浅谈大型油罐底板排板方式

结合大型油罐施工经验和焊接原理，通过对油罐底板排板的搭接Ｔ字形排板、搭接井字形排板，搭接条形排板，搭接十字形排板，对接Ｔ字形排板，对接十字形排板６种排板方式的对比，分析，讨论了它们自的优缺点，证明了罐底排板方式的不同，会直接影响罐底板的变形和应大小及方向，应力方向不同，存在于底板内部的应力大小也不同，因而导致变 形的程度就不同，在油罐底板排板中，三层板搭接Ｔ字形接头变形量最大，搭接接头变形量次之，

Elementary Introduction on Method of Arranging Bottom Plates for Large Oil Tanks.

In the light of the construction experience and welding philosophy of large oil tanks, introduced here in the paper are the mechanism of steel plate deformation. comparison and analysis of the advantages and disadvantages are carried out on the following six kinds of plate arranging methods, namely: "T"type. lap welding; "#"type. lap welding; "strip" type, lap welding; " "type, lap welding; "T"type, butt welding and " " butt welding, which prove that different plate arranging will directly affect the bottom plate deformation and stress extent/direction. Different stress directions cause different stress extent within the bottom plates themselves thus resulting in different extent of deformation.It is pointed out that three layer lap welding with "T" type will cause the most deformation, lap welding causes less deformation but more than butt welding, therefore multi-player with lap welding should be avoided in the arrangement of bottom plates of oil tanks.