震中坐標 的英文怎麼說
中文拼音 [zhènzhōngzuòbiāo]
震中坐標
英文
epicenter coordinate-
Under the horizontal earthquake action and wind force, aim at " the pure frame structure with rectangle columns ", " the pure frame structure with special - shaped columns ", " the frame - truss structure with special - shaped columns " and " frame - shear wall structure with special - shaped columns ", earthquake action analysis was done by the spacial finite element method through the changes structural parameter. analyzing systematically " structure vibration mode ", " vibration period ", " structure lateral rigidity ", " seismic action force ", " seismic response force ", " floor seismic shear force ", " lateral horizontal displacement of structure " and " members internal force ". results indicate : ( 1 ) based on equal area, the special - shaped columns replaced the rectangle columns, the structural lateral rigidity enlarges, the lateral displacement minishes obviously, the earthquake response increase slightly, the biggest increasing amount of frame columns axis - compress ratio is smaller than 0. 08. the whole aseismic performance of structure has improved ; ( 2 ) when the section ' s length and section ' s thickness ratio of special - shaped columns is smaller than 3. 6, the structure benefits to resist seismic action ; ( 3 ) the angle of horizontal seismic action with the whole coordinate is 0 degree, structure earthquake response is bigger, belonging to a control factor of structure aseismic design ; ( 4 ) the frame - truss structure with special - shaped columns and the " a " - brace has the biggest lateral rigidity ; ( 5 ) the frame - shear wall structure with special - shaped columns have bigger lateral rigidity and smaller displacement, members internal force enlarged just rightly, have much superiority of resisting seismic action ; ( 6 ) in the higher seismic fortification criterion region ( 8 degree of seismic fortification intensity ), aseismic disadvantageous building site ( iii type site ), adopting special - shaped columns structure system, should reduce possibly the building ' s self - weight in order to reduce the earthquake response ; ( 7 ) the response spectrum method of computing seismic response and the time - history analysis method have similar analysis result
西安理工大學碩士學位論文在水平地震作用下，並考慮風荷載組合，分別對「矩形柱純框架結構」 、 「異型柱純框架結構」 、 「異型柱框一析架結構」及「異型柱框-剪結構」等四種結構體系，通過改變結構參數，運用空間有限元方法，進行地震作用計算。系統地分析研究「結構振型」 、 「振動周期」 、 「結構側向剛度」 、 「結構地震反應力」 、 「樓層地震剪力」 、 「結構側向位移」 、 「層間位移角」 ，以及「構件內力」 。結果表明:在等面積原則下，異型柱代換矩形柱后，結構剛度增大，側向位移明顯減小，地震反應力略有增加，框架柱軸壓比最大增幅小於8 % ，結構整體抗震性能有所提高;當異型柱肢長肢厚比小於等於3 . 6時，結構有利於抗震;水平地震作用力與整體坐標夾角為0度時，結構地震作用效應較大，屬結構設計的控制因素之一;異型柱框一析架結構採用「人」字斜撐，側向剛度大於「八」字斜撐和「人一八」字混合斜撐;異型柱框一剪結構側向剛度大、位移小，構件內力增大適中，是一種抗震性能優越的結構體系:在抗震設防烈度較高地區（ 8度）和抗震不利的建築場地（ m類場地） ，採用異型柱結構體系時，應盡可能減輕結構自重，降低地震作用力;分別採用「振型分解反應譜」法和「時程分析」法進行地震作用計算，兩種方法所得結果基本一致。To analyze conveniently, analysis personnel regularity need to make the operation of background color filling, anode 、 cathode filling, gradual change filling of anode and cathode to eliminate burr phenomena and mosaic phenomena during the filling process. earthquake interpret deal with a lot of data, a mass of proportion operation, coordinate conversion and coordinate mapping must be dong in the plot process, it may frequently appears the phenomena of memory deficiency, graphics refurbish in low speed, graphics overlap and twinkle, so it make use of the technique of memory mapping document, memory dc plotting and local plotting twice and so on to implement quickly and top - quality plotting of lots of gigantic graphics and implement continuous and rolling display
分析人員為了方便分析，也經常需要把波形進行底圖彩色填充，正級、負級填充，正負極的彩色漸變填充，並消除在填充過程中出現的毛刺現象、馬賽克現象。因地震解釋所涉及的數據量很大，在繪圖過程中要進行大量的比例運算、坐標轉換及坐標映射等，就會經常出現內存不足、圖形刷新速度過慢、圖形重疊和閃爍等現象，所以需要採用內存映射文件、內存dc繪圖、局部重繪等技術，實現大數據量巨幅圖形的快速度、高質量繪制以及圖形的連續滾動顯示。Three semi - active control algorithms based on energy absorbed, kinetic energy, and energy of deformation of buildings are investigated. in physics coordinate, both the dynamic characteristics of buildings controlled and the effects of semi - active control using them are studied. the choices of parameters of control devices are studied
基於地震作用下結構的能量響應方程，提出了根據結構吸收能量、相對動能和變形能的隨時間變化（對時間的一次導數）進行結構的半主動「開關」減震的控制律；在物理坐標系中分析了這三種控制律的動力特徵和控制效果，以及作動器參數的選取。
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