Can any one recommend a good flowable concrete mix and slump value for use in the mass concrete underpinning of a 12 inch concrete wall with a 24x12 spread footing? (4000psi minimum)
I was asked by a reviewer to analyze and determine the minimum weld length X of a 5/16 weld of a column reinforcement in the attached pdf.
The column reinforcement is an existing jib-crane plate doubling as a cover plate and an added channel cover that overlaps.
Does anyone know how to go about...
Can an axial compression member be slender and the same member be compact in flexure? Or once it is slender is it automatically non-compact or considered a slender element?
Does anyone have experience with expansion loops for 100psi direct buried steam piping and could they share how that works? I am being asked to design a 250ft run between two vaults with one 90 degree elbow.
Can anyone provide me with a decent insulation and jacket schedule for exterior steel piping ranging from 1.5 to 6 inches diameter and transporting glycol mix at 20 deg F? Outdoor temp is 110 deg F max.
Can anybody provide me with a clear narrative understanding of the difference between 360-10 CHAPTER E COMPRESSION E.4 "Torsional and Flexural Torsional Buckling" and 360-10 CHAPTER F - DESIGN OF MEMBERS FOR FLECTURE "Lateral Torsional Buckling"? What is the difference and is there redundancy...
Does anybody know a method for determining "rt" in AISC 360-16 Formula F4-8 for Lateral Torsional Buckling for the beam shape below?
The top flange is in compression, The combined shapes are an S24x105, C10x15 and a 7/8x12...
Can anyone tell me where I can find the section properties of an old S24x105. 1918 vintage?
I am only able to find sections that are very close in my historic manual collection (S24x106, S24x104.5, etc.)
Is anyone able to help me decipher the the reinforcement and stirrup call outs in the beam schedule in the uploaded pdf?
https://res.cloudinary.com/engineering-com/image/upload/v1548442980/tips/12-201_pxy5dd.pdf
