储罐安装抗风载荷计算wind load calculation sheet

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1、储罐安装抗风载荷计算WindLoadCalculationSheet1、Windload：W0=800Pa（RefertoCA-8430-0800-0001）风载荷：W0=800Pa（参见CA-8430-0800-0001）Standardvalueofwindload:W=ßzμzμsW0Herein,ßzreferstowindvibratingfactor，ßz=1；μzreferstowindpressureheightfactor，μz=1.38*(H/10)1/4=1.38*(22/10)1/4=1.681；μsreferstowindloads

2、hapefactor，μs=1.5；W0referstostandardvalueofwindpressureW0=800PaTherefore，W=1×1.681×1.5×800=2018Pa风载荷标准值为：W=ßzμzμsW0其中：ßz为风振系数，取ßz=1；μz为风压高度系数，取μz==1.38*(H/10)1/4=1.642；μs为风载体型系数，取μs=0.8；W0为风压标准值W0=800Pa所以，W=1×1.681×1.5×800=2018Pa2、Calculatingconditions计算条件：1）Theinclinationbetweenth

3、esteelcableandgroundaswellastensilestressisbiggestwhenthelastcourseshellplateisinstalledandafterclampsisfixed.安装最后一圈壁板，工卡具固定完毕，此时钢丝绳与地面夹角最大，受拉应力也最大；2）Forsinglecourseshellplate,semi-circleareaissupposedtosupportthefrontwindload.按单圈壁板，半圆范围承受正面风载荷；3）（Inthesemi-circlearea）steelcablesar

4、elocatedinsixpointsequally.（半圆范围内）用钢丝绳封6个位置均布；4）Onesteelcableissetforeachpoint.每个位置用单根钢丝绳；5）Thevariableofsteelcables(钢丝绳参数：):Steelcable:6×376X37钢丝绳Diameter:f28.0mm直径f28.0mmTensileintensity:170kg/mm2钢丝绳公称抗拉强度为170公斤/毫米2Totalsectionarea:A0=85.39mm2钢丝总断面面积A0=291.52mm2Therefore,thetotal

5、breakagetensilestrengthismorethan50050kg.SeeSYB-4112-80HoistingOperatingProcedure.DetailedinAppendix.因此，钢丝绳破断拉力总和不少于50050公斤见SYB-4112-80《起重工操作规程》。具体的见附页。3、Calculationonthetensilestressofthesteelcable钢丝绳抗拉强度计算1）Forceanalysis受力分析2）Frontcross-sectionareatosupportwindload:A=78*2.48=193.

6、44m2承受风载荷正截面面积：A=78*2.48=193.44m2;3)Pressureproducedinthefrontcross-sectionarea:F=193.44*800=154752N正截面上产生的压力：F=193.44*2018=390363N4)Consideringthemaximumpullforceofthefrontofsteelcablesandthelessforceinthetwosides,theloadofonesteelcableis:F1=390363/6=65060N考虑正面钢丝绳受拉力最大，而两侧受力减弱。因此，

7、单根钢丝绳承担的风载荷为：F1=390363/6=65060N5)Pullforceofthesteelcable:T1=K*F1/cos45°=1.5*65060/cos45°=348085NConvertedintoKG:T1=348085/9.8=35519kgIntheformula:Kreferstosafecoefficient钢丝绳拉力：T1=K*F1/cos45°=1.5*65060/cos45°=348085N折算为公斤数为：T1=348085/9.8=35519kg其中：K为安全系数，K=1.56）Thebreakagestrengtho

8、fsteelcablescanbeconverted