地方本科院校实践教学质量评价存在的问题与对策研究
作者:
陈强;李苗;王新忠;刘灵勇
期刊:
创新创业理论研究与实践 ,2020年3(03):42-43 ISSN:2096-5206
作者机构:
湖南城市学院土木工程学院,湖南益阳 413000;[王新忠; 刘灵勇; 陈强; 李苗] 湖南城市学院
关键词:
地方院校;实践教学;质量评价;对策
摘要:
实践教学是本科教育重要组成,地方本科院校主要是培养学生的动手能力,实践教学环节主要是培养和训练学生进行该专业工程设计或科学研究的综合素质实践课程,由于实践教学考核与评价缺乏科学体系,导致实践教学质量无法保证,为了提高地方院校实践教学质量,采取了科学有效实践教学评价与管理等一系列措施提高地方本科实践教学质量。
语种:
中文
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一般本科院校土木工程专业毕业设计存在主要问题与对策
作者:
陈强;刘灵勇;王新忠
期刊:
教育现代化 ,2020年7(02):37-39 ISSN:2095-8420
作者机构:
湖南城市学院土木工程学院,湖南 益阳;[陈强] 陈强;[王新忠] 王新忠;[刘灵勇] 刘灵勇
关键词:
本科院校;毕业设计;问题;对策
摘要:
毕业设计是本科教育最后一个综合型实践环境,主要是培养和训练学生进行本专业工程设计或科学研究的综合素质实践课程,由于高校扩招、学生厌学、教师水平以及管理不到位等原因造成毕业设计质量有下降趋势,为了提高一般院校毕业设计质量,采取了加强毕业设计管理等一系列措施提高一般本科实践教学质量,本文以土木工程交通土建方向为例介绍目前存在问题以及改进措施,全面提高毕业设计质量。
语种:
中文
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基于OBE理念的《桥梁工程》课程教学改革探讨
作者:
周雁群;王新忠;黄国平
期刊:
科技视界 ,2019年(29):47-48 ISSN:2095-2457
作者机构:
湖南城市学院土木工程学院,湖南 益阳,413000;[黄国平; 王新忠; 周雁群] 湖南城市学院
关键词:
OBE理念;桥梁工程;教学改革
摘要:
基于OBE理念,针对《土木工程专业培养目标与毕业要求》,改革应用型本科教育《桥梁工程》课程的教学方法和教学手段。通过构建课堂教学新模式、完善实践教学环节和改变传统课程考核方式等,提高了学生的专业素质、学习自主性和兴趣,提升了学生的创新能力和团队合作精神。
语种:
中文
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The Effects of Fiber Length and Volume on Material Properties and Crack Resistance of Basalt Fiber Reinforced Concrete (BFRC)
作者:
Wang, Xinzhong;He, Jun* ;Mosallam, Ayman S.;Li, Chuanxi;Xin, Haohui*
期刊:
Advances in Materials Science and Engineering ,2019年2019:1-17 ISSN:1687-8434
通讯作者:
He, Jun;Xin, Haohui
作者机构:
[Wang, Xinzhong] Hunan City Univ, Sch Civil Engn, Yiyang, Peoples R China.;[He, Jun; Li, Chuanxi] Changsha Univ Sci & Technol, Sch Civil Engn, Changsha, Hunan, Peoples R China.;[He, Jun] Heriot Watt Univ, Inst Infrastruct & Environm, Edinburgh, Midlothian, Scotland.;[Mosallam, Ayman S.] Univ Calif Irvine, Dept Civil & Environm Engn, Irvine, CA USA.;[Xin, Haohui] Delft Univ & Technol, Civil Engn & Geosci, Delft, Netherlands.
通讯机构:
[He, Jun] C;[He, Jun] H;[Xin, Haohui] D;Changsha Univ Sci & Technol, Sch Civil Engn, Changsha, Hunan, Peoples R China.;Heriot Watt Univ, Inst Infrastruct & Environm, Edinburgh, Midlothian, Scotland.
摘要:
Basalt fiber reinforced concrete (BFRC) has been widely utilized in various constructions such as buildings, large industrial floors, and highways, due to its excellent physical and mechanical properties, as well as low production cost. In order to address the influence of basic parameters such as fiber volume fraction (0.05∼0.40%), fiber length (12∼36 mm) of BF, and compressive strength (30, 40, and 50 MPa) of concrete on both physical and mechanical properties of BFRC including compressive strength, tensile and flexural strength, workability, and anti-dry-shrinkage cracking properties, a series of standard material tests were conducted. Experimental results indicated that clumping of fibers may occur at relatively higher fiber volume fraction resulting in mixing and casting problems. Based on experimental values of mechanical properties and anti-dry-shrinkage cracking resistance of BFRC, the reasonable basalt fiber length and fiber volume fractions are identified. The addition of a small amount of short basalt fibers can result in a considerable increase in both compressive strength and modulus of rupture (MoR) of BFRC and that the proposed fiber length and content are 12.0 mm and 0.10%∼0.15%, respectively. As the length of basalt fibers increases, the development of early shrinkage cracks decreases initially and then increases slowly and the optimal fiber length is 18.0 mm. Results of the study also indicated that early shrinkage cracks decrease with the increase of fiber volume fraction, and when the volume fraction of 0.20% is used, no cracks were observed. All the findings of the present study may provide reference for the material proportion design of BFRC. © 2019 Xinzhong Wang et al.
语种:
英文
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玄武岩纤维混凝土抗折强度与劈裂强度试验研究
作者:
周维;王新忠;黄国平;谢合良;凌锦育
期刊:
市政技术 ,2018年36(5):211-213 ISSN:1009-7767
作者机构:
湖南城市学院土木工程学院,湖南益阳,413000;[黄国平; 王新忠; 谢合良; 凌锦育; 周维] 湖南城市学院
关键词:
玄武岩纤维;抗折强度;劈裂强度;最佳掺量
摘要:
为了研究玄武岩纤维对混凝土抗折强度与劈裂强度的影响,分别对玄武岩纤维混凝土及素混凝土进行了系统的抗折强度试验和劈裂强度试验。试验结果表明:随玄武岩纤维体积掺量的增加,玄武岩纤维混凝土抗折强度先增加后减小,玄武岩纤维混凝土抗折强度的纤维最佳体积掺量为0.1%;玄武岩纤维混凝土劈裂强度先增加后减小,玄武岩纤维混凝土劈裂强度的纤维最佳体积掺量为0.15%。随掺入玄武岩纤维长度的增加,玄武岩纤维混凝土抗折强度先增加后略有降低,玄武岩纤维混凝土抗折强度的纤维最佳长度为24 mm;玄武岩纤维混凝土劈裂强度先增加后减小,玄武岩纤维混凝土劈裂强度的纤维最佳长度为30 mm。
语种:
中文
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钢管玄武岩纤维混凝土短柱轴心受压承载能力试验研究
作者:
王新忠;李传习;谢和良;凌锦育;黎永索
期刊:
硅酸盐通报 ,2018年37(1):284-289 ISSN:1001-1625
作者机构:
湖南城市学院土木工程学院, 益阳, 413000;长沙理工大学土木工程学院, 长沙, 410114;[王新忠] 湖南城市学院土木工程学院, 益阳, 413000 长沙理工大学土木工程学院, 长沙, 410114;[李传习] 长沙理工大学土木工程学院, 长沙, 410114;[谢和良; 凌锦育; 黎永索] 湖南城市学院土木工程学院, 益阳, 413000
关键词:
钢管玄武岩纤维混凝土短柱;轴心受压;极限承载力
摘要:
钢管混凝土短柱是工程中的常用构件,其核心混凝土的性能对钢管混凝土承载能力有较大影响,为了研究玄武岩纤维混凝土对钢管混凝土受力性能的影响,采用钢管混凝土和钢管玄武岩混凝土短柱轴心受压对比试验,结果发现,在相同条件下,钢管玄武岩纤维混凝土短柱轴心受压承载能力均大于普通钢管混凝土短柱,最大提高率10.1%,承载能力提高率随着钢管混凝土含钢率的提高而降低;相对于钢管混凝土短柱,钢管玄武岩纤维混凝土短柱的弹性阶段较长,延性增加。延性系数随含钢率提高而提高,纤维长度改变对钢管玄武岩纤维混凝土短柱承载力影响较小。
语种:
中文
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基于单自由度共振反应的模态质量计算方法
作者:
黄国平;侯苏伟;王新忠
期刊:
湖南城市学院学报(自然科学版) ,2017年26(5):7-11 ISSN:1672-7304
作者机构:
湖南城市学院 土木工程学院,湖南 益阳,413000;北京建筑大学 土木与交通工程学院,北京,102616;[黄国平; 王新忠] 湖南城市学院;[侯苏伟] 北京建筑大学
关键词:
单自由度;共振响应;模态质量;有限元软件
摘要:
基于单自由度在简谐荷载下的共振响应结果反算单质点质量的思想,提出一种计算多自由度结构体系模态质量的方法,并利用MIDAS有限元软件求得模型模态质量,解决若干有限元软件不能直接提取模态质量的问题.模态质量原始公式计算结果与仿真实验结果的对比分析表明,该方法计算数值误差均小于5%,计算结果可以满足计算精度要求.
语种:
中文
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Experimental study on the axial compression of short basalt fiber reinforced concrete columns with spiral stirrups
作者:
Wang Xinzhong;Li Chuanxi;Zhou Wei;Xie Heliang
期刊:
Journal of Engineering Science and Technology Review ,2017年10(1):55-60 ISSN:1791-9320
通讯作者:
Xinzhong, Wang(wxz0419314@163.com)
作者机构:
[Chuanxi L.] School of Civil Engineering and Architecture, Changsha University of Science and Technology, Changsha, 410114, China;[Wei Z.; Heliang X.] School of civil engineering, Hunan City University, Yiyang, 413000, China;[Xinzhong W.] School of Civil Engineering and Architecture, Changsha University of Science and Technology, Changsha, 410114, China<&wdkj&>School of civil engineering, Hunan City University, Yiyang, 413000, China
通讯机构:
School of Civil Engineering and Architecture, Changsha University of Science and Technology, Changsha, China
关键词:
Axial compression;Basalt;Bearing capacity;Corrosion;Cracks;Deformation;Fiber reinforced materials;Fibers;Axial compression experiments;Basalt fiber;Basalt fiber reinforced concretes;Compressive mechanical properties;Reinforced concrete column;Short column;Spiral stirrup;Ultimate bearing capacity;Reinforced concrete
摘要:
Short reinforced concrete (RC) column with spiral stirrups is an important component of civil engineering. However, the usability and durability of short RC columns are affected significantly by concrete cracking, poor adaptive deformability, low toughness and acid-base corrosion. Improving the stress performance of short RC columns is favour of normal application. Adding basalt fiber into concrete is an important method to improve the stress performance of short RC columns. Effects of basalt fiber on the axial compressive mechanical properties of short RC columns with spiral stirrups were explored in this study. The optimal fiber length and content were determined by a cube test of basalt fiber concrete. An axial compression experiment was conducted by preparing six pieces of short basalt fiber reinforced concrete (BFRC) columns with spiral stirrups and six pieces of short RC columns with spiral stirrups. Results showed that the ultimate bearing capacities of all short BFRC columns with spiral stirrups were larger (28.5% up to the most) than those of the short RC columns with spiral stirrups. The short BFRC columns with spiral stirrups developed cracks and fall of their protective layers later than the short RC columns with spiral stirrups. Basalt fiber can improve the ultimate strain of concrete and significantly improve the adaptive deformability of short RC columns. Research results prove that basalt fiber can improve the bearing capacity and usability of the short RC column with spiral stirrups. Conclusions are valuable for the extensive application of basalt fiber to the civil engineering. © 2017 Eastern Macedonia and Thrace Institute of Technology.
语种:
英文
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有限元分析软件MIDAS在桥梁工程课程设计教学中的应用
作者:
羊日华;王新忠;黄国平
期刊:
教育教学论坛 ,2016年(51):193-194 ISSN:1674-9324
作者机构:
湖南城市学院 土木工程学院,湖南 益阳,413000;[黄国平; 王新忠; 羊日华] 湖南城市学院
关键词:
土木工程;桥梁工程;课程设计
摘要:
桥梁工程课程设计是土木工程交通土建专业实践性教学计划中的一个重要环节,对掌握知识和培养能力具有非常积极的作用。针对现在的工程实际设计的方向与手段,结合桥梁工程课程设计的教学实践,将MIDAS系列大型有限元结构设计软件引入课程设计教学环节,与传统的手算方式相结合,强调了课程设计的合理性、实践性。其对于培养学生的综合素质和能力具有良好的效果,能够培养出更加适应市场需要的土木工程专业人才。
语种:
中文
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Experimental study on the ultimate bearing capacity of long basalt fiber-reinforced concrete (BFRC)-filled steel tube columns under axial compression
作者:
Xinzhong, Wang;Chuanxi, Li;Wei, Zhou
期刊:
Journal of Engineering Science and Technology Review ,2016年9(5):158-163 ISSN:1791-9320
通讯作者:
Xinzhong, Wang(wxz0419314@163.com)
作者机构:
[Xinzhong, Wang; Chuanxi, Li] School of Civil Engineering and Architecture, Changsha University of Science and Technology, Changsha;410114, China;[Wei, Zhou] School of civil engineering, Hunan City University, Yiyang;413000, China;[Xinzhong, Wang] 410114, China <&wdkj&> School of civil engineering, Hunan City University, Yiyang
通讯机构:
School of Civil Engineering and Architecture, Changsha University of Science and Technology, Changsha, China
关键词:
Axial compression;Basalt;Bearing capacity;Concrete mixing;Ductility;Fiber reinforced materials;Steel fibers;Tubes (components);Tubular steel structures;Basalt fiber;Basalt fiber reinforced concretes;Bearing capacity experiments;Concrete-filled steel tubes;Experimental characteristics;Load-displacement curve;Strength and ductilities;Ultimate bearing capacity;Reinforced concrete
摘要:
The strength and ductility of core concrete are important factors influencing the bearing capacity of concrete-filled steel tube (CFST) structures, and an appropriate mixing amount of basalt fiber can change the toughness index of concrete. To examine the reinforcing effect of basalt fiber on the bearing capacity of long CFST columns, axial compression bearing capacity experiments were conducted on 15 long basalt fiber-reinforced concrete (BFRC)-filled steel tube columns and 9 long CFST columns to determine the ultimate bearing capacity, load-displacement curve, and load-strain curve of the experimental columns. A comparative analysis was then performed on the experimental results and experimental characteristics of the bearing capacity to differentiate long fiber CFST columns from long CFST columns. Results revealed that compared with CFST columns, BFRC-filled steel tube columns displayed improved ultimate bearing capacities under experimental level. Specifically, for core concrete added with 12 mm basalt fiber, the ultimate bearing capacities of BFRC-filled steel tube columns with wall thicknesses of 4, 5, and 6 mm were improved by 9.7%, 8.6%, and 7.3%, respectively. For core concrete filled with 24 mm basalt fiber, the ultimate bearing capacities of long BFRC-filled steel tube columns with wall thicknesses of 4, 5, and 6 mm were improved by 7.8%, 5.7%, and 3.1%, respectively. Thus, basalt fiber improves the ductility of CFST columns. The findings of this paper is of important engineering indicate the promising application value of basalt fiber in long CFST columns. © 2016 Eastern Macedonia and Thrace Institute of Technology.
语种:
英文
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桥梁工程专业课程设计改革探索
作者:
王新忠;郭太平;文国华
期刊:
中国电力教育 ,2009年(16):112-114 ISSN:1007-0079
作者机构:
湖南城市学院土木工程学院,湖南益阳,413000;湖南城市学院人事处,湖南益阳,413000;[王新忠; 郭太平] 湖南城市学院
关键词:
应用型本科;桥梁工程;课程设计;改革
摘要:
桥梁工程专业是一个实践性很强的专业,桥梁工程课程设计是实践教学的重要环节,对培养学生的综合素质、创新意识和就业能力有着重要作用.根据桥梁工程专业课程设计的问题提出了改革措施,取得了较好效果.
语种:
中文
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依托学科建设 培养具有创新精神的土木工程专业应用型人才
作者:
曹国辉;王新忠;陈伯望;文明才;祝新
期刊:
中国建设教育 ,2008年(11):10-13 ISSN:1814-9723
作者机构:
湖南城市学院土木工程学院
关键词:
学科建设;土木工程;创新精神;应用型人才
摘要:
本文提出了传授式教学和探究式教学相结合、教学与科研相结合、教学与社会实践相结合的教学模式。体现了"基础知识、创新能力、综合素质"协调发展,突出了创新能力培养的系统性、全程性和层次性。构建适合本科层次土木工程专业学生参与的科技创新、工程实践的人才培养方案。建立开放的、多元的成绩考核体系,构建环境"软要求"、评价"硬约束"的创新人才评价体系。
语种:
中文
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