Search the Community
Showing results for tags 'Diaphragm'.
Found 12 results
-
As salamu alikum, What is the difference between of shell diaphragm & Joint diaphragm? Can anyone tell me the criteria for appropriate situation for different diaphragm application? Thanks in advance
-
In etabs, While assigning diaphragm to a story, we assign it to floor slab only of that story or even to beam in the story?
-
When a slab is designed in ETABS or SAP2000, usually the Membrane and diaphragm value is assigned to it. One of our structure designing professor assigned values of both membrane and diaphragm same and told us that, this will be always constant and same. I am a bit confused why so? What actually the...
-
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?
-
Hi I want to know the use of diaphragms in etabs. i discus many people who are use etabs but i can't get justified answer about the application of etabs. I read the Technical reference of Etabs, where they write about Diaphragms. i get two type of diaphragms (plate or shell and joint or...
-
What is difference between Rigid and Semi rigid diaphragm. I think if we assign semi rigid, We don't need to consider accidental torsion i.e 5% eccentricity. If we assign rigid, we must consider accidental torsion. And next question is difference between XCM and XCCM in case of rigid diaphragm. What...
-
aslamwalekum to all, when we need semi rigid diaphragm , i normaly take rigid diaphram for beam slab system , i got a vetting project (model made on ETABS 2016) , in which flat slab are used and semi rigid diaphram is assign , A/c to IBC 2006 , concrete slab with thickness more than 1.5 in , no...
-
Dear All, Could anyone suggest me assigning diaphragm like assigned in attached pic is correct for this building. If it is correct then how could we apply torsional irregularity in static load cases (earthquake case eccentricities override). I can calculate and apply it in simple building but i...
-
While purpose of assigning diaphragm is to transfer inertial forces during earthquake to vertical members . There is general practice which I am following for quite a long time, that we most of the time don't consider inclined members like stair and ramp. i model them as horizontal slab. I have re...
-
*SEFP Consistent Design* *Diaphragm Flexibility* *Doc No: 10-00-CD-0004* *Date: August 07, 2014* I am writing this article about a very important, but mostly neglected topic of flexibility of diaphragm. I used to assume that all reinforced concrete slabs can be treated as rigid diaphragms. But as i...
- 4 replies
-
- 9
-
-
- diaphragm
- diaphragm flexibility
- (and 2 more)
-
Assalam o alaikum, ACI 21.11.1 tells about diaphragms in seismic zones. My building is in zone 4 and it is frame structure. i have provided SMRF. Is my slab going to act as Diaphragm? Since diaphragm means elements that transfer horizontal forces to vertical elements. and slab becomes cause of majo...
-
Can anyone tell me while assigning the diaphragm when we have to choose the semi rigid or rigid. What exactly it does with the structure in ETABS? As far my understanding I am applying rigid diaphragm for concrete structure and semi-rigid for steel structures / car park structures. Regards
.thumb.jpg.700916fbc7ead330085e15745d0270bd.jpg)
