I'm a structural engineer involved in a project where a 40KVA generator has been replaced with solar and backup batteries. The client has asked the consulting team to come up with ideas on what to do with the overhauled generator, its old but working fine. Other than the low lying fruit of...
Can concrete repair mortar patch this up or is hacking off the top of the slab and redoing the concrete a better solution?
Don't worry, I instructed that all slab bays around that column be re-shored.
Did a site visit for an 18month old building since exterior renders were done but 4 year old since masonry walling was done experiencing masonry wall cracks. The building sits on very hard rock, 1m below the ground. A year ago, the neighbour off gridline "F" starting excavation his basement, the...
Need advice on the simplest method of stopping that slab from vibrating, vibration is felt just by walking. Owner needs to the sell the unit and it chases away potential buyers.
Answers I've got so far,
1. Increase depth of screed and re-do the floor finish.
2.Introduce a steel beam below...
Masonry infill wall was constructed and 6 months later this cracks that start at the junction of the wall and the soffit of perpendicularly running 1st floor beams have occured, 3 in no. all starting at a beam junction. Wall is natural stone masonry, 200mm thick 1st floor slab has offices with...
Did a recon visit to a building I've been asked to give an opinion on for the cause of cracking and recommend remedial measures.
Photos and a preliminary structural layout are attached. The building has ground + 3 suspended levels then a pitched roof, gravity load path is through load bearing...
I have a slab, made of hollow forms 375mm thick with a 75mm concrete topping reinforced with A98 steel mesh, 5mm wires at 200mm square spacing, total depth 450mm, 125mm wide joists spaced at 500mm on centre.
Partition walling needs to be introduced, some running parallel to the joists, when...
Gents and ladies, I have to apologies, I've been a bad friend, I always come to you to help me with my problems, I promise to be a better friend going forward. /s
I'm involved with a fit out job, convert a building with drawings that look nothing like what was built, into offices, Biggest...
Intention is to cut a door through an existing masonry wall, in lieu of a R.C lintel, contractor is suggesting this as its difficult to install R.C lintel. Wall is natural stones, 400 x 200 x 200mm, 25mm mortar joints.
What are your thoughts, any better solution?
Hi,
I have a staircase with a supporting wall at the edge of the landing.
This supporting wall needs to shift 400mm to give room. A method has to be found that least interferes with the stair case usage.
Does building a wall and filling the last joint with mortar to the soffit of the stair...
Client got inspiration from this project (Kirstenbosch National Botanical Garden).
Problem, no fabricator/foundry in my country is interested in making those curved members( project isn't big enough. (wonder how the South Africans did it, or are those sections used for other purposes there?)...
Hi, we want to support an r.c slab to take a line load by the inclusion of an I beam underneath.
The soffit of the slab to be supported is very uneven and not level hence leaving spaces when the I beam is placed.
what can be used to fill the spaces and still provide an even structural support to...
I'm designing a gate house on a fill site, the fill is about 4m deep, 4 yrs old. the area has been used as the entrance to the construction site for those 4yrs with a lot of truck traffic.
There is a guard house at the centre then two lanes on each side (entrance / exit) then two lines of roof...
Hi, what do you use as a maximum radius in a curved roof to ensure water does not pond at the apex. Or is there a method to ensure water still falls at the area where the slope is less than manufacturer recommended minimum pitch.
Thats the layout of first floor where the staircase terminates. I visualized this as two beams cantilevered from the columns F/8 & F/9 which then carry reactions from the curved beam, does that make sense? And if it does, how do I detail the connection at the end of the curved beam? Dimensions in mm
The attached layout is of the said apartment building, I'm proposing to introduce a movement joint along Gridline E. The diagonal lines divide the ground into zone A, B,and C representing the encountered ground conditions.
A - Rock (600KN/m2)
B - Weathered rock (400KN/m2)
C - Well consolidated...
This is a foundation layout for a 4 storey building sitting on the entire plot, boundary to boundary.
Its essentially an eccentricity problem. When I consider a combined footing running from Gridline A-C, some columns e.g on Gridline 2 & 4 are left orphaned. Been scratching my head for the...
This is a section showing support of a roof to a pavilion, on instinct I told the client we should go with steel. He wants to use concrete so I have to check both options then we compare costs.
My first reaction was to shut this line of inquiry and insist on steel, but then I thought I could...
