000			03364nam a2200421 4500
005			20260818094245.0
008			310798 th eng
035			_a.b10215049
099		9	_aAIT Thesis no.ST-92-12
100	0		_aMyint Myint Than
245	1	0	_aDynamic energy dissipation of in-plane reinforced concrete
260			_aBangkok : _bAsian Institute of Technology, _c1992
300			_a86, A-22 leaves
490	1		_aThesis ; _vno. ST-92-12
500			_aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology
502			_aThesis (M.Eng.) - Asian Institute of Technology, 1992
520			_aQuantification of damping in cable systems plays an important role in design of modern cable-supported structures. An attempt is made to estimate the damping for a cable-tie sy~tem, which is essentially a special case of a cable system. A method is proposed based on modal damping ratio, which is represented by the ratio of damping energy to potential energy of cabte system. In order to verify the proposed method of damping estimation, a series of experiments is also conducted with a model of cable-tie system. Two different cable-tie systems are studied to show the applicability of proposed method. Free vibration record is used to estimate damping experimentally. The finite element method is employed to calculate dynamic strain amplitude, which is directly associated with potential energy and dissipated energy. Dissipated energy is assumed to be represented in terms of loss factor and strain energy. The loss factor value of single cable is used to estimate dissipated energy of individual cables in the system. The loss factor of cables are obtained by conducting single cable experiment. Results of experimental and proposed analytical method are cohsistent. It is found that the modal damping ratio of the cable-tie system can be evaluated by considering the contribution from individual cables in the system. Proposed method can be used to estimate damping in a cable system analytically.
650		0	_aReinforced concrete structures
650		0	_aEarthquake resistant design
700	1		_aMaekawa, Koichi, _eChairperson
700	1		_aYamaguchi, Hiroki, _eExamination committee
700	0		_aKamol Vajarasathira, _eExamination committee
710	2		_aGerman Academic Exchange Service (DAAD), _eScholarship donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. ST-92-12
856			_3Full-Text _u http://203.159.5.9/ait-thesis/detail.php?q=B16910
907			_a.b10215049 _bmnait _cs
902			_a240329
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945			_lmnait
945			_lmnait
945			_lmnarc
942			_c20
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