Bentley LEAP Bridge Steel CONNECT Edition V18.00.00.31 LEAP Bridge Steel CONNECT Edition V18 contains enhancements and bug fixes. Enhancements Response Spectrum Analysis (RSA) Design Optimization for Tub-Girders New Cross-Frame Locations Wizard Phase I for PennDOT Design Manual - Part 4 Design Checks (it will be followed by Phase II and III for full compliance) Z Type Cross-Frame Definition Double Sections for Cross-Frame Members