A Text book On Roofs And Bridges 1
A Text book On Roofs And Bridges 1
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Prob. 34. A wooden upper chord, as in Fig. 25, has a direct compression of 20 000 pounds, and is loaded by a purlin at the middle with 750 pounds. Its length is 16 feet, its size 4 X d inches, and its inclination 45°. Find its depth so that the greatest fiber stress at the middle may be about 800 pounds per square inch.
Art. 21. INVESTIGATION OF ROOF TRUSSES. 3 1 Prob. 35. A light 4-inch I beam which serves as part of the upper chord is 12 feet long, 30° inclination, and is supported at ends. T...he compression on it is 18750 pounds, and it carries three purlins 4 feet apart, each with its load weighing 250 pounds.
Find the greatest fiber stress at the middle of the beam.
Art. 21. Investigation of Roof Trusses.
To investigate an existing roof truss the following steps are necessary : (a) Measure all the pieces, and ascertain the quality of the materials.
{d) Compute all the cross-sections, and the weight of the structure.
(c) Assume the proper snow and wind loads.
(d) Compute the maximum and minimum stresses in all the members.
What to read after A Text book On Roofs And Bridges 1?
You can find similar books in the "Read Also" column, or choose other free books by Mansfield Merriman to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Prob. 34. A wooden upper chord, as in Fig. 25, has a direct compression of 20 000 pounds, and is loaded by a purlin at the middle with 750 pounds. Its length is 16 feet, its size 4 X d inches, and its inclination 45°. Find its depth so that the greatest fiber stress at the middle may be about 800 pounds per square inch.
Art. 21. INVESTIGATION OF ROOF TRUSSES. 3 1 Prob. 35. A light 4-inch I beam which serves as part of the upper chord is 12 feet long, 30° inclination, and is supported at ends. T...he compression on it is 18750 pounds, and it carries three purlins 4 feet apart, each with its load weighing 250 pounds.
Find the greatest fiber stress at the middle of the beam.
Art. 21. Investigation of Roof Trusses.
To investigate an existing roof truss the following steps are necessary : (a) Measure all the pieces, and ascertain the quality of the materials.
{d) Compute all the cross-sections, and the weight of the structure.
(c) Assume the proper snow and wind loads.
(d) Compute the maximum and minimum stresses in all the members.
What to read after A Text book On Roofs And Bridges 1?
You can find similar books in the "Read Also" column, or choose other free books by Mansfield Merriman to read onlineMoreLess
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