LEAP Bridge Concrete Superstructure

RE: LEAP Bridge Concrete Superstructure

Vinay mysore — Wed, 19 May 2021 08:30:47 GMT

I would suggest you to post in Engineering forums where you might get some feedback.

This forum is mostly for technical solutions related to Bentley Bridge programs.

RE: LEAP Bridge Concrete Superstructure

Madilyn Lehner — Wed, 19 May 2021 07:49:17 GMT

Hi all,

I am wondering if any of you can shed light on what it is like being a building structural engineer and how much it differs from bridge engineering. I currently am a structural engineer that designs bridges, culverts, retaining walls, and occasionally airport runway utility structures. I find that bridge engineering is very tedious, regulated, and lacks any creativity. Most of the engineering calculations are automated in programs like Erikson Culvert or Leap Conspan, BrR, etc. I am hoping to find an engineering role where there is more opportunity to be creative and to think critically. Are building structures more what I am looking for or is the job more or less the same at the end of the day? What other challenges does working in buildings have that may not be relevant to bridges? Any experiences you can share would be helpful. Thank you!

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RE: LEAP Bridge Concrete Superstructure

Vinay mysore — Wed, 31 Mar 2021 02:57:49 GMT

I agree that the program does not support "FLARED" girder option for ADJ box girders.

I workaround solution is to create multiple files with multi span bridge with one girder at a time.

There is no direct solution to this issue.

there is no limit for the number of spans LBC can handle.

I hope it helps.

RE: LEAP Bridge Concrete Superstructure

Ross Wood — Mon, 29 Mar 2021 13:58:45 GMT

OK, my problem is compounded because my bridge is an adjacent box beam superstructure. The program and help file say that this superstructure type is not compatible with flared girders.

I have tried redefining my bridge with spread box beams and zero clear distance between beams, and that results in a warning/error that it should be defined as adjacent box beams.

Do you have any additional ideas on how to proceed? Should I make it a multi-span bridge and each span length reflects one of the varying beam lengths? How many spans can LBC Superstructure handle? Otherwise I have to create separate standalone superstructure files for all the individual beams that I want to design. Both solutions seem cumbersome.

Thanks, Ross

RE: LEAP Bridge Concrete Superstructure

Vinay mysore — Thu, 25 Mar 2021 04:48:41 GMT

It is possible to model non parallel.abutment and different beam lengths.

Please check the Flared Girder option in the Project TAB.