A one-storey structure being tested in a laboratory can be idealized by an infinitely rigid beam supported by two columns. The mass of the columns is negligible when compared to the total mass is 1,941 kg which is concentrated at the level of the roof. To determine the dynamic properties of the structure, a free vibration test is performed by moving the roof 20 mm with a cable and a winch. The cable is suddenly cut to set the structure in free vibration. The maximum displacement is 15 mm after one complete cycle which takes place in 0.2 sec. The damping coefficient, in kN-s/m, is nearest to
A one-storey structure being tested in a laboratory can be idealized by an infinitely rigid beam supported by two columns. The mass of the columns is negligible when compared to the total mass is 1,941 kg which is concentrated at the level of the roof. To determine the dynamic properties of the structure, a free vibration test is performed by moving the roof 20 mm with a cable and a winch. The cable is suddenly cut to set the structure in free vibration. The maximum displacement is 15 mm after one complete cycle which takes place in 0.2 sec. The damping coefficient, in kN-s/m, is nearest to
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A one-storey structure being tested in a laboratory can be idealized by an infinitely rigid beam supported by two columns. The mass of the columns is negligible when compared to the total mass is 1,941 kg which is concentrated at the level of the roof. To determine the dynamic properties of the structure, a free vibration test is performed by moving the roof 20 mm with a cable and a winch. The cable is suddenly cut to set the structure in free vibration. The maximum displacement is 15 mm after one complete cycle which takes place in 0.2 sec. The damping coefficient, in kN-s/m, is nearest to
Select one:
a. 113
b. 136
c. 122
d. 105
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