9尺层高与8尺层比较，欢迎讨论

[stevenw]

看到很多人都推荐9尺层高。本人认为不好。

9尺的好处就是房子看起来更宽敞、气派，不太压抑。
缺点是抗震能力至少下降了50% （本人观点）。

建议大家到建筑工地去多看看。
因为现在的建筑材料基本都是基于8尺标准的，为了达到9尺就在8尺顶上
放上了一尺的横向木材，然后用一圈钉子与下面连起来，然后上面就是隔层结构。
如此往复。这（1，2 或3）个一尺的部位将是力学上的弱点，抗扭曲及横向震动的能力非常弱。

抛砖引玉的说

 

[Cockatiel]

错了。如果你说的“1尺的横向木材”是joist，那不论几尺的房子，都得有这个，这是上一层的承重。
这边卖木头的dealer，如homedepot，标准的尺寸有8、9、10、12。。。尺，以及92-5/8 104-5/8。这2种尺寸加上top plate和bottom plate的厚度，正好是8'和9'。
如果你说的横向木材不是指joist。。。。这边人工很贵，想不出哪个builder会用拼接的方式－－费工不省料，来盖，也想不出这样的图纸会pass。

 

[没有网名]

看到很多人都推荐9尺层高。本人认为不好。

9尺的好处就是房子看起来更宽敞、气派，不太压抑。
缺点是抗震能力至少下降了50% （本人观点）。

建议大家到建筑工地去多看看。
因为现在的建筑材料基本都是基于8尺标准的，为了达到9尺就在8尺顶上
放上了一尺的横向木材，然后用一圈钉子与下面连起来，然后上面就是隔层结构。
如此往复。这（1，2 或3）个一尺的部位将是力学上的弱点，抗扭曲及横向震动的能力非常弱。

抛砖引玉的说

LZ再到建筑工地去仔细看看 ？

就像上面说的，8尺，9尺都是一根柱子，没发接的。

”抗震能力至少下降了50%“，设计也通不过呀。

 

[stevenw]

大家去现场看看8尺和9尺两种在建的房子，会发现不同的。

 

[uglyducking]

大家去现场看看8尺和9尺两种在建的房子，会发现不同的。

for homes with high ceiling living room, each stud on wall is one single piece of wood, no joints. as upper said, the labor is more expensive than using correct materials.

 

[uglyducking]

by the way, here's a picture of a 9' main floor ceiling height house under construction.

 

[没有网名]

trust me, they are the same.

For the 9' walls, there were be an extra feet OSB board on the wall, since the the OSB boards are always 4x8, but the studs are alway one piece - 104-3/8" long in this case. There is no way any builder will build a 9' wall with a 8' section + a 1' section.

If you see any difference, please post some pictures. We can have some discussion.

 

[balladmonger]

这种说法确实是说不通。
除了9尺，我相信还有10尺或者别的尺寸，如果真的像楼主说的那样。

我只能说生产木材的厂家脑袋里进水了。

 

[stevenw]

也许你们是对的，但我曾经见过两栋建筑与上述照片明显不同（加高的部分是一圈独立的木材）。
现在这两栋已完工，无法拍照了。只能以后看到类似结构取得照片再来讨论了。

 

[uglyducking]

I think it might depend on which builder, which site and which year you're looking into.

I saw minto use machine-joined 2x4 studs (not a whole solid wood, but lots of small pieces of wood glued together) in their constructions in barrheaven area. those studs are shaky when you just push a little bit on them. but my house is a minto built in year 1993, all solid wood, good materials.

也许你们是对的，但我曾经见过两栋建筑与上述照片明显不同（加高的部分是一圈独立的木材）。
现在这两栋已完工，无法拍照了。只能以后看到类似结构取得照片再来讨论了。

 

[没有网名]

I think it might depend on which builder, which site and which year you're looking into.

I saw minto use machine-joined 2x4 studs (not a whole solid wood, but lots of small pieces of wood glued together) in their constructions in barrheaven area. those studs are shaky when you just push a little bit on them. but my house is a minto built in year 1993, all solid wood, good materials.

That is a totally different thing as what LZ were talking about.

Minto used those kind of studs for a short period in late 2007 to 2008 (the first year or so after they changed to the current models).

Those lumber were made in the manufactures, they suposed to have same strength (or stronger) as the real one-piece wood (if they never got wet ). However, the house are built the exact same manner for 8' hight and 9' hight house.

 

[uglyducking]

thanks. yes it's still a single stud but machine-joined. not as lz mentioned, nail two pieces together. what i meant is, different builder may use different grade of materials. some time if there's no suitable materials on hand, and it's on a tight schedule, the subs may do something to make the necessary materials themselves, e.g. nail to piece of wood together. make a longer one

i don't believe the strength is same as a single piece of wood. i personally shook that stud and i can feel how week it was.

That is a totally different thing as what LZ were talking about.

Minto used those kind of studs for a short period in late 2007 to 2008 (the first year or so after they changed to the current models).

Those lumber were made in the manufactures, they suposed to have same strength (or stronger) as the real one-piece wood (if they never got wet ). However, the house are built the exact same manner for 8' hight and 9' hight house.

 

[uglyducking]

this is the main floor. the house has walkout basement. so it seems higher on the main floor. it's living/dinning room.

你这张似乎是两楼的.