def test_ddbd_frame_fixed_large():
n_storeys = 5
n_bays = 1
fb = dm.FrameBuilding(n_storeys, n_bays)
fb.material = dm.ReinforcedConcrete()
hz = dm.Hazard()
fb.interstorey_heights = 3.6 * np.ones(n_storeys)
fb.bay_lengths = 6.0 * np.ones(n_bays)
fb.set_beam_prop("depth",
.6 * np.ones(n_bays)) # m #varies vertically
hz.z_factor = 0.3
hz.r_factor = 1.0
hz.n_factor = 1.0
design_drift = 0.02
fb.n_seismic_frames = 1
fb.n_gravity_frames = 0
fb.floor_length = sum(fb.bay_lengths)
fb.floor_width = 14.0 # m
fb.storey_masses = np.array([488.0, 488.0, 488.0, 488.0, 411.0]) * 1e3
frame_ddbd = dbd.design_rc_frame(fb, hz, design_drift=design_drift)
def test_ddbd_frame_fixed_small():
hz = dm.Hazard()
ml.load_hazard_test_data(hz)
fb = ml.initialise_frame_building_test_data()
frame_dbd = dbd.design_rc_frame(fb, hz)
otm_max_approx = np.sum(frame_dbd.storey_forces * frame_dbd.heights)
assert isclose(frame_dbd.delta_d, 0.2400, rel_tol=0.001), frame_dbd.delta_d
assert isclose(frame_dbd.mass_eff, 67841.581,
rel_tol=0.001), frame_dbd.mass_eff
assert isclose(frame_dbd.height_eff, 14.34915,
rel_tol=0.001), frame_dbd.height_eff
assert isclose(frame_dbd.mu, 1.689, rel_tol=0.001), frame_dbd.mu
assert isclose(frame_dbd.theta_y, 0.0099, rel_tol=0.001), frame_dbd.theta_y
assert isclose(frame_dbd.xi, 0.123399, rel_tol=0.001), frame_dbd.xi
assert isclose(frame_dbd.eta, 0.69867, rel_tol=0.001), frame_dbd.eta
assert isclose(frame_dbd.t_eff, 2.09646, rel_tol=0.001), frame_dbd.t_eff
af = dba.assess_rc_frame(frame_dbd,
hz,
theta_max=frame_dbd.design_drift,
otm_max=otm_max_approx)
assert isclose(af.delta_d, 0.2400, rel_tol=0.001), af.delta_d
assert isclose(af.mass_eff, 67841.581, rel_tol=0.001), af.mass_eff
assert isclose(af.height_eff, 14.34915, rel_tol=0.001), af.height_eff
assert isclose(af.mu, 1.6509, rel_tol=0.001), af.mu
assert isclose(af.theta_y, 0.0099, rel_tol=0.001), af.theta_y
assert isclose(af.xi, 0.1201, rel_tol=0.001), af.xi
assert isclose(af.eta, 0.70683, rel_tol=0.001), af.eta
assert isclose(af.t_eff, 2.025, rel_tol=0.001), af.t_eff
def test_ddbd_frame_fixed_small():
hz = dm.Hazard()
ml.load_hazard_test_data(hz)
fb = ml.initialise_frame_building_test_data()
frame_ddbd = dbd.design_rc_frame(fb, hz)
assert isclose(frame_ddbd.delta_d, 0.2400,
rel_tol=0.001), frame_ddbd.delta_d
assert isclose(frame_ddbd.mass_eff, 67841.581,
rel_tol=0.001), frame_ddbd.mass_eff
assert isclose(frame_ddbd.height_eff, 14.34915,
rel_tol=0.001), frame_ddbd.height_eff
assert isclose(frame_ddbd.mu, 1.689, rel_tol=0.001), frame_ddbd.mu
assert isclose(frame_ddbd.theta_y, 0.0099,
rel_tol=0.001), frame_ddbd.theta_y
assert isclose(frame_ddbd.xi, 0.123399, rel_tol=0.001), frame_ddbd.xi
assert isclose(frame_ddbd.eta, 0.69867, rel_tol=0.001), frame_ddbd.eta
assert isclose(frame_ddbd.t_eff, 2.09646, rel_tol=0.001), frame_ddbd.t_eff
def test_ddbd_frame_consistent():
"""
Test the DBD of a fixed base frame is the same as the SFSI frame when the soil is very stiff.
:return:
"""
fb = ml.initialise_frame_building_test_data()
hz = dm.Hazard()
sl = dm.Soil()
fd = dm.RaftFoundation()
ml.load_hazard_test_data(hz)
ml.load_soil_test_data(sl)
ml.load_raft_foundation_test_data(fd)
frame_ddbd = dbd.design_rc_frame(fb, hz)
sl.override("g_mod", 1.0e10) # make soil very stiff
fd.height = 2.0 # add some height to the foundation
otm_max_approx = np.sum(frame_ddbd.storey_forces * frame_ddbd.heights)
af_sfsi = dba.assess_rc_frame_w_sfsi_via_millen_et_al_2020(
fb,
hz,
sl,
fd,
theta_max=frame_ddbd.design_drift,
otm_max=otm_max_approx)
assert isclose(af_sfsi.theta_f, 0.0, abs_tol=1e-5)
assert isclose(frame_ddbd.delta_d, af_sfsi.delta_ss,
rel_tol=0.05), (frame_ddbd.delta_d, af_sfsi.delta_ss)
assert isclose(frame_ddbd.mass_eff, af_sfsi.mass_eff,
rel_tol=0.05), af_sfsi.mass_eff
assert isclose(frame_ddbd.height_eff,
af_sfsi.height_eff - fd.height,
rel_tol=0.05), af_sfsi.height_eff
assert isclose(frame_ddbd.mu, af_sfsi.mu, rel_tol=0.05), af_sfsi.mu
assert isclose(frame_ddbd.theta_y, af_sfsi.theta_y,
rel_tol=0.05), af_sfsi.theta_y
assert isclose(frame_ddbd.xi, af_sfsi.xi, rel_tol=0.03), af_sfsi.xi
assert isclose(frame_ddbd.eta, af_sfsi.eta, rel_tol=0.03), af_sfsi.eta
assert isclose(frame_ddbd.t_eff, af_sfsi.t_eff,
rel_tol=0.05), (af_sfsi.t_eff, frame_ddbd.t_eff)
def create():
hz = em.Hazard()
hz.z_factor = 0.3 # Hazard factor
hz.r_factor = 1.0 # Return period factor
hz.n_factor = 1.0 # Near-fault factor
hz.magnitude = 7.5 # Magnitude of earthquake
hz.corner_period = 4.0 # s
hz.corner_acc_factor = 0.55
number_of_storeys = 6
number_of_bays = 3
fb = em.FrameBuilding(n_storeys=number_of_storeys, n_bays=number_of_bays)
fb.material = em.ReinforcedConcrete()
interstorey_height = 3.4 # m
masses = 40.0e3 # kg
fb.interstorey_heights = interstorey_height * np.ones(number_of_storeys)
fb.floor_length = 18.0 # m
fb.floor_width = 16.0 # m
fb.storey_masses = masses * np.ones(number_of_storeys) # kg
fb.bay_lengths = [6., 6.0, 6.0]
fb.set_beam_prop("depth", [.5, .5, .5])
fb.n_seismic_frames = 3
fb.n_gravity_frames = 0
fb.horz2vert_mass = 1
df = dbd.design_rc_frame(fb, hz, 0.02)
ps = eqdes.moment_equilibrium.assess(df, df.storey_forces)
moment_beams_cl = ps[0]
moment_column_bases = ps[1]
axial_seismic = ps[2]
print(moment_beams_cl)
eqdes.moment_equilibrium.set_beam_face_moments_from_centreline_demands(
df, moment_beams_cl)
eqdes.moment_equilibrium.set_column_base_moments_from_demands(
df, moment_column_bases)
otm_max = eqdes.moment_equilibrium.calc_otm_capacity(df)
approx_otm = np.sum(df.storey_forces * df.heights)
print(otm_max, approx_otm)
def test_ddbd_frame_consistent():
"""
Test the DBD of a fixed base frame is the same as the SFSI frame when the soil is very stiff.
:return:
"""
fb = ml.initialise_frame_building_test_data()
hz = dm.Hazard()
sl = dm.Soil()
fd = dm.RaftFoundation()
ml.load_hazard_test_data(hz)
ml.load_soil_test_data(sl)
ml.load_raft_foundation_test_data(fd)
frame_ddbd = dbd.design_rc_frame(fb, hz)
sl.override("g_mod", 1.0e10) # make soil very stiff
fd.height = 2.0 # add some height to the foundation
frame_sfsi_dbd = dbd.design_rc_frame_w_sfsi_via_millen_et_al_2018(
fb, hz, sl, fd, found_rot=1e-6)
assert isclose(frame_sfsi_dbd.theta_f, 0.0, abs_tol=1e-5)
assert isclose(frame_ddbd.delta_d, frame_sfsi_dbd.delta_d,
rel_tol=0.01), frame_sfsi_dbd.delta_d
assert isclose(frame_ddbd.mass_eff, frame_sfsi_dbd.mass_eff,
rel_tol=0.001), frame_sfsi_dbd.mass_eff
assert isclose(frame_ddbd.height_eff,
frame_sfsi_dbd.height_eff - fd.height,
rel_tol=0.001), frame_sfsi_dbd.height_eff
assert isclose(frame_ddbd.mu, frame_sfsi_dbd.mu,
rel_tol=0.001), frame_sfsi_dbd.mu
assert isclose(frame_ddbd.theta_y, frame_sfsi_dbd.theta_y,
rel_tol=0.001), frame_sfsi_dbd.theta_y
assert isclose(frame_ddbd.xi, frame_sfsi_dbd.xi,
rel_tol=0.001), frame_sfsi_dbd.xi
assert isclose(frame_ddbd.eta, frame_sfsi_dbd.eta,
rel_tol=0.001), frame_sfsi_dbd.eta
assert isclose(frame_ddbd.t_eff, frame_sfsi_dbd.t_eff,
rel_tol=0.001), frame_sfsi_dbd.t_eff