We should not only learn to install the products, but also learn to install other things of the products, so that we can use them more conveniently. Steel structure engineering is the same, so what are the installation methods of high-strength bolts in steel structure engineering?

    1.After the hoisting of a construction section is completed and the steel structure forms a stable frame unit, high-strength bolts are installed.

　2.Attention should be paid to the direction when installing the torsional shear high strength bolt: the washer of the bolt is installed on one side of the nut, and the side with chamfer of the washer hole should contact the nut.

　3.The bolt penetration direction shall be subject to the convenience of construction, and each node shall be neat and consistent.After the high-strength bolts are threaded in and tightened with spanners, the temporary bolts are removed and replaced with high-strength bolts.

　4.High strength bolts must be tightened twice.The first time is the initial tightening: the initial tightening is tightened to 60% – 80% of the standard axial force (i.e. the designed pre tension).The second tightening is the final tightening. When the final tightening, the plum blossom chuck should be screwed off.

　5.The bolts after initial tightening shall be marked for confirmation.In order to prevent missing tightening, the high-strength bolts installed on the same day should be finally screwed on the same day.

　6.The initial tightening and final tightening should be conducted from the middle of the bolt group to the surrounding symmetrically.

　7.Due to the narrow space, it is not suitable for the high strength bolt spanner to operate, so the casing can be raised or the manual wrench can be used for installation.

　8.The end of the final screwing is the end of twisting shear type high strength bolts by screwing off all the tail plum blossom clamps.

   The above is a small edition for you about the steel structure engineering high strength bolt installation method has what related content, hope to bring you help, if you want to know more, please continue to pay attention to us, please consult steel structure engineering for details.