主要檢驗項目
Main inspection items
包括：螺栓du實物更小荷載檢驗；zhi扭dao剪型高強(qiáng)度螺栓連接副預(yù)拉力復(fù)驗；高強(qiáng)度螺栓連接副扭矩檢驗；高強(qiáng)度大六角頭螺栓連接副扭矩系數(shù)復(fù)驗；高強(qiáng)度螺栓連接摩擦面的抗滑系數(shù)檢驗。
It includes: minimum load test of bolt; pretension re inspection of shear type high-strength bolt connection pair; torque inspection of high-strength bolt connection pair; re inspection of torque coefficient of high-strength bolt connection pair; inspection of anti sliding coefficient of friction surface of high-strength bolt connection.
（2）主控項目
(2) Main control items
①鋼結(jié)構(gòu)制作和安裝應(yīng)按GB50205—2001附B的有關(guān)規(guī)定分別進(jìn)行高強(qiáng)度螺栓連接摩擦面的抗滑系數(shù)試驗和復(fù)驗，現(xiàn)場處理的構(gòu)件摩擦面應(yīng)單獨(dú)進(jìn)行摩擦面的抗滑系數(shù)試驗，其結(jié)果應(yīng)符合設(shè)計要求。
① The fabrication and installation of steel structure shall be subject to the anti sliding coefficient test and re inspection of the friction surface of high strength bolt connection according to the relevant provisions of Annex B of GB 50205-2001. The anti sliding coefficient test of friction surface of components treated on site shall be conducted separately, and the results shall meet the design requirements.
②高強(qiáng)度大六角頭螺栓連接副終擰完成1h后、48h內(nèi)應(yīng)進(jìn)行終擰扭矩檢查，檢查結(jié)果應(yīng)符合規(guī)范規(guī)定。檢查數(shù)量：按節(jié)點(diǎn)數(shù)抽查10%，且不應(yīng)少于10個節(jié)點(diǎn)；每個被抽查節(jié)點(diǎn)按螺 栓數(shù)抽查10%，且不應(yīng)少于2個。
② The final tightening torque shall be checked within 1 hour and 48 hours after the final tightening of high strength large hexagon head bolt connection pair, and the inspection results shall meet the specification requirements. Inspection quantity: spot check 10% according to the number of nodes, and there should be no less than 10 nodes; each inspected node should be sampled 10% according to the number of bolts, and should not be less than 2.
③扭剪型高強(qiáng)度螺栓連接副終擰后，除因構(gòu)造原因無法使用專用扳手?jǐn)Q掉梅花頭者外，未在終擰中擰掉梅花頭的螺栓數(shù)不應(yīng)大于該節(jié)點(diǎn)螺栓數(shù)5%。對所有梅花頭未擰掉的扭剪型高強(qiáng)度螺栓連接副應(yīng)采用扭矩法或轉(zhuǎn)角法進(jìn)行終擰并作標(biāo)記，且按上述②條中的規(guī)定進(jìn)行終擰扭矩檢查。
③ After the final tightening, the number of bolts not unscrewed in the final tightening shall not be more than 5% of the bolts in the node, except that the special wrench cannot be used to screw off the plum head due to the structural reasons. Torque method or angle method shall be used for final tightening and marking of all high-strength torsional shear bolt connection pairs whose plum heads have not been unscrewed, and the final tightening torque shall be checked according to the provisions in Article 2 above.
檢查數(shù)量：按節(jié)點(diǎn)數(shù)抽查10%，但不應(yīng)少于10個節(jié)點(diǎn)，被抽查點(diǎn)中梅花頭未擰掉的扭剪型高強(qiáng)度螺栓連接副全數(shù)進(jìn)行終擰扭矩檢查。
Inspection quantity: spot check 10% according to the number of nodes, but not less than 10 nodes. The final tightening torque shall be checked for all torsional shear type high-strength bolt connection pairs whose plum heads have not been unscrewed.
（3）一般項目
(3) General items
①高強(qiáng)度螺栓連接副的施擰順序和初擰、復(fù)擰扭矩應(yīng)符合設(shè)計要求和國家現(xiàn)行行業(yè)標(biāo)準(zhǔn)《鋼結(jié)構(gòu)高強(qiáng)度螺栓連接的設(shè)計施工及驗收規(guī)程》JGJ82的規(guī)定。
① The tightening sequence, initial tightening and re tightening torque of high strength bolt connection pairs shall meet the design requirements and the provisions of the current national industry standard "code for design, construction and acceptance of high strength bolt connections in steel structures" (jgj82).
②高強(qiáng)度螺栓連接副終擰后，螺栓絲扣外露應(yīng)為2～3扣，其中允許有10%的螺栓絲扣外露1扣或4扣。檢查數(shù)量：按節(jié)點(diǎn)數(shù)抽查5%，且不應(yīng)少于10個。
② After the high-strength bolt connection pair is finally screwed, the exposed bolt thread should be 2-3 threads, and 10% of the bolt threads are allowed to be exposed by 1 or 4 threads. Inspection quantity: spot check 5% according to node number, and no less than 10.
③高強(qiáng)度螺栓連接摩擦面應(yīng)保持干燥、整潔，不應(yīng)有飛邊、毛刺、焊接飛濺物、焊疤、氧化鐵皮、污垢等，除設(shè)計要求外摩擦面不應(yīng)涂漆。
③ The friction surface of high strength bolt connection shall be kept dry and tidy without flash, burr, welding spatter, welding scar, scale and dirt, etc. besides the design requirements, the friction surface shall not be painted.
④高強(qiáng)度螺栓應(yīng)自由穿入螺栓孔。高強(qiáng)度螺栓孔不應(yīng)采用氣割擴(kuò)孔，擴(kuò)孔數(shù)量應(yīng)征得設(shè)計同意，擴(kuò)孔后的孔徑不應(yīng)超過1.2d（d為螺栓直徑）。
④ High strength bolts should be freely penetrated into bolt holes. High strength bolt holes should not be reamed by gas cutting. The number of reaming should be approved by the design. The hole diameter after reaming should not exceed 1.2D (D is the bolt diameter).
⑤螺栓球節(jié)點(diǎn)網(wǎng)架總拼完成后，高強(qiáng)度螺栓與球節(jié)點(diǎn)應(yīng)緊固連接，高強(qiáng)度螺栓擰入螺栓球內(nèi)的螺紋長度不應(yīng)小于1.0d（d為螺栓直徑），連接處不應(yīng)出現(xiàn)有間隙、松動等未擰緊情況。
⑤ After the general assembly of the bolt ball joint grid structure is completed, the high-strength bolt and the ball joint should be firmly connected. The thread length of the high-strength bolt screwed into the bolt ball should not be less than 1.0d (D is the bolt diameter), and there should be no gap, looseness and other UN tightened conditions at the connection.
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