Hello,
I am modifying the wind load parameters in ETABS based on ASCE 07-16 which requires inputting windward and leeward coefficient (wind exposure pressure coefficients). Based on ASCE 07-16, the leeward coefficient is -0.5. In ETABS, Do I need to input 0.5 with the negative...
Hi,
I am providing footing dowels to my design. However, I computed that the bearing strengths of both the footing and column are larger than the compressive loads. With that, do I still need to provide sufficient compressive development lengths?
Hi,
A moment which induces tension is needed to be transferred to my footing. How do I determine the required dowel area to transfer this moment/tension?
Hi,
In analyzing my reinforced concrete structure, I found that there are large support reaction moments at the bottom of the column. What are the ways to reduce the magnitude of these moments? Will it be reduced if I added additional beams connecting the columns?
Hi,
I am designing an isolated footing based on ACI 318-14.
1. Is there any provision/clauses in the said code which prescribes a minimum %footing area that should remain in contact with the soil?
2. Are we allowed to provide footing design that would experience loss of contact?
3. If yes...
Hi,
ACI 318-14 Clause No. 24.3.2 provides the maximum spacing in preventing cracks. Does this ACI provision used in designing the reinforcements of footings? If not, can somebody please explain.
Hi,
I am designing a braced cut for an excavation that is less than 6m. With that, Peck's pressure envelope is not applicable. Is there another method in determining the pressure envelope?
Hi,
I am studying how to design a timber shoring for an excavation using design tables from OSHA (https://www.osha.gov/laws-regs/regulations/standardnumber/1926/1926SubpartPAppC). I hope someone can answer the following questions:
1. According to the table, there are time when wales are not...
Hi,
I am new to using trench shields with that I have some questions:
1. Can you use it as protection in constructing footings?
2. How would I compute the load on site to ensure that it does not exceed the trench shield's working load?
Hi,
I am learning how to use ETABS to help me in designing footings. More specifically, I will be using the said software to identify the forces and moments needed to design a structure's footing. Is it correct that I have to invert the direction of the support reaction forces/moments from...
Hello,
I keep on seeing that tie beams shall be provided if the column height is more than 4 to 5 meters. Is this based on any US Code more specifically on ACI 318? If yes, what provision number is it?
Thanks in advance!
Hi,
Based on the geotechnical report, the clayey soil beneath the foundation level shall be replaced with 150mm thick compacted granular backfill. With that, I have a series of questions:
1. Will this backfill affect the soil's bearing capacity?
2.If yes, should I do any adjustments on the...
Hi,
Did ACI 318-14 provide a value for the maximum differential settlement for isolated footings on clay? If yes, what provision is it under? If no, what reference could I use to look for such value?
Thank you in advance!
Hi,
I am designing a combined footing based on ACI 318-14 using STAAD Foundation Advance. Upon checking the calculation sheet (see attached file) from the software, I couldn’t figure out how the following values were computed by the software:
1. One-way shear parallel to longitudinal dimension...
Hi,
I am designing a combined footing based on ACI 318-14 using STAAD Foundation Advance. Upon checking the calculation sheet (see attached file) from the software, I couldn’t figure out how the following values were computed by the software:
1. One-way shear parallel to longitudinal dimension...
Hello,
I am using STAAD Foundation Advance to design a combined footing based on ACI 318-14. The software computed that there is zero hogging moment but I was wondering as to why it still provided top longitudinal reinforcement bars. According to another forum, these bars were provided for...
