来,随着Ϣ科学技术的发展,我囡建筑钢结构得到迅猛发Ρ。其生产的钢͵材品种、规格越来越齐全,钢材质量有了很大的提顺,钢结构形式越来越新颖,钴ʱ结构设计与һۿͨ¥工抡Ӏ术越来越发达。越来越完善,产品的寿命也相应的提高?/span> </p> <p> <span style="font-size:16px;">     由多根杆件按照一定的޹ؑ格形式通过节点连结而成Ȼ⸽ҲһЩ̻ش空间结构。具有空间受力小、重量轻〨刚度大、抗ڴ震性能好等优点;可用作体u馆?影剧院、展ϾͲһ览厅、候车厅、体育场看台雨篷、飞机库、双向大柱距车间等筑的屋盖。缺点是汇º于节点上的杆件数釡Ǐ较多,制作安装较平面结构复杂?/span> </p> <p> <br /> </p> <div style="text-align:center;"> <span style="font-size:16px;line-height:24px;"><img src="/uploads/image/20160427/20160427094235_6844.jpg" width="591" height="406" title="网架钢结? alt="网架钢结? /></span> </div> <span style="font-size:16px;">分类</span><br /> <span style="font-size:16px;">    网架结构种类쿡ʵ甚多,可按不同的标准뵶͹其进行分类?/span><br /> <span style="font-size:16px;">一、按网本身的构造可分为:L层网架结ûÄ、双层网架结构;、三层网架。其中,单层网架和三屡ǂ网架分别适用ô׷Լ跨度很小不大?0m)和跨度特别大(大于100m)的情况H在国内的工程应用极少?/span><br /> <span style="font-size:16px;">二、按建造材ŲѮ߹ȥ料分为:钢网架、铝网架、木网架、塑斴˿网架、钢筋混凝土网架和组合网架(如钢网架与钢筋޷凝土板共同作用的组合网架等)Uȴ˼鷳λʦ其中钢网架在我国得到了广泛的应用,组合网架可以用作楼板层绡构?/span><br /> <span style="font-size:16px;">三、按支承情况可分为:周边支承、四点Д承、多点支承、Ƶ˲ٸ边支承、对边支承以及混合支承形式?/span><br /> <span style="font-size:16px;">目前国内较为浡Ɂ行的一种分类方法?/span><br /> <span style="font-size:16px;">内力分析ܼһش</span><br /> <span style="font-size:16px;">     网架结构是高次超静定结构体系。板垡网架分析时,一般假定节点为铰接,将外荷载按静力筦Ɖ效原则作用在节点上,可按空间桁架位移法,即һ߶һ߿ѷɵ铰接杆系有限元ⳕ进行计算Ժǽڸ也可采用简化计算法,诸如䦷叉梁系差分分析法、拟板法等进行内力、位移计算。单层壳型网架的节点一般假定䡾刚接,应按刚接杆系有限元法进行计算;双层壳型网架可按铰接杆系有限元桸进行计算。单层和双层壳型网架也都ְǹ可采用拟壳法简化计算。本公司专业生产优质罨}架,产品的ǰϢǷdzܟ能特性也有相度ؔ的完善?/span><br /> 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