reversed steel 中文意思是什麼

In this thesis, four types of steel beam - rectangular cfst column connections, including normal welded flange plate ( wfp ) connection, bolted flange plate ( bfp ) connection, stiffened end plate ( sep ) connection and double split - tee plate ( dst ) connection, were designed based on the configuration of steel frame connection. total 8 models, 2 models of each kind of connections were tested under low - reversed cyclic loading at the end of cfst columns. the relationships between force and displacement at the end of columns, the relationships between the moment and rotation of the joints, degradations of strength and stiffness, ductility, failure mechanism and failure characteristics of these four connections under different axial - compression ratios were presented

本文借鑒鋼框架節點構造，設計了四種類型矩形鋼管混凝土柱與鋼梁連接節點，包括常規栓焊（ wfp ）節點、翼緣全螺栓連接（ bfp ）節點、雙t板連接（ dst ）節點以及加勁端板連接（ sep ）節點，進行了四類節點8個模型試件在柱端低周反復荷載作用下的抗震性能試驗研究，比較了不同軸壓比下節點的滯回性能、強度與剛度退化、延性、破壞機理與破壞特徵，主要結論有： 1 、節點的位移滯回曲線與轉角滯回曲線為塊型分佈，沒有或略有捏攏現象，耗能能力強； 2 、軸壓比對節點滯回曲線有顯著影響，全部節點都有顯著的剛度退化； 3 、位移與轉角骨架曲線在峰值荷載後有較長的水平或下降段，具有良好的延性性能； 4 、從整體抗震性能上看，翼緣全螺栓連接節點、雙t板連接與加勁端板連接節點都優于常規栓焊節點，可在實際工程中加以推廣。

The studies of the anchorage performances of steel column bases under uniaxial reversed loads are carried out through tests and theory

為此本文進行了單向重復加載下的鋼筋混凝土承臺-鋼柱腳試件錨固性能試驗研究和理論分析。

This paper attempts to research the seismic behavior of joints between concrete - filled steel tubular core columns and prestressed concrete beams under reversed cyclic loads, in order to make the joints become a good kind of seismic system

本文旨在對鋼管混凝土核心柱與預應力混凝土梁框架節點在低周反復荷載作用下的抗震性能進行研究，以便使這種節點最終成為一種完善的抗震體系。

In the ansys software environment, two three - dimensional finite models are constructed, based the experiments of four steel beam - steel reinforced concrete column joints under low reversed cyclic loading by beijing polytechnic university ( 2000 )

本文在鋼梁?鋼骨混凝土柱節點抗震性能試驗研究的基礎上，應用大型有限元軟體ansys對其中兩個不同類型的節點試件進行了非線性有限元分析。

Based on the previous research results, the test study on quasi - static seismic resistance behavior of the monolayer and single - stride prestressed concrete flat - beam frame structures are mostly carried through. the low - cyclic reversed loading test of two frames with the same size and the same intension grade are conducted. one frame is made of ordinary concrete, the other is made of steel - fiber concrete

研究結果表明：將鋼纖維摻入混凝土中用於框架結構，能使預應力扁梁框架具有足夠好的抗震性能，只要設計得當，可以形成梁鉸耗能機構及整體破壞機制，且具有較好的耗能及抵抗強震的能力。

The idiographic contents are listed as follows : 1 ) through the tests of the anchorage performances of steel column bases of 1 / 5 scale under uniaxial reversed loads, the tested ultimate loads, ductility, stiffness and reasonable modes of reinforcement design of two specimens are presented in this thesis

本文主要工作: 1 .進行了兩個1 / 5縮尺的鋼筋混凝土承臺-鋼柱腳試件單向重復加載下的錨固性能試驗研究，對試件的錨固承載力、延性、剛度以及合理配筋型式等進行了研究。

In this paper, two steel bracing - retrofitting methods are proposed for the rc frame structures, which are steel angels - at - four - corners method and embedded - steel framework method. two test models of one - story and two - bay reinforced concrete frame retrofitted with above two methods separately are designed and conducted low - cyclic reversed load tests, their aseismic behaviors such as strength, stiffness, ductility and energy - dissipating capability are studied

本文提出了兩種支撐抗震加固方法，即外包鋼支撐加固法和鋼內框支撐加固法；設計了兩榀單層兩跨鋼筋混凝土框架結構試驗模型，進行了水平低周反復荷載試驗，重點探討其強度、剛度、延性和耗能能力等抗震性能。

A quasi - static experiment under low reversed cyclic load of three full - size cross - shaped specimens ( two specimens ' columns are steel tubes filled with concrete and another is an empty steel tube ) of diaphragm - through style beam - column joints is designed and conducted

摘要設計了低周反復荷載作用下3個十字形足尺隔板貫通式樑柱節點試件（其中2個節點的柱子澆築了混凝土， 1個為空鋼管）的擬靜力試驗。

Energy - dissipation technology is a much more rational, effective, safe, economic earthquake resistant method, which develops quickly in recent years, and it is more suitable for high rise steel structure. a energy - dissipation braced frame is designed with viscous damper as energy - dissipation device. test on the frame under cyclic reversed lateral load of various frequency and displacement is carried out to check its energy - dissipation capacity and structural measures

消能減震技術是近年來迅速發展起來的一種更加合理、有效、安全、經濟的結構抗震方法，中高層鋼結構建築是採用消能減震技術理想的結構體系；為此，本文設計了一榀耗能支撐框架，採用粘滯阻尼器作為消能裝置，通過不同頻率、不同位移下的水平低周反復荷載試驗，驗證了消能支撐框架優異的耗能能力，證明相關構造措施是行之有效的。

Based on experimental research and theoretical analysis, investigations on the new type of joint are made systematically, the main contents and results include the following items. 1 four specimens of new joints between cfrt columns and steel beams are designed. by low - cyclic reversed load test, skeleton curves of new joints and shearing deformation in joint core area are studied, the influence of parameters, such as concrete cores, length of stiffener, and relative dimensions of column and beam, is discussed

本文在分析現有節點方案特點的基礎上，提出了角鋼加勁式節點方案，並採用試驗和理論分析相結合的方法，對這種新型節點進行了系統研究，主要研究內容與成果如下： （一）設計了4個新型方鋼管混凝土柱?鋼梁節點的試件，通過對新型節點的低周反復荷載試驗，研究了新型節點的骨架曲線和節點核心區剪切變形等，探討了內填混凝土、加勁肋長度和樑柱相對尺寸等對節點抗震性能影響。