Insulated suport for basement walls, how?
Normally a basements walls are restrained against earth pressure by the slab at the bottom and the floor above at the top. Concrete is a miserable insulator! Between the slab and footings high strength XPS (which shouldn’t be loaded above 20 PSI to avoid creep issues) appears to be applicable. But around the slab edge there is only a relatively small area (4″slab) a higher strength material is needed. It seems Foamglass doesn’t have creep issues and is available in strengths up to 300+ PSI Has anyone used it? There is a similar problem at the top of the walls as well & it seems Foamglass could be useful there as well.
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“......哪个不应该加载到20 psi以上以避免蠕变问题......”XPS可以订购100 psi，如果您相信“3x规则”，则需要33 psi。似乎房屋越来越好，较少的psi泡沫，所以也许3x规则是慷慨的，或者人们正在使用相当宽的页脚。您还可以将板块贴在边缘/页脚/地基墙壁上，并在整个内部和整个内部隔离。显然，浮动板并不总是必要的。一个结构工程师和我谈到的建造者关于这一点表示他们从未听说过浮动......有趣。
Malcolm,
当然可以设计一个地下室来不要使用楼层支撑墙壁的顶部和底部，但是对于合理的背部填充高度和墙壁长度来说，需要采用柜台或支撑，并将使用更大的进度，混凝土和加固。。常常使用楼层支撑！使用楼层可节省大量的材料，但需要延迟延迟后填充，直到上面的地板完成。平行于托梁的侧面简单地阻挡了将力传递到地板甲板上。我的问题是如何使用上面的地下室板和地板甲板来支撑墙壁并保持热隔离。
Malcolm,
This is from the 2006 IRC but the same is in the newer code.
"1805.5 Foundation walls. Concrete and masonry foundation
walls shall be designed in accordance with Chapter 19 or 21,
respectively. Foundation walls that are laterally supported at I the top and bottom and within the parameters of Tables
1805.5（1）到1805.5（5）被允许设计和
constructed in accordance with Sections 1805.5.1 through
1805.5.5."
I'm simply asking how to insulate the "laterally supported at I the top and bottom"
这是一个展示令人互感的地下室设计的链接。
http://www.basementwall.com/basement_wall_sample_project.html
Jerry, you are right, my comments are diverting you from getting the advice you asked for. I have deleted them.
deleted
I've been thinking about this myself. Why not insulate the interior of the foundation wall and also place insulation on top of the slab, and then cover that with a floor?
另外，为什么不能将垂直钢筋固定在基础上的基础上取代横向约束平板正常提供？
大卫，
“为什么不绝缘基础墙壁的内部，并将绝缘放在板上，然后用地板覆盖？”
I'm very sure this would be far more costly than other methods. It also eliminates the thermal mass of the slab from any action to stabilize indoor temperature.
“此外，为什么不能将垂直的钢筋固定钉在基础上的基础上取代平板通常提供的横向约束？”
This would take a very large amount of re bar as the compressive strength of the concrete is the limiting "weak link. A far better approach, that I've seen on many drawings, is to cast a "key way" into the footing centered under the poured wall, which when poured will create a mating key. Forming the key way may well be more expensive (labor cost) than Foamglass blocks which would also serve as a screed line for the slab.