Supposed we have a long beam , there's an opening along teh span of the beam.
My question is how to calulcate the bendign moment capacity of the beam at the opening location.
1.) Does it still act as the deep beam with effective depth of hb + ht + do ?
2.) Or the part where the beam is on...
I am able to see all lines properly in dxf files. However , when I imported the dxf file into Etabs, some of the lines disappeared. How to resolve this? Tried to resave dxf files many times, problem persists. I am sure that I only have 3 layers in my dxf files, beam, wall and slab
Say that the d = 300, last peimeter of shear link required is at 700mm from the column face, the 1st shear link perimeter is at 0.5d = 150 from column face. Subsequent shear link at 300mm, 450mm, 600mm away from column (Radial spacing limit = 0.75d = 225mm) . now the question arises, Can i...
During the design of basement, why do we need to consider the uplift of the basement subjected to hydraulic uplift ?
When the excavation happen, watertable drawdown occur at the exacavted part.
When the excavation finished, the watertable already at the base, why the basement will be...
In flat slab system, say that the total length is 48m x 24m, column with drop panel with spacing of 6m... In this case , main bar outermost top bar (T1) and outermost bottom bar (B1) should be parallel to the 24m , right?
I came across an example that main bar T1 & B1 is parallel to 48m...
Can someone help to explain the shape of the shear force diagram? Here’s a box culvert model subjected to UDL on top slab. The box drain is supported by pile below , which model as spring, the bottom slab is supported by line spring as well.
Here’s the result of the analysis. I found that in...
Is there anyway to overwrite the design to become column design ? I have assigned column at the designated location. However, it turned out that some of teh column design becamne beam design. That's weird , is there anyway to overcome this ?
Can any one help to explain the difference between the ULS ovt LF and ULS LF selfweight ? Is it the partial factor for action or partial factor for resistance ?
for the circled red part, LF ULS represent the partial factor for action of ULS state, right ?
LF ULS ovt represent the partial...
When I opened the previosly saved plaxis file, it all became academic version, I ended up can't access the file . Is there anyway to access the previously saved file ? I am using the advanced 21 version, not any academic version, why it will become academic version suddenly?
I read it somewhere that the X bracing is only designed to take tension not compression why ? I knew that when the steel is subjected to compression, it tends to buckle, so the steel will be generally weaker when it's subjected to compression especially when the span is long. But X bracing is...
Is there any possibilities that the neutral axis fall inside the flange ? If it’s possible , I think we shall design it as T-beam /flange beam ? This text stated that for T-beam at support, we shall design it as rectangular beam. Can someone explain on this?
Is it possible to solve this using the free body diagram? Or anyone can show how to solve this ? The moment at joint D due to 8F is 16FL, due to 4F is 4FL. Any other simple way to solve this without using the moment distribution method with considering the relative stiffness?
Say that I have a slab supported by 4 columns and the base is raft foundation. I have assigned area spring in compression only below raft.
I found that when the area spring is higher, the reaction of the column will be higher as well. I think this is incorrect, because the reaction of column...
SAFE2016 is taking too long to prepare the analysis model. It kept stcuked at preparing to run analysis . How to resolve this ?
When I set SAPFire options to Advanced solver with Auto, the whole model cant run at all. How to resolve this ? Tried to run the similar model on another
PC...
The horizontal beam is simply supported. I have assigned pinned to released the moment at the both ends. However, there's moment spike near the end in ETABS, what's the problem ? I have checked thru the model and couldnt find any problem related to it .
The correct BMD shall be blue (sagging...
In Etabs, when I draw beam and intersect at wall, should we intersect the beam at the edge of the wall or at the centerpoint of the wall ? Which is the correct way?
https://teklastructuraldesigner.support.tekla.com/webhelps/tsd/2018/IS/User_Guides/TSD_User_Guide/Analysis_Modeling_Handbook/Rigid_Zones_Example_2_-_pin_ended_beam.htm#XREF_60955_Rigid_Zones
Why for pinned end continuous beams subjected to UDL, the sagging moment tend to decreases when rigid...
https://www.youtube.com/watch?v=imznVQh5QXQ&ab_channel=EngineeringWorld
In this video , at 22.00 to 24.00 minutes, the author assign different slab thickness to make the punchign shear design os slab pass. Just wondering, why when the author increased the thickenss of slab, the compression on...
Say that a simple building is supported by 4 columns , the column sitting on base slab. I assigned some sort of area spring to the base slab. When the area spring assigned is higher, this cause the compression of the column to be higher. I have 2 models, one showing the bending at beam/column...
