Steel Beam Web Opening Spreadsheet

The second worksheet goes through the same check as the first and then determines what reinforcing is necessary.

Steel beam web opening spreadsheet.

Steel beam web stiffener analysis for concentrated loads per 13th edition asd. Steel beams with web openings version ii 28 4 x the best location for opening is where the shear force is the lowest. V u m u factor. I based this program from alex tomanovich s stiffner spreadsheet but updated it to the 13th edition.

This workbook determines whether a steel beam with known loads and hence known moments and shears can have web openings added. Expressions are given for the design. Pedro antonio jiménez sánchez name. However when the opening size shape or location no longer meets these conditions beams with web holes may be designed and detailed using the method given in part 5 of the handbook of steel construction.

X the diameter of circular openings is generally restricted to 0 5d. Unstiffened opening length l o max. However existing methods are either based on the restricted patterns required for the fabrication of cellular beams or limited to fabricated beams only. Cut to a profile along the web and re welded to form a regular pattern of web openings and plate girders fabricated from three steel plates where the holes are cut in the web plate before welding the beam.

Stiffened opening length l o 1 5 h o high shear 2 5 h o low shear 2 5 h o high shear 4 h o low shear. Aisc design guide 02 steel and composite beams with web openings author. The steel construction institute sci 1 2 has covered the design of beams with web openings and software is available for cellular beams as well as for fabricated beams. Aisc design guide 02 steel and composite beams with web openings length.

The clear spacing between such opening. Custom shape american shape steel and composite beams with web openings steel design guide 2 aisc reference. It is preferable to provide an upward positive eccentricity of the opening in the web depth. X depth of rectangular openings should not be greater than 0 5d and the length not greater than 1 5d for un stiffened openings.

The handbook method based on the work of redwood and shrivastava 1980 is applicable to class 1 and 2 sections with opening between 0 3. T b forces kips kips in. Analysis of beams subjected to concentrated loads determines if web stiffeners are required per aisc 9th edition asd manual alex tomanovich. Asymmetry of opening position can cause web post moments.