LEAP Bridge Pier Load Generation

RE: LEAP Bridge Pier Load Generation

Logan Yarbrough — Tue, 05 Apr 2022 09:03:07 GMT

Did you ever get additional clarification on this?

RE: LEAP Bridge Pier Load Generation

Ryan Fehr — Wed, 16 Sep 2020 14:05:57 GMT

OK thanks

RE: LEAP Bridge Pier Load Generation

Ryan Fehr — Wed, 16 Sep 2020 14:04:54 GMT

All lanes matter. What you are saying about the last lane isn't correct. If I had 8,9, or 10 lanes, I need to analyze for all lanes. Perhaps the 7 or 8 lane case is unnecessary, but I need to AT LEAST analyze for the maximum lane case (e.g. 10 lanes). This is universally true for superstructure (grid) analysis as well as substructure analysis.

What about the LL output? Why does it say I only have 5 lanes? Why doesn't it say 6 lanes (or 7 for that matter)?

What version of LEAP will have this issue corrected?

RE: LEAP Bridge Pier Load Generation

Ryan Fehr — Wed, 16 Sep 2020 13:58:15 GMT

Those are not the LL or WS input windows. Those are the BR and WL input windows. I'm asking about defining BR and WL from the LL and WS input windows, respectively. There's no option for defining the length.

RE: LEAP Bridge Pier Load Generation

Ryan Fehr — Wed, 16 Sep 2020 13:55:41 GMT

No, Im only talking about MANUALLY inputting loads. How do you manually type in the loads for each load combination? There is no input for load combinations on the normal load input screen. I am NOT talking about auto-generated loads.

RE: LEAP Bridge Pier Load Generation

Ryan Fehr — Wed, 16 Sep 2020 13:54:09 GMT

And increasing the barrier will not affect anything besides the WS load?

RE: LEAP Bridge Pier Load Generation

Vinay mysore — Wed, 16 Sep 2020 13:06:54 GMT

5) Max 6 trucks side by side will be moved across the bridge The load effect of 7^th truck on the 1^st bearing /Girder is not significant so most of the critical cases are controlled when truck is directly above that girder and the number of lanes under super structure parameter option are used differently basically for multiple presence factors calculation .

In future versions the user should be able to generate LL for all the lanes loaded.

RE: LEAP Bridge Pier Load Generation

Vinay mysore — Wed, 16 Sep 2020 13:04:50 GMT

4) user can add the contributing length manually. Please let me know if you are looking any other information.

The user can manually input the bearing loads directly for these 2 load cases .

RE: LEAP Bridge Pier Load Generation

Vinay mysore — Wed, 16 Sep 2020 13:01:19 GMT

3. Leap does not run an additional DW =0 load case to account for the lack of fws and the user has to create a new load case considering the above mentioned case

RE: LEAP Bridge Pier Load Generation

Vinay mysore — Wed, 16 Sep 2020 12:58:50 GMT

2 ) Please let me know if this is the information you are looking for. If not please provide me additional information .

RE: LEAP Bridge Pier Load Generation

Vinay mysore — Wed, 16 Sep 2020 10:41:09 GMT

1) Based on the height of the barrier provided in the super structure parameter the program calculates the bearing load for WS load case. you can use the larger barrier height and the program will account for the height in the calculation of bearing load.

I shall try to answer other questions as well.