The location of high-strength bolts should be reasonable, and the construction space of the torque wrench and the torque wrench should be considered. It is not necessary to install the high-strength bolts because the space is too small and the torque wrench and the torque wrench can not be in place, resulting in the failure of the high-strength bolts to break the box head or tighten the high-strength bolts.

If possible, the high-strength bolt connection plate should be arranged symmetrically from top to bottom.

Light steel structure workshop If there is maintenance of brick wall, it must be well connected with the construction unit and civil construction unit in advance, because it involves two aspects of civil engineering and steel structure, because the brick wall of civil engineering is likely to be uneven and straight, but the flashing of color steel plate is impossible to be large or small, as a result, the gap between color steel plate and brick wall is large or small, and it is difficult to do well in the flashing treatment of color steel plate and brick wall Therefore, civil engineering is also very important, so that the construction unit has psychological preparation.

It's better for the steel structure manufacturers to install the anchor bolts themselves. Sometimes they can turn the position of the anchor bolts by 90 degrees. It's too late to recheck. It's not surprising that there is a size deviation of 50 ~ 100 mm for you. Therefore, before the construction of steel structure engineering, we must give a special reminder, and it is better to have the text basis of disclosure.

The connection between wind resistant column and steel beam adopts spring plate connection, because the beam of middle span has large deflection after installation. If the beam of gable is connected with wind resistant column by bolts, the roof of steel structure workshop will be uneven.

The layout of roof purlin and the detailed drawing of steel beam should be checked carefully. It is often found that the number of purlin in the layout of roof purlin is not consistent with that in the detailed drawing of steel beam.

The gusset plate has no stiffener, which leads to the deformation of gusset plate during subsequent welding.

When the beam column is used as the tie bar connecting plate, the hole is not extended properly. In some places, because the connecting plate on the tie bar is too long, the space is too small and the tie bar is too long to put in. This is often the case in some secondary beam structures.

When making the strip window, the stiffening rib of purlin support plate faces the window direction, so when the strip window comes to the rib plate, it can't go past. In addition, countersunk screws should be used when installing purlins with strip windows.