摘要:
A multi-sheet beam includes sheets pre-shaped and/or pre-formed to have integral features and to cause a final beam shape with non-radiused corners and optimal impact properties when assembled, including beams with constant or varied cross sectional shapes. The non-radiused corners offer excellent impact strength over radiused corners. The sheets are selected to have desired (different) thicknesses and material properties for optimal impact results and low beam weight. To assemble, the sheets are fixtured together and welded to form box beam, such as a two-tube monoleg beam, preferably using welding processes having low heat-affected-zones around the weld. The multiple sheets can include grades of aluminum with high tensile strength well above extrudable grades of aluminum. Alternatively, the multiple sheets can be any grade of steel, such as high strength and ultra high strength steels. The fixturing and assembly technique minimizes capital expense on extruding machines and/or roll forming machines.
摘要:
Method for manufacturing a steel beam (1), in which method base plate (2), web parts (3) and top plate (4) of a steel beam (1) are welded as a beam so that a space (5) for concrete is formed between them. In the method supports (7) are fixed to the base plate (2) at regular intervals in the longitudinal direction of beam (1), to which supports (7) fire steels (8) extending in the longitudinal direction of the beam (1) are fixed, the web parts (3) are installed to the base plate (2) against the supports (7) so that the supports (7) are between the web parts (3), and tightening bars (16) are arranged through opposite air venting holes (10) of the web parts (3). Thereafter, the top plate (4) is placed on the tightening bars (16) between the web parts (3), the web parts (3) are tightened against edges of the top plate (4), the web parts (3) are supported in place against the supports (7) and the top plate (4) for welding, and the tightening bars (16) are removed from the air venting holes (10) before welding.
摘要:
Method for producing a reinforced profile element for supporting at least one wall partition, in particular at least one drywall plasterboard partition, comprising the steps of: providing a preliminary profile element; forming at least one cut-out, in particular a service cut-out, within the preliminary profile element so that the preliminary profile element is subdivided into a profile element main body and at least one reinforcing element having at least a detached portion being detached or detachable from the profile element main body; transferring at least a portion of the reinforcing element from a first position to a second position; and connecting, in the second position, the detached portion of the reinforcing element with the profile element main body in order to reinforce the profile element main body.
摘要:
Double layer wall system comprising: at least one profile element having at least one first fastening surface (21) and at least one second fastening surface (22), wherein an offset (39) is provided between the first (21) and second fastening (22) surface; at least one first wall section (31), in particular first plasterboard being fastened to the first fastening surface (21), at least one second wall section (22), in particular a second plasterboard, being fastened to the second fastening surface, wherein the first (31) and second wall (32) sections are arranged on top of each other.
摘要:
A curved-part forming method includes a bending process in which blanks 1 and 2 having a curved outline corresponding to a curve of a curved part 30 in a longitudinal direction is bent into a sectional shape corresponding to a division portion of a sectional shape of the curved part, and a joining process in which two (or three of more) portions 10 and 20 obtained by the bending process are joined together. In a conventional forming method, when single high-strength steel sheets are used are materials, forming into desired curved parts cannot be achieved by one-piece press forming; or, when single low-strength steel sheets are used as materials, forming into curved parts can be achieved, but the parts lack strength. Therefore, the parts have insufficient strength, as a result of which weight is increased due to an increase in the number of reinforcing parts.