Hi all
Does ASCE7-16 allow reduction of drifted snow on sloped canopies,
As far as I know, the drifted snow load is the same for flat and sloped canopies.
Regards
Hi all
For lumped plasticity model of a column or a beam the plastic hinge stiffness is 6EI/L (assuming double curvature).
My question is how to derive this equation? and what is the stiffness for a singe curvature (cantilever)?
Thanks
Hi all
In fema 273 and ASCE 41, the modelling parameters and acceptance criteria of concrete flexure members are given as rotations.
I do not know what is meant by rotation. is it the rotation of the plastic hinge or the chord rotation of members (Drift/L).
Hi all
I am planing to use ANSYS for my research.
Before I begin I need to know whether it is possible in ANSYS to change the Script? In other words I need to create a new material with specific stress-strain relationship , is that possible in ANSYS?
Thanks
Hi
What are the symptoms of tension loss of post tensioned beams.
I have several beams to be checked for tension loss. in one of them there is a horizontal crack in the web, is this one of the symptoms of tension loss.
Thanks
After analyzing a concrete roof slab , some of what appear as simply supported beams ( single span beam supported at ends by main beams ) the negative moments were much higher than the mid span moment ) , That happen because all connections between beams were assumed to be rigid , shall...
I am designing foundations and concrete ground beam for a pre-fabricated steel structure ( single story 40m x120m), the beam is 0.6m high and should support a hollow block cement wall, 3m high , the upper 0.2m of the beam is above ground level
my question is about the expansion joint , the...
In a reinforced concrete buildings project, the contractor casted about 150 foundations with 6 ?14mm starter bars for the columns, at a later stage it was found that the reinforcement in some columns has to increased to 6 ?16mm, the first proposition was to add dowels by drilling and epoxy, then...
Hello all
In a reinforced concrete structure, is it ok to connect earthing cable to the foundation reinforcement, I think this will induce electrochemical corrosion; I looked through ACI222r and found nothing in regard. .
I have parking area under construction, the water table is high, about 1 m deep , the compacting machines sinking about 25 cm when operated in the area , and the water is going to the surface ,, any advice,,
house with spread footings, I wanted to use U shaped reinforcement for the footing, the contractor wanted to use straight reinforcement, would any one please let me know if there is any standard specification that require u shaped steel,, BS or ACI , just refer to the number of the spec.
Hi All
I have an Urban streets design of hilly area, the designer wanted to reduce the cost and followed the natural ground, with minimum cut and fill. As a result there are many vertical curves one after another. I couldn't find any Standard specification that determine the minimum distance...
a new 44m long concrete building with expansion joint to be put vertically in the middle of the building ,
is it ok to make the joint in the walls , columns and slab, but keep the foundations connected
a roof truss with a span of 35 meters ,it will be supported on two concrete columns , the design was carried out assuming one support is pin and the other is roller ,but in the construction drawings 'the attached drawing' both ends are bolted down ,,is that ok , I have some concerns about this...
what is the effect of having two different yield strengths of bars in the same concrete section , what to do when designing the section ... if the smallest yield strenth to be considered, what about the elastic modulus
what is the effect of having two different yield strengths of bars in the same concrete section , what to do when designing the section ... if the smallest yield strenth to be considered, what about the elastic modulus
