1. large angle high-strength bolts shall be inspected. It is necessary to use a small hammer to knock high-strength bolts for general survey to prevent missing tightening. This method is mainly to clamp one side of the nut with the finger. If the finger feels slight vibration, it should be close to the nut near the washer as far as possible, and then use a small hammer weighing 0.3~0.5 kg to knock the other side of the nut. If the finger feels slight vibration, it is qualified. If the vibration is large, it may be missing or under tightening, and if there is no vibration at all, it is over tightening.

2.扭剪型高强度螺栓连接副的质量控制和验收。因为它的结构特点，在施工中梅花干的部分承受的是反扭矩，所以梅花头部分拧断。也就是说螺栓连接副已经施加了相同的扭矩。所以在检查的时候只需要目测梅花头拧断就算是合格。但是在个别部位的螺栓无法使用专用的扳手，则需要按照相同直径的高强度大六角螺栓的检验方法来进行。在高强度螺栓安装和施工的过程中，难免会有所忽视或者遗漏。所以在安装完成之后需要对其进行详细的检查，那么在检查的时候我们应该需要注意哪些内容呢？

2. quality control and acceptance of torsional shear high-strength bolt connection pair. Because of its structural characteristics, the plum blossom stem bears the reverse torque during construction, so the plum blossom head is broken. That is to say, the same torque has been applied to the bolt connection pair. Therefore, it is only necessary to visually check that the plum blossom head is broken during inspection. However, if a special wrench cannot be used for bolts at some parts, the inspection method for high-strength large hexagon bolts with the same diameter shall be followed. In the process of installation and construction of high-strength bolts, it is inevitable to neglect or omit. Therefore, it is necessary to check the installation in detail. What should we pay attention to when checking?

1.指派的质检员按照规范的要求对整个高强度螺栓安装工作的完成情况进行认真的检查，然后将检查结果记录在检验报告中，然后将检查报告交送给项目负责人进行审批。

1. appoint professional quality inspectors to carefully inspect the completion of the installation of the whole high-strength bolt according to the requirements of the specification, and then record the inspection results in the inspection report, and then submit the inspection report to the project leader for approval.

2.扭剪型高强度螺栓在终拧完成之后进行检查时，以拧掉尾部为合格，螺栓丝扣外露应该为2~3扣，其中允许有10%的螺栓丝扣外露1，扣或4扣。

2. when the torsional shear high-strength bolts are inspected after the final tightening, it is qualified to screw off the tail. The exposed bolt threads should be 2~3 threads, of which 10% of the bolt threads are allowed to be exposed by 1, 4 threads.

3.对于因为构造原因而采用扭矩扳手拧紧的高强度螺栓，那么应该使用经过核定的扭矩扳手，用转角法来进行抽检。

3. for high-strength bolts tightened by torque wrench due to structural reasons, the approved torque wrench shall be used for sampling inspection by angle method.

4.扭剪型的高强度螺栓连接副终拧之后，除了因为构造原因无法使用专用扳手终拧掉梅花头者外，没有在终拧中拧掉梅花头的螺栓数不应该大于该节点螺栓数的5%。

4. after the final tightening of the torsional shear type high-strength bolt connection pair, except for those who cannot use a special wrench to remove the Torx head due to structural reasons, the number of bolts that do not remove the Torx head in the final tightening shall not be greater than 5% of the number of bolts at this node.

5.高强度螺栓的安装检查需要在终拧一个小时以后，但是需要在24小时之前完成。

5. the installation inspection of high-strength bolts shall be completed one hour after final tightening, but 24 hours before.

6.对于采用扭矩扳手拧紧的高强度螺栓，在终拧结束之后，检查漏拧，欠拧的应该采用0.3~0.5千克重的小锤来逐个敲检，如果发现有欠拧，漏拧应该进行补拧，超拧的话应该更换。

6. for high-strength bolts tightened with torque wrench, after the final tightening, check the missing tightening. For those under tightened, use a small hammer weighing 0.3~0.5 kg to knock one by one. If there is any under tightening, the missing tightening should be supplemented. If there is over tightening, it should be replaced.

7.要做好高强度螺栓的检查记录，在整理之后归入技术档案。

7. the inspection records of high-strength bolts shall be made, which shall be included in the technical archives after sorting.

虽然说现在的钢结构发展很快，但是对于一些基础施工的方式方法还不是很了解。现在就针对大六角头的高强度螺栓的连接施工中，是需要针对不同的扭矩系数采取不同的方式方法来进行施工，那么我们在工地上常见的施工方法一般由哪些呢？今天小编就来详细给大家介绍一下。

Although the current steel structure is developing rapidly, some methods of foundation construction are not well understood. Now, in the connection construction of high-strength bolts with large hexagon head, different ways and methods need to be adopted for different torque coefficients. What are the common construction methods on the construction site? Today, I will give you a detailed introduction.