I may be getting involved in a project where there is extensive deterioration of the concrete and rebars in a 10" conc slab. Approximately 500 localized areas of 1 to 5 square foot repairs. The depths of the repairs will likely vary and be up to 2 to 3" at some areas. In the past we've specified...
I am working on a small project to reinforce the base of an HSS column that was impacted by a forklift 15 years ago......
The tenant is moving out and it's part of their lease agreement to repair it.
Under normal circumstances I would just weld cover plates or angles to the corners and extend...
I am working on a proposal for new design for a 5 story apartment building. First story will be precast concrete with a 4 story wood structure above.
The building is proposed to be 153,000 square feet, about 34k sq ft on each floor. I've attached a few photos below. If I base the fee on approx...
I have a project where the client is planning to add a 1,700 pound RTU on an existing roof. The proposed RTU is 115"x64" with the long direction perpendicular to the roof joists preferred. I've attached a sketch of the layout. There is a 8" CMU wall that can be taken advantage of if necessary...
I am reviewing some architectural plans to provide markups and wanted to get people's thoughts on some roof framing. I've attached a screenshot of the framing. There is a vaulted ceiling at one side of the house and tray at the other. There are some struts provided with H10S connectors for...
I'm designed a small three seasons room addition to a house and had a question regarding shear walls. The addition is 20'x9'x9'(H), see attached files. There are windows around the perimeter of the room. At first I was thinking of running headers below and over the windows(between the posts, so...
I have a situation where I'm working with a contractor and owner on repairing concrete at the underside of an existing driveway slab at an apartment building. The concrete under about 60% of the slab had spalled and the exposed bars were corroded with some section loss. it is my understanding...
I'm designing a beam to carry the load in place of a bearing wall to be removed. the opening is about 20 long and carrying a parallam and 2x12 floor joists on each side of the beam. I am using a W12x35 with blocking bolted through the web. Using face mounted hangers seems to be the easy solution...
I wanted to get everyone's thoughts on adding a second story on the existing residence. It's a two wythe 8" masonry wall unreinforced on 10" concrete foundation walls. I understand we'll have to verify foundations but has anyone ever added a second story to a residence like this? In the past...
Hey everyone,
I'm working on a project where an RTU is being added to a roof framed with wood trusses. I'm placing the RTU over a steel beam down the center of the commercial space, at a column location. I have access to original design drawings which specify 15 psf top chord loading and 10 psf...
Hey everyone -
I'm interested in getting people's thoughts on the strength of existing wood joists in an existing building built in 1909. My scope was related to evaluating the roof framing for new RTUs and the 2nd and 3rd floors for some new mechanicals, but we came across an issue where I...
Hey everyone, we've been tasked to evaluate some steel joists for new RTUs. I'm trying to figure out the type of steel joists these are. It appears the building was built in 1969, but I have not been able to confirm that. I've attached a few photos. I feel like the biggest challenge is trying to...
Good morning, for some reason these wood roof framing scenarios rack my brain. I'm currently looking at a garage (48' wide x 34' depth) with scope to provide roof framing design, as the building official is requesting that what the arch has shown can work. I've attached the plan view and...
I recently inspected a building for a client where the bases of the concrete columns were spalled and the exposed bars were corroded. I'm planning on providing details to shore up the existing structure above as required, then chip out the loose/debonded concrete to about an inch past the...
I am designed a steel canopy that is 60' long and 24' wide. The canopy will be up against an existing CMU building. The CMU is 12" and the 60' long section will be up against the building. I'm planning on 4 columns spaced at 20'. Wanted to get people's preferred method of attaching steel beams...
I was recently contacted by an architect in the area that designs a lot of buildings. Their current structural engineer is dealing with some health issues and he was referred to me. He sent me his CAD files for the building and asked that I submit a proposal for structural design/dwgs. During...
I'm reviewing a set of drawings provided by an architect and recently had a meeting with the architect, owner, and GC. The architect would like to design the building with steel framing, but the GC is claiming that it is too expensive and that wood is a better option. The building is two stories...
I am working with a new architect client that reached out to me recently. I provided a proposal for the design of a new CMU building with steel floor framing (joists and decking). The building is 100'x60' and is 2 stories. I recently received a preliminary set that shows 2x6 stud walls with wood...
Hey everyone, curious on getting other people's input on this one. I looked at a wood beam/column system in a basement not too long ago, the beams were visibly sagging a bit and exhibited checking of the wood. I would not characterize the splits as due to tension stresses. Furthermore, the...
I'm curious to get people's thoughts on this underpinning detail. I had an architect question why I'm cutting off the existing footing at the inside to extend the new concrete foundation wall up along the inside of the wall. First he asked how are they going to do that? I have personally seen...
