I. CE 3501L - Structural Design Laboratory Prof. Wang, Ph.D, P.E. Civil Engineering Department Homework Assignment 2 Given: The following information is given about an eight-story classroom building at Cal State Fullerton: Building Material - Structural steel • • Lateral Force Resisting System – Special moment-resisting frame • Story Height - 10 ft (typical) • Effective Seismic Weight of each story - 500 kips (typical) • Soil Class C Required: Determine the following: 1) Mapped risk-targeted maximum considered earthquake (MCER) spectral response acceleration parameters Ss and S₁ 2) Site coefficients Fa and Fv 3) MCER spectral response acceleration parameters SMS and SMI 4) Design spectral response acceleration parameters SDS and SD1 5) Transitional periods of design spectrum, To, Ts and TL 6) Design response spectrum (MATLAB plot is recommended) (plot to be done to scale and complete including response spectral curve for each of the four period ranges) 7) Approximate fundamental period of the building Ta 8) Seismic base shear V of the building --cont'd next page II. Given: The following information is given for a six-story office building with a flat roof (shown below): • Building Material - Structural steel • Lateral Force Resisting System – Special moment-resisting frame • • • Effective Seismic Weight of each story – 400 kips (typical at each level) Soil Class C - Mapped maximum considered earthquake spectral response accelerations at short periods, Ss = 1.5g Mapped maximum considered earthquake spectral response accelerations for 1-second period, S₁ = 0.6g Long-period transition period, TL = 8 sec. TTTT T777 10' 10' 10' 10' 12' 20' Required: Determine the following based on the ASCE 7-16 standards: 1. SDS and SD1. 2. The seismic design category (SDC) of the building. 3. The approximate fundamental period of the building. 4. The total design base shear. 5. The seismic lateral force at each level of the building. III. Given: A five-story hospital with no emergency facility has the special moment frames as the seismic force resisting system. The following information is given the hospital building: Building Material - Reinforced Concrete Ss = 1.50 (g); S₁ = 0.60 (g); T₁ = 8 sec. • Site class C • Each story height = 15 feet Floor area • • = Floor weight = 120 psf; Roof weight = 100 psf Exterior wall weight tributary to each floor = 50 kips 20,000 ft² (each level); Roof area = 20,000 ft² Grade Grade • Exterior wall weight tributary to roof = 30 kips • Consider interior partition wall weights Required: 1) The effective seismic weight of building. 2) The seismic base shear of building. 3) The story forces (the seismic lateral force at each level of the building). 4) The story shears (the seismic shear force in each story of the building).