Answer Happy

Student number (64)
Questions (*) a. The floor layout, total floor weights are W1=1250+5a kN (lower floor), W2=900+5a kN (upper floor) in the figure, and the static calculation of the building with a two-storey framed system, according to the Muto method, first, fictive Vt=100 kN base for the shear force and calculate the M - V section forces of the frame. Draw M-V Diagrams. Calculate the period T1 in the x-x direction using the Rayleigh method. Calculate the elastic maximum displacement values at ground level using the ERZİNCAN 1992 N-S acceleration earthquake spectrum of the recording under total design earthquake forces. (amax=0.40g) Notes: (a.For the reduced effective stiffness values of columns and beams, the coefficients of 0.7 and 0.35 will be used, respectively. Ignore the peak force AFx.b. For the Muto method, use the triangular table of the yo coefficients of the horizontal load.) All Columns All Beams 10.0m 2 10.0m 0.70 m A 0.30 m 0.70 m 0.30 m 5.0 ml Lower Story- h1=290+5b (cm) Top Story h2=245+5b (cm) R=8 Concrete: C35 >Ec=33x103 MPa m2 h2 k2 b. Using the storey stiffnesses and storey weights of the system you calculated above under statically equivalent loads, calculate the real stiffness and mass values of (2x2) and create their matrices. - L m1 h1 k1 2-a. Using the [K] stiffness, [M] mass matrices you created above, create the frequency equation. Calculate and plot the natural frequencies W1, W2 and {0}1,{0}2 mode shapes. b. Check the orthogonality of the modes. Calculate the participation factor, generalized masses, 1st and 2nd effective masses. Do you think statically equivalent calculation is sufficient for this structure? 1
Questions (*) a. The floor layout, total floor weights are W1=1250+5a kN (lower floor), W2=900+5a kN (upper floor) in the figure, and the static calculation of the building with a two-storey framed system, according to the Muto method, first, fictive Vt=100 kN base for the shear force and calculate the M - V section forces of the frame. Draw M-V Diagrams. Calculate the period T1 in the x-x direction using the Rayleigh method. Calculate the elastic maximum displacement values at ground level using the ERZİNCAN 1992 N-S acceleration earthquake spectrum of the recording under total design earthquake forces. (amax=0.40g) Notes: (a.For the reduced effective stiffness values of columns and beams, the coefficients of 0.7 and 0.35 will be used, respectively. Ignore the peak force AFx.b. For the Muto method, use the triangular table of the yo coefficients of the horizontal load.) All Columns All Beams 10.0m 2 10.0m 0.70 m A 0.30 m 0.70 m 0.30 m 5.0 ml Lower Story- h1=290+5b (cm) Top Story h2=245+5b (cm) R=8 Concrete: C35 >Ec=33x103 MPa m2 h2 k2 b. Using the storey stiffnesses and storey weights of the system you calculated above under statically equivalent loads, calculate the real stiffness and mass values of (2x2) and create their matrices. - L m1 h1 k1 2-a. Using the [K] stiffness, [M] mass matrices you created above, create the frequency equation. Calculate and plot the natural frequencies W1, W2 and {0}1,{0}2 mode shapes. b. Check the orthogonality of the modes. Calculate the participation factor, generalized masses, 1st and 2nd effective masses. Do you think statically equivalent calculation is sufficient for this structure? 1