A 2x10 wood beam (actual dimensions 38.1 mm x 235 mm) is being used to support the load shown below. What is the maximum value of P so that the maximum allowable stresses are not exceeded?
The provided equation for shear stress is the maximum shear stress in rectangular sections
The provided equation for shear stress is the maximum shear stress in rectangular sections
A 2x10 wood beam (actual dimensions 38.1 mm x 235 mm) is being used to support the load shown below
Q.6) Seven wood planks are used to construct a built-up beam shown below. The beam is subjected to a vertical force of 12 kN, and has an Iz 1.5 x 109 mm The allowable shear force for nails at A and B is 250 N. Determine the maximum spacing for horizontal nails at A and vertical nails at B. 50 300 50 A 100 50 400 50 200 Dimensions in mm Q.6) Seven wood planks are used to construct a...
Question 2 (30 marks) The wood beam below (cross section dimensions 150 x 250 mm, as indicated) is strengthened at the bottom using 3 steel reinforcement plates of the same 12mm thickness (see figure), perfectly glued to the wooden beam. The modulus of elasticity for wood is E,-12 GPa and for steel E,-200 GPa. Given the allowable stresses (in both tension and compression) for wood ơw-12 MPa and for steel Ơs = 150 MPa, determine the largest possible moment due...
Determine the Maximum load P that can be applied to the beam shown below if the allowable bending fiber stress are 15,000 pounds 3. Determine the maximum load P that can be applied to the beam shown below if ending fiber stresses are 15,000 pounds per square inch in tension 25,000 pounds per square inch in compression. Note: Dimensions are in the allowable b and inches for the cross-section of the beam, and in feet for the length of the...
03(a) A reinforced concrete beam is acted on by a positive bending moment. reinforcement consists of 4 bars of 28 mm diameter. The modulus of elasticity is E 25 GPa for the concrete and E-200 GPa for the steel. The allowable stresses for the concrete and steel are ơ.-9.2 MPa and ơ.-135 MPa, respectively. Determine the maximum permissible positive bending moment. (10 marks) 625 mm 4 bars 28 mm -300 mm Figure Q3(a) 03(b) A simply supported beam that is...
A wood beam supports the loads shown. The cross-sectional dimensions of the beam are shown in the second figure. Assume LAB=2.8 m, LBC=1.1 m, LCD=1.6 m, w=12 kN/m, P=6.8 kN, b1=20 mm, b2=75 mm, d1=100 mm, and dz=240 mm. Determine the magnitude of: (a) the maximum horizontal shear stress Tmax in the beam. (b) the maximum tension bending stress max (and location x) in the beam. - X BI ec LAB I LBCI LCDJ bil b2 bil Answers: kPa. (a)...
A wood beam (1) is reinforced on its lower surface by a steel plate (2) as shown in the figure. Dimensions of the cross section are b 1 = 220 mm , d = 385 mm , b 2 = 190 mm , and t = 25 mm . The elastic moduli of the wood and steel are E 1 = 12.5 GPa and E 2 = 200 GPa , respectively. The allowable bending stresses of the wood and steel...
A composite beam of steel and wood is loaded as shown. The dimensions of the wood block are 4.00 in by 16.0 inches, with steel plates that are 4.00 in wide and 0.75 in thick. The load varies along the beam as, w(x) 100 5x2 where x-0 at the wall, x is in feet, and the load is in kip/ft. The length of the beam is 15 feet. Assume all within elastic limit. Determine The reactions at the wall a....
A composite beam of steel and wood is loaded as shown. The dimensions of the wood block are 4.00 in by 16.0 inches, with steel plates that are 4.00 in wide and 0.75 in thick. The load varies along the beam as, w(x) 100 5x2 where x-0 at the wall, x is in feet, and the load is in kip/ft. The length of the beam is 15 feet. Assume all within elastic limit. Determine The reactions at the wall a....
The cantilever beam shown in the figure is subjected to a concentrated load at point B. The stresses acting at point H on the beam are to be determined. H Cross section For this analysis, use the following values: Beam and Load. a = 1.75 m b=0.30 m @= 60 degrees P = 25 KN Cross-sectional Dimensions d=250 mm bp = 125 mm ty=7 mm tw = 7 mm C= 30 mm (Note: The load P applied at Bacts in...
A wood beam (1) is reinforced on its lower surface by a steel plate (2) as shown in the figure. Dimensions of the cross section are b1=235mm, d=365mm, b2=185mm and t=15mm. The elastic moduli of the wood and steel are E1=12.5Gpa and E2=200Gpa , respectively. The allowable bending stresses of the wood and steel are 6Mpa and 140Mpa , respectively. This cross section is used for a simply supported beam that spans 10m . What is the largest uniformly distributed...