Storage tank bottom flooring

It’s not mentioned in any of the specifications; I don’t think there’s any requirement for it – the main thing is to ensure good coordination with the civil engineering work

It should be a requirement that the overlapping direction is consistent; the specific details are to be determined by the construction party itself.

When arranging large storage tanks, the following points should be taken into consideration: (1) Before cutting the materials, draw a layout diagram based on their length and width specifications. The layout plan shall meet the following requirements: 1) When the length and width of the materials are large, welding seams should be minimized as much as possible ； 2) Arrange the weld positions in axial symmetry to ensure even distribution of welding heat and reduce uneven deformation ； 3) Cross-seam joints are strictly prohibited for the longitudinal and transverse welds at the bottom of the tank; T-joint configurations must be used instead. 4) The distance between adjacent weld joints at various positions on the tank bottom, as well as between the weld joints of the edge plates and the longitudinal welds of the bottom section of the tank wall, must be at least 200 mm. This is to prevent heat concentration during welding from causing uneven deformations. (2) The width of the web in the middle of the tank bottom shall be not less than 500 millimeters, and the length shall be not less than 1000 millimeters ； The minimum dimension of the edge plate in the radial direction of the storage tank is 600 millimeters. (3) When laying the tank bottom plates, it is advisable to first assemble them in smaller units and then combine them into larger areas. The welding stress deformations resulting from the assembly of small units should be corrected and eliminated promptly to prevent excessive stress or deformation when large-scale combinations are formed ； (4) When combining large areas, the spacing between the weld seams at the joints and overlaps should be kept reasonable. If the gaps are too large, more filler metal is required, the welding area is exposed to heat for a longer period, and heat concentration can lead to uneven deformation ； When the weld gap is too small, excessive compressive force is exerted on the base metal on both sides of the weld during heating, resulting in restraint stresses; this also tends to cause uneven deformation ；