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Showing results for tags 'Seismic'.
Found 23 results
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Assalam o alaikum. My building has special moment frames and 3 to 4 shear walls. The bay where shear walls are placed, no column is in the bay and beams are coming directly at top of shear wall and for the very specific bay, slab is also resting directly at shear wall at that location. How to d...
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Should we change stiffness modifiers, if a certain shear wall fails. Suppose I have 10X50 shear wall with 0.7 (for f11, f22) and 1 for f12. Now if these shear wall fails in seismic or wind combo for flexure of shear should we change the modifiers to make it pass.
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https://mentorllunji.com/f/towards-a-new-seismic-design encountered an article on linkden
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what is the purpose of assigning diaphragm b4 running analysis of concrete structure in ETABS and what type of diaphragm is required to be assigned to the structure as it shows us two types rigid and semi rigid. what role does these factors governs or play in the design of the structure?
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Hello Engineers So I'm having this 7 story building on a sloped land, the occupied levels will be from zero level (Street level) to +3 level , 4 residential stories. the bottom three -3,-2,-1 are being constructed on three levels in order to avoid drilling and any excavation work, considering...
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Dear Senior Engineer, I can structurally design of Villas, non seismic buildings with help of ETABS, SAFE and manually as well. Now i want to start Seismic Design, Can anyone tell me, from where i should start as a beginner? Anyone suggest me practical design would be appreciated.!! I...
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IRJET-V5I249 (1).pdf
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Hello, One question regarding Collector elements. The code specifies that we need collector elements to transmit the lateral loads from the diaphragm to shear walls or vertical elements.True, but there are cases where we have a flat slab or due to architectural limitations cannot provide beams...
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I need some relative data either papers,books or articles which describes the background of following topic in seismic dynamics: How exponential of complex numbers is related with "sinx+cosx". The result is e^+ix=cosx+isinx and e^-ix=cosx-isinx
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Assalam o alaikum, i m confused whether collectors and chords are only required in Flat plates/slabs or also required in beam slabs? because in beam slab we are having beams at perimeter of every panel and they can act as chords and for diaphragm bending and as collectors at junction of slab t... -
Assalam o alaikum. I have gone through previous posts regarding this topic but still i m unable to get the exact way to check torsional irregularity. What I have concluded through surfing and conversation regarding this topic with some of forum members, I m posting it with uncertainty that I ha...
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First , I am Very Happy to Participate in Forum Such As This Forum , I need to Make Engineering Discussion With These Questions 1. Why We Make Scale Factor Between Static And Dynamic Seismic Analysis ? 2. After Scale Factor We Design By Load Combinations Included Dynamic Cases Only...
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AOA Please tell me what is Design system Rho and Design system Sds?
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Assalam Alikum I am pursuing my fyp on Performance of RC Beam Column joint with effects of steel strips as confinement. My advisor is a post-doc and is not feeding me the basics of it. I will be performing a Quasi-static test and an Ansys model ! Need some advices on online sources or any good...
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hello, I am modeling an RC building using etabs 2013, I need help in several thing: 1- The story shear along X and Y are not equal 2- The deflection in z direction is so large 3- The period of the first 3 mode is very high any help? Thank u
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Can any body give me referrence of clause which is generally used in foundation design that is "33 increase in bearing capacity of soil is allowed under application of wind or seismic loads" -
Salam if we have to increase the area of an existing column of size 24x24 reinforced with 22#8 bars to 36x36, columns has been erected on a 24" raft with 11ft height constructed, columns will be erected two more 11' heights. seismic zone 3. if steel jacketing applied how can the jacketing sizes,...
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I am designing the mosque in which i have different storey levels i-e for praying hall i have 15' and for ablutions store, and room i have 12 ft .It lies in seismic zone 3 .Do i model it on same level .If yes then doesnt it affect the stiffness . If no than doesnt it make the model complcated by ad...
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what will be the direction of earth quake for analysis of buildings in etabs so that the given building has equal resistance to earth quakes from all direction?
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how much it matters to consider all four possible cases of earthquake, when we have building without any irregularity? because it create a bit problem when you have all four cases and it become quite hectic job to bring building in a stabilizing position for all those cases??? i am solving a struc...
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Dear members, does the footings are effected by wind and earthquake loadings?it is said that the wind and earthquake doesn't effect the footings but the superstructure.
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Under what conditions we should use load combinations mentioned under Subject heading in UBC -97? As per my research we should use them only for " Element supporting Discontinuous System"-UBC 97-1630.8.2 and for "Collector Elements"-UBC 97 1633.2.6. So, there is no need to use these combinations f...
