削斜还是焊死？有啥好处，有啥不好（见图）

daiyujin · 发表于 2007-12-11 09:51

这个是散货船舷侧纵行人孔加强筋

[ 本帖最后由 daiyujin 于 2007-12-11 09:54 编辑 ]

angerfish · 发表于 2007-12-11 10:14

当然是焊死好!如果载荷不大,削斜也可接受,个人意见最好焊死.

都市 · 发表于 2007-12-11 10:29

在人孔这里，加强筋主要是为了防止剪切变形，切成斜的有利于应力传递，因为它是沿着斜面逐步往下走，最后在趾端（一般高25到35）焊缝处往其他地方传。如果焊死，不太好，因为这样力的传递是沿着面，猛的在端部截面突变，对焊缝对结构的冲击相对大，日后可能会裂。这也就是所以很多应力集中的end connection会加bracket来过渡应力。这里不是主要为了传递力，一般不用焊死。不过也有些焊死的，因为规范也没明确说一定要是s节点。

另外，这个加强不是说必须要，看下面规范，来自JTP，但基本上应用原理都一样。

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老于 · 发表于 2007-12-11 10:52

通常能够和其他结构对接或反面有结构对应的用w节点（焊死）没有的用s节点（削斜）
如都市所说只是常见的没有规范要求

[ 本帖最后由老于于 2007-12-11 10:55 编辑 ]

surreyhorse · 发表于 2007-12-11 12:31

"另外，这个加强不是说必须要，看下面规范，来自JTP"

surreyhorse · 发表于 2007-12-11 12:32

什么是 JTP 啊？

老大？

都市 · 发表于 2007-12-11 12:35

“另外，这个加强不是说必须要，看下面规范，来自JTP，但基本上应用原理都一样。”

联合规范，油船的。我在后面说了，虽然LZ给的是散货，但这些原理都是相通的。

surreyhorse · 发表于 2007-12-11 13:04

google了一下，是不是

Joint Tanker Project 啊?

没搞过，学习了。谢谢！

Chuangong · 发表于 2007-12-11 18:18

没搞过，学习了。谢谢！

visky · 发表于 2007-12-11 19:16

JTP都不知道，竟然也是中级会员，估计你CSR也不知道吧

都市 · 发表于 2007-12-11 20:02

原帖由 visky 于 2007-12-11 19:16 发表
JTP都不知道，竟然也是中级会员，估计你CSR也不知道吧

能否请问一下，有什么规范、公约强制规定了中级会员，就应该知道JTP吗？

老于 · 发表于 2007-12-11 20:04

hehe 都市太有才了

hojmann · 发表于 2007-12-11 20:22

有指南么？？

王者到达 · 发表于 2007-12-11 21:17

那还有这样说话的VIP呢?闻道有先后,术业有专攻!不一定你懂就这样的说别人.大家是不断学习的

也许是你们两个认识,这样说话只是开个玩笑!

surreyhorse · 发表于 2007-12-12 04:28

I actually feel quite silly to talk about whether I am qualified for an intermediate membership of this forum.
I do not mind being downgrade to a newbie here, if it is considered to be necessary.
How does that sound "Visky"?

I have never worked with any oil tanker, I have been mostly dealing with AHST, Tugs, Ferries....

However, it is good to find out what JTP and CSR stand for, thanks to everybody who replied to this thread...especially "Du Shi" whos is the host of this thread I believe.

This reminds me one thing:
When I was in the university, I went to a speech given by the newly elected President of the university, I cannot remember much of what he said, but, there is something I will never ever forget.

He said your knowledge is like the area of a circle while the circumference of the circle represents what you do not know yet....The area is smaller, the circumference is smaller...you will consequently think there is no much to learn...

Hopefully we all understand what he was trying to say.

And hopefully we can all work harder to make China's ship design world class.

THANKS again to everyone who concerns about China's shipbuilding.

Sorry for not being able to type Chinese character at this moment.

都市 · 发表于 2007-12-12 09:18

Take it easy, friend.

He who always considers everything easy can not do difficult things.

Your university President is right, and his words remind me one thing as well.

One of my colleagues who is quite experienced ever told me that DO NOT EVER SAY SOMETHING IS EASY. When you say that, you have already closed a door for exploring further subconsciously. Just as people say that, the wearer best knows where the shop pinches.

Anyway, I can not agree with you more, that we make our efforts to raise our shipbuilding quality and efficiency.

At last, thank you and wish everything goes well with you in Canada.

Good luck.

visky · 发表于 2007-12-12 11:04

原帖由 <i>都市</i> 于 2007-12-11 20:02 发表
能否请问一下，有什么规范、公约强制规定了中级会员，就应该知道JTP吗？

报告斑竹，不对是SUPER斑竹，还真没这个规范和公约，看来你工作还做的不到位啊

surreyhorse · 发表于 2007-12-12 12:04

How could you tell I am not in China?
From my IP?

Not big deal anyways....as long as I am a member of this forum...

I saw the bright side of China's shipbuilding from you guys.

Cheers,

decheng · 发表于 2007-12-12 12:51

Hi , guys , clam down ... A bbs communication platform only ...
Just take what you want to get from here and realize that there are always more than one perspective on any topics ...

Doushi , can share us a copy of CSR ? Want to see see ...

visky · 发表于 2007-12-12 13:05

http://www.iacs.org.uk/publications/CommonRulePublications.aspx?pageid=4&sectionid=2
要主动并善于利用这个世界的网络资源