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class="dsite"> 您现在的位置?a href="/">首页</a> > <a href="/ip7c2i/news/">新闻信息</a> > 详细内容</div> <div class="infonn"> <div class="titlep"> <h1>钢结构设计入门及简易方?/h1></div> <div class="time"> <p> 另Ƒ布时间?019-01-09 来源?a href='/news/77.html'>/news/77.html</a> </p> </div> <div class="infop"> <p> <span style="font-size:16px;"><strong><b>内蒙古钢结构</b></strong>通常用于高层Ѿڽρ大跨度、体型复杂、荷载或吊车起重һ˱量大、有辡大振动、高ơ温车间、密封性要求高、要求能活动或㻏常装拆的结构。直观的说:超高层妷筑、体育馆、歌剧院、大桥、电视塔、工业厂房和临时建筑等。这是和钢结构自身的特点相一̾˿致的。今天华腾彩钢就带你了解一下?/span> </p> <p> <span style="font-size:16px;"><br /> </span> </p> <p> <span style="font-size:16px;">一、钢结构适用范围及选型</span> </p> <p> <span style="font-size:16px;"><br /> </span> </p> <p> <span style="font-size:16px;">1.钢结构的选型</span> </p> <p> <span style="font-size:16px;"><br /> </span> </p> <p> <span style="font-size:16px;">在钢·结构设计的整个过程中,都应该被强调的昡?概念设计",它在结构选型与布ɫ阶С段尤其重要。对一些难以作出精硩I理性分析或规范未规定的问题,可依据从整体结构}系与分体系之闻的力学关系、破坏机理、震害、试验v象和工程经验所获得的设计思想,ʱ全局的角度来确定控制ҿ构的布置及细ރ措施。运用概念设计可以在早期迅速、有效ء进行构思、比较与ǵ选择。所得结构方案往往易于手算、概念清晰、定性正确,并可避免结构分析阺˵段不必要絫е繁琐运算。同时,它也是判断计算机内力分析输出数据可靠与琦的主要依据?/span> </p> <p> <span style="font-size:16px;"><br /> </span> </p> <p> <span style="font-size:16px;">钢结构通常有框架、平?(木行)架网?(壳)、索膜、轻钢、塔桅等结构型式。其理论与技术大都成熅e。亦有部分难题没有解决,或没有ӻͳһŵή单实用的设计方法,比如网壳的稳定等?/span> </p> <p> <span style="font-size:16px;"><br /> </span> </p> <p> <span style="font-size:16px;">结构选型ơ时,应考虑它们不同的特点。在轻钢工业厂Ĵ中,当有较大悬挂荷载或移动荷载,就可考虑放弃门式ƽǚ架而采用网架。基本雪压大的地区,屋面曲线应有利于积雪满落(切?50 度内需考虑雪载),如采用三忡圆网壳。总雪载释放近一半。降雨量大的地区相似考虑。建筑允许时,在框架中布置支撡会比简单的节点刚接的框架有֪ʲôô好的经济性。而屋面覆盖跨度较大的建筑中,可选择构件受拉为主的悬索或索膜结构体系。高层结构设计中,常采用钢混凝土组合结构,在地震烈度高或很不规则的髲ȥ˾层中,不应单纯为了经济去选择不利抡震的核心筒加外框的形式。宜选择周边巨型 SRC 柱,核娐为支撑框架的结构体系。我国半数上的此类高层为前者。对抡震不利?/span> </p> <p> <span style="font-size:16px;"><br /> </span> </p> <p style="text-align:center;"> <span style="font-size:16px;"><img src="/uploads/image/20190109/20190109141904_1704.jpg" alt="钢结? width="450" height="300" title="钢结? align="" /><br /> </span> </p> <p style="text-align:center;"> <span style="font-size:16px;"><br /> </span> </p> <p> <span style="font-size:16px;">结构的布置要根据体系特征,荷载分布郅况及性质等综合٢ـ虑。一般的说要刚度均匀。力学模型清Խת。尽可能限制大荷载或移动荷载的影响范围,使Ҳ͸ⅶ以最直接的线路传递到基础。柱闡抗侧支撑的分布应均匀。其形心要尽量靠近侧向力 (风震)ϲú˷的作用线。否则应考虑结构的扭转。结构的抗侧应有多道防线。比如有攳ҭŨد撑框架结构,柱子至少应能单独承?1/4 的总水平力〡?/span> </p> <p> <span style="font-size:16px;"><br /> </span> </p> <p> <span style="font-size:16px;">框架结构的楼层平面次梁的布置,有时可以调整其荷载传Ƽȭ方向以满足不同皡要求。通常为了减小截面沿短ǧ1Ʊ布置次梁,但是这会使主梁截面加大,减少了楼层净高,顶层边柱也有时会吃不消,此时把次梁支撑在较短Ӱ的主梁上可以牺牲次梁保住主梁和柱子?/span> </p> <p> <span style="font-size:16px;"><br /> </span> </p> <p> <span style="font-size:16px;">2.钢结构浫һȴ件的截面选取</span> </p> <p> <span style="font-size:16px;"><br /> </span> </p> <p> <span style="font-size:16px;">结构布置结束后,需对件截面作初步估算。主要是梁柱和支撑等的断面形Լͻ与尺寸的假定?/span> </p> <p> <span style="font-size:16px;"><br /> </span> </p> <p> <span style="font-size:16px;">钢梁可选择槽钢、轧制或焊接 H 型钢截面等。根据荷载与支座情况,其䵱в֪ж截面高度通常在跨度的 1/20~1/50 之间选择。硺缘宽度根据梁间侧向支撑的间距?l/b 限值确定时,可回避钢梁的整稳定的复杂计算,这种方法娈受欢迎。确定了截面高度和翼缘宽度后,其板»厚度可按规范中局部稳定Ӛ构造规定预估?/span> </p> <p> <span style="font-size:16px;"><br /> </span> </p> <p> <span style="font-size:16px;">柱截面按长细比预估。通常 50<λ<150,简单选择â值在 100 附近。根据轴心受压、ӏ向受弯或卻向受弯的不同,可选择钢管?H 型钢截面等?/span> </p> <p> <span style="font-size:16px;"><br /> </span> </p> <p style="text-align:center;"> <span style="font-size:16px;"><img src="/uploads/image/20190109/20190109141937_6760.jpg" alt="钢结构厂宨? width="503" height="300" title="钢结构厂? align="" /><br /> </span> </p> <p style="text-align:center;"> <span style="font-size:16px;"><br /> </span> </p> <p style="text-align:center;"> <span style="font-size:16px;"><br /> </span> </p> <p style="text-align:center;"> <span style="font-size:16px;"><br /> </span> </p> <p style="text-align:center;"> <span style="font-size:16px;"><br /> </span> </p> <span style="font-size:16px;"></span> </div> <div class="relatv"> 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