Is there any software that can Model a masonry vault or arch as shown in the picture attached ?
And if anyone can help me on how to check the stability of such element ? (any reference, books or articles are very much appreciated)
When I Model a Shear Wall in Etabs and at both end of the shear wall I model a Column, After Running The Analysis and see the design of the Columns I notice that always I have a High Percentage of rebar needed for the columns, is it normal that the columns play the role here as boundary elements...
Hi, I modeled a 44 story building in ETABS and I want to design its foundation on SAFE, the foundation consists of MAT on Piles, I must say that all my supporting elements consist of shear walls.
The mat foundation (concrete f'c 35 MPa) 2 m thick and having punching shear reinforcement around...
I forgot to add that there is a groupe of pile under the mat foundation of 0.8 m diameter and having a distribution of 10x15 (rectangular distribution)
I have a mat foundation on a pile foundation (150 piles with a mat foundation 23*36 with a pile of 80 cm diameter and a length of 30 m) I checked the mat foundation in SAFE and I checked the piles for axial load, but I need to check the piles for seismic loads (lateral loads), How to model the...
I have a raft foundation and a 44 story building with only shear walls as vertical elements and I am using ACI318M-11, I checked the punching shear of these shear walls as the following picture shows, I took Pu (the ultimate vertical load on the shear wall) to find the effective thickness d. (if...
actually I am reading a book called "prestressed concrete a fundamental approach by Edward G.Naway" but it doesn't tells the difference between the two and I was confused that if P/A is force/Area that means stress if i limit the stress in concrete to 400 PSI as recommended by the thread in the...
thread507-312949 In this thread there was a talk about precompression maximum value, can anyone explain to me what is the difference between precompression and compression in the upper fiber that is checked in the transfer stage ? (ACI 318/318R-8 clause 18.4.1 states that at transfer we mus...
Actually I am a civil engineering student so I am doing this by myself, and unfortunately not for a university project (they don't teach prestress), I usually use metric system and in my country we follow all american codes and layout. If you mind, could you send some documents about how to...
Hi, I have a post-tension slab I want to draw it in autocad but i don't know how many plans to present and how each plan layout, can anyone present any sample autocad or pdf showing layout of slabs presented by a company or office ?
maybe I am missing something but is the jacking stress taken 0.8fpu (fpu is the ultimate stress in the strand) ? because in the field when the jacking process is done the worker was looking at the gauge and stoped at 5300 PSI and that was weird because 0.8*270000 = 216000 PSI and that is way...
the picture is from the attached document , thanks for the help guys.
http://files.engineering.com/getfile.aspx?folder=534bb4bc-4444-4a48-b664-6c5c306a3cd0&file=RI7_2.pdf
For a PT slab with tendon/distributed layout what is the best profile parabola or reverse parabola for each direction ? and what is the difference between these two profiles and their impact on the stresses ?
Thank you for the reply, can you share an article or document about a banded-distribution layout how the tendons are distributed and tricks and tips about their profile ?
