Hi to all,
does exist any AISC required about rolled heavy shape strength reduction as for EN 1993 code (for flange with a thickness > 40 mm)?
Thanks.
eng. FERRARI Alberto - www.ferrarialberto.it
Ok, thanks.
I think that §15.3 chapter is not applicable to column-foundation section but I have some doubts about this problem...
eng. FERRARI Alberto - www.ferrarialberto.it
Hi to all,
in chapter §15.3 of ACI 318-14 are present rules about the transfer of axial force of column through the floor system, when the compressive strenght of concrete are different for more than 40%. The same rules have to apply also in column to foundation joints?
Thank you in advance...
Thank you PSEPK.
I had already read the 11.7.2.3 section, but no clarification about 0.2% limit is present (are presents only detailing rules for walls with thickness major than 10").
Can you explain to me if required horizontal reinforcement is 0.1% for each face of wall (then 2x0.1%) or...
Hi to all,
I would need to know if the limit of 0.2% indicated in table 11.6.1 of ACI 318-14 for horizontal reinforcements wall (1st row, cast in place, deformed bars, bar size <#5, fy>60 kpsi) is relative to each of two side of wall or if this limit is relative to total (then 0.1% for each...
The beam rotation at the support is ql^3/(24EJ). The eccentricity of reaction and the distribution of stress in the column depend of support detailing.
Hi.
ing. FERRARI Alberto - www.ferrarialberto.it
"Low heat of hydration mix design and temperature controls are a minimum." I agree, absolutly. Is necessary to use a large pieces of gravel.
A thickness of 6 feet of concrete can cast in place in three phases, with intermediate horizontal reinforcement.
ing. FERRARI Alberto - www.ferrarialberto.it
It's probable that the collapse occurred due to a differential thermal variation between steel and concrete.
ing. FERRARI Alberto - www.ferrarialberto.it
What is the distance from center of anchor bolt to each cracked corner? And what is the diameter of anchor bolt?
Hello.
ing. FERRARI Alberto - www.ferrarialberto.it
For concrete with strength up to 50 MPa the cylindrical strength (fck) is about 17% lower than cubic strength (fck,cube). Example, concrete grade C30/37: fck = 30 MPa, fck,cube = 37 MPa, fck = 0.83 fck,cube (approximately).
ing. FERRARI Alberto - www.ferrarialberto.it
If the element is locked at both ends, even for the axial load is valid the rule 20-35/55, as long as the axial stiffness EA/L is constant along the rod.
ing. FERRARI Alberto - www.ferrarialberto.it
