Use the theodolite to measure the height of each pour after the completion of the civil works
Quality control measures for steel structure foundation engineering. In general, steel structure engineering uses concrete as the foundation column. The foundation concrete is the same as other formwork construction methods, and the bolts become the key point of quality assurance. Single bolts and each set of bolts The high and low distances closely affect the quality of steel structure engineering in combination, so it is necessary to take a proactive approach. Three steel plates are selected, two of which are 20mm thick as the position where the bolt holes of the steel column bottom plate are pressed, and then the holes are opened, the three steel plates are combined, and then bolted into the holes, the Ф14～Ф16 When the steel bar and the bolt are integrated into one body, it can be used for many times, and the position of the single bolt should be secured.
Before the concrete is poured, the bolts are fixed in place with the theodolite, and then the steel bars of Ф14～Ф16 are welded to the main ribs, and the bolts and the steel bars are fixed on the stencil. This ensures the position of the bolts is Among the sustainable range. In addition, the bolt thread must be specially protected to avoid damage in other processes. After the completion of the civil works, the theodolite is used to measure the height of each casting, and the steel components are additionally tested after acceptance.
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