the allowable stress design 1 Stress on materials: the allowable stress design method

Stress on materials: the allowable stress… If you have any doubts, you can check your textbook, pp. 68-69

Stress on materials: the allowable stress… Lesson 4 Walls: resistance resistance to compression characteristic resistance to compression of the wall resistance to shear stress characteristic resist. to shear stress Walls: load combination where Ψ0ì = 1 Walls: maximum stress at the supports simple support with N = reaction of the support a, b = size of the support fixed or semi-fixed support with M = moment of support with

Stress on materials: the allowable stress… Lesson 6 Walls: tests on the plane of the wall; combined bending and compression where Nd = total load on the section Φl , Φ = coefficients of reduction of the resistant section due to the eccentricity of the load and to the slenderness of the wall A = resistant area of the section Walls: tests on the plane of the wall; shear stress where Vd = shear stress on the wall b = 1 for e ≤ 0,167l b = % compressed length for 0,167l ≤ e ≤ 0,22l

Stress on materials: the allowable stress… Lesson 6 Walls: concentrated loads where where Aeff = leff · t and in any case elements of category 2 of category 1

Stress on materials: the allowable stress… Lesson 7 Wood: load combinations where gG= 1,4 (= 1 if favourable to the resistance) gQ = 1,5 (= 0 if favourable to the resistance) Ψ0i = combination coefficient (charts) Wood: tests bending shear stress

Stress on materials: the allowable stress… Lesson 8 Steel: resistance Fe360 σd =160N/mm2 Shear stress Fe430 σd = 190 N/mm2 Fe510 σd = 240 N/mm2 Steel: load combination where γQi = 1 (= 0 if favourable to the resistance) ψ0i = combination coefficient (charts) Steel: tests bending shear stress where Av = 1,04 ⋅ h ⋅ sa

Stress on materials: the allowable stress… Lesson 9 Reinforced concrete: resistance Reinforced concrete: bending (N/mm2) compression compression shear stress steel load combination where γQi = 1 (= 0 if favourable to the resistance) ψ0i = combination coefficient (charts)

Stress on materials: the allowable stress… Lesson 11 Reinforced concrete: bending Lesson 12 Reinf. concrete: resistant moments Mr = min(Mrc, Mrs) where: Lesson 15 Reinforced concrete: shear stress resistance of the concrete mix without rebar τc0 ≤ τmax ≤ τc1 necessary transverse rebar τmax >τc1 section not tested for shear stress

Stress on materials: the allowable stress… Lesson 16 Reinforced concrete: transverse rebar minimum transverse rebar at the supports area of the transverse rebar area of the bent-up bars where: mst = number of transverse bars for 1 m b, h = sizes of the beam in cm Ast = area of a transverse bar in m2 V = shear stress