臺灣博碩士論文加值系統

本研究將安裝有三角形加勁阻尼裝置之單層彎矩構架模擬為單自由度
系統，並在考慮構架之位移－荷重模式為三線性狀況下，進行結構系統特
性係數和含加勁阻尼裝置構架的消能能力的探討，同時配合現行規範的表
示方式，討論加勁阻尼裝置所相對應的 、 、 等係數，以求得加勁阻尼
構架之設計地震力。此外，並就近源地震對含加勁阻尼裝置構架的影響做
了初步的探討。 加勁阻尼構架的結構特性係數和韌性折減係數會隨著
系統的周期改變而有所不同，且受地盤土質的影響。此外， 、 、 等係
數與加勁阻尼裝置的承擔剪力比，韌性比以及與斜撐的勁度比有關；因此
求出的 、 ，並不同於規範中以固定常數表現。加勁阻尼裝置無論在台灣
地區何種地盤上，都可以看出在中、短周期都具有相當好的消能能力。而
經由使用簡單的近源地震加速度歷時模式所進行的參數研究中發現，加勁
組尼裝置的結構特性係數和消能能力都會降低。

In this study, assuming the load-displacement relation of
both frame and TADAS device to be bilinear, a trilinear load-
displacement relation is constructed to compute the strength-
reduction factor for a frame installed with a TADAS and the
capability of TADAS in dissipating earthquake energy. In order
to compare with the expression for the design earthquake force
adopted in Taiwan, the strength reduction factor is expressed as
the product of 、 and which are allowable stress factor,
overstrength factor and ductility reduction factor,
respectively. In addition, using a simple form of near-field
earthquake motion, the effect of near-field earthquake is also
investigated. The strength reduction factor and the ductility
reduction factor vary with period of the system and the site
condition. The values of , and are functions of ductility of
TADAS, ratio of shear force resisted by TADAS to that of story
shear and the stiffness of TADAS device, and the values of and
are not constant as adopted in the code. At the short and
medium range of structural period, the TADAS exhibits very good
ability in dissipating the earthquake energy. However, the
strength reduction factor and the ability to dissipate the
earthquake energy will be reduced for structure with TADAS
subjected to near-field earthquake.