Search results for query: *

Hello, I'm dealing with the RC structure(moment frames in both dfirections) with masonry walls/infills between RC walls/columns. Only the small part of the building plan has RC slab on the top – the rest of the structure is 'opened' - doesn't have RC slab on top so the timber roof is the only...

Hello, I'm dealing with an existing RC basement wall that is 200 mm thick. There is existing window opening in the wall, that is already filled with masonry blocks. The lateral earth pressure is about to increase due to some loads near the basement wall. I have no data on how masonry block...

Hi, I'm designing a CLT roof - span in main direction is 6,20 m. CLT slab is 200 mm thick and it has opening in the middle of the span 1,0 x 1,0 m. I made FEM analysis and the strip model analysis. I figured that the bending capacity is OK but I don't know how to approach huge spike of...

The RC slab will be exposed to the weather (parking lot + foundations for containers). Slab will be 250 mm thick. Since it is prety large there I suspect there should be some dilatations, so there will be some cracks control? This is what I have in mind: What do you think?

Hello, I have been wondering what is the better option for the new foundation when building a new structure right next to existing. New building will couse additional horizontal pressures on the existing basement walls. How to minimize impact of new building on existing - to make the...

Hi, How would you strenghten a steel beam near the support after cutting half of it off (as shown in image)? The beam is continuous (10 m span) and it is only loaded with self weight and some installations (1 kN/m). The contractor wants to install some new ventilation pipes that will go through...

Hello, Is this a proper way to do the seismic calculation for free standing wall? (based on Eurocode standards) thx for replies.

Hello! I'm dealing with a concrete structure (walls and RC frames). Foudation slab is 300 mm. Since I have some columns with pretty large forces at the edge of the slab (punching shear) I have been thinking to make RC slab thicker (450 mm)in area bellow columns. What is the proper way to...

Hi, A new residental buidling will be build on the ground that is lower than the surrounding terrain (for aprox. 0,50 m). I'd like to elevate the foundation slab for 0,40 m so the new structure will be around the same level as surrounding terrain. Should I design an edge beam around the...

Hi guys! I'm working on residental building as shown in image bellow. I'd like to hear your take on RC column 250 x 250 mm: (1) should I make column foundation/spread foundation at the same level as main structure footings or (2) should I make a foundation higher (0,8 m bellow terrain line...

Very old existing structure - wide stone walls, timber roof The conctractor made a steel column (part of steel frame that supports new roof) above existing window opening (span of 1,30 m). There is no real lintel - just stone and some mortar that acts as lintel. Column is supported on existing...

Timber beams 180 x 240 (no spacing between), on top plywood and RC slab (70 mm thic). Connection between slab and timber are nails as shown bellow. How do I calculate shear capacity per 1,00 m (kN/m) for such composite ceiling?

hELLO I have been working on the masonry and RC residental building (image bellow). On the top floor I'm dealing with an overhang (1,7 m) and 10 m span - I have been thinking to design this as RC moment frame since I don't have any other idea how to solve this. Frame supports both RC slabs. I...

Hi, I am designing a steel canopy. I need your opinion about supporting of top chord (to prevent buckling as a result of compression in top chord). Is this the appropriate way to do it? Thanks for replies.

Hi, I'm dealing with a very old buidling (stone walls) with RC slab on top. There is a room with brick vault ceiling that was added later (similar to attached photo bellow). There are vertical cracks between old and added part on both sides of the wall(there is no dilatation between). Investor...

A residental building (masonry with RC slabs/beams and timber roof) with huge openings in the ground floor - because of this I have large forces acting on the edges of the foundation slab (0,30 m thick). I was thinking about edge beams but not around the entire perimeter of the slab. Thoughts?

Residental building (masonry walls and RC slabs with timber roof), has to be 0,80 m above terrain - due to the possibility of floods. This is what I have had in mind: This is what the contractor suggested: I know what the contractor suggested is cheaper but I feel this is completely...

I'm designing pretty big steel canopy next to the existing residental buidling. I am planning to anchor steel beam (blue in image) to existinc concrete wall. Since vertical reactions at the end of the beam is quite large = 45 kN I'd like to anchor it as shown in attached sketch. That way I get...

Hi, This is residental building (60 years old) - what is (most likely) the cause for cracks in the middle of the wall (bellow the window)? - settelments in the middle of buidling? - insufficient foundations? Cracks are 3 - 5 mm wide Cracks are 10 years old but they are getting wider. How bad...

Greetings, slab is 200 mm and anchored in the middle. Slab in one way (I cant use walls perpendic. to beams for slab support) I have a questions: - is anchoring with rebars ALONE reliable enough to support new RC slab on existing beams? So everything would be depending on shear capacity of...