Reasons why engineers use built up sections in designing compression members
Homework Answers
Built-up section made by joining two or more section ( may be or may not be rolled) built up sections are capable fulfill the design requirements of structural loads.
Advantage of using buit up section
- Built up section can be made in the desirable dimensions hence it is more economical then the standard section which have limited and fixed dimensions
- Built-up columns are used when the height of the column is such that a rolled section cannot provide a sufficiently large radius of gyration hence in compression members Engineer prefer to use built up section to provide desirable radius of gyration
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Reasons why engineers use built up sections in designing
compression members
Determin members BC, BD, and ED of the truss and state if these members are in tension or compression using the method of joints and the method of sections.
Determin members BC, BD, and ED of the truss and state if these members are in tension or compression using the method of joints and the method of sections.
a) Identify all zero force members b) Use the METHOD OF SECTIONS to determine the member...
a)
Identify all zero force members
b) Use the METHOD OF SECTIONS to determine the member forces
in menbers EF, GP, OP. Indicate if the members are in compression
or in tension.
2. (a) Identify all zero force members. (5 pt.) (b) Use the method of sections to determine the member forces in members EF, (15 pt.) GP, and OP. Indicate if the members are in compression or in tension. F3 [kN] Fs [kN] = 144 [kW] Fu = 143...
For the roof truss shown, use method of sections to determine the forces in members BC and EF
For the roof truss shown, use method of sections to determine the forces in members BC and EF. State whether each is in compression or tension.
HM 5 Compression Members (50pts) Problem 1 Determine iſ the built-up column described below can resist...
HM 5 Compression Members (50pts) Problem 1 Determine iſ the built-up column described below can resist the axial loads. The design loads are Pu = 40 kips and P1 = 120 kips. The column's unbraced length is 15 ft and the ends are pinned in both axes. Use LRFD. The due date is Monday, December 2, 2019 at noon. Problem Data: ASTM A572 Grade 50 Overall depth d= 8.00 in. Flange width bf = 10.5 in. Flange thickness t[= 3/8...
Use the Method of Sections to find the force in members BD, BE, & CE below....
Use the Method of Sections to find the force in members BD, BE, & CE below. Analyze the left section of the structure. Be sure to indicate if each member is in Tension or Compression. 5m 10 kN 10 kN 5m 5m Figure 1
Use Method of Sections please! Determine the bar forces in members dg, eg, and gh. State...
Use Method of Sections
please!
Determine the bar forces in members dg, eg, and gh. State if the members are in tension or compression 120KN 12 120KN 10KN_ 10KN а 10KN de 10KNO k 15 m 1.5 m
Use method of sections to determine the internal force in members BC and GF. Indicate whether...
Use method of sections to determine the internal force in members BC and GF. Indicate whether these member forces are tension or compression. 4 m 4 m 8 m 4 m 6 m 10 kN
To analyze two built-up members that have the same geometry but are fastened differently, determine the...
To analyze two built-up members that have the same geometry but
are fastened differently, determine the maximum applicable shear
force on each cross section, and determine the adjustment in
spacing between the weaker member’s fasteners that would allow the
member to support the equivalent maximum shear force of the
stronger member.
The two cross sections shown below, (a) and
(b), are subjected to a vertical shear force as shown. The
members are fastened by nails that can support a load...
Use the method of joints to determine the forces in members BC BD
F1 = 871 lb F2 = 228 lb L=7ft h=5.25 ft 1 Use the method of joints to determine the forces in members BC BD. BE and CE) and state if the members are in tension or in compression 2 Use the method of sections to determine the forces in members (DF. EF and EG) and state if the members are in tension or in compression.
Use the method of sections to determine the forces in members BC, CD, and DE of...
Use the method of sections to determine the forces in members
BC, CD, and DE of the truss.
Use the method of sections to determine the forces in members BC, CD, and DE of the truss.
a)
Identify all zero force members
b) Use the METHOD OF SECTIONS to determine the member forces
in menbers EF, GP, OP. Indicate if the members are in compression
or in tension.
2. (a) Identify all zero force members. (5 pt.) (b) Use the method of sections to determine the member forces in members EF, (15 pt.) GP, and OP. Indicate if the members are in compression or in tension. F3 [kN] Fs [kN] = 144 [kW] Fu = 143...
For the roof truss shown, use method of sections to determine the forces in members BC and EF. State whether each is in compression or tension.
HM 5 Compression Members (50pts) Problem 1 Determine iſ the built-up column described below can resist the axial loads. The design loads are Pu = 40 kips and P1 = 120 kips. The column's unbraced length is 15 ft and the ends are pinned in both axes. Use LRFD. The due date is Monday, December 2, 2019 at noon. Problem Data: ASTM A572 Grade 50 Overall depth d= 8.00 in. Flange width bf = 10.5 in. Flange thickness t[= 3/8...
Use the Method of Sections to find the force in members BD, BE, & CE below. Analyze the left section of the structure. Be sure to indicate if each member is in Tension or Compression. 5m 10 kN 10 kN 5m 5m Figure 1
Use Method of Sections
please!
Determine the bar forces in members dg, eg, and gh. State if the members are in tension or compression 120KN 12 120KN 10KN_ 10KN а 10KN de 10KNO k 15 m 1.5 m
Use method of sections to determine the internal force in members BC and GF. Indicate whether these member forces are tension or compression. 4 m 4 m 8 m 4 m 6 m 10 kN
To analyze two built-up members that have the same geometry but
are fastened differently, determine the maximum applicable shear
force on each cross section, and determine the adjustment in
spacing between the weaker member’s fasteners that would allow the
member to support the equivalent maximum shear force of the
stronger member.
The two cross sections shown below, (a) and
(b), are subjected to a vertical shear force as shown. The
members are fastened by nails that can support a load...
F1 = 871 lb F2 = 228 lb L=7ft h=5.25 ft 1 Use the method of joints to determine the forces in members BC BD. BE and CE) and state if the members are in tension or in compression 2 Use the method of sections to determine the forces in members (DF. EF and EG) and state if the members are in tension or in compression.
Use the method of sections to determine the forces in members
BC, CD, and DE of the truss.
Use the method of sections to determine the forces in members BC, CD, and DE of the truss.
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