def build_load_function(self):
self.loads_nodelta = [load for load in self.Loads if load.kind != "END_DELTA"]
self.loads_delta = [load for load in self.Loads if load.kind == "END_DELTA"]
self.equations, self.equation_strings = ppbeam.center_span_piecewise_function(self.loads_nodelta)
if len(self.loads_delta) == 0:
pass
else:
self.equations_delta, self.equations_strings_delta = ppbeam.center_span_piecewise_function(self.loads_delta)
# points of inflection
self.zero_shear_loc = ppbeam.points_of_zero_shear(self.equations[0])
self.zero_moment_loc = ppbeam.points_of_zero_shear(self.equations[1])
self.zero_slope_loc = ppbeam.points_of_zero_shear(self.equations[2])
# add points of inflection to the charting stations
self.chart_stations.extend(self.zero_shear_loc)
self.chart_stations.extend(self.zero_moment_loc)
self.chart_stations.extend(self.zero_slope_loc)
self.chart_stations = list(set(self.chart_stations))
self.chart_stations.sort()
self.loads_built = 1
def build_load_function(self):
Mi = sum(self.mi)
Mj = sum(self.mj)
L1 = ppbeam.point_moment(Mi, 0, self.Length)
L2 = ppbeam.point_moment(Mj, self.Length, self.Length)
self.equations, self.equation_strings = ppbeam.center_span_piecewise_function(
[L1, L2])
# points of inflection
self.zero_shear_loc = ppbeam.points_of_zero_shear(self.equations[0])
self.zero_moment_loc = ppbeam.points_of_zero_shear(self.equations[1])
self.zero_slope_loc = ppbeam.points_of_zero_shear(self.equations[2])
# add points of inflection to the charting stations
self.chart_stations.extend(self.zero_shear_loc)
self.chart_stations.extend(self.zero_moment_loc)
self.chart_stations.extend(self.zero_slope_loc)
self.chart_stations = list(set(self.chart_stations))
self.chart_stations.sort()
self.loads_built = 1
def build_load_function(self):
self.equations, self.equation_strings = ppbeam.center_span_piecewise_function(self.Loads)
self.loads_built = 1