轻钢资料《转角悬挑汇总》
根据牛顿的万有引力定律,重力G等于物体质量m乘以物体的重力加速度g即G=mg也就是说我们之所以可以停留在地球上而没有被甩到宇宙空间的原因。
当物体的重力加速度不变时,重力的大小取决于物体的质量。
当质量越大时引力越大。
而反重力系统就是给物体一个反作用力。
当这个反作用力大于物体的重力时,这个物体就可以脱离地球的引力。
在一定重力与反重力之间达到平衡时。
就可以悬浮在大气层与地表之间。
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自从英国科幻小说作者威尔斯描述了“反重力”(能够屏蔽重力影响,使宇宙飞船飞向月球)后,反重力已经成为人类一个多世纪的梦想。
如果反重力是确实存在的,它必将改变整个世界。
汽车、火车、轮船,所有你能想到的交通系统,都能通过从引力场中获取的能量驱动。这一会改变世界科学界和航空航天界禁忌的反重力研究,再次受到人们的关注,因为有消息说世界上最大的飞机制造商波音公司正在探索一些新概念,这些新概念可能在将来某一天彻底改变一个世纪来的推进技术。
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1992年,任职于芬兰坦佩雷技术大学的波德克列特诺夫向一家英国物理学杂志提交了一篇论文,他描述了被置于高速旋转的超导体(极低温度时失去电阻)上面的一个物体如何失去将近2%的重量。这篇论文泄漏给了一家报纸。
一来因为它涉及禁忌的“反重力”概念,二来因为它在主流物理界掀起了轩然大波,波德克列特诺夫被学校开除了。
但这位俄罗斯人的研究吸引了美国国家航空航天局的注意,该局早已同亨茨维尔亚拉巴马大学的一位研究员有联系,这位研究员宣称她能制造出一种类重力场,能够利用高速旋转超导体排斥或吸引物体。
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作为万能的结构体系
下面看看轻钢怎么挑战《反重力》
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比利时
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澳大利亚某项目,细胳膊细腿
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印度
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飞碟失败?完成后还是加了很多支撑
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澳大利亚
下面这个很经典,用了好几种形式
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印度
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欧洲某项目
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单面出挑比较简单,碰到两面出挑怎么解决?
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澳大利亚
悬挑4米,89龙骨,没有用热轧钢做辅助。
这个是目前见到的有数据的最大悬挑长度。
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带有空气流通层的屋面
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澳大利亚一个小型shopping mall
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比利时一个双面出挑的屋面
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蒙古
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某展会悬挑雨棚
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吉布提国际学校
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一个自行车棚,经典
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南美
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蒙古
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南美
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中国
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大跨度屋架直接出挑
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还带有一个小天井
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南非
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各种加强钢带,设置的很科学
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澳大利亚 珀斯
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伊斯坦布尔,有点类似斗拱的出挑
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巴西
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印度
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南非
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中国
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美国
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哥斯达黎加
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思想有多远,
咱就能挑多远。
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