FIAT LUX UNIVERSITY OF LIVERPOOL School of Engineering Department of Civil Engineering and Industrial Design CIVE342: Earthquake Engineering UNIVERSITY OF LIVERPOOL A three-storey residential (ordinary) building is shown in Figure 1, where the value next to each column indicates the corresponding lateral stiffness. The mass of each whole floor is 2000 tonnes. The building is situated in a region with a reference PGA of 25%g (TNCR = 475 years) and where seismic hazard is dominated by events with a surface wave magnitude less than Ms 5.5. The shear wave velocity of the site is estimated to be 510m/s. The sample structure is a shear-type building. Assume a damping ratio of 5% and a behaviour factor of 3.0. Determine: 3m 800kN/mm 600kN/mm 3m 700kN/mm 500kN/mm 4m 600kN/mm 400kN/mm TI Figure 1 - Shear-type multi-storey building (bay width 4.5m). Number and values of frequencies of vibration; - Modes of vibration and their shape; - Participating masses for modes of vibration. Using the equivalent static approach and the seismic input provided above, determine: - Seismic horizontal base shear; Seismic horizontal forces at each storey; Bending moment and shear distributions in beams and columns Inter-storey drifts at each storey. 2 Appendix. Excerpts from EN 1998-1:2004 3.2.2.2 Horizontal elastic response spectrum UNIVERSITY OF LIVERPOOL T 0≤T≤TB: Se(T) = ag · S + (n.2.5-1) (3.2) TB TB≤T≤Tc : Se(T)=αg·S⋅n·2.5 (3.3) Tc≤T≤TD: Se(T) =ag ·S.n.2.5 2.5√ (3.4) Tɲ≤T≤4s: Se(T) = ag · S · n ⋅ 2.5| TCTD (3.5) T2 n=10/(5+)≥0.55 (3.6) (= viscous damping ratio in percent) 3.2.2.5 Design spectrum for elastic analysis (For 5% damping) 0≤T≤TB: Sɖ(T) = ag · S 2 T 2.5 + (3.13) TB q TBST≤TC: Sa(T) = a 2.5 (3.14) q 2.5 TC ·S. Tc≤T≤Tp: Sd(T) = · q T (3.15) ≥ẞ-ag S 2.5 TcTo TD≤T: Sα(T) = 9T2 (3.16) ≥ẞ.ag 3 UNIVERSITY OF LIVERPOOL Table 3.1 Ground types Ground type Description of stratigraphic profile Parameters Vs,30 (m/s) NSPT Cu (kPa) (blows/30cm) A B Rock or other rock-like geological formation, including at most 5 m of weaker material at the surface. Deposits of very dense sand, gravel, or very stiff clay, at least several tens of metres in thickness, > 800 360-800 > 50 > 250 characterised by a gradual increase of mechanical properties with depth. C Deep deposits of dense or medium dense sand, gravel or stiff clay with thickness from several tens to many hundreds of metres. 180-360 15-50 70-250 Ꭰ Deposits of loose-to-medium cohesionless soil (with or without some soft cohesive layers), or of 800 m/s. Deposits consisting, or containing a layer at least 10 m thick, of soft clays/silts with a high plasticity index (PI > 40) and high water content S2 Deposits of liquefiable soils, of sensitive clays, or any other soil profile not included in types A – E or Si < 100 (indicative) 10-20 Table 3.2 Values of the parameters describing the recommended Type 1 elastic response spectra Ground type S TB (S) Tc (s) TD (S) A 1.0 0.15 0.4 2.0 B 1.2 0.15 0.5 2.0 C 1.15 0.20 0.6 2.0 D 1.35 0.20 0.8 2.0 E 1.4 0.15 0.5 2.0 Table 3.3 Values of the parameters describing the recommended Type 2 elastic response spectra Ground type S TB (S) Tc (s) TD (s) A 1.0 0.05 0.25 1.2 B 1.35 0.05 0.25 1.2 C 1.5 0.10 0.25 1.2 D 1.8 0.10 0.30 1.2 E 1.6 0.05 0.25 1.2

Solved: FIAT LUX UNIVERSITY OF LIVERPOOL School of Engineering Department of

Home
questions and answers
fiat lux university of liverpool school of engineering department of c

Question

FIAT LUX UNIVERSITY OF LIVERPOOL School of Engineering Department of Civil Engineering and Industrial Design CIVE342: Earthquake Engineering UNIVERSITY OF LIVERPOOL A three-storey residential (ordinary) building is shown in Figure 1, where the value next to each column indicates the corresponding lateral stiffness. Th

This question hasn’t solved by tutor

Solution unavailable? No problem! Generate answers instantly with our AI tool, or receive a tailored solution from our expert tutors.

Found 2 similar results for your question:

For each of the following statements indicate the lineation pattern that best matches. Mid-ocean Ridge A.Mid-ocean Ridge B.Mid-ocean Ridge C. 31.Ridge with slowest rate of seafloor spreading. 32.Ridge with moderate rate of seafloor spreading. 33.Ridge with fastest rate of seafloor spreading. 34) Ridge whose 2 spreading rate (rate of spreading for one side of the plate) for the last 5 Ma(million years) is approximately 28 km/Ma. 35.Ridge with line showing longest length of seafloor.

Answer the following questions on the same page: 15. Based on the location and magnitude of your earthquake, speculate on the type of damages your earthquake might have caused. 16. Now compare this to the Mercalli Intensity scale. What classification is your earthquake based on this scale? 17. How did the different waves (P, S & Surface Waves) assist you in determining the epicenter and the amount of damage caused? 18. Was your location in an area prone to earthquakes? Speculate on what might have caused this earthquake (be specific). 19. Why is it so difficult for geologists to predict when and where an earthquake will occur? 20. What connections can you make between the behavior of the seismic waves and the Earth's interior? 21. Make sure your name is ON your document before submitting. Tips and hints can be found here (Links to an external site.). This assessment is adapted from "Virtual Earthquake" by Gary Novack, originally found here (Links to an external site.).