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1.8-18 A removable sign post on a hurricane evacu- ute (see figure part a) consists of...
A steel rod whose diameter is equal to 15 mm is held between rigid walls with...
A steel rod whose diameter is equal to 15 mm is held between
rigid walls with no initial stress, see 2(a). The steel properties are ? = 12 × 10?6/ oC
and E = 200 GPa.
(a) What is the temperature drop
?T (in degrees Celsius) at which the average shear stress in the
12-mm diameter bolt becomes 55 MPa.
(b) At the temperature that you defined in (a), what is the
normal stress in the rod?
(c) What are...
Three wooden planks are fastened together by a series of bolts to form a column. The...
Three wooden planks are fastened together by a series of bolts to form a column. The diameter of each bolt is 12-mm and the inner diameter of each washer is 16-mm, which is slightly larger than the diameter of the holes in the planks. Determine the smallest allowable outer diameter d of the washers, knowing that the average normal stress in the bolts is 32 MPa and that the bearing stress between the washers and the planks must not exceed...
A W410 × 60 steel beam (see Appendix B) is simply supported at its ends and carries a concentrate...
A W410 × 60 steel beam (see
Appendix B) is simply supported at its ends and carries a
concentrated load of P = 300 kN at the center of a 6.0-m
span. The W410 × 60 shape will be strengthened by adding two cover
plates of width b = 250 mm and thickness t = 16
mm to its flanges, as shown. Each cover plate is attached to its
flange by pairs of bolts spaced at intervals of s =...
Part 1 A cantilever flexural member is fabricated by bolting two identical cold-rolled steel channels back-to-back,...
Part 1
A cantilever flexural member is fabricated by bolting two
identical cold-rolled steel channels back-to-back, as shown. The
cantilever beam has a span of L = 1300 mm and supports a
concentrated load of P = 500 N. The cross-sectional
dimensions of the built-up shape are shown, where d = 40
mm, w = 65 mm, and t = 3 mm. The effect of the
rounded corners can be neglected in determining the section
properties for the built-up shape....
PROBLEM 6.5 The American Standard rolled-steel beam shown has been reinforced by attaching to it two...
PROBLEM 6.5 The American Standard rolled-steel beam shown has been reinforced by attaching to it two 16 x. 200 mm plates, using 18-mm-diameter bolts spaced longitudinally every 120 mm. Knowing that the average allowable shearing stress in the bolts is 90 MPa determine the largest permissible vertical shearing force. (see Hint table) -16 mm X 200 mm Part A(mm) d (mm) Ad? (109 mm) (106 mm) S310 X 52 Top plate S310x52 Bot. plate 6650 0 95.3 1 164.86 95.44...
Figure 1 shows A fully symmetrical I beam of area A1 = 5472 mm?, and second...
Figure 1 shows A fully symmetrical I beam of area A1 = 5472 mm?, and second moment of areal = 59.9 x 10 mm' that is strengthened by attaching a plate of 10 mm thickness and 100 mm breadth at the top as shown in Figure 2. Pairs of 12 mm diameter steel bolts are used at regular 200 mm spacing along the beam to connect the plate to the I beam in an arrangement as shown in Figure 3....
A simply supported composite beam 3 m long carries a uniformly distributed load of intensity q= 30 kN/m (see figure)
A simply supported composite beam 3 m long carries a uniformly distributed load of intensity q= 30 kN/m (see figure). The beam is constructed of a wood member, 100 mm wide by 150 mm deep, and is reinforced on its lower side by a steel plate 8 mm thick and 100 mm wide. (a) Find the maximum bending stresses σw and σs, in the wood and steel, respectively, due to the uniform load if the moduli of elasticity are Ew =...
A hollow box beam ABC of length L is supported at end A by a 20...
A
hollow box beam ABC of length L is supported at end A by a 20 mm
diameter pin thet passes through the beam and its supporting
pedestals (see figure). The roller support at B is lovated at
distance L/3 from end A.
a.) determine the average shear stress (MPa) in the pin due to
a load P equal to 10kN.
b.) Determine the average bearing stress (MPa) between the pin
and the box beam if the wall thickness of...
(16 points) Difficulty (4/5) A mechanical connection known as a clevis and pin is shown. The...
(16 points) Difficulty (4/5)
A mechanical connection known as a clevis and pin is shown. The
dimensions of the assembly are given as:
a = 30 mm
b = 33 mm
c = 10 mm
d = 18 mm
t = 22 mm
W = 45 mm
L = 113 mm
In order to avoid failure in the materials used to create the
parts:
-The normal stress in the pin must be limited to 680 MPa.
-The shearing stress in...
please answer all thank you Homework - State Loading Advanced (Part 2) A solid round 20...
please answer all thank you
Homework - State Loading Advanced (Part 2) A solid round 20 mm diameter hur is based as shown below, where the lead iP XOAN, the downward tr adise.SSAN, the lig h the is M-20 Nm, and the true lead is T-30 Nm. This results in certain stresses in the bar the base al Points located at the top of the har d ew from (located ISO w from 4-y il Decated 270cw from located in...
A steel rod whose diameter is equal to 15 mm is held between
rigid walls with no initial stress, see 2(a). The steel properties are ? = 12 × 10?6/ oC
and E = 200 GPa.
(a) What is the temperature drop
?T (in degrees Celsius) at which the average shear stress in the
12-mm diameter bolt becomes 55 MPa.
(b) At the temperature that you defined in (a), what is the
normal stress in the rod?
(c) What are...
Three wooden planks are fastened together by a series of bolts to form a column. The diameter of each bolt is 12-mm and the inner diameter of each washer is 16-mm, which is slightly larger than the diameter of the holes in the planks. Determine the smallest allowable outer diameter d of the washers, knowing that the average normal stress in the bolts is 32 MPa and that the bearing stress between the washers and the planks must not exceed...
Part 1
A cantilever flexural member is fabricated by bolting two
identical cold-rolled steel channels back-to-back, as shown. The
cantilever beam has a span of L = 1300 mm and supports a
concentrated load of P = 500 N. The cross-sectional
dimensions of the built-up shape are shown, where d = 40
mm, w = 65 mm, and t = 3 mm. The effect of the
rounded corners can be neglected in determining the section
properties for the built-up shape....
PROBLEM 6.5 The American Standard rolled-steel beam shown has been reinforced by attaching to it two 16 x. 200 mm plates, using 18-mm-diameter bolts spaced longitudinally every 120 mm. Knowing that the average allowable shearing stress in the bolts is 90 MPa determine the largest permissible vertical shearing force. (see Hint table) -16 mm X 200 mm Part A(mm) d (mm) Ad? (109 mm) (106 mm) S310 X 52 Top plate S310x52 Bot. plate 6650 0 95.3 1 164.86 95.44...
Figure 1 shows A fully symmetrical I beam of area A1 = 5472 mm?, and second moment of areal = 59.9 x 10 mm' that is strengthened by attaching a plate of 10 mm thickness and 100 mm breadth at the top as shown in Figure 2. Pairs of 12 mm diameter steel bolts are used at regular 200 mm spacing along the beam to connect the plate to the I beam in an arrangement as shown in Figure 3....
A
hollow box beam ABC of length L is supported at end A by a 20 mm
diameter pin thet passes through the beam and its supporting
pedestals (see figure). The roller support at B is lovated at
distance L/3 from end A.
a.) determine the average shear stress (MPa) in the pin due to
a load P equal to 10kN.
b.) Determine the average bearing stress (MPa) between the pin
and the box beam if the wall thickness of...
(16 points) Difficulty (4/5)
A mechanical connection known as a clevis and pin is shown. The
dimensions of the assembly are given as:
a = 30 mm
b = 33 mm
c = 10 mm
d = 18 mm
t = 22 mm
W = 45 mm
L = 113 mm
In order to avoid failure in the materials used to create the
parts:
-The normal stress in the pin must be limited to 680 MPa.
-The shearing stress in...
please answer all thank you
Homework - State Loading Advanced (Part 2) A solid round 20 mm diameter hur is based as shown below, where the lead iP XOAN, the downward tr adise.SSAN, the lig h the is M-20 Nm, and the true lead is T-30 Nm. This results in certain stresses in the bar the base al Points located at the top of the har d ew from (located ISO w from 4-y il Decated 270cw from located in...
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