设计与产品rigsomelight.com
我目前居住的无框测地线穹顶
The Frameless Geodesic Dome I currently live in
2013 — 2017，它一次次回到首页
黑点是上首页（≥ 50 分）的那次投稿，空心点是没冲上去的投稿，点越大分数越高。
导读
作者详细记录了自己设计并居住的一座无框架测地线穹顶：通过数学推导将整个结构简化为仅三种板材形状，用塑料板、泡沫和螺栓搭建出带保温防水外壳的居住空间。文章展示了从失败原型到成品的完整迭代过程，并探讨了低成本、小 footprint 住房的可能性。
为什么经久不衰：它把工程师式的化繁为简思维用到住房问题上，兼具可复现的设计细节和对居住成本的思考，多年后仍是 DIY 建筑与极简设计的经典参考。
HN 评论精选
住房贵的根源是土地而非建筑，穹顶解决不了选址问题
如果你想住在城市里，真正杀死你的不是房子本身的价格，而是土地。以我所在的西雅图为例，我的房产税单显示，房子本身的价值大约只有它所占土地的一半。穹顶又不会悬浮，你还是需要一块地。所以如果你的目标是摆脱住房成本，首要问题不是“住什么”，而是“住哪儿”。
finnh查看英文原文
If you want to live in a city, it's not the cost of the house that kills you: it's the dirt. In Seattle, where I live, my property tax statement tells me that my (large, nice) house is worth roughly half as much as the land it sits on. Given that these domes don't float, you still need a place to put 'em. If your goal is to opt out of the cost of housing - an evil which this blog post expounds upon at length - your first order of business isn't so much "what to live in" but "where is it going to be".
设计理念值得欣赏，但作为住宅不符合建筑规范，尤其忽视消防员安全
作为建筑师，我欣赏这个设计表达的许多理念，尤其是追求更小的居住 footprint。但即使某些辖区因尺寸原因不要求建筑许可，它作为可居住的住宅通常仍需符合建筑规范，而它不满足现代规范的基本原则：门窗的尺寸和开启要求是为了让消防员能进出救援，结构系统有防火和锚固要求以防风暴中吹向邻屋。多数人生活在城市，住房的结构问题远比荒野里的帐篷复杂。在它可行的任何地方，二手拖车或回收材料建房可能同样可行。我欣赏这个设计和它表达的理念，只是不会为一个学术练习而激动。
brudgers查看英文原文
As an architect, I appreciate many of the ideas expressed via the design - in particular seeking a reduced footprint. However, while many US jurisdictions might not require a building permit for this structure due to its size, it would typically not be exempt from building codes and as a habitable structure and more importantly as a dwelling, the design does not meet fundamental principles embodied in modern building codes. While the principle of occupant safety is fairly obvious and its susceptibility to liberatarian objections predicable, the code embodies a further less obvious principle, that of first responder safety. Doors and windows have size and operational requirements to allow fire-fighters to get in and back out. Structural systems have structural requirements and combustibility limits for the same reason. Buildings need to be anchored to keep them from blowing into neighboring structures in a storm. Most people are urbanized, and the structural problems of housing is harder than can be solved by tents in the wilderness. Anyplace that this is a viable alternative for long term dwelling, it is likely that so is a used trailer or a building of recycled and scavenged materials. Again, I appreciate the design and the aesthetic effort and the ideas it expresses. I just can't get carried away over an academic exercise.
把设计简化到仅三种构件，体现了“简单带来巨大回报”的工程哲学
太棒了。我尤其喜欢他把复杂问题化简到极简的专注——他花了大量功夫简化设计，回报巨大：整个穹顶只由三种形状构成！正如文中所说：“这三种形状极大地简化了制造和施工，我们摧毁了穹顶的复杂性。”Rich Hickey 说过：“简单是艰苦的工作，但回报巨大。拥有真正简单系统的人，能用最少的工作产生最大的改变。”
mattjaynes查看英文原文
This is awesome. I especially love his focus on reducing the complex down to the very simple. He put a lot of work into simplifying the design and the payoff was huge - only 3 shapes make up the whole thing! From the article: "The three shapes we derived above amount to a remarkable simplification in fabrication and construction. We have decimated the complexity of the dome." "Decimated" is the perfect word for it. Here's a related gratuitous simplicity quote from Rich Hickey (of Clojure fame): "Simplicity is hard work. But, there's a huge payoff. The person who has a genuinely simpler system - a system made out of genuinely simple parts, is going to be able to affect the greatest change with the least work. He's going to kick your ass. He's gonna spend more time simplifying things up front and in the long haul he's gonna wipe the plate with you because he'll have that ability to change things when you're struggling to push elephants around." http://devopsu.com/blog/simplicity-is-key/
节点是穹顶的命门，螺栓加塑料的连接方式隐患重重；富勒的工业化路线与嬉皮士手工路线的成败对比
塑料板像屋顶瓦片一样重叠以排水并相互固定，这是对付漏水的合理做法。但整个结构靠螺栓穿透所有层来固定，外壳约两英寸半厚——这就不太好了：大量潜在漏水点，螺栓孔处应力集中，塑料可能撕裂，边缘没有密封。测地线穹顶几乎所有问题都出在节点上，而作者对节点如何工作语焉不详。富勒的构想是用工厂制造的精密部件和现代耐用材料（铝、玻璃钢）建穹顶，上世纪50年代许多雷达站穹顶至今仍矗立在加拿大北部。之后是嬉皮士用“天然材料”手工建穹顶的时代，结局不佳——《Domebook》的作者在大量失败结构后已否定自己的工作。给球面铺瓦、往穹顶上装标准窗户都行不通，接缝太多，这让测地线穹顶背了坏名声。
Animats查看英文原文
In order to shed rain and be fastened to each other, the plastic sheets overlap each other as shingles on a roof would. OK, that's good; a reasonable approach to leaks. It’s all held together with bolts that bolt through all the layers. The shell of the dome is about 2 1/2 inches thick. That's not so good. Many potential leak points. Stress concentration at the bolt holes. The plastic may tear. Nothing holding the edges together with a tight seal. Almost all the problems with geodesic domes are at the joints. The author is vague about how the joints work. Buckminster Fuller's concept for geodesic domes was that they were to be made from factory-built components and modern materials. They were to be products of the industrial age. In a factory, parts could be made to tight tolerances and be weathertight. With modern durable materials such as aluminum and Fiberglas, the domes could have long lives. During the 1950s, many such domes were built for radar stations. There are large radomes in the Canadian north abandoned decades ago, but still standing. Then came the era of hippie domes, which were built by hand from "natural materials". This did not end well. The author of Domebook I and II has repudiated his work, after a long history of failed structures. Trying to shingle a sphere does not work well. Nor does trying to fit a standard window into a dome. Nothing quite fits, and there are too many bad seams. All this gave geodesic domes a bad name. The domes in this article look like the ones from Dome Village in LA, but less rugged. [1] That was an attempt to house homeless people. The Fiberglas domes of Dome Village held up fine for 13 years; the project failed for other reasons. [1] https://en.wikipedia.org/wiki/Dome_Village
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