
Sky Lobby Diagrid Ceiling
The Leffler Group was tasked with designing and providing a BIM model of the hotel lobby ceiling that fullfills the Architect's intent of imitating the steel diagrid canopy, creating a continuous barrel vault effect.
The model was used to determine the final shapes and locations of custom GFRG and aluminum extrusions, along with framing and drywall.
Exact wire hanger locations were coordinated with MEP models to ensure proper support.
Sky Lobby Diagrid Ceiling
The Leffler Group was tasked with designing and providing a BIM model of the hotel lobby ceiling that fullfills the Architect's intent of imitating the steel diagrid canopy, creating a continuous barrel vault effect.
The model was used to determine the final shapes and locations of custom GFRG and aluminum extrusions, along with framing and drywall.
Exact wire hanger locations were coordinated with MEP models to ensure proper support.

Sub-AGTS CFS Framing
The Leffler Group designed a Cold-formed steel support system for equipment items spanning under the Above Ground Transit System platform (the train platform above). The high cyclic vibrations of the platform do not allow any permanent equipment anchorage to its underside.
The largest span includes 12" deep joists 25ft-45ft clear under the largest portion of the platform.
Sub-AGTS CFS Framing
The Leffler Group designed a Cold-formed steel support system for equipment items spanning under the Above Ground Transit System platform (the train platform above). The high cyclic vibrations of the platform do not allow any permanent equipment anchorage to its underside.
The largest span includes 12" deep joists 25ft-45ft clear under the largest portion of the platform.

Escalator Framing
The Leffler Group designed artwork support for walls in the 5 story tall continuous escalator atrium which extends from the transit arrival platform to level 5 of the main terminal.
The custom artwork weighs upwards of 5,000 lbs mounted to the walls and ceilings.
Escalator Framing
The Leffler Group designed artwork support for walls in the 5 story tall continuous escalator atrium which extends from the transit arrival platform to level 5 of the main terminal.
The custom artwork weighs upwards of 5,000 lbs mounted to the walls and ceilings.

Stairs and Railings
The Leffler Group designed miscellaneous steel components throughout the project including railing and cable railing systems, stairs, and the Grand Stair inside of the hotel.
Stairs and Railings
The Leffler Group designed miscellaneous steel components throughout the project including railing and cable railing systems, stairs, and the Grand Stair inside of the hotel.

Div 9 BIM Coordination
The Leffler Group has been providing Div 9 BIM modeling services for special projects since 2011, and provided wall and ceiling BIM coordination to aid the Construction Team's system coordination.
Div 9 BIM Coordination
The Leffler Group has been providing Div 9 BIM modeling services for special projects since 2011, and provided wall and ceiling BIM coordination to aid the Construction Team's system coordination.

Div 5400 Exterior Design
The Leffler Group provided Division 5400 cold-formed steel framing engineering and shop drawings throughout the transit and hotel portions of the project.
Div 5400 Exterior Design
The Leffler Group provided Division 5400 cold-formed steel framing engineering and shop drawings throughout the transit and hotel portions of the project.