Ahsan Kazmi
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Any structural engineer working in Saudi Arabia or had experience in Saudi Arabia please share some details about structural engineering practice and environment in KSA.
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@Nustian371 can you recommend or share any book regarding PT for beginners? My email is " engrahsanali92@gmail.com "
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Can anyone share the design example or procedure of helical stair?
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Sorry in advance but what i haven't understood from the above discussion is that how we differentiate between the the options that etabs provide us in Mass source tab? If we check the " From self and specified mass" would this be incorrect? If we check the " From self and specified mass and loads" would it double the effect of Mass? Is specified mass is the the one what we have applied as area, point and line loads ?
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Hi All, I am facing following problems in modeling a foundation, please guide 1. I have modeled a foundation in CSI SAFE v8 and exported the same model in safe v12 both programs are showing different values soil pressure and punching shear (difference is slight) but why is that? 2. Safe is not showing the values of punching shear for T-shaped and L-shaped colums why? Thanks
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Abstract is an axiom in philosophy In formal logic It is something that can exist in idea or thought but don't have physical or concrete existence. In dialectical Logic It is something that could exist in thought as well as it has a physical existence. Dialectical logic also defines it as something that is separated from the total or entire. Opposite of abstract is CONCRETE.
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Structural System with small and economical crossection
Ahsan Kazmi replied to Ahsan Kazmi's topic in Concrete Design
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Structural System with small and economical crossection
Ahsan Kazmi replied to Ahsan Kazmi's topic in Concrete Design
I didnot get this? -
Can you please explain how to amplify this value, means what is the formula for getting the amplified value of eccentricity? One thing more if torsional irregularity exists do we need to perform dynamic analysis?
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@UmarMakhzumi This is the plan. as code says if torsional irregularity exists increase by amplication factor Ax. Please guide how to do that in etabs.
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The infinite monkey theorem states that a monkey, hitting keys at random on a typewriter keyboard for an infinite amount of time will almost surely type a given text, such as the complete works of William Shakespeare.
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Echo chamber is a metaphorical description of a situation in which beliefs are amplified or reinforced by communication and repetition inside a closed system. By visiting an "echo chamber", people are able to seek out information which reinforces their existing views, potentially as an unconscious exercise of conformation bias. This may increase political and social polarization and extremism . The term is a metaphor based on the acoustic Echo chamber where sounds reverberate in a hollow enclosure. Another emerging term for this echoing and homogenizing effect on the Internet within social communities is cultural tribalism.
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Only dead and live loads with scale factor 1.
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@Ayesha what do you mean by more general values? Please elaborate? actually i need help in this context.
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I had an idea i was thinking to share it with any student or teacher. Idea is to compare design, economy and durability (pros and corns) of the steel structure based shelter house, load bearing masonry house and concrete frame structure. Actually these systems are sequential in terms of cost(i think). But a detailed study will really help to introduce economical housing in region. Thanks
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@UmarMakhzumi Service combinations.
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Structural System with small and economical crossection
Ahsan Kazmi replied to Ahsan Kazmi's topic in Concrete Design
@Rana and this is the most tough thing to do. -
what is the reason for giving same thickness to wall as that of raft. and what is the reason for giving wall a slab property? Should i export the model from etabs with walls or without walls because later i can delete those walls in safe and reassign them as you said.
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Thanks @Mostafa Ragab but how can i do that. Can you please share steps with me that i have to do in safe.
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Dear All, I am modeling the raft of 11 storey Commercial + Residential building. The Plan of raft is attached in Jpeg format. Problem is that in periphery where basement wall is located and in the locations where shear Walls are modeled soil pressure is exceeding 3 times the allowable soil bearing pressure. The exceeding pressure area is hardly 10 percent of the total raft area. The reactions are even more in center of the raft but pressure is more in periphery. I am unable to understand this behavior. Kindly advise. Pressure Diagram is also attached in jpeg, yellow and red areas are the one where pressure is exceeding. Regards, Ahsan Ali
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AND IF THIS DOESNOT WORK?
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how to control accidental torsion if it is not with the limit of 1.2?
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Dear Members, I am designing 13 storey commercial building. Plot is trapezoidal having larger length in Y direction and shorter in X direction. Due to the shape of plot and building as well i have to introduce shear walls in X direction to control torsion and drift. But client is not happy with the dimensions of shear walls and colum. Can anyone suggest a structural system for designing in which i can economize the cross-sections and control the drifts as well?
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@Ayesha i think by doing so bottom slab will give fixed behavior at joint and produce negative moment. Is this correct understanding?
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Thanks ayesha your response is really helpful. one last thing " what is the effect of top reinforcement of bottom slab if i provide that"?
