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uploads/drift angle.jpg

drift angle 【海、空】偏航角,漂移角。

drift bottle

The conclusions are as following : ( a ) the element dimensions of frames in 7 . 5 regions are determined mainly by axial compressive ratio . the reinforcements in most columns are dominated by the minimum reinforcement rate . and the element dimensions of frames in 8 . 5 region are determined by both axial compressive ratio and maximum inner - storey drift angle 結果表明: 7度半結構的截面尺寸主要由軸壓比決定,絕大部分柱配筋由最小配筋率控制,而8度半結構的截面尺寸由軸壓比和最大層間位移角兩個因素同時控制,最小配筋率對柱配筋的影響很小。

According to the fact of seismic design of our country , a practical displacement - based seismic design method is put forward . the seismic performance level is divided into three : serviceability , life - safety , and collapse protection , hi order to control the performance level of the structure , the three levels are quantified with story drift angles 為了與我國建筑抗震設計規范的設防目標相協調,并便于在設計計算中予以控制,本文將建筑結構的功能劃分為三個水平,即使用良好、人身安全和防止倒塌,并采用層間位移角限值來量化框架結構的功能水平。

On the basis of analysis previous experiment data , it is conclusion that allowable value of drift angle of elastic and elastic - plastic is 1 / 550 and 1 / 75 respectively , which is applicable to r . c . frame structure with special - shaped column is given out . the conclusion explains that the deformabiliry of r . c . frame structure with special - shaped column lies between rectangle column frame structure and shear wall structure . the calculating formula of allowable value of axial load ratio of special - shaped column is derived , it is compared with that of equaling areas rectangle column 根據對前人試驗數據的統計分析,給出了適用于異形柱框架結構的彈性和彈塑性層間位移角限值分別為1 550和1 75 ;指出了異形柱框架結構的層間變形能力介于普通矩形柱框架結構和剪力墻結構之間;以t形柱為例,推導了異形柱軸壓比限值的計算公式,通過與等面積矩形柱的對比分析,認為異形柱的軸壓比限值與其截面尺寸的比例關系有關;當腹板受壓或翼緣受壓時, t形柱軸壓比限值存在較大差異;不同的荷載角作用,軸壓比限值變化較大;矩形柱的軸壓比限值要大于異形柱的軸壓比限值。

Based on the past results , seismic behavior of r . c . frame structure with special - shaped column is studied , according to the members to the structure in sequence in this paper . the main contents are as follows aspects : first of all , aiming at the characteristics of special - shaped column , various control parameters including allowable value of drift angle , axial load ratio etc , are studied 本文在前人研究成果的基礎之上,就鋼筋混凝土異形柱框架結構的抗震性能,按照從構件到結構的順序展開研究,主要內容如下:第一,針對異形柱的特點,對影響結構抗震性能的主要參數,如層間位移角、軸壓比等進行研究。

Image motion compensation ( imc ) is the key technology of high - resolution space camera . image motion speed is seperated into two vectors in image coordinate for the existence of the drift angle : the forward direction image motion speed and the crosswise image motion speed . in fact , drift angle control eliminates the crosswise image motion speed , so it is a part of image motion compensation 在空間照相,由于偏流角的存在,使得像移速度在像面坐標系存在兩個分量:前向像移速度和橫向像移速度,偏流角控制本質上是消除橫向像移速度,因此,偏流角控制是空間相機像移補償的一部分。

Different kind space cameras use different image motion compensation methods and drift angle controls respectively . applications of drift angle control in mechanical image motion compensation and electronic image motion compensation are introduced and analyzed in this paper 不同類型的空間相機有不同的像移補償方法,也就有不同的偏流角控制方法,本文對機械像移補償法、電子學補償方法等像移補償方法中的偏流角控制及作用進行分析。

The appropriate maximum stories and the appropriate maximum height of buildings are determined by using the various of control index , such as period , shear - compression ratio , allowable value of drift angle etc when earthquake fortification intensity is 8 degree 用各項控制指標,如周期、剪壓比、軸壓比、層間位移角等進行對比分析,給出在8度區該結構的最大可建造層數和最大適用高度。

On the base of codes in 1989 , a series of seismic measures are improved in new codes , such as limit of inner - storey drift angle , minimum reinforced rate , column - beam moment magnification coefficient and moment magnification factor at the column base , etc 在89規范的基礎上,本次規范修訂進一步提高了包括層間位移角限值、最小配筋率、柱一梁級差系數等等在內的一系列抗震設計措施。

The model aims at minimizing the sum of braces stiffness at given story drift angle limitation 它的特點是在相同的層間位移角限值下,所求得的框架各層耗能支撐剛度之和最小。

One drift angle control method in tdiccd tansfer space camera is emphasized 著重介紹和分析了使用tdiccd的傳輸型空間相機的偏流角控制的方法。

The influence of drift angle on satellite photography of three line array camera 偏流角對星載三線陣相機攝影的影響

Allowable value of drift angle of earthquake resistant structure 抗震結構層間位移角限值