Good day Eeveryone,
There is an existing building sewer that all house utilities drain into, as shown in green. We need to reroute this line since the existing sewer main at the rear of the house will be abandoned, and we plan to connect the building sewer to the new sewer main at the front of...
thread261-318645
I have a similar problem related to the issue similar to the thread above. The trench is 4 feet wide and 12 feet deep, with the highest water table at 4 feet below the ground surface. We have sufficient trench shielding; however, this is not enough to prevent the loosening of...
Good Day,
Is there a maximum slope for sewer pipes? I could only find the minumum slope for each pipe sizes in the 10 state standards.
I am looking for an information resources that states that there is a maximum slope that will leave the solids behind if the water moves to fast , or
if I am...
Good day, everyone,
I was wondering if anyone could please provide me with civil engineering references (in American standard) for pipe laying construction for wastewater.
I would like to get a head start on the construction process and its soil and material testing procedures.
It is not...
Good day .
I have been wondering why is it that the overturning moment for OMF building is far greater than the SMF building although they would have approximately the same mass?
Code is UBC 97 , and ASCE 7-14
Is there a limit for the overturning that would give the same results to both...
After the analysis, Etabs would give a required Area of reinforcement needed in the the rectangular column..
My question is how do we know how much rebar should be placed in the short side and the long side of the column?
I just want to clarify what is the proper detailing of a bent up rebars for the two way slab.
and I want to know the sections of the aci code that supports it.
the slab is 5 m x 5 m with a perimeter support beams with a width of 250 mm
the plan specs for the bars @ long direction is 12 mm diam...
is it required for a single mat footing to be hook at the ends of the Rebar?
I have seen some engineers practice those kind of procedure. . but is it really required?
and also is it required to hook all top bars of the cantilever beam at the tip of it?
Hello everyone
In the two way slab holding only gravity loads . . is it okay to alternately continue the top bars along the column strip rather than to make
it all continues ? if so ? what is the real reason why other engineers preferred it to be all continuous , and others alternately...
is it okey for a continuous top(CTB) and bottom(CBB) bar to share the same hook .. ( please see image bellow ) , what section of the code prohibits or allows this kind of detailing . . please check the length of hook if valid..
I want to verify if my judgement (as shown in figure below) is correct. .
We know that the extra top bars of a continuous beam would terminate at the middle third from the support . and the extra bottom bars at midspan would terminate usually at quarter length of the beam.. but what about the...
Hello every one.. we were given a plan that has a reinforced conrete beam that would look like below:
Breadth = 400
Depth = 500
______continuous end_____Midspan___discontinuous end
top_____:__5_______________3_________5
bottom__:__4_______________3_________4
and there is a rectangular outer...
We have a plan that illustrates a special moment frame .. the structural notes states that column splices must be done at midheight also aci code states that splices must be 2D away from support if i am correct . .
if the column rebar required is 25 mm at the 1st level and the column rebar...
figure 1
figure 2
I have found some plans that is like figure 1 above that hooks the ends of the footing mat bars.. I was wondering in what section of the ACI(3-18) code that does require to hook the end of the footing mat bars and what is the size of the hooks?
do we really need to...
Hello everyone. . .
can anybody please clear me out the purpose of only splicing half of the reinforcement in one section and the other half in other sections for columns.. i have been told that this would somehow prevent congestion.. but is it stated in the ACI 318-11 commentary and in what...
Hello Everyone.. I have a problem for the space frame direct stiffness method .. If one of the beam is pinned at one end(eg. @ local y axis only), does this mean that the stiffness matrix of this beam would be written differently from other beam elements..
I am currently making a software and I...
The ACI code gave a provision on structural integrity to perimeter beams is to splice continuous top bars at mid span and splice continuous bottom bars at or near supports. Under gravity loads or in most cases the top bars at mid span and the bottom bars near the supports (in a doubly reinforced...
