دانلود رایگان مقاله لاتین تحلیل اجزای ستون cfst از سایت الزویر
عنوان فارسی مقاله:
تحلیل اجزای محدود در عملکرد مکانیکی ستون وسط بلند CFST با مشخصات CFRP تحت بارهای محوری در حال بارگذاری
عنوان انگلیسی مقاله:
Finite Element Analysis on Mechanical Performance of Middle Long CFST Column with Inner I-Shaped CFRP Profile under Axial Loading
سال انتشار : 2017
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مقدمه انگلیسی مقاله:
1. Introduction
The concrete-filled steel tube structure (CFT) has the performance of high bearing capacity, convenient construction, good shape and excellent characteristics of fire resistance. The section size of CFT column applied in high-rise buildings was large, the diameter thickness ratio of the tube wall and the confinement coefficient was small. Zhong pointed out that put the materials such as longitudinal and transverse reinforcement steel bar into CFT column could improve the ductility of the structure [1]. The fiber reinforced polymer (FRP) is a kind of excellent-performance material with high strength, anisotropy, corrosion resistance, light weight, low thermal expansion coefficient, good durability and fatigue resistance which is more and more widely used in engineering. Wang and Tao reported the test result of six DSTC models under bending load, which indicated FRP could increase the bearing capacity and stiffness [2]. Wang studied the bearing capacity of DSTC short column under axial compression, and put forward calculation formula [3]. Wang et al. conducted the test of 10 DSTC square columns under axial loading, considering the parameters of hollow rate, cross section of the configuration and CFRP thickness [4]. Nanni reported the test results of AFRP confined concrete under axial compressive and bending load [5]. Mirmiran and Shahawy studied the GFRP confined concrete models subjected to axial loading, and the result showed that CFRP can effectively restrain the core concrete [6]. Ozbakkaloglu and Akin conducted 24 concrete columns con- fined by AFRP and CFRP under monotonic and cyclic loading, the results showed that concrete strength and thickness of fiber layer had effect on the model stress-strain curve [7]. Vincent and Ozbakkaloglu conducted the test of 55 high strength and ultra high strength concrete short columns restrained by CFRP, which showed that models had good ductility [8]. Based on the background above, the authors put forward a new kind of concrete-filled square steel tube (CFST) column with I-shaped CFRP profile inside to improve the mechanical property of CFST column. The CFRP is used to bear the vertical load rather than confine the concrete. The I-shaped CFRP profile is putting inside CFST column to increase the bearing capacity and ductility can be, and the weight of the structure will be reduced. Li et al. studied the behavior of CFST short column with I-shaped CFRP profile inside under axial loading [9]. In this paper, model was established by ABAQUS to study the mechanical performance of axial compressed middle long CFST column with I-shaped CFRP profile inside.
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کلمات کلیدی:
Recent Structures Articles - Elsevier https://www.journals.elsevier.com/structures/recent-articles Seismic Performance Evaluation of Asymmetric Reinforced Concrete Tunnel Form ... Finite Element Analysis on Mechanical Performance of Middle Long CFST ... [PDF]Download PDF article - Institution of Structural Engineers https://www.istructe.org/getattachment/4e158ae4-90b5.../Spotlight-on-structures.pdf EExperimental study on seismic performance of new RCS connection. EFinite Element Analysis on Mechanical. Performance of Middle Long CFST Column. Effects of Core Concrete Initial Imperfection on Performance of ... ascelibrary.org/doi/full/10.1061/(ASCE)ST.1943-541X.0001604?src=recsys The results demonstrated the favorable mechanical performance of CFST members. ... For all specimens, the length (L), outer diameter (D), and wall thickness (t) of .... that had been accurately machined at the position 27 mm off the middle line ... Effects of Core Concrete Initial Imperfection on Performance of ... ascelibrary.org/doi/pdf/10.1061/%28ASCE%29ST.1943-541X.0001604 Jul 15, 2016 - 2015). The results demonstrated the favorable mechanical performance of CFST .... For all specimens, the length (L), outer diam- eter (D), and wall .... at the position 27 mm off the middle line of the steel plate. For the. CFST ... Finite Element Analysis on Concrete-Filled Square Steel Tube Short ... https://www.scientific.net/AMM.578-579.335 by GC Li - 2014 - Cited by 1 - Related articles ... Experimental Study on Anchorage Performance of Chemical Adhesive Steel Bar in Concrete ... Filled High-Strength Square Steel Tube Middle-Long Columns under Axial ... The new composite structure concrete-filled square steel tube (CFST) ... the mechanical behavior of CFST short columns with internal CFRP profiles ... [PDF]ASCCS_2015_Program_1201 - asccs 2015 www.asccs2015.net/wp-content/uploads/2015/02/ASCCS_2015_Program_1201.pdf Dec 2, 2015 - Tests of three-legged CFST latticed columns under ... mechanical performance of middle long concrete-filled square steel tube column with ...