外文翻译--钢板包裹的钢筋混凝土柱受冲力影响下的性能

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1、中文 7700字 ,5400单词， 2.5 万英文字符 出处： Griffith M C, Wu Y F, Oehlers D J. Behaviour of Steel Plated RC Columns Subject to Lateral LoadingJ. Advances in Structural Engineering, 2005, 8(4):333-348. 原文 Behaviour of Steel Plated RC Columns Subject to Lateral Loading Griffith M C, Wu Y F, Oehlers D J. Abstract:

2、 The main focus of this paper is to describe the behaviour of RC columns that are retrofitted with an alternative technique to “jacketing” or wrapping. This new technique consists of attaching steel plates to the tlexural faces of a concrete column using bolts. It is envisaged that this technique wo

3、uld be suitable primarily for columns having rectangular cross-sections and in situations where lateral loading induces predominately a single plane of bending (as opposed to biaxial bending). Effectiveness of this new technique has been demonstrated by experimental testing and numerical simulations

4、. This paper studies the mechanism of the new retrofit scheme, how it works, and the behaviour of columns retrofitted using such a scheme, as well as the important parameters that affect the response of the retrofitted columns. This study forms the basis for the design of the plate retrofitting syst

5、em. Keywords: reinforced concrete, columns, numerical model, retrofitting, partial interaction, slip. 1. INTRODUCTION Theoretical and experimental studies have demonstrated that external jacketing can be highly effective in preventing existing columns from premature shear, lapspltce or flexural fail

6、ure in the case of circular columns. Therefore, this kind of retrofitting work has already been widely used in engineering (Chai et al. 1991, 1994; Priestley et al. 1994a,b).However,it is not quite as clear-cut for rectangular RC columns where the success of the retrofit procedure depends on the degree to which jacketing increases confinement. For example, Park (2001) states “A rectangular thin steel jacket would not be so effective, due to the sides bowing out when dilation of the con