Ben Wilson's Activities

Leap Bridge Concrete - Wind Load on Live

Ben Wilson — Tue, 14 Jan 2020 14:32:40 GMT

Hello,

When attempting to create the load combinations I receive the following message - "Dependent loads of type WL and master loads of type WS are not equal in number. Please specify same number of two loads when cross combinations option is turned off."

Currently I have 2 WS and 2 WL loads defined, with the WL set as dependent on WS. Can you clarify this message?

Thank you,

Ben

LARS LRFD - Rigid Cross-Section Distribution Factor

Ben Wilson — Thu, 18 Jul 2019 17:44:48 GMT

Does LARS calculate the distribution factor for the exterior beam of a steel beam-slab bridge assuming the cross-section deflects and rotates as a rigid-cross section (AASHTO LRFD 4.6.2.2.2d) in addition to the distribution factors determined in the AASHTO Section 4 Tables? I'm working on a project in which the rigid cross-section DF is controlling, but I'm unable to get the program to replicate the results of my hand calculations. It's not clear in the manual whether LARS applies the rigid cross-section provision.

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Thu, 18 Jul 2019 17:20:13 GMT

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