For Transverse Moving Load, its similar to Normal Moving Load. You just have to choose Transverse Moving Load Code.
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After this you need to add lanes to the transverse seciton. Choose the method 2 points and select beam elements by picking the 2 end points one by one
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and in the same way the last element
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To Display the lanes
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Then you have to add vehicles to the bridge:
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Then you can add your Moving Load Cases:
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Then you perform Normal Moving Load Analysis.