高層建築物所裝置塔式起重機與設備之地震反應分析
Date Issued
2004
Date
2004
Author(s)
蕭鳳琳
DOI
zh-TW
Abstract
The study is to analyze cranes and equipments on high buildings. Because they are loaded on high buildings, there is a effect of magnification in earthquake input. So, they get more earthquake force loaded on high buildings rather than ground. This study gives an analysis on the heavy cranes and the light equipment.
First, we analyze crane on high buildings. Mass of crane is huge ,so it may interact with the building under the earthquake. To analysis the crane, we have to connected it with the building and analysize them as a whole. This study creates a analytical model which conforms with reality, and nonlinear history analysis is made on it with some reasonable assumptions.
Second, the equipment gets less mass, so it can be analysized separately with the building. We may first find the greatest absolute acceleration of the floor where the equipment is, and then find the force on the equipment according to the floor spectrum. We give a simple estimation for the greatest absolute acceleration of the floor, and compare them with the history analysis made on the structural analytical modal.We also find out the floor spectrum according to the modal. Lastly, the nonlinear static analysis is made in order to see where the performance point of the building reaches.
Subjects
樓版之最大絕對加速度
非線性靜力分析
樓版之反應譜
設備
塔式起重機
greatest absolute acceleration of the floor
equipments
cranes
floor spectrum
Type
thesis
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