1. If there is a gutter in the steel structure engineering, the tie rod cannot be designed near the top of the column, otherwise the downpipe may not be installed. In addition, it is necessary to consider the position of gutter downcomer and pull rod and the support between columns, otherwise it will encounter the support between pull rods or columns.
2. In steel structure engineering, factors such as "tension and compression" of purlin bracing holes should not be considered unilaterally, and the upper and lower margins of punching holes are different, because it is easy to install the wrong edges and the effect is not good.
3, when doing large steel structure engineering, deepening the drawing number needs to consider the convenience of production, transportation and installation.
4. The position of high-strength bolts in steel structure engineering should be reasonable, and the structural space of torque pliers and torque wrenches should be considered. Don't install it, because the space is too small, the torque breaker and torque wrench can't be in place, etc. , so that the Torx head of the high-strength bolt cannot be unscrewed or tightened.