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

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$ h; J# F( z$ F1 z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

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

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无综合支架VS有综合支架wswoetqfjh

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- R7 B+ a) [2 g4 I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。fjovhievgepbwb
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管线综合排布dwuulpcquxkqfhbmpfppxyredswtljfscczgmqwdzxev

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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。qwvjckvcikpxpsqwlysz
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管线综合支吊架实施做法的案例分享qyxuxowzxbaehq

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III区2层管线综合排布

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" ~$ ^: K' s' R: p- M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。

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

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VI区3层管线综合排布_{krnqkpsuhonwskmohnoysxqohhtlb}

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本工程管线综合排布原则：

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1）预留安装维修空间；dehzqmfjurgqserxvckjbbvjarktbaxsffo
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2）小管让大管、有压管让无压管、低压管让高压管；

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9 Y0 O' ~; w) f2 ^) E4 a3）行程长的管线在上层，行程短的管线在下层；dthlxzdixp
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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；dsqvrvqicoxgwosmohrkdaaviig
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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；

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- `9 l$ I0 z7 X0 Z/ b, v6）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；

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7）最上层桥架槽盖开启面至少保持50mm垂直净空。

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（二）

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选型计算bdwneagkjtjlqdezlrmbeoxqkzsdfbxyjzkp

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1 P, B# h  ?/ \: I1 @7 d以II区2层为例，依据管线综合排布策划综合支架方案。qtonvdocdowrqupgyfmkarcphqeytnfxyomucxw

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管线综合支吊架实施做法的案例分享crlkneoclqcvcoub

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II区2层管线综合排布_{gnlivkxtsmlropfsmdjlenyfucgigiyyfce}

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

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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。

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管线综合支吊架实施做法的案例分享

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; }6 d. S6 t0 L3.对支架进行受力分析。smhxowvqncifevdlbqhxxyhbwnvmaryyphnjbmy
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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。

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管线综合支吊架实施做法的案例分享

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& b& d. g% T! l; C, H' H- ~4.拟定计算参数。nhdafhrsmjkhrxfpxjcyxvhvg
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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

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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。hnamjfofomrrsujactknoi
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3）参考标准与规范：

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《建筑结构荷载规范》《钢结构设计规范》《混凝土结构设计规范》jledvdeszrsgsoxlhdpyzbqwabmosfwkpuqmn

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5. 校核支架型钢及焊缝强度，经济选型综合支架型钢。chcamieewypvyoyq
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. m# O9 K0 t$ \1）计算单工况作用下截面内力（轴力拉为正、压为负）qyrnzybnlrcvjfdaanavkmugzkgwpuzqgpaknywxcuv
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$ s9 L  d+ Q8 {; x! G, s0 M4 V% 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

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管线综合支吊架实施做法的案例分享crlkneoclqcvcoub

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  z0 P0 r( U# Q  j, _7 ^4）计算抗剪强度xrnvxgifdkwabnnbshfgnkxpixspnbvcrybmvwiarbgmgfsire
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管线综合支吊架实施做法的案例分享mcajlbhlcwffwoawvyollveqim

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5）计算梁上翼缘受集中荷载

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- C- F; H4 P3 V" K3 I9 v6）折算应力rxthgaxsibxfdkmzxzlbdltchhaoo

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

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6 u1 [! p. b' R: l% ?7 R- R- N7）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。oiuuhfqddujeecnsqtraprhfxzlrktedoawmcvosjopssd
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弯矩产生的应力yrgbbqdkpjwhtdphsfhccgqpn
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管线综合支吊架实施做法的案例分享_{icbkribhbmxlflndffsqyuiuumemehoel}

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/ i: {5 U' d* i; m0 R剪力产生的应力ccqtenpkkkzfvvkxvh
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管线综合支吊架实施做法的案例分享_{zuzileqrnemxkhndcinskboommntwustpzoj}

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轴力产生的应力qwiyefpetqkzrgtebujdaqjvnsibknnuixamntetklyqtcd
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管线综合支吊架实施做法的案例分享rrdfggbwmlglhkxxbnxdhrj

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折算应力ccqtenpkkkzfvvkxvh

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管线综合支吊架实施做法的案例分享

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以上结果均小于焊缝强度设计值时满足要求。xgmnqtejetavvgtvoopivkeithqgrazjmiqyvgolye

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3 u1 J9 ]# _9 k% `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。lkhkepowpayh
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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）

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模拟试验pezkxtmzaonwvgoicmbpjxkpyopwlbvigtsdjcednuaw

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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。_{eveunkijniwfekxcwlrwcywqkczqrqdsz}

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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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（四）

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7 ]) i- U! C4 m% j1 q8 g3 E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。

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管线综合支吊架实施做法的案例分享smoczyihoycxm

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综合支架施工方案

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（五）

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过程控制_{mzzyniskyhbyvyxrlynybczzij}

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' v1 U' X  Q- w0 w1 n8 w3 w/ [1 U1.大规模门型支架调直装置shwdxmixuhnpnttvzumkdxpjhkneadftgfpwfiyqoqwm
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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。aqofcsrczyxnrrjlhnwdlngatefev

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9 n! L6 _2 @: E+ u: k在施工过程中存在以下问题：

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  `" u: T  ?' }. v$ q( e1）支架立柱长，易变形扭曲；

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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。

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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。utbgfmyhwfdithzrbij
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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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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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模型图及现场图

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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

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* x- |( N9 s& T0 ^7 v3.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

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