五、 地脚螺栓一般都是土建单位埋，钢结构厂家出图，他们有时能把地脚螺栓的位置转了90度，等复查时，已经来不及了；还有尺寸偏差给你来个偏移50~100mm也不希奇。 所以在施工前一定要特别提醒，最好有交底的文字依据。
In the design and installation of the Aluminum Tiangou groove, which safety issues should be noted in the design and installation, in the previous few years, there have been many accidents involving the fall of the Aluminum Tiangou groove, and the improper construction of the Aluminum Tiangou groove has led to accidental casualties, although some of them were accidents., weather reasons, However, most of them were caused by the lack of safety precautions during the design and installation construction. Every detail must be done in the design and installation of colored aluminum trench groove.
First, if there is a colored aluminum trench groove, the tether can not be designed to adhere to the top of the column, otherwise it may result in the failure to install the water pipe. In addition, the position of the falling water pipe and the tether and the support between the columns of the colored aluminum trench grooves must be considered well. Otherwise, they must either touch the tether or touch the support between the pillars.
Second, horizontal support on the placement of basket bolts should be reasonable, do not deviate too much from the main beam, should consider convenient installation. Otherwise, the worker must lean out to tighten the basket bolt or climb the ladder when installing, or it is very unsafe to climb the basket bolt after the purong is installed. In addition, we should also consider the placement of support, and do not fight with support when arranging horizontal support.
Third, doors and Windows, etc. can not be generalized, because in the construction you can not ensure that the plate is located in the pressure plate of the peaks or valleys.
Fourth, do not unilaterally consider the "pull edge, pressure edge" and other factors on the handle of the purlin, playing holes with different upper and lower margins, because it is easy to install the reverse, but the result is unfavorable.
Fifth, the ground foot bolts are generally buried by civil construction units, and the steel structure manufacturers draw pictures. They can sometimes turn the position of the ground foot bolts 90 degrees. When the review is completed, it is too late. There is also a size deviation to give you an offset 50 ~ 100 mm is not surprising. Therefore, before construction must be a special reminder, it is best to have a written basis.