3003 W CASINO RD BLDG 40-25 2018-09-19

Executive Summary BASIC SEISMIC-FORCE-RESISTING SYSTEM: C4—STEEL ORDINARY MOMENT FRAME • RESPONSE MODIFICATION FACTOR, R 3 • OVERSTRENGTH FACTOR,S2 3 • DEFLECTION AMPLIFICATION FACTOR, Cd 3 • SEISMIC RESPONSE COEFFICIENT, Cs 0.32 • DESIGN BASE SHEAR AT VANDECK EXTENSION 11.5 KIPS • ANALYSIS PROCEDURE USED: EQUIVALENT LATERAL LOAD METHOD Load Combinations(LRFD) • 1.4D • 1.2D+1.6L • 1.2D+1.OE+L* o (1.2+0.2Sos)D+ Eh+ L* • 0.9D+1.0E o (.09-0.2SDS)D+Eh *Live Load neglected because once jib crane is in place, design live load will not occur Gravity Framing: • Jib Crane frame was designed with Risa3D computer analysis • Vandeck and supporting steel framing was designed with Risa 3D computer analysis using reactions calculated from Jib Crane Frame analysis. Lateral Framing: • Jib Crane Support Frame: Per ASCE 7-10,Chapter 15 (Seismic Design Req.for Non-building Structures), 15.3.3,jib crane frame is to be designed in accordance with Chapter 13 (Seismic Design Req.for Nonstructural Components). Designed with vertical and horizontal loads supplied by jib crane manufacturer as well as seismic loads which included the horizontal and vertical seismic load effect per ASCE 7-10 Chapter 12.Confirmed adequacy of vandeck slab at jib crane support frame. Provided alternate detail for WF support beams below vandeck slab at jib crane support frame. Verified anchorage details at jib support framing and lateral brace. • Vandeck&Supporting Framing: Designed for vertical and horizontal seismic loads based on ASCE 7-10 Chapter 12 including the horizontal and vertical seismic load effect. Applied Jib Crane Support Frame reactions to the vandeck slab. Confirmed column base connections to existing 12"thick concrete floor slab. 40-025 Vandeck Slab &Jib Crane Support Frame A18.0101.00 10/2017 I