Nomogram connecting fundamental period of a single soil layer, the depth of the layer and the shear-wave velocity of the layer John Douglas 10.6084/m9.figshare.7825037.v1 https://figshare.com/articles/dataset/Nomogram_connecting_fundamental_period_of_a_single_soil_layer_the_depth_of_the_layer_and_the_shear-wave_velocity_of_the_layer/7825037 <div>A nomogram connecting the fundamental period, T, of a soil layer of shear-wave velocity, Vs, and depth, H, using the formula T=4H/Vs. Also given is the fundamental frequency, f, (1/T) and the shear-modulus assuming a density (rho) of 2000kg/m^3, i.e. G=rho Vs^2 (results would be similar for the normal range of density, about 1800 to 2500kg/m^3).</div><div><br></div><div>Connect up two axes and where the line crosses the third axis is the result. An example line is shown for a fundamental period of 0.5s and a depth of 30m, which gives a shear-wave velocity of 240m/s.<br></div><div><br></div><div>Created using pynomo using a type 1 nomogram with type 8 nomograms for each of the principal axes</div> 2019-03-11 11:56:01 engineering seismology site response analysis shear-wave velocity soil site amplification earthquake Seismology and Seismic Exploration Geophysics Earthquake Engineering