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gouwfebhtwe

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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。

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有无综合支架效果对比ssabzmmjlvtszhcl

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管线综合支吊架实施做法的案例分享

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无综合支架VS有综合支架sfyypweukr

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- R1 R) j/ f/ ^" g9 x$ x+ }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。onqgtfoevzfqzmwngwlsqopebyxevwwmjktco
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（一）wajgrvlhihxu

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管线综合排布uuyvxjcwvqrtxkwygkcwqczacjqwtfagglpdupjuogfunvu

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* c% J& q. s& J7 b0 t9 ]运用BIM技术辅助进行管线综合排布。rlwxbwyelbpjfrqlsm
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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。jzdngxeggqzzenmjzurksnftydpsegrezluqnys
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管线综合支吊架实施做法的案例分享aedhchrugnlyzersboqybncyotislzhpkklw

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III区2层管线综合排布wajgrvlhihxu

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5 A( K4 m7 J2 J2 o7 Y5 q2 g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。fvttstxkvootfgcekbdprdqrvaydtzrjny
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管线综合支吊架实施做法的案例分享vvezmdlkhhvvpflivelpeylpsloqexlpbewosbz

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VI区3层管线综合排布

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本工程管线综合排布原则：ovjownzqlhnhfsojgrvwplqscbfcwjtappcsntt
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9 r8 Y% w! K  X1）预留安装维修空间；ovjownzqlhnhfsojgrvwplqscbfcwjtappcsntt

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6 r" F/ n7 P5 t1 H( m# M5 x6 G2）小管让大管、有压管让无压管、低压管让高压管；oukzonycmxhrdoftufihgujxmorkiddlzxnvyumvlhz
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1 V* y/ W( X0 O" z/ w" [3）行程长的管线在上层，行程短的管线在下层；

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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；mxlwfaxyrefiopzzfsmbvtoefqcrfmzfmplords
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5）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；oqliupbpnlkmbcebwsuqwekfbcu
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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；qshrriyaoroayqkfxbvdawsqpwzqqcwdjxeoakcqntbe
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7）最上层桥架槽盖开启面至少保持50mm垂直净空。tzgphruepygciuktamifoibxjitlcezjhlx
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（二）

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选型计算_{ezkoamuskmhpdmmuohnlerjpgxzdofawgqduto}

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7 m6 |1 H) a4 ~& R$ n5 z以II区2层为例，依据管线综合排布策划综合支架方案。xkptwrvrbxtskjuc
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管线综合支吊架实施做法的案例分享

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II区2层管线综合排布

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1.初步选择支架型钢，策划综合支架方案，创建支架三维模型。_{oumdxcrkplcretuy}
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管线综合支吊架实施做法的案例分享baqsvkoyetbcnsl

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, v  J- W1 C, Z2.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。xeugzxpgstdkzhlzaehmkbhzqekyxukexvji
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管线综合支吊架实施做法的案例分享kpcmpyrawsigubktxhjzirtbcluuiaqxotcjavahjirbtkec

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/ l- y" Y6 V/ S' V# a, J) @8 Q/ w3 w3.对支架进行受力分析。ngfpzgdthvitnzhcquvrpaksaejbtmqjxtpjwixuhiqgsb
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3 \) u3 ~  T+ b) m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。

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管线综合支吊架实施做法的案例分享

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; m- R. b7 ~, \4.拟定计算参数。rxzcwnxvqhixhokrrrwxoeeqhbkidioanmkquiczyekrtd
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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。_opinnarypr
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2）设计资料

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* K  z" ~* Y4 g* M1 X. G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。ygdsuzawfmjoymqzitmdgpweazxvvwfahxkha
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3）参考标准与规范：

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1 h6 ~% X: Y; _9 @9 i《建筑结构荷载规范》《钢结构设计规范》《混凝土结构设计规范》vgpqqpwxzjcgjuyybgjntmomxm

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' M1 S$ O, a% k5. 校核支架型钢及焊缝强度，经济选型综合支架型钢。ccbqyehbhwcwfepkorpnsmaliclurxkqmptv
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# A$ L7 X8 P2 Y1）计算单工况作用下截面内力（轴力拉为正、压为负）

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$ {' C: K. p8 I5 @- U2）计算荷载组合下最大内力= 1.2x恒载 + 1.4x活载_{zcirbetnjypjttdqosyxguyiabwijqngxmxnntcaeqtzqk}
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4 m6 C& o. M0 b( |, e3）计算抗弯强度

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

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/ S$ C) M5 D2 l4）计算抗剪强度jktsgfvbjbfpilfnzglrjvvceqmcsdnexcobevgwbumbpctero
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5）计算梁上翼缘受集中荷载widqcasyiudcsauuwzpjorakrti
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6）折算应力nmvinjivvbjuk
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管线综合支吊架实施做法的案例分享uaguhtxuqtamf

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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。_{zilfscqzzinillntrxxdlwnxuupzkvjf
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2 G3 c9 j2 N; K) x2 N5 n5 y0 J弯矩产生的应力udacclibdsaogypsipdjaqjfnqbox
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剪力产生的应力

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

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1 A! ?0 F; I; O7 R( u6 x2 W# n" ?轴力产生的应力tmkhjmxecwsyrrzxnrds

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管线综合支吊架实施做法的案例分享_{vmjfmiagidhedlaqu}

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管线综合支吊架实施做法的案例分享_{nmvecnufaesigtionezuuudzrdswmprevmix}

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以上结果均小于焊缝强度设计值时满足要求。gucgaiojwbdmfgvbbkicaendkyam
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6. 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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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。tncdlvuukleptvifcyioflmqkm
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# j# v! _, N! P7. 邀请设计院对结构进行弯矩和剪力校核。mdbzsscclqn
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（三）

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模拟试验_{ekftarczkgtrchbonaykdjmmrrdnqlzxrxu}

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1. 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。widqcasyiudcsauuwzpjorakrti
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管线综合支吊架实施做法的案例分享

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+ i, t) ]* \2 K2. 出具检验报告。qrcqodcwgbjotavi
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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）

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方案会审wajgrvlhihxu

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: T& m, g9 t" M4 b1 z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。btkelxqmxjfgpcllm
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管线综合支吊架实施做法的案例分享eljfcqynvsxkiglkfsxrywtjwcmthzmmwinvzdyg

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综合支架施工方案ceelnzzuystlxpotnoqkhdvnrwqijweviijpscuxovdbu

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（五）

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过程控制

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4 r# V, i: S6 I- ?' g  J+ W1.大规模门型支架调直装置

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+ U* d/ |% U) }# c- S, Y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。pntfqsyyqubyaveuq
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在施工过程中存在以下问题：zaduqmlctwwmzmvmegsnkudiuprcer
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, L. Y' f% G) ?+ `1）支架立柱长，易变形扭曲；_{yepsorgszolypkugjstijxeqdsrfevteaiydkouvpoucnzmnk}

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2）支架层数多，焊口密集、焊接应力集中，容易产生焊接变形。mchysolgdv
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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。

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为此，项目部设计加工“支架调直器” 对变形支架进行调整。jffouapdoxybacxosnbkcidnihtdggom
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管线综合支吊架实施做法的案例分享foixraiaqiepvulbarmkquhwraxc

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原理图xdtsxxofdpywedzazdpbedlvobqowbxakfo

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1 P- u0 [7 Q+ ], {1 x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。widqcasyiudcsauuwzpjorakrti
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管线综合支吊架实施做法的案例分享

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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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组件1 限位装置侧视图dejoctuvcmvrhivscm

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$ ]  Q- X9 Z3 ]  ?  Y$ k+ p, a+ W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。lnlhtgljynarylvkxgwcsiqfuwqbdkgm
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管线综合支吊架实施做法的案例分享aedhchrugnlyzersboqybncyotislzhpkklw

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组件2 支撑装置azhqdzdxqswvyfnndguoo

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操作步骤ajskcxdxxxtgjheidtprfdsvcnasegvhobqtmrrousjwdqtea

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

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; i( l3 v% o/ o" x  \2. 设计加工蒸汽、凝结水导向管座_{lbpquylaeebuhntmzk}
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! L) s  m& H  Z4 o: \( k/ ]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。

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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gjlsckxdorl

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2）蒸汽导向管座bmnusywolqocofggiencxsnbwnzbd
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, q1 d4 M% a1 m  c7 ?7 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。mtpvdsffomwunvbnbahkpmglrqtelcqjjhhfswillxdglat
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管线综合支吊架实施做法的案例分享ifujsczwwrnofcdkagwcaldiurxqyvlu

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三维模型图yhvqirpjmxsdatvvahsximbpglkulipjmntqgjzd

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定制加工图sfyypweukr

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管线综合支吊架实施做法的案例分享_{nqjuyqequsqjsnsjppflwdavohpsminl}

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现场效果图btmemelkzpbtbfwtfabzsjyziojeoxzbxlhdxwcrwfi

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3.利用综合支架搭设检修平台

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7 s- E7 y0 r* Y, I1 v0 Y+ q$ A本工程多数管线标高大于5m，部分阀门标高超过3m，为了方便后期维修操作，利用综合支架搭设检修平台。qhlcikfhnhaugomiyttmoncf
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管线综合支吊架实施做法的案例分享rdvzdzhxbtobebudttjmqvvbubpocwdfzwhrgrn

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制冷站机组立管支架pirhdqalgcstutvjiev

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4.单个支架“一体多用”xsvkjwnupozmx
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4 D0 A# u( U# M2 z" {7 t# M# D立管与水平管共用支架，主立管支架兼顾分支管道支架。hqbtrwgqvodirwkhzuugtglbzb

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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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