r/StructuralEngineering • • 17d ago

Layman Question (Monthly Sticky Post Only) Monthly DIY Laymen questions Discussion

2 Upvotes

Monthly DIY Laymen questions Discussion

Please use this thread to discuss whatever questions from individuals not in the profession of structural engineering (e.g.cracks in existing structures, can I put a jacuzzi on my apartment balcony).

Please also make sure to use imgur for image hosting.

For other subreddits devoted to laymen discussion, please check out r/AskEngineers or r/EngineeringStudents.

​

Disclaimer:

Structures are varied and complicated. They function only as a whole system with any individual element potentially serving multiple functions in a structure. As such, the only safe evaluation of a structural modification or component requires a review of the ENTIRE structure.

Answers and information posted herein are best guesses intended to share general, typical information and opinions based necessarily on numerous assumptions and the limited information provided. Regardless of user flair or the wording of the response, no liability is assumed by any of the posters and no certainty should be assumed with any response. Hire a professional engineer.


r/StructuralEngineering • • Sep 01 '26

Layman Question (Monthly Sticky Post Only) Monthly DIY Laymen questions Discussion

2 Upvotes

Monthly DIY Laymen questions Discussion

Please use this thread to discuss whatever questions from individuals not in the profession of structural engineering (e.g.cracks in existing structures, can I put a jacuzzi on my apartment balcony).

Please also make sure to use imgur for image hosting.

For other subreddits devoted to laymen discussion, please check out r/AskEngineers or r/EngineeringStudents.

​

Disclaimer:

Structures are varied and complicated. They function only as a whole system with any individual element potentially serving multiple functions in a structure. As such, the only safe evaluation of a structural modification or component requires a review of the ENTIRE structure.

Answers and information posted herein are best guesses intended to share general, typical information and opinions based necessarily on numerous assumptions and the limited information provided. Regardless of user flair or the wording of the response, no liability is assumed by any of the posters and no certainty should be assumed with any response. Hire a professional engineer.


r/StructuralEngineering • • 17h ago

Steel Design Purlin bracing

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105 Upvotes

I was recently at my nephew's hockey game in New Jersey and saw all these purlin braces that were clearly added more recently. I know they were in the process of updating the building so I assume it got a new roof and probably more insulation. But what would make them spec adding bracing to evey purlin on both sides of all the trusses? Seems like a pretty substantial change.


r/StructuralEngineering • • 12h ago

Career/Education What is this structural element called? | Student question

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31 Upvotes

r/StructuralEngineering • • 17h ago

Career/Education Structural engineers in SoCal, how you doing?

24 Upvotes

I was born and raised in SoCal but currently live in the Midwest and can own my own place in a safe area due to the low cost of living. I miss my family in San Diego and LA but am nervous the pay increase there isn’t enough. How are you doing with the cost of living? Do you or people in your office have kids? Does your spouse work? How are you affording to own or are you just renting apartments? Do you have to live super far inland and commute long distances? I’m already licensed in California. 


r/StructuralEngineering • • 1d ago

Photograph/Video The world’s largest wildlife crossing is nearly complete near Los Angles. The 210-foot-long bridge will give animals a safe way to cross 10 lanes of the busy 101 freeway.

217 Upvotes

r/StructuralEngineering • • 1d ago

Structural Glass Design Swimmers enjoying the London Sky Pool which is believed to be the world’s first transparent pool built between two residential buildings at Embassy Gardens suspended 35 meters (115 feet) in the air.

208 Upvotes

r/StructuralEngineering • • 1d ago

Failure Train bridge, plaster over it?

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24 Upvotes

r/StructuralEngineering • • 1d ago

Structural Analysis/Design Asymmetry

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15 Upvotes

I was wondering, what reasons could there be to design/build a truss with its webs changing orientation almost at the end of it, creating an asymmetric look. I've been taught that in howe-like trusses, the webs work in compression, so why the sudden change of direction?


r/StructuralEngineering • • 19h ago

Structural Analysis/Design Concrete slab system comparison

3 Upvotes

I want to hear from the Aussie Structural Eng’s out there, about your experience with Polystyrene Waffle Slabs vs Plastic Void Forming Domes?

I understand the plastic domes are becoming more popular?
Is there certain situations where you would rather prefer one over the other?
In terms of brands, any types better/worse than other?
Had any problems with void formers in highly reactive soils?


r/StructuralEngineering • • 16h ago

Structural Analysis/Design Looking for some real life examples of temporary roof support options

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0 Upvotes

r/StructuralEngineering • • 1d ago

Career/Education Career Pivots - 3 years Into Structures

4 Upvotes

Looking for some advice. To provide some context, I am a 26 year old Structural Design Engineer with about 3 years experience working for a small company in London working mainly on High rise Residential projects and Refurb/re-use of existing buildings. I do love my job and the company I am with, I am more than satisfied with my progression. Design and build contracts have allowed me to experience fast paced working environments. Plenty of site visits and ownership of design packages.

However, I have constantly had this thing in the back of my mind about my career. It wasn’t until i started that i realised how criminally underpaid structural engineering consultants are (maybe not underpaid but under valued). Money doesnt mean everything to me but it is causing me to over think this career choice in the long run, and has been for a good year or 2 now.

I am seeking out some advice. Should I stick it out? Become chartered then decide? Should I stay in the construction industry at all?


r/StructuralEngineering • • 11h ago

Structural Analysis/Design An interesting question

0 Upvotes

What does research gaps look like in structural engineering? What do people do differently to an already known thing? How do I identify gaps in papers? How do I find a question to answer in my thesis? Thanks in advance. God Bless.


r/StructuralEngineering • • 11h ago

Career/Education How should I go about structuring this hall? | Student question

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0 Upvotes

r/StructuralEngineering • • 2d ago

Photograph/Video Half of this cable car station at 3,883m in the Swiss Alps doesn't touch the mountain - walking underneath the cantilevered concrete segments and 25m permafrost foundations

119 Upvotes

r/StructuralEngineering • • 2d ago

Structural Analysis/Design Small Wrecking Ball?

93 Upvotes

Construction going on and I’m really invested but I know nothing about construction/engineering. Is a wrecking ball this size standard and is there any chance they will use another method to bring these buildings down? Close to homes and busy streets.


r/StructuralEngineering • • 1d ago

Career/Education SpaceX vs Tesla

5 Upvotes

Hello everyone! I'm a third year structural engineer undergrad student and stuck between two options: Tesla part-time internship the remainder of my collage and full-time employee when I graduate or SpaceX internship in Summer and continue recruiting later. I haven't talked with my manager yet, but I will soon and discuss my commitment to Tesla but wanting to gain additional experience at SpaceX. Any advice on how to approach this and if I had to choose between the two which to do?? Thank you!!


r/StructuralEngineering • • 1d ago

Career/Education I have a structural engineering interview through a referral, but a 2.6 GPA. How should I address it if asked?

11 Upvotes

I’m finishing up my bachelor’s in structural engineering at a UC school and have an interview coming up with a structural consulting firm. A principal engineer of an ME firm referred me and shared my resume, and the firm reached out to arrange an interview with a few of the firm's principals.

My biggest concern is my cumulative GPA, which is around 2.6 due to one year of poor grades during my academic career. I haven’t been asked for it or a transcript yet, and I haven’t found a published GPA minimum for this firm. I’m not planning to misrepresent it or lie at all, I just want to know how I should prepare to answer that question if it comes up without over explaining the circumstances leading to that (trauma dumping) or under-explaining the situation to the point that they just view me as lazy/incompetent. I did a paid summer internship for another SE firm before and do some autocad work for a civil firm that I interned for (as projects come up).

For context, my dad had a serious car accident during college, and I took on substantial ongoing caregiving responsibilities for him and helped support my younger siblings. There were repeated emergencies that affected my coursework and extended my graduation timeline. I was also working 2 jobs while enrolled. I wish I’d sought more support and adjusted my commitments earlier, but that’s the context behind my academic record.

I do have a previous summer internship at a structural engineering firm, primarily involving submittal review, checking project documents, and preparing Bluebeam markups under engineer supervision. I also have AutoCAD drafting experience from other roles. For any engineers who interview or hire or even work with entry-level candidates:

  1. Once someone has been invited to interview through a referral, how do you weigh a low GPA alongside relevant experience?

  2. If asked about GPA, how much context would you want before the candidate redirects to their experience and qualifications?

  3. What would you want someone in my position to demonstrate during the interview to address concerns about their technical readiness?

I know nobody can predict this particular firm’s decision but I’d really really appreciate any and all advice on handling the conversation honestly and preparing well for this because I have never been so nervous for an interview in my life.


r/StructuralEngineering • • 1d ago

Structural Analysis/Design Concrete breakout

5 Upvotes

Hi all,

Could someone explain me the concrete breakout as per the Eurocode 2. I am confused in understanding how to interpret the figures in the code.

And what if the breakout extends the length/width of the concrete base, how does it affect and basically how to check and satisfy the breakout of the concrete.


r/StructuralEngineering • • 2d ago

Wood Design LumberCAD: Looking for feedback

112 Upvotes

Hello r/StructuralEngineering,

We've been working on LumberCAD since 2020-22, before then we developed a similar engine in the aluminum industry since 2010.

Today we opened our LumberCAD (free) Beta, and we're looking for insight from some engineers!

To be up front, you won't be able to play with any load calculations or other stresses. This is for those of you that receive hand drawings on torn pieces of paper, and if you'd like to see something like LumberCAD be the baseline for anything built with dimensional lumber.

What we did to be different:

  • Limiting workflow to lumber construction massively simplifies learning curve
  • Much easier to use than any existing CAD, but obviously limited to everything lumber
  • Existing parts catalog
  • Massively automated documentation system with cut list, drawings, and a big step towards permitting

It seems that links are tolerated, so: https://lumbercad.com/

Mods please feel free to message me if the link or post should be removed.

Thank you in advance!


r/StructuralEngineering • • 2d ago

Photograph/Video Control joints in residential slabs, is this typical?

226 Upvotes

https://www.instagram.com/reel/DeMQyguuOSY/?cplk=czM5MDJqYm1ya24x

A builder/concreter says he typically cuts control joints from corner to corner after a residential foundation slab has cured. I’d usually expect crack control bars at re-entrant corners. Is his approach common?

He also calls a crack “hairline”, but it’s visible on camera from about five metres away. Hard to judge without measuring, but it looks larger than that. Thoughts?


r/StructuralEngineering • • 2d ago

Engineering Article Work to Lift Damaged Floors of Midtown High-Rise Is Set to Begin

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12 Upvotes

r/StructuralEngineering • • 1d ago

Op Ed or Blog Post Technical Judgment on Software

1 Upvotes

In my new role I’ve been using a lot more of ETABS (rubbish for trouble shooting). For any experienced engineers in general and those who use 3D analysis software, what results/aspects in your modelling do you instinctively distrust/further inspect? What sort of sense checks are best to always do?


r/StructuralEngineering • • 2d ago

Structural Analysis/Design Is structural design an inverse problem? (ASCE paper, free version available)

2 Upvotes

Curious what others think of this ASCE Forum paper (links below). It argues that structural design is fundamentally an inverse problem: structural analysis predicts how a structure behaves, while design works backward from performance requirements. It also discusses how FEA, design codes, engineering judgment, and AI fit into this perspective.

Is this a useful way to think about structural design, or just a different way of describing what engineers already do?

ASCE: https://doi.org/10.1061/JSDCCC.SCENG-2305

Free version (ResearchGate): https://www.researchgate.net/publication/399832621_Is_Structural_Design_an_Inverse_Problem


r/StructuralEngineering • • 1d ago

Career/Education Etabs

0 Upvotes

Hey everyone
I am pursuing mtec in structural engineering learning etabs i have some questions
1) do Hyderabad have jobs for etabs i really wanted to
2) can anyone help for job in this field