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PSU的Econ如何？

PSU的Econ如何？# Economics - 经济

x*y2010-01-11 08:01

1 楼

我北京的家里有我儿时录音的磁带和一家人出去玩时的录象带（大概15年前的录象机拍
摄的）。我今年夏天回北京准备把这些都转成电脑可读的格式，如MP3，REALONE。有
哪位知道好不好转？应该用什么软件和硬件，能否网上下载？或者北京象中关村这样
有卖电脑音像的店可以帮忙转？谢先！

R*n2010-01-11 08:01

2 楼

Dear Friends:
Does "gravity floor framing" means the slabs without beams connected to the
columns directly?
Thank you.
Rick

E*a2010-01-11 08:01

3 楼

处女贴献给本版。年初拿到了psu的offer，不知道它的学术如何？目前还没其他学校的
消息。

p*w2010-01-11 08:01

4 楼

录音带可以看开有没有 Line Out 输出。现在有些 mp3 有 line in接口可以录音。
录像带就要看现在输出信号是什么了

【在 x*****y 的大作中提到】

: 我北京的家里有我儿时录音的磁带和一家人出去玩时的录象带（大概15年前的录象机拍
: 摄的）。我今年夏天回北京准备把这些都转成电脑可读的格式，如MP3，REALONE。有
: 哪位知道好不好转？应该用什么软件和硬件，能否网上下载？或者北京象中关村这样
: 有卖电脑音像的店可以帮忙转？谢先！

R*n2010-01-11 08:01

5 楼

Up

the

【在 R**********n 的大作中提到】

: Dear Friends:
: Does "gravity floor framing" means the slabs without beams connected to the
: columns directly?
: Thank you.
: Rick

t*y2010-01-11 08:01

6 楼

天呢, PSU这么早就发AD了?

n*b2010-01-11 08:01

7 楼

I don't think so.

the

【在 R**********n 的大作中提到】

: Dear Friends:
: Does "gravity floor framing" means the slabs without beams connected to the
: columns directly?
: Thank you.
: Rick

c*u2010-01-11 08:01

8 楼

PSU好像是有名的两极分化学校吧?

R*n2010-01-11 08:01

9 楼

谢谢你的回复，那你觉得应该怎么理解呢，感觉这个建筑的层高很低，只有 9ft，所
以想建筑师应该会推荐无梁楼板系统，无梁楼板的英文应该如何表达呢？
谢谢！

【在 n**********b 的大作中提到】

: I don't think so.
:
: the

n*b2010-01-11 08:01

10 楼

well, it depends on the load and span.The architect may define the clear
hight requirement. The "slab without beams or drop bands" is what you want
to know?
Actually, it doesn't matter. I think it might be a residential building. If
the span is larger than 30 ft, you may consider the Post-Tensioned (PT)
slabs with 8'' or 9'' thickness.

【在 R**********n 的大作中提到】

: 谢谢你的回复，那你觉得应该怎么理解呢，感觉这个建筑的层高很低，只有 9ft，所
: 以想建筑师应该会推荐无梁楼板系统，无梁楼板的英文应该如何表达呢？
: 谢谢！

t*o2010-01-11 08:01

11 楼

Your question is so confusing. You should give more background information
for more accurate answer.
Simple answer will be: Floor framing only take gravity load. For wood floor,
that will be floor joist or floor truss member. For concrete floor, it
might be floor beam or joist members only taking gravity load.

the

【在 R**********n 的大作中提到】

: Dear Friends:
: Does "gravity floor framing" means the slabs without beams connected to the
: columns directly?
: Thank you.
: Rick

R*n2010-01-11 08:01

12 楼

Thanks a lot for your in depth explanation. Yes, as you said, I looked Table
9.5 of ACI 318, and it seems that for 8 inches slabs without interior beams
, the largest span can go to 20 ft for exterior slabs and 22 ft for interior
slabs.
Have a nice day.
Rick

If

【在 n**********b 的大作中提到】

: well, it depends on the load and span.The architect may define the clear
: hight requirement. The "slab without beams or drop bands" is what you want
: to know?
: Actually, it doesn't matter. I think it might be a residential building. If
: the span is larger than 30 ft, you may consider the Post-Tensioned (PT)
: slabs with 8'' or 9'' thickness.