국내 최대 기계 및 로봇 연구정보

공학설계D/B

공학설계D/B 게시판 내용
Volume Title	Wind Engineering
Volume No	Natural vibration parameters of structures - core, shear, frame buildings, towers, 2D frameworks.
DATA Title	Undamped natural vibration of shear buildings.
DATA Item	79005
KEYWORD	building, frequency, lateral, mode, natural, program, shape, shear, torsion, vibration
ISBN	0 85679 249 7
ABSTRACT	ESDU 79005 gives methods for obtaining the natural frequencies, mode shapes and normal-mode generalised masses for both lateral and torsional vibration of a shear building. A shear building is a building that can be idealised to have inextensible columns and rigid floors so that no joint rotation occurs when vibrating. The data are given in graphs for a shear building with equal mass in each storey and having uniform stiffness or linearly varying stiffness with storey in the vertical direction. In that case the data relate to the first four uncoupled modes of buildings with from 4 to 60 storeys. A method of calculating the parameters for coupled vibration from the uncoupled motion parameters is given for a special class of shear building. For shear buildings that cannot be idealised to those special cases, a computer program is provided in Fortran as ESDUpac A7905 on disc (uncompiled) in the software volume; it is also supplied compiled running under MS DOS with the ESDUview user-friendly shell that prompts on-screen for the input data. A practical worked example illustrates the use of the data.