Has always been one of the focuses of the people, prefabricated tank as a whole is mainly composed of the base module, the round box module, roof module and installation accessories and so on, mainly by the bolt fastening between the various modules, so you need to analyze the prefabricated cabin wind resistance and bearing capacity, the optimal number between modules need to come to the bolt, by connecting bolts, make each module between more stable.
1, force analysis
The prefabricated cabin has the maximum force when it is hoisted and when the wind force is about 12, so it needs to be analyzed for these two situations.
Under normal circumstances, the prefabricated cabin is transported by trucks, according to the structure stress analysis when hoisting, the largest stress of precast tank when the car turning, according to the regulation, maximum speed when the car in turn cannot exceed 30 km/h, so can draw by calculation, in order to make the precast tank won’t produce deformation on corners, you need to use the side box around about 48,
12 bolts around the end frame to achieve the tightening effect.
In addition to the force during transportation, the prefabricated cabin has to bear great pressure in the case of force 12 wind, the maximum wind speed can reach 34km/h, and the wind is basically concentrated on one side, but the wind direction is not always the same, so each side should be fastened according to the highest standard.
After calculation, the minimum number of bolts on each side should be 48, and the use of M12 bolts can be more effective for fixing.
2. Wind resistance simulation
The prefabricated module also needs to be simulated and calculated against the wind when it is put into operation to obtain accurate data.
The wind resistance and pressure bearing capacity of the prefabricated cabin is mainly studied in the direction of the wind force of the prefabricated cabin. By simulating the force of the wind force of the prefabricated cabin, the deformation of the prefabricated cabin is obtained, so that the maximum stress of the prefabricated cabin is less than the yield limit of the whole steel structure.
By calculation, the maximum stress of the cabin can reach 198.87MPa when the wind reaches level 12. The stress is concentrated, so the deformation is small when the overall stress of the cabin is below 80MPa.
3. Conclusion analysis
Through the various modules of prefabricated tank connection installation, using bolt to fixed between modules, compressive ability, can effectively increase the install bolts evenly spaced, is the key to improve the bearing capacity, power prefabricated tank construction process control is very important, through the calculation of the above, can be concluded that the bolt size and spacing of the need to use,
Precision installation can be done.
Through the above analysis of the wind resistance and load-bearing capacity of the prefabricated cabin, the prefabricated cabin will not cause too much deformation in the process of hoisting and transportation, as well as in the case of excessive wind force, and the corresponding loss will be reduced.
Post time: Apr-19-2021