J****7
发帖数: 375 | 1 在地面浇捣的混凝土板，28'X20', 6"厚，钢筋网6"X6"布在板厚中间，没有在板中另加
温度钢筋，问施工时会不会产生表面裂缝？谢谢 |
l**z
发帖数: 6 | 2 算英值不灵
28'x20'=8.4x6m
6"=152mm
一般的楼面地坪尺寸，仔细施工，一般可以不裂，但是不小心施工，一般都要裂。
【在 J****7 的大作中提到】
: 在地面浇捣的混凝土板，28'X20', 6"厚，钢筋网6"X6"布在板厚中间，没有在板中另加
: 温度钢筋，问施工时会不会产生表面裂缝？谢谢
|
J****7
发帖数: 375 | 3 谁知道有什么美国的规范条款可以参考？我不熟悉啊，谢谢！
【在 l**z 的大作中提到】
: 算英值不灵
: 28'x20'=8.4x6m
: 6"=152mm
: 一般的楼面地坪尺寸，仔细施工，一般可以不裂，但是不小心施工，一般都要裂。
|
b*******g
发帖数: 1095 | |
w***3
发帖数: 938 | 5 check Chapter 7.12 in ACI318-08.
【在 J****7 的大作中提到】
: 在地面浇捣的混凝土板，28'X20', 6"厚，钢筋网6"X6"布在板厚中间，没有在板中另加
: 温度钢筋，问施工时会不会产生表面裂缝？谢谢
|
J****7
发帖数: 375 | 6 Provision 7.12 is not applied to slab-on-ground.
Thanks for your reply.
【在 w***3 的大作中提到】
: check Chapter 7.12 in ACI318-08.
|
g******6
发帖数: 782 | 7 Depending on reinforcement needs, such as for crack control or structural
strength.
Per ACI code, for most slabs on grade, position the reinforcement at one-third the depth from the top surface. If the slab is 5 inches thick or less, then position the steel at mid-depth. |
J****7
发帖数: 375 | 8 Got it, thanks.
third the depth from the top surface. If the slab is 5 inches thick or less,
then position the steel at mid-depth.
【在 g******6 的大作中提到】
: Depending on reinforcement needs, such as for crack control or structural
: strength.
: Per ACI code, for most slabs on grade, position the reinforcement at one-third the depth from the top surface. If the slab is 5 inches thick or less, then position the steel at mid-depth.
|
J***i
发帖数: 541 | 9 you should have contract joint every 12 ft. please check ACI 318 for details. I forget what is the value.
you should put your steel mesh as close as possible to the surface of your basement slab. |
J****7
发帖数: 375 | |
J****7
发帖数: 375 | 11 Contraction joint has been routinely placed, thanks for your reminding.
details. I forget what is the value.
basement slab.
【在 J***i 的大作中提到】
: you should have contract joint every 12 ft. please check ACI 318 for details. I forget what is the value.
: you should put your steel mesh as close as possible to the surface of your basement slab.
|
