石油化工企业地脚螺栓设计参数取值的规定

1、1.0.1 为了统一石油化工企业土建工程中 地脚螺 栓设计 参数的 取值，特制定本规定。1.0.2 本规定适用于钢框架、钢管架、钢支架及钢平台的柱脚地脚了螺(C级)设计参数 的 取值 。本规定引用 的 标准和规范：a)普通螺纹基本尺寸 (GB196-81 ) ；b)1 型 六 角 螺 母 -C 级 ( GB41-86 ) ；c)平 垫 圈 -C 级 ( GB95-85 ) ；d)钢结构设计规范( GBJ17-88 ) ；e)混凝土结构设计规 范( GBJ10-98 )2 设计参数2.0.1 地脚螺栓的设计参数应按表 2.0.1 取值：地脚螺栓 直径d(mm)螺距P(mm)有效直径de(mm)有

2、效面积Ae(mm)抗拉承载力设计值n；(KN螺母重每个(kg)垫圈重每个(kg)螺杆重每延米(kg)Q235 钢16Mn 钢101.508.592758.08.1210.440.0110.0030.62121.7510.358284.311.8015.170.0160.0060.89(14 )2.0012.1236115.416.1620.770.0250.0081.21162.0014.1236156.721.9428.210.0340.0111.58(18 )2.5015.6545192.526.9534.650.0440.0142.00202.5017.6545244.834.2744.

3、060.0620.0162.47(22 )2.5019.6545303.442.4854.610.0760.0182.99243.0021.1854352.549.3563.450.1120.0313.55(27 )3.0024.1854459.464.3282.690.1680.0394.49303.5026.7163560.678.48100.910.2340.0515.55(33 )3.5029.7163693.697.10124.850.2800.0716.71364.0032.2472816.7114.34147.010.3710.0877.99(39 )4.0035.2472975

4、.8136.61175.640.1269.37424.5037.77811121.0156.94201.780.5990.20010.88(45 )4.5040.77811306.0182.84235.080.24312.49485.0043.30901473.0206.20265.140.9570.28414.21(52 )5.0047.30901758.0246.12316.441.1000.31916.68565.5050.83992030.0284.20365.401.4200.44319.35(60 )5.5054.83992362.0330.68425.160.47722.2164

5、6.0058.37082676.0374.64481.681.9120.51325.27(68 )6.0062.37083055.0427.70549.900.55028.53726.0066.37083460.0484.40622.800.58831.99(76 )6.0070.37083889.0544.46700.020.70935.64806.0074.37084344.0608.16781.920.90239.49(85 )6.0079.37084948.0692.70890.640.94244.58906.0084.37085591.0782.741006.381.21249.98

6、(95 )6.0089.37086273.0878.221129.141.25955.681006.0094.37086995.0979.301259.10I1.65461.70注：括号内的地脚螺栓，尽可能不采用。 表中螺距系按国标GB196-81普通螺纹基本尺寸查得，如图示： 地脚螺栓有效面积Ae=(d 13 ；3P)2424 地脚螺栓抗拉承载力设计值N； =Ae x f af a (地脚螺栓抗拉强度设计值)=140N/mm 2 ( Q235钢)f ；(地脚螺栓抗拉强度设计值)=180N/mm 2 ( 16Mn钢)基础顶面至地脚螺栓顶的距离），应符合下列公式要求（图 2.0.2 ）单螺母垫圈

7、 双 螺母及 垫圈 图 2.0.2 地 脚 螺 栓 伸 出 基 础 面 长 度(2.0.2 -1)(2.0.2-2)a） 单 螺母 及垫圈H> h+1.5db） 双 螺母 及垫圈H> h+2.3d式 中 H 地 脚 螺 栓 伸 出 基 础 面 长 度 （ mm） ；h 按 工 程 要 求 确 定 （ mm） ； d 地 脚 螺 栓 直 径 （ mm） 。2.0.3Q235钢地脚螺栓连接尺寸、锚固长度及细部尺寸，可按表取值。地脚螺栓 直径d（mm连接尺寸锚固长度及细部尺寸单螺母双螺母锚固长度（mn）锚板尺寸a(mm)b(mm)a(mm)b(mm)基础混凝土的强度等级为c(mm)t(m

8、m)C15C20C15C20C15C202045756090500400224575659555044024508070100600480275080751056755403055858011075060033559085120825660366095901259007203965100951301000780427010510013510508406305051402045751101051401125900675540140204880120110150120096072057520020528512512016013001040780625200205690130130170140011

9、208406702002060951351401801500120090072024025641001451501951600128096077024025681051501602051700136010208152803072110155170215180014401080865280307611516018022519001520114091032030801201651902352000160012009603504085130180200250212517001275102035040901401902102602250180013501080400409515020022027023

10、7519001425114045045100160210230280250020001500120050045注：锚固长度除中国石油化工总公司行业标准中有规定外，其他按表中数值采用，抗 震设防区的锚固长度L，应按表列5d （I、H型）；3d （川型）。16Mn钢地脚螺栓连接尺寸 锚固长度及细部尺寸，可按表取值。地脚螺栓 直径d（mm连接尺寸锚固长度及细部尺寸单螺母双螺母锚固长度（mn）锚板尺寸a(mm)b(mm)a(mm)b(mm)基础混凝土的强度等级为c(mm)t(mm)C15C20C15C20C15C202045756090600500224575659566055024508070100

11、720600275080751058106753055858011090075033559085120990625366095901251080900396510095130117010004270105100135126010507556301402045751101051401350112581067514020488012011015014401200865720200205285125120160156013009357802002056901301301701680140010108402002060951351401801800150010809002402564100145150

12、195192016001150960240256810515016020520401700122510202803072110155170215216018001300108028030761151601802252280190013701140320308012016519023524002000144012003504085130180200250255021251530127535040901401902102602700225016201350400409515020022027028502375171014254504510016021023028030002500180015005

13、0045注：锚固长度除中国石油化工总公司行业标准中有规定外，其他按表中数值采用，抗震设防区的锚固长度L，应按表列5d （I、n型）；3d （川型）1型六角螺母-C级表A 1型六角螺母-C级（GB41-86 ）地脚螺栓直径dmme（mm）s（mm）m（mm）地脚螺栓直径d（mm）e(mms(mmm(mm1017.6169.52745.24124.71219.91812.23050.94626.41422.82113.93660.85531.51626.12415.94272.06534.91829.62716.94882.67548.92033.03018.75693.68545.92237.33420.264104.99552.42439.63622.3注：表中数值s、m为最大值,e为最小值。附录B平垫-C级表B 平垫圈-C级(GB95-85)地脚螺栓直径d(mm)内径d1(mm)外径d2(mm)厚度t(mm)地脚螺栓直径d(mm)内径d1(mm)外径d2(mm)厚度t(mm)1011202.04548858.01213.5242.54852928.01415.5282.55256988.01617.5303.056621051