def test_inclined_roll_and_qload(self): ss = se.SystemElements(EA=356000, EI=1330) ss.add_element(location=[[0, 0], [10, 0]]) ss.add_support_hinged(node_id=1) ss.add_support_roll(node_id=-1, angle=45) ss.q_load(q=-1, element_id=1, direction="element") ss.solve() self.assertAlmostEqual(-5, ss.get_node_results_system(1)["Fx"]) self.assertAlmostEqual(-5, ss.get_node_results_system(1)["Fy"]) self.assertAlmostEqual(-5, ss.get_element_results(1)["N"])
def test_inclined_roll_force(self): ss = se.SystemElements() x = [0, 1, 2] y = [0, 0, 0] ss.add_element_grid(x, y) ss.add_support_hinged(1) ss.add_support_roll(3, angle=45) ss.point_load(2, Fy=-100) ss.solve() self.assertAlmostEqual(50, ss.get_node_results_system(3)["Fx"])
def test_inclined_roll_force(self): ss = se.SystemElements() x = [0, 1, 2] y = [0, 0, 0] ss.add_element_grid(x, y) ss.add_support_hinged(1) ss.add_support_roll(3, angle=45) ss.point_load(2, Fy=-100) ss.solve() self.assertAlmostEqual(50, ss.get_node_results_system(3)['Fx'])
def test_rotational_roller_support(self): ss = se.SystemElements() ss.add_element(location=[(0, 0), (0, 1)]) ss.add_support_fixed(node_id=1) ss.add_support_roll(node_id=2, direction="x", rotate=False) ss.q_load(q=-1000, element_id=1, direction="x") ss.point_load(node_id=2, Fy=-100) ss.solve() self.assertAlmostEqual(0.0083333, ss.get_node_results_system(2)["ux"]) self.assertAlmostEqual(0.0, ss.get_node_results_system(2)["uy"]) self.assertAlmostEqual(0.0, ss.get_node_results_system(2)["phi_y"]) self.assertAlmostEqual(166.6667083, ss.get_node_results_system(2)["Ty"])
def test_parallel_trapezoidal_load(self): ss = se.SystemElements() ss.add_element([0, 1]) ss.add_element([0, 2]) ss.add_support_hinged(1) ss.add_support_roll(3, "y") ss.q_load([0, -0.5], 1, "y") ss.q_load([-0.5, -1], 2, "y") ss.solve() self.assertAlmostEqual(-0.75, ss.get_element_results(2)["Nmin"]) self.assertAlmostEqual(0, ss.get_element_results(2)["Nmax"]) self.assertAlmostEqual(-1, ss.get_node_results_system(1)["Fy"])
def test_load_cases(self): ss = se.SystemElements() ss.add_truss_element(location=[[0, 0], [1000, 0]]) ss.add_truss_element(location=[[0, 0], [500, 500]]) ss.add_truss_element(location=[[500, 500], [1000, 0]]) ss.add_support_hinged(node_id=2) ss.add_support_roll(node_id=1, direction="x", angle=None) lc_dead = LoadCase("dead") lc_dead.point_load(node_id=[1], Fx=10) combination = LoadCombination("ULS") combination.add_load_case(lc_dead, factor=1.4) results = combination.solve(ss) self.assertAlmostEqual(0, results["dead"].get_node_results_system(1)["Fx"]) self.assertAlmostEqual(14, results["dead"].get_node_results_system(2)["Fx"])
def test_inclined_roll_equal_to_horizontal_roll(self): ss = se.SystemElements() x = [0, 1, 2] y = [0, 1, 0] ss.add_element_grid(x, y) ss.add_support_hinged(1) ss.add_support_roll(3, "x") ss.point_load(2, Fy=-100) ss.solve() u1 = ss.get_node_results_system(3) ss = se.SystemElements() ss.add_element_grid(x, y) ss.add_support_hinged(1) ss.add_support_roll(3, angle=0) ss.point_load(2, Fy=-100) ss.solve() u2 = ss.get_node_results_system(3) for k in u1: self.assertTrue(np.isclose(u1[k], u2[k]))
def test_inclined_roll_equal_to_horizontal_roll(self): ss = se.SystemElements() x = [0, 1, 2] y = [0, 1, 0] ss.add_element_grid(x, y) ss.add_support_hinged(1) ss.add_support_roll(3, 'x') ss.point_load(2, Fy=-100) ss.solve() u1 = ss.get_node_results_system(3) ss = se.SystemElements() ss.add_element_grid(x, y) ss.add_support_hinged(1) ss.add_support_roll(3, angle=0) ss.point_load(2, Fy=-100) ss.solve() u2 = ss.get_node_results_system(3) for k in u1: self.assertTrue(np.isclose(u1[k], u2[k]))