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It is a mistake by the concrete contractor. He constructed the pedestal+anchor bolts with 100 mm offset by referring to old drawings. The steel contractor brought the steel columns with revised drawings.

The contractor is proposing CJP.

Dear All Are there any specifications for the distance between splice. The contractor erected the column 100 mm outside with a stub. He also brought the beam with its original length. Now asking for a splice of 100 mm length. Beam is HSS 500x400x tk. Usually, we will allow the splice Depth or...

Dear All How to compute wind load for triangular-shaped building. please provide some reference Regards M.S.Boobathi

Thanks Mr.Kootk 1.The section is supporting beam. Refer the sketch attached 2.The weld used is 7 mm Partial Penetration Butt weld continuously Design of weld between web and Flange RHS 300x120x16x12 3).This is beam supporting secondary beams in diagonal pattern of concave pattern. The member...

Dear All Thanks. I have few more questions on this 1) it is a built up box of RHS 300x120x16x12 2) Do we need to consider Axial force in the member . If not why. Any references for the same 3) If there is torsion how to consider as a part of built up weld Regards M.S.Boobathi

Dear All I request to share valuable experience about "How to provide Connection design forces on Drawing ". This takes long time OR is it acceptable practice the structural model Regards M.S.Boobathi

Thanks for All. It is roof skylight member already surrounded by Permanent building -No possibility for expansion The vertical shear max is only 400 mm i can mange with 5 mm(Wall thickness 12mm) Partial penetration Butt weld . Where as capacity demands almost equal to FPBW...

Dear All I am designing the weld for Built up box RHS 300x120x16x12 ( subjected to Axial force +small flexure) The shear capacity = 2*0.6*0.9*fy*t*D = 2*0.6*0.9*355*12*300 = 1380 kN Equivalent horizontal shear =Vmax*1000 *AF/I = 1380*1000N*[120X16]*150/116009344 = 3426 kN Required fillet weld...

Thank you verymuch

Dear All There are procedures to calculate the shear studs in plate reinforced coupling beams I couldn't see such requirements in Steel reinforced coupling beam. Are they not required. Can i get reference (AISC /ACI) for designing steel reinforced coupling beams Regards M.S.Boobathi

Dear All I am checking a HSS punch plate welded connection for the revised forces . i need more weld is acceptable to provide 18 mm weld with punch plate where as the wall thickness is only 16 mm...

Dear All We are designing a different building skylight !! with inverted curve in both direction as attached . how to calculate the wind speed ? Regards M.S.Boobathi https://files.engineering.com/getfile.aspx?folder=a24dd4c0-df35-46ce-b3f0-0d88d57182b1&file=WIND_LOAD_QUERY.png

The Reply from AISC : Thanks to AISC Hello, I can only find one design example that is based on Section D5 of the AISC Specification, example D7: https://www.aisc.org/publications/steel-construction-manual-resources/#37583. Engineering judgement must be exercised when determining the...

Dear All Any one modeled simple beam to core wall connection Regards M.S.Boobathu

Dear All I would like all to share their experience how to share Group the forces when there are lot of steel members and combinations . How to present in drawing format ? Is there any simple consistent approach Regards M.S.Boobathi

Dear All 1) Is there any reference to design PRC Coupling beam with openings Regards M.S.Boobathi https://files.engineering.com/getfile.aspx?folder=4a887d45-d04f-4a2a-9115-0076e4a7e4e3&file=Opening_in_coupling_beam.PNG

Dear All I am designing Pin connection as in attached figure. please share as reference (AISC-LRFD ) connection design example/ Spread sheet for pin connection+base plate Regards...

Dear Engineers Please suggest me method or reference to calculate wind load for curved sign board attached to building as in attachment Regards M.S.Bhttps://files.engineering.com/getfile.aspx?folder=71e52609-1eb4-40ba-bac6-8465ae9a50be&file=Sign_board_Wind_load.png

Dear all I am designing a post fixing connection for Mezzanine steel beam to existing concrete columns the post fixing connection fails ? Can any one share a better idea ? column size 500mmx500mmX6mheight Factored shear force on x direction beams = 100 kN Factored shear force on x...