I have a arch steel beam very similar to the example attached from page 292 of 7th ed Textbook by Roark's ... The example says "To obtain the rotation of the arch at the point of attachment of the bar, we first calculate the loads on the portion to the right of the loading and then establish an...
Looking to expand my knowledge, I have never designed bridges and am looking to learn. I am interested in the design and sizing of the cables that support the bridge.
Does anyone have textbooks, manuals, or resources with design examples for suspension bridges?
I have looked at the following...
I have a curved steel beam very similar to the example attached from page 300 of 7th ed Textbook by Roark's ...
My question is that the solution values don't make sense.
1. If you plug x=37.59 and x=130.9 into the Tx formula you don't get 13,100 in-lb & 8790in-lb respectively. (I get from...
In Canada, the Code specifically states that a partition weight of not less than 1kPa (20psf) (NBCC 2015 CL4.1.4.1.3)) be added to the Dead Load.
That’s a lot of load to add to residential wood stud suburban home. Considering that the self-weight (wood joists +subfloor) ~0.3kPa (6psf). And the...
Hi,
Cambering a structural member simply masks deflection from the viewers eyes OR after cambering a member can we subtract the camber from the deflection requirements?
I have seen both approached such as “purpose of camber is to mask deflection, it does not reduce the total deflection” pg3...
Hello,
In reinforced concrete flat plate buildings we design the deflection for L/360. This would be the deflection at the mid point between supports of a continuous slab.
I am testing a scaled down version of the slab, and it is loaded with a point load. How would I compare the deflection...
Hello,
In the CSA O86-14-Engineering Design in Wood section 9.5 Resistance of structural panels, there are 4 different shear checks. I am confused regarding what they mean and which one to check in which scenario?
I have read the “CSA-O86-14-Commentary”...
Hello,
Concrete high rise has reshoring jacks used for reshoring slabs. Jack capacity is specified with a safety factor of 3:1. I am designing using LRFD, so I am comparing SLS slab load above to the working jack capacity and the ULS slab load to the 3x(Working Jack Capacity)?
Hi,
I am trying to clear up what safety factors or load combinations we should be using when designing formwork and reshoring. I am using CSA S269.1 (Canada) but have also reviewed ACI 347-04 Table 2.3 which lays out the safety factors. These factors vary based on the component one is analyzing...
Hi,
I am working on a reshoring project and was wondering if I can take the SDL(Superimposed Dead Load)+LL(Live Load) as the slab capacity to calculate the number of floors that I need to reshore?
After looking at posts on this website such as...
Hi, I am pretty new to Abaqus and have been studying and practicing it intensely.
For the past month I have been trying to get a Force v. Displacement curve for a reinforced concrete beam. The force response I was seeing was not making sense so I simplified it to a homogenous single material...
Hi, I have a 200mm slab and based on the covers the d=167.5mm and d’=54.5mm (distance to centre of bottom steel and top steel respectively). Based on the loading and strain diagram I can calculate a c (distance to N.A.) of 43.3mm.
When calculating deflection though following the CSA A23.3-14 on...
