Search | Engineering

订阅投稿

首页工程期刊工程焦点工程成就工程前沿关于我们 English

资源类型

期刊论文 1083

会议视频 33

年份

2023 46

2022 61

2021 74

2020 71

2019 78

2018 61

2017 46

2016 33

2015 53

2014 52

2013 50

2012 63

2011 51

2010 81

2009 68

2008 38

2007 42

2006 41

2005 20

2004 18

展开︾

关键词

悬索桥 15

泰州大桥 9

苏通大桥 9

斜拉桥 8

桥梁 8

桥梁工程 7

能源 7

技术预见 5

三塔悬索桥 4

南京长江第四大桥 4

有限元法 4

桥梁隧道 4

钢箱梁 4

DX桩 3

2022全球十大工程成就 2

BNLAS 2

D区 2

一阶分析法 2

三塔两跨悬索桥 2

展开︾

检索范围：

排序：展示方式：

SHM-based F-AHP bridge rating system with application to Tsing Ma Bridge

Qi LI, You-lin XU, Yue ZHENG, An-xin GUO, Kai-yuen WONG, Yong XIA

《结构与土木工程前沿（英文）》 2011年第5卷第4期页码 465-478 doi: 10.1007/s11709-011-0135-5

摘要： This paper aims at developing a structural health monitoring (SHM)-based bridge rating method for bridge inspection of long-span cable-supported bridges. The fuzzy based analytic hierarchy approach is employed, and the hierarchical structure for synthetic rating of each structural component of the bridge is proposed. The criticality and vulnerability analyses are performed largely based on the field measurement data from the SHM system installed in the bridge to offer relatively accurate condition evaluation of the bridge and to reduce uncertainties involved in the existing rating method. The procedures for determining relative weighs and fuzzy synthetic ratings for both criticality and vulnerability are then suggested. The fuzzy synthetic decisions for inspection are made in consideration of the synthetic ratings of all structural components. The SHM-based bridge rating method is finally applied to the Tsing Ma suspension bridge in Hong Kong as a case study. The results show that the proposed method is feasible and it can be used in practice for long-span cable-supported bridges with SHM system.

关键词： structural health monitoring (SHM) bridge rating method fuzzy based analytic hierarchy approach criticality and vulnerability rating Tsing Ma Bridge

HTML PDF 收藏

Method for rating energy performance of public buildings

Jincheng XING,Youli LI,Jihong LING,Huiyang YU,Liwen WANG

《能源前沿（英文）》 2014年第8卷第3期页码 379-385 doi: 10.1007/s11708-014-0328-4

摘要： This paper discussed a comparative study of several state-of-art methods for determining building energy consumption benchmark. A new approach, which combined the idea of “building benchmark” and “operational benchmark” in its rating system, was proposed. A case study was conducted which applied the proposed approach to benchmarking an existing office building in Tianjin. Besides, the calculation of benchmarks of the reference building model and real building model using the rating method in eQUEST was also considered. Furthermore, the simulation results of the reference building model were taken as the baseline to divide real office buildings into different energy performance grades.

关键词： energy consumption benchmark energy efficiency benchmark energy performance level

HTML PDF 收藏

The defect-length effect in corrosion detection with magnetic method for bridge cables

Qiwei ZHANG, Rongya XIN

《结构与土木工程前沿（英文）》 2018年第12卷第4期页码 662-671 doi: 10.1007/s11709-018-0512-4

摘要：

Quantitative evaluation of the steel corrosion in cables is significant for the safe operation of cable-supported bridges. The magnetic flux (MF) examination shows great potential to detect the corrosion defect, or loss of metallic cross-sectional area (LMA). An LMA defect in steel cables can be measured accurately when it is longer than a certain length. However, for defects in early stage, where the length of corrosion area is short, the MF examination may produce unacceptable error. In this study, the effect of defect length on the MF examination for corrosion detection of bridge cables is investigated through theoretical analysis and model experiments. An original analytical model to quantify the influence of defect length is proposed based on the equivalent magnetic circuit method. Then, MF examination experiments are performed on a series of cable models with different defect lengths and locations to verify the analytical model. Further, parameter study is conducted based on the proposed analytical model to clarify the mechanism of the defect-length effect. The results show that the area loss caused by short corrosion damage will be underestimated if the defect-length effect is neglected, and this effect can be quantified efficiently with the proposed analytical model.

关键词： bridge cable corrosion detection defect length MF examination quantitative evaluation

HTML PDF 收藏

Calculation method on shape finding of self-anchored suspension bridge with spatial cables

Yan HAN, Zhengqing CHEN, Shidong LUO, Shankui YANG

《结构与土木工程前沿（英文）》 2009年第3卷第2期页码 165-172 doi: 10.1007/s11709-009-0021-6

摘要： Based on the spatial model, a reliable and accurate calculation method on the shape finding of self-anchored suspension bridge with spatial cables was studied in this paper. On the principle that the shape of the main cables between hangers is catenary, the iteration method of calculating the shapes of the spatial main cables under the load of hanger forces was deduced. The reasonable position of the saddle was determined according to the shape and the theoretical joint point of the main cables. The shapes of the main cables at completed cable stage were calculated based on the unchanging principle of the zero-stress lengths of the main cables. By using a numerical method combining with the finite element method, one self-anchored suspension bridge with spatial cables was analyzed. The zero-stress length of the main cables, the position of the saddle, and the pre-offsetting of the saddle of the self-anchored suspension bridge were given. The reasonable shapes of the main cables at bridge completion stage and completed cable stage were presented. The results show that the shape-finding calculation method is effective and reliable.

关键词： bridge engineering self-anchored suspension bridges special cables shape-finding calculation method

HTML PDF 收藏

Ribbon bridge in waves based on hydroelasticity theory

Cong WANG, Shixiao FU, Weicheng CUI

《结构与土木工程前沿（英文）》 2009年第3卷第1期页码 57-62 doi: 10.1007/s11709-009-0005-6

摘要： For the design and operation of a floating bridge, the understanding of its hydroelastic behavior in waves is of great importance. This paper investigated the hydroelastic performances of a ribbon bridge under wave action. A brief introduction on the estimation of dynamic responses of the floating bridge and the comparisons between the experiments and estimation were presented. Based on the 3D hydroelasticity theory, the hydroelastic behavior of the ribbon bridge modeled by finite element method (FEM) was analyzed by employing the mode superposition method. And the relevant comparisons between the numerical results and experimental data obtained from one tenth scale elastic model test in the ocean basin were made. It is found that the present method is applicable and adaptable for predicting the hydroelastic response of the floating bridge in waves.

关键词： hydroelasticity ribbon bridge wave finite element method (FEM)

HTML PDF 收藏

鄂东大桥混合梁斜拉桥合龙技术

刘明虎,谭皓,徐国平,赵灿晖

《中国工程科学》 2011年第13卷第10期页码 99-104

摘要：

结合世界第二混合梁斜拉桥——主跨926 m的鄂东大桥，研究了大跨径混合梁斜拉桥中跨合龙方案的影响因素及关键技术，确定采用加载合龙方案。加载合龙方法具有较好的温度适应性，对成桥结构线形和受力影响很小，满足无应力施工控制方法的要求，适用于大跨径混合梁斜拉桥。研究成果及实践经验对同类型桥梁具有借鉴指导意义。

关键词：鄂东大桥混合梁斜拉桥合龙技术加载合龙无应力状态控制法

HTML PDF 收藏

Time-domain and frequency-domain approaches to identification of bridge flutter derivatives

Zhengqing CHEN

《结构与土木工程前沿（英文）》 2009年第3卷第2期页码 173-179 doi: 10.1007/s11709-009-0034-1

摘要： Flutter derivatives are essential for flutter analysis of long-span bridges, and they are generally identified from the vibration testing data of a sectional model suspended in a wind tunnel. Making use of the forced vibration testing data of three sectional models, namely, a thin-plate model, a nearly streamlined model, and a bluff-body model, a comparative study was made to identify the flutter derivatives of each model by using a time-domain method and a frequency-domain method. It was shown that all the flutter derivatives of the thin-plate model identified with the frequency-domain method and time-domain method, respectively, agree very well. Moreover, some of the flutter derivatives of each of the other two models identified with the two methods deviate to some extent. More precisely, the frequency-domain method usually results in smooth curves of the flutter derivatives. The formulation of time-domain method makes the identification results of flutter derivatives relatively sensitive to the signal phase lag between vibration state vector and aerodynamic forces and also prone to be disturbed by noise and nonlinearity.

关键词： long-span bridges wind-induced vibration flutter derivatives forced vibration test time-domain method frequency-domain method

HTML PDF 收藏

基础模拟方式对泰州大桥地震响应的影响

韩磊,彭天波,赵艺

《中国工程科学》 2012年第14卷第5期页码 51-56

摘要：

建立了3种基础-土相互作用模拟方式，分别为考虑一定桩身柔性的固结独塔模型，基于“m”法的线性独塔模型，以及采用“p-y”曲线法的非线性独塔模型。采用El-Centro和Kobe两种地震波分别对3个模型进行计算分析，结果发现，基于“m”法的线性独塔沉井模型与“p-y”曲线法的非线性独塔沉井模型相比响应偏大，而基于“m”法的线性独塔群桩基础模型则与“p-y”曲线法的非线性独塔群桩基础模型有较好的吻合。

关键词：泰州大桥基础模拟方式地震动输入结构响应

HTML PDF 收藏

基于项目的路面养护可持续性评价工具 Article

Yibo Zhang, J.P. Mohsen

《工程（英文）》 2018年第4卷第2期页码 200-208 doi: 10.1016/j.eng.2018.03.001

摘要：

路面需要养护，以防止其过度损坏，或使其恢复性能，然而在许多情况下，路面养护的重要性并没有得到足够的重视，它经常会被忽视或被作为低优先级处理。目前大多数的养护活动都存在预算问题，且只专注于清理损坏的路段。延期的路面养护会对环境和社会产生影响，因此可能会影响与养护相关的成本。可持续性评级工具是列举、解释和评估此类影响的好方法。目前已经为路面设计了多种评级工具，但是，路面养护与新建、扩建、改造路面等工程相比有不同的特点。本研究回顾了9 种路面可持续性评级工具，但这些工具没有一个可以完全描述养护特征，或者可以直接用于评估养护项目。因而，一个新型的用于路面养护的可持续性评级工具开始发展，这个新的工具可以用来评估单独的养护项目，并且可以提高公众对于路面养护重要性的认识。本文对其细节进行了描述，并通过示例展示了其评估过程和结果。

关键词：可持续性路面养护 PSIM 评级工具层次分析法

HTML PDF 收藏

A method for examining the seismic performance of steel arch deck bridges

Cheng-Yu LIANG, Airong CHEN,

《结构与土木工程前沿（英文）》 2010年第4卷第3期页码 311-320 doi: 10.1007/s11709-010-0080-8

摘要： To examine the seismic resistance performance of a steel arch bridge during a strong earthquake, an approach is proposed in this paper to determine the ultimate strain of an arch rib using the static elasto-plastic large deformation theory. A steel fixed-end deck arch bridge with a span length of 200 m was used as an example in this study. The ultimate strain of the arch rib was calculated using the elasto-plastic finite element model. The seismic responses of the arch bridge exposed to strong earthquakes in two and three directions were also simulated. Moreover, the effect of earthquake motion in the lateral direction on the elasto-plastic earthquake response was discussed, and the seismic resistance of the structure was analyzed. The results show that steel arch bridges have preferable seismic resistance under strong earthquake conditions. While lateral earthquake motion has some influence on the damage to an arch bridge, it has little effect on the displacement, axial force, and bending moment responses of the arch rib. It is feasible to examine the seismic performance of the arch bridge by ascertaining the out-of-plane and in-plane earthquake responses of the bridge.

关键词： seismic performance earthquake damage steel deck arch bridge

HTML PDF 收藏

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

HTML PDF 收藏

Influence mechanism of dynamic and static liquid bridge forces on particle deposition behaviors in solar

Xueqing LIU, Xiaodong ZHAO, Luyi LU, Jianlan LI

《能源前沿（英文）》 2021年第15卷第2期页码 499-512 doi: 10.1007/s11708-021-0742-3

摘要： Solar energy is one of the most promising forms of renewable energy for solving the energy crisis and environmental problems. Dust deposition on photovoltaic mirrors has a serious negative impact on the photoelectric conversion efficiency of solar power stations. In this paper, the influence mechanism of the dynamic and static liquid bridge forces on particle deposition behaviors on solar photovoltaic mirrors is investigated. In addition, the expression and physical meaning of the particle critical separation velocity are proposed. The research results show that the static liquid bridge force can be the primary deposition force causing dust particles to adhere to photovoltaic mirrors. However, the dynamic liquid bridge force can act as a resistance force for the particle motion process and even make dust particles roll along and finally stay on the mirror. The contact force is the primary separation force that causes dust particles to flow away from the mirror. Whether dust particles adhere to the mirror depends on the relative size of the deposition and separating forces. The particle critical separation velocity describes the relative size of the collision-rebound effect and mirror adhesion effect and is expressed in Eq. (16). These research findings can provide theoretical guidance for mirror cleaning methods in the operation process of photovoltaic mirrors.

关键词： dust deposition discrete element method (DEM) photovoltaic mirrors solar energy

HTML PDF 收藏

Evaluation of the static and dynamic structural performance of segmental pre-stressed concrete box girder bridge

Ali Fadhil NASER, Zonglin WANG

《结构与土木工程前沿（英文）》 2013年第7卷第2期页码 164-177 doi: 10.1007/s11709-013-0196-8

摘要： The objectives of this study are to explain the repairing and strengthening methods which are used to improve the structural performance of the bridge structure, to analyze the static and dynamic responses after strengthening, and to evaluate the performance of the bridge structure after repairing and strengthening. The methods of repairing and strengthening include reconstruction the deck of the bridge by casting 10 cm layer of concrete, strengthening the web and bottom floor of box girders of middle spans and side spans by sticking the steel plates, strengthening the whole bridge structure by using external pre-stressing tendons, and treatment the cracks. The results of theoretical analysis show that the values of tensile stress and vertical deflection are decreased and the compressive stress is increased after strengthening. There are not tensile stresses are appeared in the sections of the bridge structure. The modal analysis results show that the value of natural frequency is equal to 2.09 Hz which is more than the values before strengthening which is equal to 1.64 Hz, indicating that the stiffness of the bridge structure is improved and the strengthening process is effective to improve the cracks resistance and bearing capacity of the bridge structure.

关键词： structural performance steel plates external pre-stressing cracks grouting method static

HTML PDF 收藏

基于ANSYS的悬索桥分析方法研究

谢雪峰,罗喜恒

《中国工程科学》 2012年第14卷第5期页码 101-105

摘要：

用于悬索桥分析的专用程序和通用程序均有其局限性。基于ANSYS平台进行二次开发，主要着眼于鞍座的模拟、顶推的实现、主缆和吊索的无应力长度确定、无应力长度保持不变的方法，并给出润扬大桥算例予以验证，使得用ANSYS分析悬索桥具有了专用程序的精度和通用程序前后处理方便的特性。

关键词：悬索桥 ANSYS二次开发鞍座顶推无应力长度迭代

HTML PDF 收藏

泰州大桥钢中塔线形控制误差调整方法

张向群,王琳,游新鹏

《中国工程科学》 2012年第14卷第5期页码 29-32

摘要：

泰州大桥钢中塔首次采用纵向“人”字形、横向门式框架结构，采用节段预制-现场安装的方法安装钢塔。建立针对复杂钢塔的全过程施工控制体系，在制造阶段对节段形态以及制造线形进行精确测控的基础上，在安装阶段根据实际安装误差情况确定预先设置调节缝的调整量，达到对钢塔线形误差调整的目的。现场实施结果表明，泰州大桥中间钢塔的线形控制效果良好，最终线形各项精度均优于设计要求。

关键词：泰州大桥中间钢塔线形控制误差调整