دانلود رایگان ترجمه مقاله تجزیه و تحلیل المان محدود قطر متغیر ستون منفرد تحت شرایط دریایی – ASCE 2009

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دانلود رایگان مقاله انگلیسی آنالیز اجزا محدود شمع منفرد با قطر متغیر تحت شرایط دریایی به همراه ترجمه فارسی

 

عنوان فارسی مقاله: آنالیز اجزا محدود شمع منفرد با قطر متغیر تحت شرایط دریایی
عنوان انگلیسی مقاله: Finite Element Analysis of Variable-diameter Single Pile under the Condition of Marine
رشته های مرتبط: مهندسی عمران، سازه، مهندسی هیدرولیک و سازه های دریایی
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نشریه ASCE
کد محصول F507

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ABSTRACT

In this research, the mechanical characteristics of variable-diameter single pile under the combination of wind, wave and tidal current actions are studied. Take a variablediameter single pile of CB11F platform as an example, finite element analysis is analyzed using ANSYS program. The parameters which affect the single pile response are analyzed, such as environmental loads, soil condition and position of variable-diameter. And the model of variable diameter section is simplified, from which the pile displacement and body stress under the action of wave and current are derived. Comparing the results with that of the equal-diameter pile model, the displacement and stress of variable-diameter pile model reduce more than 20%.So that, the effectiveness of the variable-diameter measure is verified in improving the mechanical properties of the pile.

KEY WORDS ocean engineering, variable-diameter,single pile, horizontal bearing capacity

INTRODUCTION

In the rolling developmental model of Chengdao Oilfield, independent piles are used (Wang, 2003). Both in structure and economy, it is more suitable for the marine. However, with the depth increasing, the loads increase gradually. The top of the platform will have a significant shaking. In order to solve this problem, the company has developed a new type of piles called variable-diameter single pile. The adjustable location of the pile is generally 1m below the surface of sea, which can effectively reduce the load area of the waves, the currents and the ice. As a result,the horizontal load is reduced. In this paper the pile-soil model is appropriately simplified. The dynamic calculation of single piles is done with the PIPE59 unit in ANSYS program (Li, 2003). The variable-diameter single pile is more effective than the normal pile,which can be known by comparing the results.

 

 

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