Construction plan for sandwich structure of steel structure
The sandwich structure of steel structure belongs to the steel structure of the two structure which is made, installed and sandwich. The H steel is made of Q345B material. The main structure should be laid on the steel floor, and then reinforced concrete pouring at the last 120-200 mm thickness.
The construction of steel structure before measuring the overall level of good structural height (this step using the domestic advanced level of laser measuring accurate position) on the wall pop-up horizontal line, such as leveling layer, to remove, in order to make the frame beams close to the walls, is conducive to the stress, and then draw the accurate position of each bolt hole right, drill hole drill, empty hole Chen Yu dust, implantation of chemical hose, electric tool drill into chemical screw, waiting for chemical reaction and solidification, this time general more than 30min for the most suitable. With curing time, tighten the frame, tighten the screw, the screws force a little welding, to prevent the border relaxed.
The steel in the steel structure as the main load-bearing beam, connecting the main girder ends support, steel structures should be reasonable, the maximum force is part of the whole construction process; main girder must first remove the overlapping position of the embedded steel plate leveling layer of cement plaster, and then fixed and embedded steel steps and frame construction process is basically the same it is a key measure, main beam, beam measurement, the error is not more than 4mm, a certain level on the first lap of girder, welding reinforced after full welding welding welding, the main girder ends do full 360 DEG C, the steel placed vertical force, the same.
Steel structure floor construction
1, the use of steel frame laying galvanized steel floor, after laying, and then tie steel mesh 2 layers, and then pouring coagulation.
2, the use of cement pressure plate steel structure sandwich floor laying, should pay attention to both sides of the floor overlap, to overlap in the steel keel on the main beam, do not overlap in the empty place. Note that the best left 3mm ceiling when the expansion joints between the board and the board, the use of waterproof building glue as expansion sealant. Next, the fixed way uses the self tapping screw bolt to fix, uses the self tapping screw bolt to fix the floor on the steel keel. Finally: after the completion of the laying of the floor with cement mortar screed.
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