平湖煙囪施工方案

1 2 2 2 3 3 3 3 3 3 4 5 5 9 23項目名稱工期(天)4GB50300-2013GB50204-2015GB50212-2018GB50026-2007JGJ8-2016JGJ55-2011GB50107-2010JGJ18-2012JGJ107-2016GB20164-2011GB50194-2014JGJ33-2012JGJ80-2016GB19155-2003GB50194-2014GB12523-2011JGJ59-2011DL/T5210.1-2012GB50078-2008范準(zhǔn)規(guī)標(biāo)5井架垂直運輸及扒桿垂直運輸簡圖67本工程采用臺液壓控制臺通過根總油管及根分管向個爬升千斤頂。千斤頂每次爬升行程為，連續(xù)爬升個行程。平臺滑升高度達(dá)到。當(dāng)個別千斤頂不同步時，可以關(guān)閉高位千斤頂，然后讓低位千斤頂再爬升一二個行程即可。這樣操作平臺就可處于水平狀態(tài)。8見上圖：本工程采用只爬升千斤頂將整個鋼結(jié)構(gòu)平臺及下掛架向上進(jìn)行滑升，每次滑升高度為，平臺滑升到位后，施工人員即可在下掛架上進(jìn)行鋼筋安裝，模板拆除安裝加固，在頂層操作平臺上澆筑混凝土等工作。9KJ-3/YH360∕∕AL12A-32J2-2//Φ20P2.531.5~3427.59Φ22P2.534~36.53110Φ25P338.5~41.533.51125332+100+100序序項目名稱允許偏差設(shè)災(zāi)電火觸1234567LEC363367367363361536153673673673673673615361536153673615367367災(zāi)電災(zāi)電火觸36序號123456器墜7L=2400mmb=250mm,h=50mmρ=5KN/m3E=9000N/mm2I=250*50*50*50/12=2604167mm4W=250*50*50/6=104167mm3q:0.25*0.05*5=0.0625KN/m0.25*1.5=0.375KN/mMW4167=3.18N/mm2＜13N/mm2Kν=5qL4/(384EI)K=5*0.4375*21004/(384*9000*2604167)=6.13mmIx=27.12*104mm4Wxmin=6*103mm3g=57.21N/mE=2.06*105N/mm2q:MWN/mm2＜215N/mm2ν=5qL4/(384EI)K=5*4.2572*8004/(384*2.06*105*27.12*104)=0.006mmA=480.3mm2，A=480.3-20*5=380.3mm20Ix=11.21*104mm4E=2.06*105N/mm2:0.0377KN/m2.1*2*0.01=0.042KN1.132，ω1.132，ω=0.60*1.71*1.132=1.16KN/m2F=2*0.8*5.83/2=4.664KNN=1.2*(0.0377*3.8+0.042)+4.664=4.886KNσ=N/A=4.886*1000/380.3=12.85N/mm2＜215N/mm20M=0.9*1.4*M=0.9*1.4*ωlh2/10=0.9*1.4*1.16*2.4*2*2/10=1.403kN·mwwkkaσ=N/A+Mw/W97.1N/mm2＜215N/mm2A=201mm2τ=F/A=4.894*1000/201=24.35N/mm2＜140N/mm2max-----------------------------------------------------------------------123]1.1254.3501.125]左0.00000.0000-2.5800中0.0000-4.1806右8330.0000-8.1813左8330.000023.2947中0.000024.2964-0.3055右8330.0000-23.29475.48330.00008.1813]]φb11.00021.00031.0001.90140.00004.180640.4840.48右0.00000.0000.5800))0006123]8811.360]123123000000.99.99.99γγx2γ12315.0015.0015.0015.0015.0015.0015.0015.0015.00(N/mm2)(N/mm2)(N/mm2)125.00235.00206000125.00235.00206000125.00235.00206000mm=17.4mm-----------------------------------------------------------------------6.5PB3100023450001左0.00000.0000中0.0000右6490.00002左6490.0000中.00560.0000右0.00003左0.0000中0.0000右0.00004左0.0000中.00560.0000右6490.00005左6490.0000中0.0000右0.00000.0000]1.0202881.02304.025.020]12345]399393837888822.21421.322]1234512345.00.00.00.00.00cm(cm3)80.5080.5080.5080.5080.5080.5080.5080.5080.5080.5047.5047.5047.5047.5047.50γx2]1234515.0015.0015.0015.0015.0015.0015.0015.0015.0015.0015.0015.0015.0015.0015.0035.0035.0035.0035.0035.000600006000060000600006000]-----------------------------------------------------------------------(1)φ48*3鋼管F=23.2+8.1=31.3KNσ=N/(φA)=31.3*1000/(0.406*424)=181.8N/mm2＜205N/mm21.5KN/m211Ix=2*(6*107800+4*424*21502+2*424*12002)=1.8123*1010mm40Iy=2*(6*107800+2*424*28502+2*424*20002+2*424*5002)=2.0985*1010mm40i=(Ix/A)0.5=[1.8123*1