【摘 要】
:
Based on the principle of tuned mass damper (TMD), the method of using laminated rubber bearing (LRB) to connect TMD with structure is discussed in this paper.
【机 构】
:
Department of Civil Engineering
论文部分内容阅读
Based on the principle of tuned mass damper (TMD), the method of using laminated rubber bearing (LRB) to connect TMD with structure is discussed in this paper. This is a new type of TMD systemsuspended structure. To test the function of quake-reduction and the possibility of application, this paper explores the suspended top floor through shaking table test. In the model test, an electro-hydraulic shaking table was used. The main structure model was a four-story steel frame structure. The block to combat the structural quake was a concrete block. LRB was used to connect the block to the main structure. In order to analyze the efficiency of TMD, the fundamental frequencies of the main structure and block of TMD were measured separately first. Then, the frequencies of the main structure with the block and without the block were compared respectively under sine and imitative quake waves. The test shows that this new-typeTMD system is effective in combating the structural quake often reducing the acceleration of the top floor by more than 25 %. Because of the easy availability of the method, it is endowed with practical feasibility.
其他文献
coupled regional air-sea model is developed by using the regional climate model (P-σ RCM)and the regional ocean model (POM), which is used to simulate East Asi
A fuzzy mathematical method is used to discriminate the similarities of pelagic fishes landed in the 9180 hauls by 10 light-seine information yessels in the sou
Single zircons from two trondhjemitic gneisses and two clastic metasedimentary rocks without Eu anomaly of the Kongling high-grade metamorphic terrain are dated
Using daily observational rainfall data covered 194 stations of China from 1961 to 1995 and NCEP model analyzed pentad precipitation data of global grid point f
In this paper we propose a novel edge-based, fast and effective stereo matching method, which utilises various geometrical and local area constraints and struct
Coral samples collected at the outlet and the inlet of the Third Nuclear Power Plant were measured for the d 18O and d 13C, indicating the surrounding seawater
According to the theory of petroleum system and the characteristics of petroleum geology, the Xihu depression in the East China Sea shelf basin is divided into
According to the observation of the number and mass concentration spectra of atmospheric aerosols, the total suspended particulates (TSP) and their size distrib
Geologic, petrographic and petrochemical studies of the lateMesozoic K-rich melanocratic dykes, including lamprophyres, andesite porphyrites and dacite-porphyry
Vehicle routing problem with time-varying speed(VRPTS)is a generalization of vehicle routing problem in which the travel speed between two locations depends on