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Hi, Small question, does it make a difference which rebar goes above which in a slab or a footing mesh in the xy plane? Does it depend on the rebar diameter or the length of the X or Y...

Hi, Im new to this forum and I have a question about the Pressure in the lower water tank which is supplied by gravity from the upper tank by half inch pipe in the picture below. . Thanks in advance!

Hi, Is it allowed to mix rebar diameters in flexural members like beams and ribs in a ribbed slab? What is the implications of that? Wouldn't the smaller diameter bars yield before the larger ones under loading making them useless? Thank you!

Hi, Can you suggest suitable column placement for these plans, I find it difficult since the floors are shifted from each other, especially the 2nd basement floor on the far right. File is attached Thank you...

Hi, In the cad drawing attached there is a column that sticks out in the middle of the room in the 1st floor as you can see here . I don't know what to do, should I just ignore enlarging the column to accommodate both beams from each side and Just have a beam to beam connection? but that...

Hi, What considerations should be kept in mind when dealing with big difference between column and beam dimensions? for example in a ribbed slab Main Beam dimensions: b=1000 mm , h=300 mm Column dimensions: D=250mm circular Thank you

Hi, Its 20m x 20m water tank, 5.5m height 2200 m3. After pouring the raft footing something went wrong with the water stopper on one of the sides and it got loose from the footing completely, What are the possible options for this situation? Thank You!

Hi, I want to convert this staircase to a regular room, Image I have a couple of questions about how to tackle this, I thought people with some experience here will help. 1: When removing the existing slab "1" (25 cm solid slab) with Helti jackhammers, where should I start, from the sides to...

Hi I need help implementing a delay strip in a 50 cm waffle slab, i tried to find information for detailing in detailing manuals but couldn't find any , I hope someone here would help me to find resources for designing and detailing a delay strip in rc slabs. Will provide information if...

Hi, In a two-way ribbed slab with embedded beams, this table from ACI code for formwork removal says 14 days for slabs and 21 days for beams, Does that mean the contractor should not remove the formwork of the beams until the 21 days have passed, or are the beams part of the slab and their...

Hi, Trying to solve an indeterminate beam using moment distribution displacement method, I used the general fixed-end moment equations, but one span has a trapezoidal load on part of the span which does not have a fixed-end moment equation, here is the problem...

Hi, I work with the consultant in a reinforced concrete building project, the column sections for the next story will be resized from 100x50 to become 80x40 cm, the contractor suggested that he wanted to do this : image: http://s19.postimg.org/h519or3ib/screenshot_44.jpg The contractor does...

Hi, I'm not sure if this is going to sound a bit stupid but here's the situation: I work at an 8-story parking garage building project, we already completed the first waffle slab and now the second slab is on its way, awaiting confirmation for the time to pour concrete, but one of the...

Hi Is there a difference between Ground beam and Tie Beams? or are the different names for the same thing?

Hi (Metric Units) What is the detailing for the connection of a drop beam (B=60 H=70) on a bearing wall (width=40 cm) the beam is dropped 35 cm below the solid slab (thickness=35 cm) ? Is it ok to load a drop beam on a wall with no embedded column in the wall section? the beam bottom steel is...