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Hi there, I'm working on the design of a 3/4" thick steel plate that has fixed supports on 3 sides and is free on 1 side. There is a load of 120kN applied to the plate and the plate has the dimensions as shown below : . I'm trying to figure out how to analyse this. This passes fine if...

Hi there, I'm working on the design of supports for a transfer beam that is carrying two storeys above. The loads are quite large, so I am trying to see if there are ways that I can be a bit less conservative with the analysis model. How should I be analysing a structure with a continuous...

Hi there, I'm working on a project where I need to design the slab for a new floor. See the image below, the new upper suspended slab footprint is shown in blue: For a situation like this, where there are a mix of one way and two way spanning slabs that will all be poured monolithically...

Hi there, I'd like to confirm my understanding of a typical hip roof load path (compression roof). Are my load path assumptions in the sketch below correct? Mainly interested in the load share between the hip rafters/supporting wall and the ridge board (compression)/supporting wall. I'm...

Hi there, I'm working on a reinforced concrete residential project where there will be a slab cast on top of a lintel/beam framing plan, as shown below : There are a few locations where there will be an intersection between structural elements and I am looking for best detailing practice...

Hi there, I'm trying to find out what the minimum reinforcement value should be for buttresses. A colleague mentioned 1% to me but I would like to be able to reference a code. American/Canada/Europe codes are all fine. Any assistance would be appreciated.

Hi there, I was asked to look at a few cracks in a building that apparently got worse after heavy winds recently. I'll most likely need to give comment on the most likely cause of the crack and potentially a recommendation for a fix. My thoughts are outlined below but I would appreciate...

Hi there, I’m working on a project with a typical steel frame/cladding warehouse where the architect is trying to put a covering over a new door that will be installed. The covering was initially going to be a gable-pitched covering with timber rafters that were somehow going to be connected...

Hi there, I'm working on a project where a wall will be coming out and a new 6' doorway will be put in. The architect will be bringing up the floor level, which reduces the space to add a beam to 1.5". The beam is lightly loaded and is just holding up the roof. However it also needs to hold...

Hi there, A client recently reached out to me with regard to a load bearing wall. Another structural engineer originally specified that the wall be demolished and replaced with a steel beam as it was assumed the existing wall was load bearing. However, the client said that the contractor...

Hi there, I need to design a house-keeping pad for an air handling unit. The mechanical engineer stated that the depth of the pad can be 4" thick. The floor load where we will be putting these pads has a design live load of 100psf, so I am trying to make sure that the pressure from the...

Hi there, I am working on a project where a client has attached a steel rod onto their chimney using mechanical anchors that are only embedded 1.5" and they wanted to check if this was adequate. If the CMU block is hollow, the existing mechanical anchors used would be inadequate as HILTI...

Hi there, I need to check an existing connection and I want to make sure I'm going about this in the correct way. To provide some background there is a metal pole that is connected to a hollow masonry CMU block wall with some mechanical anchors. I would like to check if this existing...

Hi there, I have a project where a client has a single 1”(28mm OD) pipe that they would like to mount along with a 80mm high cable tray on top. See below image: The client would like to use a precast solution to hold the pipe down and were initially looking at using some parking bumpers to...

Hi there, I am working on a project, where the architect would like to create a new door opening for a restaurant between two existing windows, see below : The existing building is built from CMU; it is two stories. The door is quite wide and the cut out would only leave ~10" of masonry...

Hi there, I have a project where the client will be putting in some holes for HVAC equipment in some exterior stone walls for an industrial building. The walls are 12" thick, in what I assume is limestone (I'll confirm). The holes will be a 12"x12" square and a 24"x24" square. For the...

Hi there, I am going over a past problem and would like some clarity. I recently designed a concrete jacket. To simplify the problem. The top of an existing column was in poor condition. I have a lateral load applied to the column at the top (cantilever). I want to provide a transfer...

Hi there, I designed a square manhole 8' wide and total depth including the footing, top slab and grade rings is about 7' max excavation down. I managed to convince the client to move the manhole further uphill where the water table is not as high, however it may still be present to some...

Hi there, I am working on a manhole that is below the water table. The client is asking if we can install some drainage inside the manhole but I am thinking that if we put a drainage hole at the bottom of the manhole, there will be water ingress in the manhole up to the water table level...

Hi there, I need to design a few traffic rated manholes to pull some fibre cables (they cannot be pre-cast). They will be considered submerged and conservatively designed with the water table at the top and cast underground. The manhole structures are quite small 6'x6'x4' (lxwxh); the client...