韩林海
个性化签名
- 姓名:韩林海
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学术头衔:
国家“百千万”人才工程国家级人选, 享受国务院特殊津贴专家, 博士生导师, 国家杰出青年科学基金获得者
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学科领域:
生物化学
- 研究兴趣:
苏冬蔚,美国俄亥俄州立大学经济学博士,暨南大学金融学教授、博士生导师、广东省高校“珠江学者”特聘教授,人事部、科技部和教育部等7部委“新世纪百千万人才工程”国家级人选,享受国务院政府特殊津贴。主要研究方向为微观金融理论与实证(含投资学、公司金融、市场微观结构和金融计量学)。 苏教授是最早将我国证券市场和上市公司研究推向国际学术界的学者之一,始终恪守“宁坐板凳十年冷,不写文章半句空”的治学格言,在《经济研究》、《金融研究》、《世界经济》、《经济学季刊》、Journal of Corporate Finance、Economic Development and Cultural Change及China Economic Review等国内外重要的学术期刊上发表论文40多篇,其中在SSCI期刊上发表论文11篇,在《经济研究》上发表论文7篇,研究成果分别被SSCI、SCOPUS和CSSCI期刊论文他引达135、350和2300多次,近年来主持和完成国家自然科学基金、教育部新世纪优秀人才支持计划、霍英东教育基金会第九届高校青年教师基金、教育部人文社科基金和广东省自然科学基金及广东省社科基金等20多项国家级和省部级课题,获2009年全美华人金融协会国际年会最佳论文奖(投资学)、第五届亚太财务管理学国际年会最佳论文奖、第四届中国高校人文社科优秀成果奖、霍英东教育基金会第十届高校青年教师奖和广东省哲学社会科学优秀成果奖等多项国内外科研奖励,曾在著名经济学网站RePEc公布的中国大陆经济学者排名中列第15位。
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主页访问
9191
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0
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成果阅读
1537
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成果数
15
韩林海, Lin-Hai Han a, *, Guo-Huang Yao a, Xiao-Ling Zhao b
Journal of Constructional Steel Research 61(2005)1241-1269,-0001,():
-1年11月30日
The behaviour of self-consolidating concrete (SCC) filled hollow structural steel (HSS) stub columns subjected to an axial load was investigated experimentally. A total of 50 specimens were tested. The main parameters varied in the tests are: (1) sectional types: circular and square; (2) steel yielding strength: from 282 to 404 MPa; and (3) tube diameter or width to wall thickness ratio (D/tor B/t): from 30 to 134. A mechanics model is developed in this paper for concrete-filled HSS stub columns. A unified theory is described whereby a confinement factor (ξ) is introduced to describe the composite action of the steel tube and the filled concrete. The predicted load versus deformation relationship was in good agreement with test results. The theoretical model was used to investigate the influence of important parameters that determine the ultimate strength of the composite columns. The parametric and experimental studies provide information for the development of formulae for the calculation of the ultimate strength and the axial load versus axial strain curves of the composite columns. Comparisons are made with predicted stub column strengths using the existing codes, such as ACI-1999, AISC-LRFD-1999, AIJ-1997, BS5400-1979 and EC4-1994.
Composite columns, Composite action, Confinement factor, Concrete, Design, Hollow sections, Sectional capacity
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217浏览
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1269下载
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【期刊论文】Cyclic performance of concrete-filled steel CHS columns under flexural loading
韩林海, Lin-Hai Han *, You-Fu Yang
Journal of Constructional Steel Research 61(2005)423-452,-0001,():
-1年11月30日
Concrete-filled steel CHS (circular hollow section) columns are currently being increasingly used in the construction of buildings. Limited information is available on the models for the moment (M) versus curvature (φ) response, and the lateral load (P) versus lateral displacement (∆) relationship of these columns subjected to axial load and cyclically increasing flexural loading. Eight concrete-filled steel CHS specimens were tested under constant axial load and cyclically increasing flexural loading. The parameters in the study included the concrete strength (fcu) and the axial load level (n). A mechanics model is developed in this paper for concrete-filled steel CHS columns subjected to constant axial load and cyclically increasing flexural loading. The predicted cyclic responses for the composite columns are in good agreement with test results. Based on the theoretical model, parametric analysis was performed on the behaviours of the moment (M) versus curvature (φ) response, and the lateral load (P) versus lateral displacement (∆) relationship, as well as the ductility coefficient (µ) for the composite columns. Finally, simplified models for the moment (M) versus curvature (φ) response, and the lateral load (P) versus lateral displacement (∆) relationship are suggested. A formula for the calculation of the ductility coefficient (µ) of the composite columns under constant axial load and cyclically increasing flexural loading is developed.
Composite columns, Concrete, Seismic design, Cyclic load, Ductility, Strength, Hollow sections, Hysteretic models, Ductility coefficient
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99浏览
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807下载
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韩林海, Lin-Hai Han a, *, Jing-Si Huo a, Yong-Chang Wang b
Journal of Constructional Steel Research 61(2005)882-901,-0001,():
-1年11月30日
This paper describes a series of new compression and bending tests carried out on concrete filled steel tubes (CFST) after exposure to the ISO-834 standard fire. A theoretical model that has been previously developed is used to predict the post-fire load versus deformation relationships of CFST stub columns and beams. The predicted curves of load versus deformation are in good agreement with the new test results. The previously developed theoretical model had been used to investigate the influence of a number of important parameters on the residual ultimate strength and flexural stiffness of the composite sections and the results of the parametric studies were used to develop formulas for calculating the composite section residual ultimate strength under axial compression or flexural bending and the composite section residual flexural bending stiffness. In these formulas, the ambient temperature compression resistance, bending moment capacity and initial flexural bending stiffness of the composite section should be calculated using an existing design code. In this paper, these formulas are applied to the new test data to assess the suitability of using several different design codes: AIJ-1997, AISC-LRFD-1999, BS5400-1979, DBJ13-51-2003 and EC4-1994.
Composite columns, Beams, Concrete, Post-fire, Residual strength, Hollow sections, Bending moment capacity, Flexural bending stiffness
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167浏览
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1149下载
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韩林海, Lin-Hai Han and Xiao-Kang Lin
JOURNAL OF STRUCTURAL ENGINEERING ASCE/NOVEMBER 2004,-0001,():
-1年11月30日
The strength and seismic behavior of a composite column may be used to assess the potential damage caused by fire and help to establish an approach to calculate the structural fire protection for minimum postfire repair. This paper provides new test data pertaining to the seismic behavior of concrete-filled hollow structural steel (HSS) columns after exposure to fire. The test parameters included the sectional types, the fire duration time and the axial load level snd. Thirteen concrete-filled HSS column specimens, including seven specimens with circular sections and six specimens with square sections were tested under constant axial load and cyclically increasing flexural loading. Comparisons are made with predicted column strengths and flexural stiffness using the existing codes. It was found that concrete-filled HSS columns after exposure to fire exhibit very high levels of energy dissipation and ductility. Generally, the energy dissipation ability of the columns with circular sections was much higher than those of the specimens with square sections. The work in this paper provides a basis for further theoretical study on the seismic behavior of concrete-filled HSS columns after exposure to fire.
Composite columns, Fire resistance, Residual strength, Seismic design, Hollow sections, Cyclic loads, Ductility.,
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70浏览
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437下载
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【期刊论文】Flexural behaviour of concrete-filled steel tubes
韩林海, Lin-Hai Han *
Journal of Constructional Steel Research 60(2004)313-337,-0001,():
-1年11月30日
This paper develops a mechanics model that can predict the behaviour of concrete-filled hollow structural section (HSS) beams. A form of unified theory, where a confinement factor (n) was introduced [Steel Compos. Struct.--Int. J. (2001) 1(1) 51] to describe the composite action between the steel tube and filled concrete, is used in the analysis. A series of concrete-filled square and rectangular tube beam tests were carried out. The main parameters varied in the tests were the depth-to-width ratio (b) from 1 to 2, and tube depth to wall thickness ratio from 20 to 50. The load vs. lateral deflection relationship was established for concrete-filled HSS beams both experimentally and theoretically. The predicted curves of load vs. mid-span deflection are in good agreement with the presented test results. Formulas which should be suitable for incorporation into building codes are developed for calculating the moment capacity of concrete-filled HSS beams. Comparisons are made with predicted beam capacities and flexural stiffness using the existing codes, such as AIJ-1997, BS5400-1979, EC4-1994, and LRFD-AISC-1999.
Concrete-filled steel hollow sections, Beams, Design, Hollow sections, Mechanics model, Flexural strength, Flexural stiffness
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165浏览
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809下载
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韩林海, Lin-Hai Han *, Guo-Huang Yao
Thin-Walled Structures 42(2004)1357-1377,-0001,():
-1年11月30日
In modern building construction, thin-walled hollow structural steel (HSS) sections are often filled with concrete to form a composite column. In recent years, the use of self-consolidating concrete (SCC), or self-compacting concrete, in such kinds of columns has been of interest to many structural engineers. Due to its rheological properties, the disadvantage of vibration can be eliminated while still obtaining good consolidation. Apart from reliability and constructability, advantages such as elimination of noise in processing plants, and the reduction of construction time and labor cost can be achieved. It is expected that SCC will be used in concrete-filled HSS columns in the future because of its good performance. However, the composite members are susceptible to the influence of concrete compaction. The lack of information on the behavior of HSS columns filled with SCC indicates a need for further research in this area. The present study is an attempt to study the possibility of using thin-walled HSS columns filled with SCC. New test data on 38 HSS columns filled with SCC to investigate the influence of concrete compaction methods on the member capacities of the composite columns are reported. The specimen tests allowed for the different conditions likely to arise in the manufacture of concrete: cured, well compacted with a poker vibrator, well compacted by hand, and self-consolidating without any vibration. The main parameters varied in the tests are: (1) column section type, circular and square; (2) tube diameter (or depth) to thickness ratio, from 33 to 67; and (3) load eccentricity ratio (e=r), from 0 to 0.3 mm. Comparisons are made with predicted column strengths using the existing codes such as AISC-LRFD-1999, AIJ-1997, BS5400-1979, EC4-1994, DL5085/T-1999 and GJB4142-2000.
Composite columns, Hollow sections, Concrete, Design, Self-consolidating concrete, Concrete compaction, Composite actions
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75浏览
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429下载
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【期刊论文】Effects of Sustained Load on Concrete-Filled Hollow Structural Steel Columns
韩林海, Lin-Hai Han ; Zhong Tao ; and Wei Liu
JOURNAL OF STRUCTURAL ENGINEERING ASCE/SEPTEMBER 2004,-0001,():
-1年11月30日
The use of concrete-filled hollow structural steel (HSS) columns has become widespread in the past few decades. However, these members are subject to static long-term behaviors under sustained loading, a common phenomenon in concrete structures. Such a problem has not been addressed satisfactorily by design codes. The present study is an attempt to predict the time-dependent behavior of concrete-filled HSS columns by means of a model that is proposed by ACI 209R-92. Tests on the behavior of concrete-filled HSS columns with square sections under long-term sustained loading are performed, in addition to proposing further tests on the static ultimate strength of the composite columns. A theoretical model of analysis to account for shrinkage and creep effects on concrete-filled HSS columns under sustained loading is presented. A comparison of results calculated using this model shows good agreement with test results. Finally, formulas for the calculation of the ultimate strength of the concrete-filled HSS columns subjected to long-term sustained loads are presented.
Beam columns, Composite columns, Steel, Concrete, Creep, Shrinkage, Bearing capacity, Design.,
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56浏览
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396下载
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【期刊论文】Concrete-filled double skin (SHS outer and CHS inner) steel tubular beam-columns
韩林海, Lin-Hai Han a, *, Zhong Tao a, Hong Huang a, Xiao-Ling Zhao b
Thin-Walled Structures 42(2004)1329-1355,-0001,():
-1年11月30日
A series of tests on concrete-filled double skin steel tubular (CFDST) stub columns (14), beams (four) and beam-columns (12) were carried out. The specimens had square hollow section (SHS) as outer skin and circular hollow section (CHS) as inner skin. A mechanics model is developed in this paper for the CFDST stub columns, columns and beam-columns. A unified theory is described where a confinement factor (n) is introduced to describe the composite action between the steel tubes and the sandwiched concrete. The load versus axial strain relationship for CFDST stub columns is predicted. Simplified model is derived for section capacities of CFDST. The predicted beam-column strength is compared with that obtained in beam and beam-column tests. The load versus mid-span deflection relationship for CFDST beams and beam-columns is predicted. A simplified model is developed for calculating the member capacity of the CFDST beams. Simplified interaction curves are derived for CFDST beam-columns.
Concrete-filled, Beams, Columns, Beam-columns, Design, Hollow sections, Double-skin, Mechanics model
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67浏览
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904下载
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【期刊论文】Behavior and calculation on concrete-filled steel CHS (Circular Hollow Section) beam-columns
韩林海, Lin-Hai Han † and Guo-Huang Yao ‡, Xiao-Ling Zhao †
Steel and Composite Structures, Vol. 4, No. 3(2004)169-188,-0001,():
-1年11月30日
A mechanics model is developed in this paper for concrete-filled steel CHS (circular hollow section) beam-columns. A unified theory is described where a confinement factor (ξ) is introduced to describe the composite action between the steel tube and the filled concrete. The predicted load versus deformation relationship is in good agreement with test results. The theoretical model was used to investigate the influence of important parameters that determine the ultimate strength of concrete-filled steel CHS beam-columns. The parametric and experimental studies provide information for the development of formulas for the calculation of the ultimate strength of the composite beam-columns. Comparisons are made with predicted beam-columns strengths using the existing codes, such as LRFD-AISC-1999, AIJ-1997, BS5400-1979 and EC4-1994.
composite columns, beam-columns, composite actions, constraining factor, concrete, design, hollow sections, columns, member capacity.,
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121浏览
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967下载
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【期刊论文】Experimental Study and Calculation of Fire Resistance of Concrete-Filled Hollow Steel Columns
韩林海, Lin-Hai Han ; Xiao-Ling Zhao, M.ASCE ; You-Fu Yang ; and Jiu-Bin Feng
JOURNAL OF STRUCTURAL ENGINEERING ASCE/MARCH 2003,-0001,():
-1年11月30日
Hollow structural steel (HSS) columns filled with concrete offer a number of benefits and are often used in tall buildings and other industrial structures. A mathematical model was developed and used to investigate the influence of important parameters that determine the fire resistance of concrete-filled hollow steel columns. The behavior of concrete-filled HSS columns with or without fire protection subjected to axial or eccentric loads was experimentally investigated and the results presented in this paper. The parametric and experimental studies provide information for the development of formulas for the calculation of the fire resistance and fire protection thickness of the composite columns. The main objectives of this work were threefold: First, to report a series of fire tests on composite columns; second, to analyze the influence of several parameters, such as the sectional dimension, load eccentricity ratio, and fire protection thickness on the fire resistance of the composite columns. It was found, in general, that the sectional dimension and the fire protection thickness have significant influence on the fire resistance of concrete-filled HSS columns; however, the load eccentricity ratio has moderate influence on the fire resistance. The final objective was to develop formulas for the calculation of the fire resistance and the fire protection thickness of the concrete-filled HSS columns.
Steel columns, Fire resistance, Concrete, Beam columns, Hollow sections.,
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104浏览
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559下载
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