I was designing a Combined Footing for columns that are close to each other, and the columns are not at the same horizontal and vertical level, as shown
When I studied another appropriate shapes for the foundation, I found that the following shape require less area and smaller thickness ...
Hello everyone, I have a Footing that was poured at 55 cm thickness, 15 cm lower than required (70 cm), punching shear failure will occur, How is it possible to increase the thickness of the footing?
note that the footing was poured recently, and no work has been done on the column necks
any...
I want to design a staircase with a split between the staircase steps, shown in the attachments (step number 6), Do you have any ideas or any explanation of how to model and design such a staircase?
thanks in advance.
During the excavation process for a new building consisting of 6 floors, a footing was found at a level other than all the bases due to the presence of swollen soil that was removed under it, the rock layer has been reached.
the footing for the retaining wall that connects two separate footings...
hello everyone, I'm making a torsional irregularity and eccentricity checks in a building with retaining-basement walls, when I model these walls, which are existed on the basement floor and ground floor, the building will have extreme torsional irregularity and eccentricity of more than 15%...
while designing a 7-story residential building, Etabs calculated the fundamental period as 1.85, and the approximated Period Ta was 0.53, the building is located in seismic zone 2B with Z=0.2g, and the period used for calculating base shear was 1.4 Ta which is 0.74, isn't the used period far...
I have a quesion about proper model, analyze and design using etabs , i have no clear way to assign partial fixity for column and shear wall base , according to BS 5950 , which shown in the figure , it depents on the rigidity of the connection between member and footing , and found no way to...
while training to design a 10-story building, I asked many engineers about base joints for columns and shear walls, some said that joints considered as pinned are safe and more economic, but, in my opinion, the lateral load will cause a moment at the base that I should design for, any ideas...
if I have a beam with pin supports (columns) as in fig (1)
Is having a weight P due to the existence of upper floors on the beam sides as in fig 2, lead the beam to act as there is fixed support on both ends?
As stated in section 12.7.1 in ASCE 7-16, "Foundation Modeling. For purposes of determining
seismic loads, it is permitted to consider the structure to be
fixed at the base. Alternatively, where foundation flexibility is
considered, it shall be in accordance with Section 12.13.3 or
Chapter 19."...
as stated on the (ACI 318.2-14):3.1.1) "Elastic behavior shall be an acceptable basis for determining internal forces and displacements of thin shells. This behavior shall be permitted to be established by calculations based on an analysis of the uncracked concrete structure in which the...
If I consider that the Column-Isolated Footing joint is pinned
what are the requirements or details needed to correctly represent the pinned joint in the structure?
