关于NON SUSPENDED SLAB

y2vlim82

NON SUSPENDED SLAB如何DESIGN？
是不是provide min steel就可以了？

有说在什么soil condition之下不能够采用的吗？
例如soil bearing低于一定的value或其他的soil properties。

有谁有non suspended slab的detail drawing？
可以e-mail给我吗？最好是autocad file的，
y2vlim82@hotmail.com.


谢谢！

NBD8669

原帖由 y2vlim82 于 26-4-2007 03:51 PM 发表
NON SUSPENDED SLAB如何DESIGN？
是不是provide min steel就可以了？

有说在什么soil condition之下不能够采用的吗？
例如soil bearing低于一定的value或其他的soil properties。

有谁有non suspended  ...

在CUT的AREA，我们都会用NON SUSPENDED SLAB的。用什么BRC都DEPEND ON 什么LIVE LOAD的，像是住家的，用A5已经可以了。

lmflamingo

你可以用Concrete Society Technical Report No.34, ‘Concrete Industrial Ground Floors Design and Construction'. 来算。。 如果懒惰可以看BRC manufacturer给的handbook, 后面几面有跟你讲什么loading就可用几厚的slab和什么size的铁。。 我就是懒惰的那个。。 NON SUSPENDED SLAB记得给isolation joint, expansion and contraction joint.

GP664

BRC manufacturer给的handbook?

lmflamingo

就是接绍他们产平的书咯。。。   也可以说是katalog

GP664

哪一间公司的？怎么没看过？

lmflamingo

最常见得是southern steel 咯。。

老夫子

non suspended slab

supproted on the soil

provide min steel bar

不行吗？

[ 本帖最后由 老夫子 于 8-9-2008 01:52 PM 编辑 ]

staadpro

non suspended slab不需要check soil bearing吗？

Radeon1984

回复 3# lmflamingo

What mean by non suspended slab and
suspended slab??

I new in construction.

Thank

Dragoon

回复 10# Radeon1984

对不起不会用华文解释.

Non suspended slab is slab rest directly on the soil, without any structural beam / wall / drop panel supporting it.
It is simply depends on the bearing capacity of the soil itself to support the soil.
If under certain circumstances where the soil below moves / erodes / settle, the slab will sink and cracks occurs around interface between suspended structure and non suspended structure.


While suspended slab (直接翻译：浮着的板) is slab supported by beam / wall / drop panel.
It doesn't depend on surrounding soil to support the slab therefore even if there's soil movement below there's no effect onto the slab.

希望帮到你

Radeon1984

回复 11# Dragoon

the typical structural for high rise buiding have suspended slab and non-suspended slab also. how to say the slab rest on soil?  the diferrence only is rebar detail right?

Dragoon

The slab of typical storey in high rise superstructure confirm is suspended slab. Suspended slab have beam / drop panel to support it. (就是有其他柱子，横梁支撑着的板）
Reinforcement detail in suspended slab have more bottom bar at mid span, and top bar at support.

While for non suspended slab, they must be in contact with soil as they are supported by soil (坐在泥土上面，就好想你把一片板放在泥土上面江). The reinforcement I usually only provide As minimum to comply with BS requirement.