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第章254 模块化建造(2 / 2)

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如果单纯的说原理还不是很清楚,那做个实验就能明白,把五个快餐盒叠加在一起,用电风扇吹,一定是最顶端的一两个快餐盒先被吹歪,风力再打一点,就会被吹的散落一地,但如果在快餐盒中心挖个洞,穿一根筷子进去,这样一来,风力再大,这套在一起的快餐盒也不会有什么变化,除非风力大到能将五个快餐盒一起吹飞。

吹飞五个快餐盒很简单,但想要吹飞一座二十米的木塔,那可就没那么容易了。何况快餐盒本身没有根基,吹飞并不难,但木塔有塔基,而且是结构非常稳定的须弥座式塔基,这种塔基能很好的化解塔身摆动时造成的压力,从而确保塔身的稳定性。

绳金塔为什么能屹立三百余年而不倾塌,是没有遭遇过强风?还是没有遭遇过强震?

很明显,是这种结构确保了绳金塔数百年的寿命。

这种结构,在现代建筑学中叫做柔性结构,从最简单的榫卯结构,到须弥座式塔基,再到重重叠加镶嵌的模块式塔身,以及屹立在塔身中心的通心柱,都贯彻着这样一个原理。

这种原理在现代化的建筑中使用非常广泛,那些高楼大厦看上去是钢筋水泥,但实际上很多关键部位的构造跟这五重木塔类似,在建造的时候就预留了建筑在受力时发生的形变空间。

说的直白点,这种柔性结构就像一根柳枝,在遭遇强风时会随风摆动,但风一停又能恢复原状。

古人或许不懂这么多物理知识,但通过他们的日积月累不断摸索,用实践摸索出这样一种科学而且实用的营造法式。

通心柱立了起来,塔身的搭建就很快了,一件件事先制作、雕刻好的构件被安装上去,就像是在搭积木一样,不到三天时间,这座五重木塔就成型了,虽然还需要进行一些简单的修饰,但工作量并不大。

当撤掉脚手架的那一刻,一挂十万响的鞭炮“噼里啪啦”的在塔前响起。

等鞭炮声停下,他朝丁树怀一伸手,做了个“请”的姿势,“丁老,请您检阅。”

“你也请,你也请,”丁树怀望着面前这座高达二十米的五重木塔,显得很是激动。二十米,对那些动则二三百米的高楼大厦来说不算什么,但对这些古法营造专家来说,却是一个不大不小的奇迹。

更重要的是,这塔是他跟徐景行这两个外行设计建造的,在这之前,两个人都没有这方面的经验。因此看到这座庄严大气的五重木塔像根巨大的柱子一样耸立在小岛中央时,心情便不受控制的激动起来。

当然,这塔到底安全不安全,美观不美观,观景效果如何,这还需要检验和检查,安全因素更是重中之重,不然的话,这塔拆掉也罢。

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