Note
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Frame Element Responses¶
import openseespy.opensees as ops
import opstool as opst
import opstool.vis.pyvista as opsvis
opst.load_ops_examples("Frame3D2")
ops.timeSeries("Linear", 1)
ops.pattern("Plain", 1, 1)
for etag in [5, 6, 7, 8, 15, 16, 17, 18, 19, 20, 21]:
ops.eleLoad("-ele", etag, "-type", "-beamUniform", 0.0, -10) # wy=0.0, wz=-10.0
opsvis.set_plot_props(point_size=0, line_width=3)
fig = opsvis.plot_model(show_nodal_loads=True, show_ele_loads=True, show_local_axes=True, show_ele_numbering=True)
fig.show()

ops.constraints("Transformation")
ops.numberer("RCM")
ops.system("BandGeneral")
ops.test("NormDispIncr", 1.0e-8, 6, 2)
ops.algorithm("Linear")
ops.integrator("LoadControl", 0.1)
ops.analysis("Static")
ODB = opst.post.CreateODB(odb_tag=1)
for i in range(10):
ops.analyze(1)
ODB.fetch_response_step()
ODB.save_response()
OPSTOOL™ :: All responses data with _odb_tag = 1 saved in G:\opstool\docs\.opstool.output\RespStepData-1.odb!
sphinx_gallery_thumbnail_number = 2
opsvis.set_plot_colors(frame="black", cmap="jet")
fig = opsvis.plot_frame_responses(
odb_tag=1,
slides=True,
resp_type="sectionForces",
resp_dof="My",
unit_symbol="N·m",
scale=1.0,
style="surface", # "wireframe", "surface"
opacity=0.75, # opacity for "surface" style
show_values="eleMaxMin",
show_bc=True,
bc_scale=3.0,
)
fig.show()

OPSTOOL™ :: Loading responses data from G:\opstool\docs\.opstool.output\RespStepData-1.odb ...
fig = opsvis.plot_frame_responses(
odb_tag=1,
slides=True,
resp_type="sectionForces",
resp_dof="Mz",
unit_symbol="N·m",
scale=1.0,
style="surface", # "wireframe", "surface"
opacity=0.75, # opacity for "surface" style
show_values="eleMaxMin",
show_bc=True,
bc_scale=3.0,
)
fig.show()

OPSTOOL™ :: Loading responses data from G:\opstool\docs\.opstool.output\RespStepData-1.odb ...
fig = opsvis.plot_frame_responses(
odb_tag=1,
slides=False,
step="absMax",
resp_type="sectionForces",
resp_dof="My",
unit_symbol="kN·m",
unit_factor=1e-3,
scale=1.5,
style="wireframe", # "wireframe", "surface"
color="blue", # single color for wireframe
line_width=2, # line width for wireframe
show_values=False,
show_bc=True,
bc_scale=3.0,
)
fig.show()

OPSTOOL™ :: Loading responses data from G:\opstool\docs\.opstool.output\RespStepData-1.odb ...
fig = opsvis.plot_frame_responses_animation(
odb_tag=1,
resp_type="sectionForces",
resp_dof="My",
unit_symbol="N·m",
scale=1.5,
# style="wireframe", # "wireframe", "surface"
# line_width=2, # line width for wireframe
style="surface", # "wireframe", "surface"
opacity=0.75, # opacity for "surface" style
show_values="MaxMin",
savefig="images/FrameRespAnimation.gif",
framerate=2,
show_bc=True,
bc_scale=3.0,
)
fig.close()

OPSTOOL™ :: Loading responses data from G:\opstool\docs\.opstool.output\RespStepData-1.odb ...
Animation has been saved as images/FrameRespAnimation.gif!
Total running time of the script: (0 minutes 3.186 seconds)