Corner joint structure for bridge pier and method of producing the same
AssigneeIHI Corporation
InventorsKoutarou Inose, Hiroto Yamaoka, Isao Kawaguchi, Yasumasa Nakanishi
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Abstract
An end face (20) of one (10a) of two adjacent thick steel plates (10a, 10b) intended to construct a corner joint of a bridge column is formed into a beveled end face (22). Laser beam welding is applied to a root portion (24) of the beveled end face, and arc welding is applied to bevels (26, 28) thereof so that grooves defined by the bevels (26, 28) are filled with weld metal (40).
Claims2
A corner joint structure of a bridge column, constructed by welding an end face of one of two adjacent thick steel plates to a side surface of the other thick steel plate at a lateral end thereof, wherein
- said end face of the thick steel plate is a double-beveled end face having bevels defining a pair of half-V or J grooves open to an outside and an inside of the corner joint structure of the bridge column,
- a root portion of said double-beveled end face is welded by laser beam welding, a size of a root portion measured along a thickness of the thick steel plate being greater than ¼ of the thickness of the thick steel plate, and
- said bevels of said double-beveled end face are welded by arc welding so that the pair of half-V or J grooves defined by said bevels are filled with weld metal.
A method of constructing a corner joint of a bridge column by welding an end face of one of two adjacent thick steel plates to a side surface of the other thick steel plate at a lateral end thereof, comprising:
- a first step of forming said end face of the thick steel plate into a double-beveled end face having bevels defining a pair of half-V or J grooves open to an outside and an inside of the corner joint structure of the bridge, column,
- a second step of applying laser beam welding to a root portion of said double-beveled end face, a size of the root portion measured along a thickness of the thick steel plate being greater than ¼ of the thickness of the thick steel plate, and
- a third step of applying, after the second step, arc welding to said bevels of said double-beveled end face so that said pair of half-V or J grooves defined by the bevels is filled with weld metal.
Dependencies are inferred from the claim text.