管系支架问题

lwcs

哪儿有规范说明，管径大于多少的，必须用托，不能用拉，有出处吗？

hcs寒鱼宿雁

不知道！顶一下！占个沙发！

labilaoxin

谁家规范能这么牛逼就是集天下之大成了

4wolf728

没见过，不至于提出这样的要求吧

dazhu800

这个只有工艺吧！
原则尽量采用托支架，角钢受力，支架牢固，不太容易松。其次还要分几种情况
1，甲板反面管系支架正常都是你说的拉型支架，管卡受力，如是双层以上组合支架根据实际情况，管系第二层(Z轴大者)优先采用托式。
2，甲板正面管系支架正常都是你说的托型支架，角钢受力，如是双层以上组合支架根据实际情况，管系第二层(Z轴小者)优先采用托式。
3，横梁、舱壁等侧面管系，空间允许情况下，优先使用I字型托支架，角钢受力。如人接触的地方，因防止支架端部伤人，此时优先采用门型支架，管卡受力。
支架托为主，拉为辅，角钢折边朝下，朝左右舷，朝船尾，并且要注意防止支架三角区积污

kai0512

根据CCS共同规范及ABS 规范，还有IMO Resolution A.753(18) - Guidelines for the Application of Plastic Pipes on Ships - (adopted on 4 November 1993) - Annex - Guidelines for the Application of Plastic Pipes on Ships - 4 Installation 的要求，楼主看下关于管子支架的回答，希望对你能有用：
CCS 规范：3-2、1.6.1
1.6.1 支架
(1) 船上系统中管架的选择和间距应取决于许用应力和最大挠度。支架之间的距离应不大于管子
制造厂所推荐的距离。选择管架和间距应考虑管子尺寸、管材的机械和物理性能、管子和管内液体的
质量以及该系统可能遇到的外压、工作温度、热膨胀影响、外力引起的负荷、冲击力、水锤现象、振动、
系统能经受流体流动的最大加速度, 并应考虑到综合负荷。
(2) 每一支架的全宽范围上应均匀承担管子及其内部介质的荷重。管子与支架相接触时, 应采取
措施以减小管子磨损。
(3) 管系中的重部件, 如阀和膨胀接头应作单独支撑。
ABS 规范 4-6-3/7.1
Supports
7.1.1 Spacing
Selection and spacing of pipe supports in shipboard systems are to be determined as a function of
allowable stresses and maximum deflection criteria. Support spacing is not to be greater than the
pipe manufacturer’s recommended spacing. The selection and spacing of pipe supports are to take
into account pipe dimensions, mechanical and physical properties of the pipe material, mass of
pipe and contained fluid, external pressure, operating temperature, thermal expansion effects,
loads due to external forces, thrust forces, water hammer and vibrations to which the system may
be subjected. Combinations of these loads are to be checked.
IMO 要求：
4 Installation
4.1 Supports
4.1.1. Selection and spacing of pipe supports in shipboard systems should be determined as a function of allowable stresses and maximum deflection criteria. Support spacing should be not greater than the pipe manufacturer’s recommended spacing. The selection and spacing of pipe supports should take into account pipe dimensions, mechanical and physical properties of the pipe material, mass of pipe and contained fluid, external pressure, operating temperature, thermal expansion effects, loads due to external forces, thrust forces, water hammer, vibration, maximum accelerations to which the system may be subjected, and the type of support. The support spans should also be checked for combinations of loads.

4.1.2. Each support should evenly distribute the load of the pipe and its contents over the full width of the support and be designed to minimize wear and abrasion.

4.1.3. Heavy components in the piping system such as valves and expansion joints should be independently supported

ldx_happy@126.c

和通径没关系，通径大了 角钢可以大啊 拖还是拉 要看具体位置 受力上当然托着好啊 角钢受力

jiemi999999

大型的输油管好象是托的，没见有拉的

bien524

机舱内大管径组合支架，用拖支架，

bien524

各个船厂不一样，变态船东不一样，保险一点DN350以上

wang111hoo

看管径大小和材质

向军

见识了，根据工作区域机械区或是非机械去和介质、管材通径有一定的关系吧

向军

见识了，根据工作区域机械区或是非机械去和介质、管材通径有一定的关系吧

hopeyd2014

bien524 发表于 2014-12-21 20:08
机舱内大管径组合支架，用拖支架，

我认为DN150以上的就是要用拖支架了

lwch1984

每个项目都会有《管路工艺》，里面有详细的说明，包括支持类型、角钢尺寸选择、管夹形式选择、支撑间距等。