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General framework for bridge life cycle design

Junhai MA, Airong CHEN, Jun HE

《结构与土木工程前沿(英文)》 2009年 第3卷 第1期   页码 50-56 doi: 10.1007/s11709-009-0004-7

摘要: Based on a detailed illustration for bridge life cycle design which comprises the processes of service life design, aesthetics design, performance design, environmental and ecological design, inspection, maintenance and repair design as well as cost analysis, this paper presented a general framework for bridge life cycle design comprising three design phases and six design processes.

关键词: bridge whole life design     design phase     design process     general framework    

可持续发展工程结构全寿命周期

金伟良,钟小平

《中国工程科学》 2012年 第14卷 第3期   页码 100-107

摘要:

以结构全寿命周期为研究时域,运用结构全寿命设计的新理念,构架了工程结构全寿命设计的目标体系,并从目标体系出发,结合工程结构的特点,分析了设计中结构性能、成本、使用寿命的内涵及相互关系。在综合众多影响因素的基础上构建了工程结构全寿命周期设计理论的研究框架,确定了工程结构性能指标、经济指标及时间指标在全寿命设计理论体系中的核心地位,提出了基于性能设计的耐久性极限状态设计新理念,并分析了性能极限状态所具有的特点。

关键词: 基于可持续发展的设计理论     结构全寿命周期     结构可靠性     结构寿命周期成本     结构使用寿命    

Whole-life Thinking and Engineering the Future

Roger Flanagan

《工程管理前沿(英文)》 2014年 第1卷 第3期   页码 290-296 doi: 10.15302/J-FEM-2014040

摘要: Whole-life thinking for engineers working on the built environment has become more important in a fast changing world. Whole-life thinking is not new, every project attempts to balance the initial capital cost with the operating and maintenance cost of an asset. Engineers are increasingly concerned with complex systems, in which the parts interact with each other and with the outside world in many ways — the relationships between the parts determine how the system behaves. Systems thinking provides one approach to developing a more robust whole-life approach. Systems thinking is a process of understanding how things influence one another within a wider perspective. Complexity, chaos, and risk are endemic in all major projects. New approaches are needed to produce more reliable whole-life predictions. Best value, rather than lowest cost, can be achieved by using whole-life appraisal as a part of the design and delivery strategy.

关键词: whole-life thinking     systems thinking     complexity     chaos     risk management through life    

The Research on Subject Behavioral Risk of Whole Life-cycle Water Conservation Projects

Hong-yong Liu,Ji Guo,Wei-tao He

《工程管理前沿(英文)》 2014年 第1卷 第4期   页码 348-352 doi: 10.15302/J-FEM-2014048

摘要: In 2011, water conservation projects construction in China entered a stage of rapid growth. In February 2013 three dam safety accidents occurred due to improper participant subject behaviors. Improving security and risk management of water conservation projects is therefore considered as imminent. It is urgent to research the risks of the participant subject behaviors. This article takes each participating subject in the whole life-cycle of water conservation projects as the research object, analyzes the risk behaviors and risk evolution processes, dissects the cause of the risks of the participating subject behaviors on the basis of the theory of risk effect, and puts forward that reinforcing the penalties, improving criminal cost and strengthening the engineering ethics education is an effective way to solve safety problems of the current projects.

关键词: water conservation projects     subject behavior     safety accident     risk effect     engineering ethics    

苏通大桥5 800 t钢吊箱整体沉放技术

张雄文,任回兴

《中国工程科学》 2010年 第12卷 第2期   页码 22-26

摘要:

苏通大桥是我国在长江河口地区建设的世界首座跨径超千米的斜拉桥,主塔基础位于深水潮汐急流河段,采用钻孔灌注桩群桩基础,是规模最大的群桩基础。对于深水急流条件下的群桩基础,为承台提供施工条件的钢吊箱的高精度施工是一个关键难题。从沉放方案选择、结构方案设计、制作和安装、整体沉放工艺、同步性控制及定位等方面阐述了苏通大桥主塔基础5 800 t钢吊箱的整体沉放技术与工艺。其中,将钻孔桩施工平台与钢吊箱底板结合的结构方案和钢吊箱整体沉放工艺、同步性控制和定位技术具有明显的创新性。

关键词: 苏通大桥     大型钢吊箱     制作与安装     整体沉放     同步性控制    

Sustainability of steel structures: towards an integrated approach to life-time engineering design

Raffaele LANDOLFO, Lucrezia CASCINI, Francesco PORTIOLI

《结构与土木工程前沿(英文)》 2011年 第5卷 第3期   页码 304-314 doi: 10.1007/s01709-011-0123-9

摘要: Nowadays, the construction sector is more and more oriented toward the promotion of sustainability in all its activities. The goal to achieve is the optimization of performances, over the whole life-cycle, with respect to environmental, economic and social requirements. According to the latest advances, the concept of sustainability applied to constructions covers a number of branches such as life-cycle costing, ecology, durability and even structural design. Several procedures and design tools have been implemented in the framework of international research. Indeed the current trend in civil engineering research is moving towards life-time engineering, with the aim to implement integrated methodologies to consider as a whole all the sustainability requirements according to time-dependent multi-performance-based design approaches. Following a general introduction of the concept of sustainability applied to constructions, this paper presents an overview of life-time engineering methodologies according to the current state-of-the-art. In particular the methods currently received by International Standards are discussed. A special focus is devoted to the durability design of metal structures with respect to the degradation phenomena able to impair the structural capacity over time. Finally a proposal towards an integrated approach to life-time engineering design of steel structures and needs for further advances are presented.

关键词: sustainability     life-time engineering     performance based design     durability     metal structures    

Major bridge projects——a multi-disciplinary approach

Klaus H. OSTENFELD, Erik Y. ANDERSEN

《结构与土木工程前沿(英文)》 2011年 第5卷 第4期   页码 479-495 doi: 10.1007/s11709-011-0137-3

摘要: Modern bridge building is much more than concrete, steel and money. The overall socioeconomic impact, influence on people migration, traffic, use of primary materials, safety of construction impact on the environment, energy, risk scenarios, health, and most relevant now: climate and CO emissions, are among the parameters which enter into the decision process at the overall holistic conceptual level, the more detailed level of selection of bridge sites, and selection of bridge types as well as construction methods and selection of materials and products. The paper illustrates these dilemmas and illustrates by specific examples how this complicated decision process can be managed and structured in order to arrive at an overall satisfactory solution for design, construction and maintenance throughout the lifetime (life cycle) to these sometimes contradictory parameters and requirements.

关键词: bridges     materials     climate     risk     safety     environment     socioeconomics     traffic     CO2     energy     life cycle     society     aesthetics    

Life cycle and performance based seismic design of major bridges in China

FAN Lichu

《结构与土木工程前沿(英文)》 2007年 第1卷 第3期   页码 261-266 doi: 10.1007/s11709-007-0033-z

摘要: The idea of life cycle and performance based seismic design of major bridges is introduced. Based on the key components and non-key components of a bridge and the consideration of the inspectability, replaceability, reparability, controllability and retrofitability of the bridge components, different seismic design levels and expected performance objectives are suggested for the major bridges in China. The vulnerability analysis and progressive collapse analysis, as well as risk assessment, are also proposed to be the important issues to study in order to guide the seismic design of major bridges in the future.

关键词: controllability     progressive     reparability     different     important    

Trial design of arch bridge of composite box section with steel web-concrete flange

Jiangang WEI, Qingwei HUANG, Baochun CHEN,

《结构与土木工程前沿(英文)》 2010年 第4卷 第3期   页码 370-375 doi: 10.1007/s11709-010-0073-7

摘要: The concrete arch bridge is a natural and appropriate structural solution, aesthetically pleasing and easily integrated into the environment, especially in mountainous and island areas. However, construction difficulty and cost will increase with heavy self-weight when the span enlarges. A potential solution is to use a composite box arch ring with steel web-concrete flange. Taking Wanzhou Yangtze River Bridge (the longest concrete arch bridge in the world with a main span of 420 m) as a prototype, trial designs of a composite box arch with steel webs (including corrugated steel webs and plain steel webs) and concrete flanges were carried out. Comparison of quantities and structural behaviors of the prototype concrete arch with the two trial designed composite arch was presented. It is shown that the self-weight of the composite arch can reduce about 28% and the structures can meet the design requirements, therefore it is possible to use the two composite arches in long span arch bridges.

关键词: steel webs     concrete     box arch     trial design     structural behaviors     finite element method    

Particle swarm optimization model to predict scour depth around a bridge pier

Shahaboddin SHAMSHIRBAND, Amir MOSAVI, Timon RABCZUK

《结构与土木工程前沿(英文)》 2020年 第14卷 第4期   页码 855-866 doi: 10.1007/s11709-020-0619-2

摘要: Scour depth around bridge piers plays a vital role in the safety and stability of the bridges. The former approaches used in the prediction of scour depth are based on regression models or black box models in which the first one lacks enough accuracy while the later one does not provide a clear mathematical expression to easily employ it for other situations or cases. Therefore, this paper aims to develop new equations using particle swarm optimization as a metaheuristic approach to predict scour depth around bridge piers. To improve the efficiency of the proposed model, individual equations are derived for laboratory and field data. Moreover, sensitivity analysis is conducted to achieve the most effective parameters in the estimation of scour depth for both experimental and filed data sets. Comparing the results of the proposed model with those of existing regression-based equations reveal the superiority of the proposed method in terms of accuracy and uncertainty. Moreover, the ratio of pier width to flow depth and ratio of 50 (mean particle diameter) to flow depth for the laboratory and field data were recognized as the most effective parameters, respectively. The derived equations can be used as a suitable proxy to estimate scour depth in both experimental and prototype scales.

关键词: scour depth     bridge design and construction     particle swarm optimization     computational mechanics     artificial intelligence     bridge pier    

泰州大桥加劲梁设计

单宏伟,丁磊,周青

《中国工程科学》 2012年 第14卷 第5期   页码 4-9

摘要:

泰州大桥是世界上首座超千米的三塔两跨悬索桥,加劲梁结构体系复杂并有其独特之处。在设计过程中根据三塔悬索桥的结构特点,加劲梁构造细节设计在润扬大桥的基础上做了较大改进和创新,介绍了加劲梁的结构体系、构造设计、结构计算以及梁段的加工制造和架设情况。

关键词: 悬索桥     加劲梁     结构体系     构造设计    

三塔悬索桥中间塔施工关键技术

田唯,刘建波,游新鹏

《中国工程科学》 2012年 第14卷 第5期   页码 23-28

摘要:

泰州大桥中间塔采用深水沉井基础与纵向“人”字形钢塔相组合的结构形式,其施工极为复杂。该项目通过前期研究成果,在深水沉井基础施工过程中利用上下游锚墩定位技术,结合信息化实时监控系统,确保了沉井的准确定位和精确着床,同时采用终沉控制措施成功防止了沉井在终沉阶段的突沉、超沉现象。钢塔架设精度高,调整节段少,且在安装过程中结构存在多次体系转换,针对以上特点,采用几何控制的全过程控制理念,将节段制造误差、预拼装线性和架设误差进行统一分析,建立精度管理系统,最终钢塔的架设精度远远优于设计精度。泰州大桥中间塔施工取得了

关键词: 泰州大桥     锚墩定位     实时监控     终沉控制     全过程控制     架设精度    

Seismic performance of fabricated continuous girder bridge with grouting sleeve-prestressed tendon composite

《结构与土木工程前沿(英文)》   页码 827-854 doi: 10.1007/s11709-023-0954-1

摘要: The seismic performance of a fully fabricated bridge is a key factor limiting its application. In this study, a fiber element model of a fabricated concrete pier with grouting sleeve-prestressed tendon composite connections was built and verified. A numerical analysis of three types of continuous girder bridges was conducted with different piers: a cast-in-place reinforced concrete pier, a grouting sleeve-fabricated pier, and a grouting sleeve-prestressed tendon composite fabricated pier. Furthermore, the seismic performance of the composite fabricated pier was investigated. The results show that the OpenSees fiber element model can successfully simulate the hysteresis behavior and failure mode of the grouted sleeve-fabricated pier. Under traditional non-near-fault ground motions, the pier top displacements of the grouting sleeve-fabricated pier and the composite fabricated pier were less than those of the cast-in-place reinforced concrete pier. The composite fabricated pier had a good self-centering capability. In addition, the plastic hinge zones of the grouting sleeve-fabricated pier and the composite fabricated pier shifted to the joint seam and upper edge of the grouting sleeve, respectively. The composite fabricated pier with optimal design parameters has good seismic performance and can be applied in high-intensity seismic areas; however, the influence of pile-soil interaction on its seismic performance should not be ignored.

关键词: seismic performance     continuous girder bridge     grouting sleeve-prestressed tendon composite connections     grouted sleeve connection     design parameters    

西堠门大桥结构监测系统的设计与实现(I):系统设计

刘志强,李娜,冯良平,张革军

《中国工程科学》 2010年 第12卷 第7期   页码 96-100

摘要:

研究了西堠门大桥结构监测系统的设计原则,阐述桥梁结构监测系统的传感器子系统、数据采集与传输子系统、数据管理子系统以及结构状态识别与综合评估子系统的设计方法和功能要求。

关键词: 桥梁     结构监测系统     设计方法     系统集成    

The Rion-Antirion bridge—when a dream becomes reality

Jacques COMBAULT

《结构与土木工程前沿(英文)》 2011年 第5卷 第4期   页码 415-426 doi: 10.1007/s11709-011-0130-x

摘要: Opened to traffic in August 2004, the Rion-Antirion Bridge crosses the Gulf of Corinth near Patras in western Greece. It consists of an impressive multi cable-stayed span bridge connected to the land by two approaches. An exceptional combination of physical conditions made this project quite unusual: high water depth, deep strata of weak soil, strong seismic activity and fault displacements. In addition a risk of heavy ship collision had to be taken into account. The structure has been designed in view of challenging severe earthquakes and ensuring the everyday serviceability of the link as well. To make the bridge feasible, innovative techniques had to be developed: The strength of the in situ soil has been improved by means of inclusions; the bridge deck has been suspended on its full length, and therefore isolated as much as it can be.

关键词: bridge     multi cable-stayed spans     soil reinforcement     inclusions     yield theory     capacity design     push-over     dry dock     wet dock    

标题 作者 时间 类型 操作

General framework for bridge life cycle design

Junhai MA, Airong CHEN, Jun HE

期刊论文

可持续发展工程结构全寿命周期

金伟良,钟小平

期刊论文

Whole-life Thinking and Engineering the Future

Roger Flanagan

期刊论文

The Research on Subject Behavioral Risk of Whole Life-cycle Water Conservation Projects

Hong-yong Liu,Ji Guo,Wei-tao He

期刊论文

苏通大桥5 800 t钢吊箱整体沉放技术

张雄文,任回兴

期刊论文

Sustainability of steel structures: towards an integrated approach to life-time engineering design

Raffaele LANDOLFO, Lucrezia CASCINI, Francesco PORTIOLI

期刊论文

Major bridge projects——a multi-disciplinary approach

Klaus H. OSTENFELD, Erik Y. ANDERSEN

期刊论文

Life cycle and performance based seismic design of major bridges in China

FAN Lichu

期刊论文

Trial design of arch bridge of composite box section with steel web-concrete flange

Jiangang WEI, Qingwei HUANG, Baochun CHEN,

期刊论文

Particle swarm optimization model to predict scour depth around a bridge pier

Shahaboddin SHAMSHIRBAND, Amir MOSAVI, Timon RABCZUK

期刊论文

泰州大桥加劲梁设计

单宏伟,丁磊,周青

期刊论文

三塔悬索桥中间塔施工关键技术

田唯,刘建波,游新鹏

期刊论文

Seismic performance of fabricated continuous girder bridge with grouting sleeve-prestressed tendon composite

期刊论文

西堠门大桥结构监测系统的设计与实现(I):系统设计

刘志强,李娜,冯良平,张革军

期刊论文

The Rion-Antirion bridge—when a dream becomes reality

Jacques COMBAULT

期刊论文