管线综合支吊架实施做法的案例分享 [课程编码2265]

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来源网络整理，如有侵权联系删除dmivkmdnryyhtvwmvavagbohpzxv

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源于山西四建集团赵鹏，分享管线综合支吊架做法案例，供大家参考借鉴。本工程机电专业包含30余个系统，管廊管线多达36支，参建单位多、操作水平良莠不齐。若所有参建单位各自为政、只考虑各自负责专业管线施工，缺乏统一协调管理，必然导致现场凌乱无章，将严重影响施工质量。xkfjtlxzxocxjdytqiujnqoylnildbcgufqmczhcunjwtw
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有无综合支架效果对比ltidicjbqmwoythaedqjzvzvcho

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管线综合支吊架实施做法的案例分享iadfphfnrueodlcnejpfbabiosoepvqnt

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无综合支架VS有综合支架qonzxotovtollkeztvyzagevy

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. m+ j6 m3 d$ `为此，项目部运用BIM技术对所有机电管线进行综合排布、策划综合支架方案，并承担本工程综合支架施工。_{oodmjanooozrysmnikvmvvrzqnnbtvbleosyaxjwrt}
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（一）hadezboxcmqfevjry

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管线综合排布qhqbsvilhhonglceenkzmoriea

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+ w. }2 E/ x) t2 [; @7 J运用BIM技术辅助进行管线综合排布。

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示例1：此处共有管线36支，层叠密集，综合排布后共分8层，整齐美观。

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管线综合支吊架实施做法的案例分享oaupkofusdldwcpbbyikgzibosnwhwhwbckje

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III区2层管线综合排布

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示例2：此处管线纵横交错，标高重叠，碰撞频繁，综合排布后井然有序。kqobxfsehjqwdyiunlvvhhhqvxwlogtqizpxvfwti
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管线综合支吊架实施做法的案例分享oxrcbuhmaxjuiaghepvitsvdzpirrgjemqydghdvf

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VI区3层管线综合排布kjqekvqaoyhiw

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本工程管线综合排布原则：

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! `# L; @$ ?, z0 d4 h1）预留安装维修空间；

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2）小管让大管、有压管让无压管、低压管让高压管；cqjrjdwrrdbhdbfqosvsnojwtcvsenswergqgboydbuckme
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$ w/ p6 Z- y# Q9 f" H: ]- y5 E3）行程长的管线在上层，行程短的管线在下层；_{qcplfydufvlrkhlhzmzgtchwrlhduzvksavisztummtgisheym}
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4）管线阀门并列安装时考虑阀门及法兰保温后的间距；nevheyqmretptazktdp
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, t! w) c4 A7 w3 S6 A5）金属导管和金属槽盒敷设在蒸汽管下方，不小于0.5m，在上方时不小于1.0m；soxznhulzjdcigxwrkcheqliiwcfhnbswapzxjslqtpm
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6）通信桥架与其他桥架水平间距至少300mm，垂直间距至少300mm，防止磁场干扰；_{xjdztqsglqnqhg}
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3 n. }5 r9 W1 g+ Z6 Y6 V; {, W7 L7）最上层桥架槽盖开启面至少保持50mm垂直净空。lvykcuscwxckut
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（二）

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选型计算hadezboxcmqfevjry

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以II区2层为例，依据管线综合排布策划综合支架方案。isastbxitaxltjeyhmrdsddexdldcranccp
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管线综合支吊架实施做法的案例分享llsdztdrdetpiodcuhiogurbqzkcgpmlnaubdsutqqsot

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II区2层管线综合排布

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. [: r0 i: |+ C0 h" e4 T+ t2 E1.初步选择支架型钢，策划综合支架方案，创建支架三维模型。

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管线综合支吊架实施做法的案例分享

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9 t* c: n$ d( y9 |2 J* x4 x/ }2.计算每处节点受力（=管道自重+满水水重+保温层重+保护层重），管道长度按4.5m计算。odntnobxkvjhytsexpopmtdehb

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管线综合支吊架实施做法的案例分享szybugndecchg

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- u  F: B2 V& Q! k3.对支架进行受力分析。

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支架下三层占整体质量的95.5%，为方便计算，以下三层为模板创建力学模型。ogwnfwigswnxcnqifeytcxvrsjxzu
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管线综合支吊架实施做法的案例分享

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4.拟定计算参数。

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1）荷载放大系数：1.5；受拉杆件长细比限值：300；受压杆件长细比限值：150；横梁挠度限值：1/200。

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2）设计资料wjbtjtjsxwndokiyyql
/ L4 B/ G7 z. x, X; k( {材质：Q235-B；fy=235.0N/mm²；f=215.0N/mm²；fv=125.0N/mm²；梁跨度：l0=3.51m；梁截面：[16b；强度计算净截面系数：1.00。yppstlyoisirhquqbxubmsessowznaieavjitnaqrsrmabus
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3）参考标准与规范：xezuspwkuibtmntvcjwvaiwcuntyjt
; _% S% x6 T1 r《建筑结构荷载规范》《钢结构设计规范》《混凝土结构设计规范》sojufekxuuxja
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& A# z9 J6 R5 |$ C/ f5. 校核支架型钢及焊缝强度，经济选型综合支架型钢。

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1）计算单工况作用下截面内力（轴力拉为正、压为负）

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- G* g5 {7 X8 ^9 j* i2）计算荷载组合下最大内力= 1.2x恒载 + 1.4x活载

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3）计算抗弯强度zpdcvfyiwpktowzaijsztdwebyfhvlmgnh
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管线综合支吊架实施做法的案例分享

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4）计算抗剪强度odntnobxkvjhytsexpopmtdehb
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管线综合支吊架实施做法的案例分享kucqtojqcoweutzfcwrkbsnerqvicq

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5）计算梁上翼缘受集中荷载afxavifpdhfxyrttinlbbgicmhkpvpaainyskchqkqbiq
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管线综合支吊架实施做法的案例分享tuwajpfrkyngnxkazjsrgsgle

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6）折算应力bwflbosbnaruwfdrgeduymnjmbdwuep
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管线综合支吊架实施做法的案例分享

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7）计算节点焊缝节点处受力。经计算弯矩：0.31kN.m；剪力：0.71kN；轴力：65.33kN。采用E43型手工焊，焊缝的强度设计值ff=160.0 N/mm²。cbaicdxswcmtzpgjdrrzeyeiktfwpbyyofyfqcnnjlomdwvo
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管线综合支吊架实施做法的案例分享rnbhtocvoactaov

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管线综合支吊架实施做法的案例分享cqvczzphsmfyahydfeqcu

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6 a/ l2 v. w" U- l9 Y9 `% C轴力产生的应力

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管线综合支吊架实施做法的案例分享tftsticqxdrlhfkwurdvrowbldjvhnfofz

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管线综合支吊架实施做法的案例分享

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( {9 d1 @5 Z( e# ?0 Z以上结果均小于焊缝强度设计值时满足要求。afxavifpdhfxyrttinlbbgicmhkpvpaainyskchqkqbiq

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9 Z1 M1 s7 V3 R6. 将支架荷载逐一分配到各型材构件，汇总出锚栓所在受力，结合螺栓的允许设计强度值选定所用锚栓的类型、规格和数量。

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4 K8 f) I, N) C2 Z& h由计算得每根支架立柱最大轴力N=65.331KN，当砼强度为C30时，M16X110抗剪设计值V=14460N，抗拉设计值F=21010N。只承受剪力时：每根立柱需要的膨胀螺栓的数量n=N/V=65.331/14.460=4.52=5条；只承受拉力时：每根立柱需要的膨胀螺栓的数量n=N/F=65.331/21.01=3.11=4条。由此确定膨胀螺栓规格及数量。otcgafaixalbtjuhvcvtdhowvsxzbnytvx
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7. 邀请设计院对结构进行弯矩和剪力校核。

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管线综合支吊架实施做法的案例分享ujcnmypndcqlgkjbtgwxuvdccrzputpzdjzguqcvgnydcv

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（三）kjqekvqaoyhiw

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模拟试验ngkfbbigcsznouhjxmpqphqdaqzffrumuthom

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9 {6 k! S0 l% B$ S; w1 q9 G1. 加工试验模型，模拟支架受力情况，对支架整体及结构的安全性能进行校核。

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管线综合支吊架实施做法的案例分享dgzfahqhrykz

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管线综合支吊架实施做法的案例分享

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（四）oqqdgyeazcpgfzvf

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' @- q. d3 _/ [% Q6 R, U' b策划综合支架方案（附计算书及试验报告），经建设、监理单位批准后实施。mqbsyitzphnnbcwkabfvklrrhcgrmdmmiqenjtsadtwfngx
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管线综合支吊架实施做法的案例分享

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综合支架施工方案oqqdgyeazcpgfzvf

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过程控制hfsvmdmvrnxijmxwcnorwymkucjyzaa

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1.大规模门型支架调直装置vsyojtrhvxlrkwimjg
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# N: V$ T. x. {7 V; W) R* h: v1 ^4 g综合支架普遍采用[14、[16制作安装，跨度大于3m，部分超过6m；立柱长度大于4.5m、部分达到6m；层数均在5层以上，单体重量高达1.4t。urrgnumxkeziptavwlsmiq
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9 ^( g4 l# m  F& t) {4 l' c' F在施工过程中存在以下问题：btzrbaquntpxykqhfdwpynwwzkoftymiujkafnktbnms
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$ z0 W0 B! u- l" z7 J5 J1）支架立柱长，易变形扭曲；

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8 B- B5 w% y9 m9 G: m0 r: T2）支架层数多，焊口密集、焊接应力集中，容易产生焊接变形。hbjpqeddlrebztvlhobtvzkvwayayajxxshiezaeicghzhnmoy
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以上问题可能导致支架安装完成后产生局部变形，影响整体布局美观。gbshyuioqwnmqdaczivpaspjdxldhesvozpronn
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# A# N6 I6 ?4 L  x为此，项目部设计加工“支架调直器” 对变形支架进行调整。_{akoludrqhhdkwuphoindiyxclkepcvfaiip}
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管线综合支吊架实施做法的案例分享_ofljmxahxxg

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管线综合支吊架实施做法的案例分享

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原理图

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5 q  U& E, _! e- P! s, D限位装置采用[20制作，一侧开140X140方形口，一侧开165X120矩形口；槽钢长度据实确定，需保证方管与支架距离略大于千斤顶本体长度，小于千斤顶行程和本体长度之和。rcdirxaglklliviitttoxfetpjoldzmkfqlwfggjupfqemg
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管线综合支吊架实施做法的案例分享

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组件1 限位装置俯视图

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敞口一侧钻Ф30圆孔，穿入Ф25螺纹钢限制支架与限位装置的相对位移；附近焊接Ф20螺帽，调直前后千斤顶不受力时，拧紧螺栓可以防止调直器坠落。

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管线综合支吊架实施做法的案例分享

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组件1 限位装置侧视图

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! F, n1 [2 {/ r( ^支撑装置采用□120X120X4.5制作，插入限位装置的方形孔内，支撑千斤顶底部受力。每隔一段距离钻Ф30圆孔，可以胜任不同长度立柱调直工作。_rbrrwcfgypj
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管线综合支吊架实施做法的案例分享

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管线综合支吊架实施做法的案例分享

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操作步骤hadezboxcmqfevjry

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管线综合支吊架实施做法的案例分享llsdztdrdetpiodcuhiogurbqzkcgpmlnaubdsutqqsot

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$ Q  R& ?. Y: _/ r- H; d9 J2. 设计加工蒸汽、凝结水导向管座rlcgdwzkxgiybakqfkuxdpxtjijplpdbzbfxjsbabzndodn

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1）凝结水导向管座：圆管上焊接钢板作为支撑立板，将矩形管切割后倒置作为限位装置，不锈钢立板与管道满焊，矩形管与底板之间衬聚四氟乙烯板减小摩擦系数并隔热。_rbrrwcfgypj
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管线综合支吊架实施做法的案例分享

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模型图及现场图hfsvmdmvrnxijmxwcnorwymkucjyzaa

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2）蒸汽导向管座

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" Q7 S+ w% V- a$ l/ k( K* a+ C0 O壳体采用1.5X25、4.0X60mm 钢带，8mm厚钢板焊接；滑动面采用聚四氟乙烯板制作，PTFE熔点327℃，使用温度250℃＞195℃，摩擦系数0.04，是固体材料中摩擦系数最低者，可以有效实现由于管道涨缩引起的滑动；壳体内衬石棉管托绝热。xkfjtlxzxocxjdytqiujnqoylnildbcgufqmczhcunjwtw
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管线综合支吊架实施做法的案例分享

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三维模型图ubjpptdlgiongezgkbmdgiawdmu

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定制加工图

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管线综合支吊架实施做法的案例分享

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现场效果图elrirnqrocxiaoptokfrycreb

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3.利用综合支架搭设检修平台

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管线综合支吊架实施做法的案例分享_ofljmxahxxg

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4.单个支架“一体多用”

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管线综合支吊架实施做法的案例分享

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管线综合支吊架实施做法的案例分享

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管线综合支吊架实施做法的案例分享

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