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On braced trapezoidal corrugated steel shear panels: An experimental and numerical study
《结构与土木工程前沿(英文)》 2023年 第17卷 第3期 页码 396-410 doi: 10.1007/s11709-023-0934-5
关键词: trapezoidal corrugated plate steel shear panel braced steel shear panel experimental study buckling resistance.
Causations of failure in megaprojects: A case study of the Ajaokuta Steel Plant project
Oluwole Alfred OLATUNJI
《工程管理前沿(英文)》 2018年 第5卷 第3期 页码 334-346 doi: 10.15302/J-FEM-2018011
This paper uses project organizational theories to draw lessons from a historic megaproject, the Ajaokuta Steel Plant (ASP). Archival reports on the ASP were explored to identify the unique attributes of the project; the political wrangling that underplayed its evolution, its economic significance and organizational impacts. Findings suggest the goals of the ASP project were, and still are, unambiguous. Failure occurred as socio-political forces aggravated the project’s complex milestones. Stakeholders were impatient with pre-project investigations. During planning, owners ignored opinions that were contrary to their expectations. While delays lingered, pressures from the global economy weakened the project’s motivation to succeed. These combined to turn the project’s outcomes into a chaotic situation that triggered dire implications. Despite about 1400% overrun in cost, the success achieved on the plant was 28% at commissioning. Contractors remained on site until eight years after commissioning. Six key elements of the 482 items in the ASP project contract were not delivered nearly 40 years on. A simplistic look at these suggests poor planning is the main problem. However, planning issues is not entirely strange in greenfield projects. The paper draws strength from project organization theories to explain what was poor about the planning. Socrates’ generic management theory was used to explain the role of leadership in the failure of the ASP project. McGregor’s Theory X and Theory Y explain the significance of stakeholders’ integration in megaprojects. Systems and chaos theories were used to explain the sensitivity of the ASP project to uncertainties. Narratives on these combine well to inspire stakeholders of megaprojects on where and how to seek courage in making effective plans that can help achieve success in complex projects. While normative literature only recognizes project success in a definitive perspective, this study provides insights from failure as an instrument to trigger sublime reflections.
关键词: industrial projects megaprojects Nigeria project organizational theories steel plant
Parametric study of hexagonal castellated beams in post-tensioned self-centering steel connections
Hassan ABEDI SARVESTANI
《结构与土木工程前沿(英文)》 2019年 第13卷 第5期 页码 1020-1035 doi: 10.1007/s11709-019-0534-6
关键词: finite element analysis hexagonal castellated beam parametric study post-tensioned self-centering steel connection steel moment-resisting frame
陆钟武,岳强,高成康
《中国工程科学》 2013年 第15卷 第4期 页码 23-29
单位生产总值钢产量指标对于调控钢产量,开展钢铁行业的节能、降耗和减排工作具有重要意义。首先给出了单位生产总值钢产量定义式,引入了“在役钢量”概念及其计算式;然后对单位GDP钢产量的定义式进行了两次变换,导出具有分析功能的新定义式;并以新定义式和钢产量计算式、钢铁行业能耗、物耗和排放计算式为依据,对钢产量及钢铁行业的能耗、物耗和排放进行了分析;最后,进行了与钢铁行业相关各参数的分类,并提出全面推进钢铁行业节能、降耗、减排工作的总体看法。
Concepts and implementation of strain-based criteria in design codes for steel structures
Reidar BJORHOVDE
《结构与土木工程前沿(英文)》 2012年 第6卷 第3期 页码 210-216 doi: 10.1007/s11709-012-0165-7
关键词: steel stress-strain characteristics tension test strain design actual behavior improved design codes
Torsional behavior of triangular web profile (TRIWP) steel section by experimental study
Fatimah DE’NAN,Hazwani HASAN,Mohd Hanim OSMAN,Sariffudin SAAD
《结构与土木工程前沿(英文)》 2016年 第10卷 第4期 页码 409-419 doi: 10.1007/s11709-016-0358-6
关键词: corrugated web i-beam non uniform steel section torsion resistance torsion angle triangular web profile steel section
Thermal response of steel framing members in open car park fires
Xia YAN; Marion CHARLIER; Thomas GERNAY
《结构与土木工程前沿(英文)》 2022年 第16卷 第9期 页码 1071-1088 doi: 10.1007/s11709-022-0879-0
关键词: open car park localized fire steel frame numerical modeling computational fluid dynamics
殷瑞钰
《中国工程科学》 2001年 第3卷 第6期 页码 24-32
基于对钢铁工业发展历史的回顾和对中国钢铁企业结构调整的现状分析, 阐述了钢铁制造流程的解析与集成以及技术进步的方向,探讨了不同类型钢材的生产工艺,分析和展望了未来钢厂结构的发展模式以及投资决策问题。指出钢铁工业的时代命题是:市场竞争力和可持续发展;21世纪钢铁生产流程的功能将朝着冶金功能——低能耗、低物耗、高效率地生产新一代钢铁产品,并降低单位产品的投资额; 能源转换功能——形成工业生态链甚至转换出新能源;社会废弃物处理功能——实现环境友好。钢厂将逐渐向都市周边型钢厂或生态工业钢厂的模式发展。
Layout optimization of steel reinforcement in concrete structure using a truss-continuum model
《结构与土木工程前沿(英文)》 2023年 第17卷 第5期 页码 669-685 doi: 10.1007/s11709-023-0963-0
关键词: bi-directional evolutionary structural optimization steel-reinforced concrete concrete stress reinforcement method hybrid model
《机械工程前沿(英文)》 2021年 第16卷 第3期 页码 580-592 doi: 10.1007/s11465-021-0633-7
关键词: electropolishing laser powder bed fusion 316L stainless steel corrosion resistance microstructure
Innovative steel-UHPC composite bridge girders for long-span bridges
Xudong SHAO, Lu DENG, Junhui CAO
《结构与土木工程前沿(英文)》 2019年 第13卷 第4期 页码 981-989 doi: 10.1007/s11709-019-0531-9
关键词: steel-UHPC composite bridge girder long-span bridge orthotropic steel deck fatigue cracking durability
On corrosion to stainless steel by calcium chloride with different extender
Lv XU, Yuanyang HU, Liwei WANG, Ruzhu WANG,
《能源前沿(英文)》 2010年 第4卷 第2期 页码 181-184 doi: 10.1007/s11708-009-0065-2
关键词: stainless steel corrosion calcium chloride expanded graphite activated carbon oxidation creation pitting corrosion
Fatigue evaluation of steel-concrete composite deck in steel truss bridge——A case study
Huating CHEN; Xianwei ZHAN; Xiufu ZHU; Wenxue ZHANG
《结构与土木工程前沿(英文)》 2022年 第16卷 第10期 页码 1336-1350 doi: 10.1007/s11709-022-0852-y
关键词: Fatigue assessment composite bridge deck rail-cum-road bridge fatigue stress analysis Model Code
标题 作者 时间 类型 操作
Causations of failure in megaprojects: A case study of the Ajaokuta Steel Plant project
Oluwole Alfred OLATUNJI
期刊论文
Parametric study of hexagonal castellated beams in post-tensioned self-centering steel connections
Hassan ABEDI SARVESTANI
期刊论文
Concepts and implementation of strain-based criteria in design codes for steel structures
Reidar BJORHOVDE
期刊论文
Torsional behavior of triangular web profile (TRIWP) steel section by experimental study
Fatimah DE’NAN,Hazwani HASAN,Mohd Hanim OSMAN,Sariffudin SAAD
期刊论文
Thermal response of steel framing members in open car park fires
Xia YAN; Marion CHARLIER; Thomas GERNAY
期刊论文
Orientation effect of electropolishing characteristics of 316L stainless steel fabricated by laser powder
期刊论文
Innovative steel-UHPC composite bridge girders for long-span bridges
Xudong SHAO, Lu DENG, Junhui CAO
期刊论文
On corrosion to stainless steel by calcium chloride with different extender
Lv XU, Yuanyang HU, Liwei WANG, Ruzhu WANG,
期刊论文