中建钢筋工程优化技术策划指导手册 (一)

钢筋工程策划指导手册

目录

1钢筋技术优化.............................................................1

1.1通用部分......................................................1

L钢筋接头优化..................................................1

2.钢筋等强度代换...............................................1

3.基础底板马凳筋形式优化......................................2

4.结构措施纲筋优化.............................................2

5.型钢马凳支撑梁代替筏板同向钢筋..............................3

6.成品马髡代替钢筋马凳........................................4

7.钢筋原材采购优化............................................5

8.现场钢筋余料利用............................................5

9.措施钢筋入图优化............................................6

1.2基础..............................................................7

10.梁板式筏型基础顺梁底方向板筋优化...........................7

11.筏板增加钢筋网片优化.......................................8

12.桩承台范围内地梁箍筋优化...................................8

13.筏板高差处钢筋优化.........................................9

14.桩长变更减少钢筋废料......................................10

15.支护桩钢筋笼增加三角支撑钢筋优化..........................11

16.基坑支护钢筋网长度优化....................................11

17.平板式筏基钢筋排布细节优化................................12

18.塔吊基础深化策划...........................................13

19.后浇带采用跳仓法施工......................................13

20.抗浮锚杆钢筋技术优化......................................14

21.基础联系梁纵筋伸入承台直锚................................15

22.灌注桩增加吊筋优化........................................16

23.基础筏板局部较大高低跨部位马凳纲筋优化....................16

24.冠梁弯折处梁纵筋互锚......................................17

25.人工挖孔桩扩大头底部钢筋尺寸优化..........................18

26.利用地下室顶板作为施工电梯基础............................19

27.集水井放坡角度优化.........................................19

28.基础斜板钢筋优化..........................................20

29.管沟环形钢筋搭接长度优化人................................21

30.承台面筋布置范围优化......................................21

31.抗拔桩纵筋优化.............................................22

32.基础梁底部纵筋锚固形式优化................................23

33.基础底板架立筋优化........................................23

34.筏板基础相交处斜坡分布钢筋优化............................24

35.主体结构围护桩优化........................................25

36.注浆管代替桩基钢筋优化....................................26

37.采用抽条法施工代替钢管桩支护优化..........................26

38.底板后浇带钢筋优化做法....................................27

39.增加独立基础插筋优化......................................28

40.基础底板伸缩后浇带钢筋优化.................................28

1.3柱..............................................................29

41.型钢柱箍筋和拉筋施工优化..................................29

42.变径套筒优化...............................................29

43.柱插筋伸至基础底板弯折优化................................30

44.桥梁墩柱插筋长度优化......................................30

45.支撑与格构柱连接抗剪钢筋优化..............................31

46.支撑梁格构柱做法优化......................................32

47.变截面柱钢筋优化..........................................33

1.4墙...............................................................33

48.梯子筋代替墙体竖向钢筋优化................................33

49.墙体顶模棍优化.............................................34

50.墙体筏板内水平定位筋优化..................................35

51.圈梁代替门窗过梁优化......................................35

52.池壁剪力墙拉筋优化........................................36

53.连梁纵筋与核心筒内芯柱连接方式优化........................36

54.挡土墙与围挡合并优化......................................38

55.型钢连梁端部暗柱箍筋优化..................................38

56.抗剪切钢筋优化.............................................39

57.墙柱基础底板插筋优化......................................40

58.地连墙导管仓、吊点钢筋优化................................41

59.地沟侧壁增加拉钩..........................................42

60.夹层砌体挡墙优化为钢筋混凝土挡土墙........................42

61.窗洞处外墙现浇优化.........................................43

62.构造边缘构件封闭箍筋优化..................................44

63.水平筋计入体积配箍率，减少箍筋数量........................44

64.剪力墙竖向分布筋顶板锚固优化..............................45

65.非承重墙下设置加强带优化..................................46

66.地连墙主筋排布优化........................................47

67.地连墙导管构造钢筋优化....................................47

68.墙体超幺增加钢筋排数优化..................................48

69.剪力墙补强暗柱优化........................................49

70.剪力墙水平筋伸入端柱的锚固构造优化........................49

71.剪力墙构造拉结筋弯钩尺寸优化..............................49

72.转换层剪力墙插筋优化......................................50

73.剪力墙顶部及底部增加腋角钢筋优化..........................51

74.铝模工程节点优化..........................................52

1.5梁...............................................................52

75.梁纵向钢筋连接接头优化....................................52

76.不同直径钢筋搭接改为同直径钢筋搭接........................53

77.梁二排筋垫铁优化..........................................54

78.核心筒钢骨梁上剪力墙竖向钢筋优化..........................54

79.冠梁箍筋优化...............................................55

80.KL等梁为梁支座时梁端部箍筋加密优化.......................55

81.钢筋混凝土梁与钢骨柱连接做法优叱..........................56

82.体育场馆项目看台梁板节点配筋加建..........................57

83.宽扁梁处板底钢筋支座锚固长度优化..........................57

84.梁端钢筋锚固优化..........................................58

85.箱梁架立筋优化.............................................59

86.车库大柱网井字梁优化为小柱网单向次梁......................59

1.6板..............................................................60

87.混凝土反坎墙下无梁处加筋优化..............................60

88.现浇板内薄壁方箱措施钢筋优化..............................61

89.抗裂钢筋网片的应用优化....................................62

90.转换层暗支撑纵筋优化......................................63

91.楼层板内暗梁处节点优化....................................64

92.无梁板带板筋统一方向、变径套筒连接优化...................65

93.刚性地面框柱箍筋加密......................................66

94.装配式结构叠合楼板后浇板带措施筋优化......................67

95.楼承板替代压型钢板........................................67

96.封边板拉筋优化............................................68

97.板面洞口加强筋长度优化....................................69

98.预制叠合板桁架筋替代马凳筋................................70

99.悬挑板顶部钢筋锚固长度和配筋优化..........................70

100.板支座兔筋优化............................................71

101.双肢箍变拉钩优化..........................................72

1.7其它............................................................73

102.增加构造柱优化............................................73

103.二次结为图纸深化.........................................73

104.构造柱变更芯柱...........................................74

105.结构后植筋优化............................................74

106.砌体拉结筋优化...........................................75

107.超长结阂加设预应力钢筋...................................76

108.楼梯钢筋优化..............................................76

109.后砌附属墙优化为与主体整体施工...........................77

110.构造柱使用U型砖优化.....................................78

111.楼地面钢筋网片优化.......................................79

112.蒸压加气混凝土砌块砌筑工程拉结方式优化..................79

113.CL墙板钢筋优化...........................................80

114.GRC构件转化为现浇结构....................................81

115.地坪钢筋层优化...........................................81

116.钢格栅连接方式优化.......................................82

117.构造柱疔大优化...........................................82

118.砌体结阂圈梁优化.........................................83

119.构造柱减少搭接优化.......................................83

120.管廊外层钢筋节点构造优化.................................84

121.地铁通道侧墙与板节点构造优化.............................85

122.竖向构件措施筋优化.......................................85

123.连锁砌块水平系梁优化.....................................86

124.100X100构造柱配筋优化...................................86

2钢筋放样优化............................................................87

2.1通用部分........................................................87

125.钢筋允许偏差值...........................................87

126.钢筋机械锚固弯钩优化.....................................88

127.钢筋下料合理搭配.........................................89

128.钢筋下料长度优化.........................................89

129.锚固区保护层大于5d时，锚固修工系数为0.7...................................90

130.盘螺或盘圆钢筋数控调直优化...............................91

131.悬挑脚手架预埋环做法优化.................................92

2.2基础.............................................................92

132.独立基础底板配筋长度缩尺10%................................................................92

133.基础梁竖向加腋钢筋选型...................................93

134.基础底板分布钢筋布置优化.................................94

135.取消筏板底筋在桩承台中贯通布置...........................94

136.相同类别条形基础十字相交时受力钢筋布置范围..............95

137.筏板封边构造策划.........................................95

138.封闭箍筋组合承台严禁双开口套插下料.......................96

139.后浇带纲筋优化...........................................96

140.筏板内斜坡水平筋间距优化.................................97

141.集水坑多层网片底筋的计算.................................98

142.筏板变截面钢筋锚固优化...................................98

143.筏板钢筋端头锚固优化.....................................99

144.基础底板马镣筋布置策划...................................99

145.马凳筋借用筏板钢筋......................................100

146.型钢马凳支撑梁代替筏板同向钢筋..........................101

147.承台梁箍筋优化...........................................101

148.基础底板上铁遇型钢柱的变化..............................102

149.斜交筏板钢筋施工优化....................................103

150.桩遇斜坡时增加附加钢筋..................................103

151.桩基钢筋笼自控下料优化..................................104

152.筏板侧面水平钢筋代替侧墙水平钢筋优化....................105

153.桩基钢筋笼加劲箍筋焊接长度优化..........................106

154.基础底板、外墙和楼板钢筋连通设置........................106

155.冠梁箍筋及侧面钢筋优化..................................107

156.标段交接处梁接头优化....................................108

157.承台钢筋接头优化.........................................108

158.跳仓法取消后浇带钢筋....................................109

159.多桩承台钢筋优化........................................110

160.桩芯钢筋代替马凳筋......................................111

161.桩芯钢筋锚入承台基础长度优化............................111

162.多桩承台配筋优化........................................112

2.3柱..............................................................112

163.箍筋化尺寸优化...........................................112

164.带中间层钢筋网片筏基柱插筋优化..........................113

165.框架柱柱顶钢筋锚固长度优化..............................113

166.柱子主扬下料策划........................................114

167.圆柱箍筋的拉筋弯钩优化..................................115

168.柱箍筋复合方式优化......................................116

169.中柱顶层节点策划........................................117

170.暗柱箍筋计算优化........................................117

171,柱插筋圻弯长度优化........................................118

172.圆柱外侧箍筋优化........................................119

173.劲性结阂柱中八角箍筋优化................................120

174.剪力墙约束边缘暗柱优化..................................120

175.柱内箍筋做法优化........................................121

2.4墙..............................................................122

176.基础插筋贯通楼层，臧少钢筋接头..........................122

177.暗柱竖向钢筋下料优化....................................123

178.约束边缘钢筋优化........................................124

179.基础较分时墙体竖向插筋优化..............................125

180.墙体水平筋优化...........................................126

181.人防门框墙加强柱箍筋组合优化............................127

182.剪力墙在筏板基础内部水平构造筋..........................127

183.地下室墙体水平筋放样优化................................128

184.地下外墙变截面钢筋策划..................................129

185.转角墙水平分布筋放样优化................................129

186.人防门框两侧水平筋布置范围优化..........................130

187.剪力墙水平钢筋搭接优化..................................130

188.剪力墙水平筋、连梁腰筋、剪力墙顶暗梁腰筋统一...........131

189.人防墙体钢筋一次到顶....................................132

190.女儿墙锚入楼板处钢筋放样优化............................133

2.5梁.............................................................133

191.框架梁底排筋贯通布置....................................133

192.非框架梁的末端锚固优化..................................134

193.正确理解梁腹板高度，取消侧面构造钢筋.....................135

194.梁附加吊筋的下料优化....................................135

194.梁支座处钢筋放样优化....................................136

195.梁相交附加箍筋数量优化..................................137

196.梁上部贯通筋接头排布优化................................137

197.框架梁内架立筋优化......................................138

198.折梁钢筋布置优化........................................139

199.梁纵筋锚固优化...........................................140

200.框架梁与剪力墙平面外相交节点优化........................140

2.6板..............................................................141

201.负筋尺寸优化..............................................141

202.弧形板板筋间距策划......................................142

203.挑板钢筋优化.............................................142

204.压型钢板钢筋优化.........................................143

205.折板锚固钢筋使用弯折钢筋替换............................143

206.后浇带处优化.............................................144

207.板筋双层双向布置时支座附加筋取消弯折....................144

208.中板角点构造优化........................................145

209.破板自由边钢筋优化......................................146

210.破板拉升钢筋优化........................................146

2.7其它..........................................................147

211.室外楼璟部位钢筋节点优化................................147

212.窗台压顶预制射钉块植筋优化..............................148

213.车站拱墙钢筋长度计算....................................149

3钢筋精算优化...........................................................150

3.1通用部分.......................................................150

214.钢筋弯钩计算方式........................................150

215.避免漏算搭接区的加密箍筋................................151

216.箍筋弯钩抗震优化........................................152

217.钢筋连接方式优化........................................153

218.钢筋比重设置.............................................154

219.钢筋根数设置优化........................................154

220.专冈^^7专苗1^0i十••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••«•••••♦•••••155

221.圆钢端头弯钩钢筋量计算..................................155

222.中柱/墙柱箍筋加密范围计算...............................156

223.温度筋与板负筋搭接长度计算..............................157

224.受压钢筋直径大于25nlm箍筋计算...........................157

225.梁柱.....................................................158

3.2基础...........................................................159

226.独立基础底板配筋优化....................................159

227.底板人防与非人防交界处钢筋优化..........................159

228.筏板钢筋的布筋技巧......................................160

229.用筏板绘制桩承台优化....................................160

230.后浇带附加钢筋...........................................161

231.承台间基础梁的支座设置..................................161

232.后浇带钢丝网骨架钢筋....................................162

233.下柱墩的拉筋计算........................................163

234.分段绘制排水沟...........................................163

235.无梁板带软件钢筋计算优化................................164

236.筏板封边构造钢筋........................................165

237.下柱墩内的马凳计算......................................166

238.柱墩遇筏板变截面时计算优化..............................166

239.筏板附加钢筋优化........................................167

240.人防底板斜坡处缩尺拉筋..................................168

241.筏板放射筋...............................................168

242.复杂集水坑计算优化........................................169

243,集水坑底筋斜坡长度计算...................................170

244.下柱墩、承台遇筏板高差时优化............................170

245.集水坑四周与基础筏板相交处附加钢筋计算.................171

246.坡形独立基础上部钢筋长度计算............................172

247,柱墩钢筋计算..............................................173

248.人防底板拉结筋计算......................................174

249.下返柱敷与集水坑重叠交叉的工程量扣减....................174

250.基础梁遇集水坑加腋部位钢筋计算..........................175

251.基础板带变径钢筋处增加钢筋搭接..........................176

252.筏板基础变截面处锚固长度计算............................177

253.独立基础上层分布钢筋精算优化............................177

254.底板后浇带超前止水大样和后浇带大样分开计算.............178

255.相邻承合贯钢筋单独布筋..................................179

256.后浇带斜坡长度计算......................................180

257.桩间连接筋弯折长度计算..................................180

258.支座设置对钢筋工程量的影响..............................181

259.钢结构基础杯口精算......................................182

260.桩基主筋长度计算........................................182

261.筏板变截面马凳筋计算....................................183

262.上柱墩内柱籁筋设置......................................184

263.人防工程顶板钢筋与外墙节点锚固..........................185

264.承台侧向钢筋两边锚固长度计算............................185

265.基础筏板中柱墩等节点布置算量处理........................186

266.基础梁［JCL)优化为基础连梁(JLL)........................................................187

267.筏板基础附加筋穿集水坑长度计算..........................188

268.集水坑加腋钢筋处理......................................189

269.深基坑筏板多层钢筋计算..................................189

270.承台侧面腰筋弯折钢筋量计算..............................190

3.3柱..............................................................191

271.柱竖向钢筋在楼层间锚固..................................191

272.边角柱在“16G101T”的特殊要求...........................192

273.抗震边、角柱柱顶纵向钢筋构造............................193

274,避免漏算柱子附加钢筋.....................................193

275.螺旋箍筋起始位置应有水平段..............................194

276.柱插筋内水平筋优化......................................195

277.柱墩内钢筋是否扣减筏板钢筋..............................196

278.柱加腋筮筋优化...........................................196

279.刚性地面柱籁筋加密......................................197

280.箍筋排布方式优化........................................197

281.地上与地下分开计算时钢筋甩筋计算........................198

282.外墙与在交接部位附加钢筋的计算..........................199

283.柱顶边、角柱内侧纵筋节点设置............................199

284.最底层墙柱底标高设置对钢筋量的影响......................200

285.短柱封顶节点精算........................................201

286.算量软件圆柱柱顶钢筋弯折计算............................201

287.约束边缘柱拉筋计算......................................202

3.4墙..............................................................203

288.墙身纵向钢筋搭接........................................203

289.剪力墙水平钢筋在暗梁处计算优化..........................204

290.剪力墙右角外侧钢筋连接..................................204

291.暗柱封顶剪力墙插筋优化..................................205

292.墙体变截面时软件的正确处理..............................205

293.连梁拉钩正确处理........................................206

294.连梁侧面钢筋计算优化....................................207

295.软件对剪力墙中特殊节点的正确处理........................208

296.剪力墙水平钢筋拐角处搭接................................208

297.拉筋布置方式优化........................................209

298.连梁内侧面钢筋优化......................................210

299.连梁设置.................................................210

300.剪力墙布置优化..........................................211

301.剪力墙遇框架柱时钢筋计算................................211

302.女儿墙采用墙体绘制时选用纵筋构造........................212

303.托梁墙附加钢筋计算......................................213

304.外墙非贯通筋、砌体墙下加筋等计算优化....................213

305.剪力墙竖向钢筋起步间距..................................214

306.剪力墙上起边缘构件纵筋起步距离计算......................215

307.剪力墙厝柱的保护层取值的问题............................216

308.连梁与暗梁箍筋计算......................................217

309.剪力墙在筏板变截面处锚固钢筋计算........................217

310.人防工程锚固长度计算....................................218

311.构造混凝土墙端部附加纵筋计算............................218

312.异型墙体附加钢筋网片计算................................219

313.地下室外墙迎水面加钢丝网................................220

314.剪力墙钢筋伸入暗柱长度计算..............................220

315.满交剪力墙重叠部分钢筋计算..............................221

316.地下室梁板钢筋植入地下连续墙长度计算...................222

317,墙柱墙梁钢筋保护层优化...................................222

318.挡土墙纲筋计算..........................................223

3.5梁..............................................................224

319.梁支座第三排钢筋长度在软件中的设置......................224

320.梁箍筋加密区优化........................................224

321.带部分抗震墙框架梁箍筋设置..............................225

322.框架梁下部钢筋锚固优化..................................226

323.梁钢筋锚固优化..........................................227

324.多跨梁在高差处支座钢筋锚固..............................227

325.屋面折梁打断布置........................................228

326.悬挑梁上部钢筋节点选择与原位标注........................228

327.主出场高架桥箱梁钢筋结算优化.............................229

328.梁钢筋锚固优化............................................230

329.支撑梁纲筋计算优化.......................................230

330.XL长度计算问题...........................................231

331.梁下部纲筋原位标注手动设置...............................232

332.梁、柱组合内箍筋软件信息输入误区及更正...................232

333.板暗梁、板带暗梁箍筋宽度计算.............................233

334.梁拉钩计算................................................234

335.梁节点处两侧箍筋计算.....................................234

336.悬挑梁弯起钢筋设置.......................................235

337.加腋和框架梁第二排非通长钢筋长度计算.....................237

338.梁加腋处下部钢筋锚固长度计算.............................238

3.6板..............................................................239

339.板分布筋间距计算优化.....................................239

340.板洞附加筋优化............................................240

341.楼层板钢筋分块布置.......................................240

342.隔墙加筋支座锚固优化.....................................241

343.板筋布置优化..............................................241

344.分层绘制板通长筋与负筋...................................242

345.降板节点钢筋计算..........................................242

346.板洞加筋计算优化..........................................243

347.柱上板带下部钢筋在端支座处的做法.........................244

348.楼层板纵筋伸入支座内锚固长度调整.........................244

349.柱帽隔一布一且直径不同时钢筋量计算.......................245

350,柱帽负筋用主筋计算.......................................246

351.现浇板分布筋计算..........................................246

352.现浇板预留管处增加附加钢筋...............................247

353.地下车库顶板、底板钢筋计算...............................247

35