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Journal of Wuhan University of technology(Materials Science) 2025年第1期40卷 164-170页

作者： WU Min CAO Kailei XIAO Weirong YU Zetai CAO Jierong DING Qingjun LI Jinhui China Railway construction Corporation Harbour and Channel Engineering Bureau Group Co. LTDZhuhai 519000China Con-struction Headquarters of Zhoushan Liuheng bridge Phase II Project Zhoushan 316000China China Railway construction bridge En-gineering Bureau Group Co. LTDTianjin 300000China State key laboratory of Silicate Material for Architecture(Wuhan University of technology) Wuhan 430070China College of Materials Science and Engineering Wuhan Textile UniversityWuhan 430200China

The paper presents experimental investigation results of crack pattern change in cement pastes caused by external sulfate attack(ESA).To visualize the formation and development of cracks in cement pastes under ESA,an X-ray computed tomography(X-ray CT)was used,i e,the tomography system of Zeiss Xradia 510 *** results indicate that X-CT can monitor the development process and distribution characteristics of the internal cracks of cement pastes under ESA with attack *** addition,the C3A content in the cement significantly affects the damage mode of cement paste specimens during sulfate *** damage of ordinary Portland cement(OPC)pastes subjected to sulfate attack with high C3A content are severe,while the damage of sulfate resistant Portland cement(SRPC)pastes is much smaller than that of OPC ***,a quadratic function describes the correlation between the crack volume fraction and development depth for two cement pastes immermed in sulfate solution.

关键词： concrete external sulfate attack damage evolution situ X-ray computed tomography

Experimental Observing Damage Evolution in Cement Pastes Exposed to External Sulfate Attack by in situ X-ray Computed Tomography

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Journal of Wuhan University of technology(Materials Science) 2025年第1期 164-170页

作者：吴敏 CAO Kailei XIAO Weirong YU Zetai 曹杰荣 DING Qingjun LI Jinhui China Railway construction Corporation Harbour and Channel Engineering Bureau Group Co. LTD construction Headquarters of Zhoushan Liuheng bridge Phase Ⅱ Project China Railway construction bridge Engineering Bureau Group Co. LTD State key laboratory of Silicate Material for Architecture (Wuhan University of technology) College of Materials Science and Engineering Wuhan Textile University

The paper presents experimental investigation results of crack pattern change in cement pastes caused by external sulfate attack （ESA）.To visualize the formation and development of cracks in cement pastes under ESA,an X-ray computed tomography （X-ray CT） was used,i e,the tomography system of Zeiss Xradia 510 *** results indicate that X-CT can monitor the development process and distribution characteristics of the internal cracks of cement pastes under ESA with attack *** addition,the C3A content in the cement significantly affects the damage mode of cement paste specimens during sulfate *** damage of ordinary Portland cement （OPC） pastes subjected to sulfate attack with high C3A content are severe,while the damage of sulfate resistant Portland cement （SRPC） pastes is much smaller than that of OPC ***,a quadratic function describes the correlation between the crack volume fraction and development depth for two cement pastes immermed in sulfate solution.

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Technical research on control of caisson construction for the middle tower foundation of Taizhou bridge

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Engineering Sciences 2011年第2期9卷 9-13,45页

作者： Liu Jianbo Yang Yanhua Zhang Yongtao Du Song key lab of large-span bridge construction technology Ministry of CommunicationWuhan 430014 China

The real-time informational monitoring system is adopted in the construction of middle tower foundation of Taizhou bridge for the first time. The geometric state of the caisson, the stress of upstream and downstream anchorage cables, underwater topography, the drag forces of the caisson cutting edge and frictional resistances of the sidewall and etc. are monitored in real time. According to the synthesized data analysis and decision-making system, the spatial states of the caisson are adjusted in time to locate and embed the deep water caisson precisely. The offset error of the caisson is less than 30 cm and the vertical error is 1/363 at the final stage. The control technology for construction of large caisson under deep water is concluded and would be helpful for the construction of bridge foundation in the future.

关键词： Taizhou bridge caisson foundation control technology real-time monitoring system

Research on the Influence of Steam Curing on Properties of C50 Shield Segment Concrete

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武汉理工大学学报 2010年第17期32卷 137-140页

作者： LI J H Wuhan Harbour Engineering Design & Research Co. Ltd.Wuhan 430071China key lab of large-span bridge construction technology Ministry of CommunicationsWuhan 430071China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China

The effects of steam curing on mechanical properties,drying shrinkage,cracking sensitivity,anti-permeability,and carbonation resistance of C50 shield segment concrete were investigated,which were compared with the standard curing conditions. The results indicated that steam curing could increase early strength of concrete and reduce its drying shrinkage. However,steam curing reduced later strength of concrete,increased its crack sensitivity and deteriorated its anti-permeability and carbonation resistance. Moreover,the incorporation of fly ash could improve the durability of steam-cured concrete.

关键词： shield segment concrete steam curing properties influence

Distributed fiber optic sensing system for vibration monitoring of 3D printed bridges

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Optoelectronics Letters 2025年第1期21卷 28-34页

作者： ZHAO Shuai ZHOU Ran LUO Mingming LIU Jianfei LIU Xiongfei ZHOU Tao School of Electronic Information Engineering Hebei University of Technology Tianjin key laboratory of Electronic Materials and Devices School of Civil Engineering and Transportation Hebei University of Technology Tianjin Jinhang Institute of Technical Physics

The fiber optic sensing technology provides data support in structural health monitoring of the macro facilities, including design, construction, and maintenance of bridges, tunnels, ports and other infrastructures. In this paper, a distributed vibration sensing system is proved to be responsive to a single touch over a 1.8-m-long equivalent fiber segment, covering a vibration frequency from 5 Hz to 25 kHz. The sensing fiber was arranged as an S type layout on the bridge to recognize the standing state, windblown disturbance, and walking vibration. Moreover, the knocking and climbing events are recognized fiber laying spinning lines and hanging on the fences, respectively. The demonstration shows an accurate positioning and sensitive vibration monitoring applied on the automated three-dimensional(3D) printed bridge, which is applicable to all kinds of 3D printed facilities as intelligent sensory neuro-networks.

关键词： Spinning (fibers)

Research on Concrete Preparation for the Steel-concrete Composite Segment of Jingyue Yangtze River bridge

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武汉理工大学学报 2010年第17期32卷 196-200页

作者： DENG B Wuhan Harbor Engineering Design & Research Institute Co. Ltd Wuhan 430071China key lab of large-span bridge construction technology Ministry of CommunicationWuhan 430071China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China

To improve the quality of the steel-concrete composite segment of the box girder,to ensure the compactness of concrete to avoid debonding and to enhance the fatigue strength of concrete are critical to the concrete preparation for such site. Furthermore,the coordination ability to deformation between steel and concrete is also important because of great difference of the elastic modulus between them. Concrete for the steel-concrete composite segment with high fluidity,excellent crack resistance and low shrinkage was prepared by adding efficient poly-carboxylic water-reducing agent,high quality fly ash and expansion agent to it. The quality of the concrete of the half partial testing block showed that the optimal mix proportion of polypropylene fiber reinforced concrete had achieved expected effect,ensured high quality,thus meeting the requirements of construction.

关键词： steel-concrete composite segment polypropylene fiber reinforced concrete crack resistance

Experimental on C50 Ultra-high-early Strength Concrete

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武汉理工大学学报 2010年第17期32卷 176-178,185页

作者： ZHA J Wuhan Harbour Engineering Design & Research Institute Co. Ltd Wuhan 430071China key lab of large-span bridge construction technology Ministry of CommunicationsWuhan 430071China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China

In this paper,C50 ultra-high-early-strength concrete was prepared with rapid-harden sulphoaluminate cement,alkali carbonate early strength agent,inorganic tribasic acid retarder and polycarboxylate water reducing agent. The properties testing results of C50 ultra-high-early-strength concrete indicated that the compressive strength at 12 h exceeded 37 MPa and at 3 d exceeded 59 MPa. Compared to the C50 ordinary reference concrete,the durability of C50 ultra-high-early strength concrete was investigated. The results indicated that C50 ultra-high-early-strength concrete had the same chloride ion permeability resistance,carbonization resistance and abrasion resistance to the C50 ordinary concrete. As to the sulfate resistance,the ultra-high-early-strength concrete was much better than the ordinary concrete.

关键词： ultra-high-early strength concrete rapid-harden sulphoaluminate cement alkali carbonate early strength agent inorganic tribasic acid retarder durability

Recent Advancements in the Optimization Capacity Configuration and Coordination Operation Strategy of Wind-Solar Hybrid Storage System

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Energy Engineering 2025年第1期122卷 285-306页

作者： Hongliang Hao Caifeng Wen Feifei Xue HaoQiu Ning Yang Yuwen Zhang Chaoyu Wang Edwin E.Nyakilla Department of New Energy Storage Peking University Ordos Research Institute of EnergyOrdos017010China School of Energy and Power Engineering Inner Mongolia University of TechnologyHohhot010080China key laboratory of Wind Energy and Solar Energy Utilization technology Inner Mongolia University of TechnologyHohhot010051China

Present of wind power is sporadically and cannot be utilized as the only fundamental load of energy *** paper proposes a wind-solar hybrid energy storage system(HESS)to ensure a stable supply grid for a longer period.A multi-objective genetic algorithm(MOGA)and state of charge(SOC)region division for the batteries are introduced to solve the objective function and configuration of the system capacity,***/Simulink was used for simulation *** optimization results show that for a 0.5 MW wind power and 0.5 MW photovoltaic system,with a combination of a 300 Ah lithium battery,a 200 Ah lead-acid battery,and a water storage tank,the proposed strategy reduces the system construction cost by approximately 18,000 ***,the cycle count of the electrochemical energy storage systemincreases from4515 to 4660,while the depth of discharge decreases from 55.37%to 53.65%,achieving shallow charging and discharging,thereby extending battery life and reducing grid voltage fluctuations *** proposed strategy is a guide for stabilizing the grid connection of wind and solar power generation,capability allocation,and energy management of energy conservation systems.

关键词： Electric-thermal hybrid storage modal decomposition multi-objective genetic algorithm capacity optimization allocation operation strategy

Research on Service Life Prediction Model of Concrete Structure of Sea-crossing bridge

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武汉理工大学学报 2010年第17期32卷 141-146页

作者： WANG C J ZHANG G Z LIU K X TU L Q LI J H QIN M Q Zhejiang Province Zhoushan Island Linking construction Commanding Department Zhejiang 316032China Wuhan Harbor Engineering Design & Research Institute Co. Ltd Wuhan 430071China key lab of large-span bridge construction technology Ministry of CommunicationWuhan 430071China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China

According to the chloride corrosion environment,service life prediction model of concrete structure of sea-crossing bridge was built using modified Fick's second law and the whole probability calculation method,which was suitable for China. Furthermore,a visual service life prediction program of concrete structure was developed by optimized Monte Carlo method. Meanwhile,Life 365 program was compared,indicating reliability of the prediction program. Finally,the validity of prediction model was verified in JinTang bridge of Zhoushan Island Mainland Linkage Project.

关键词： sea-crossing bridge concrete structure service life prediction model verify

Design and Pilot Programs of Marine Exposure Station of A Sea-crossing bridge

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武汉理工大学学报 2010年第17期32卷 131-136页

作者： QIN M Q WANG C J TU L Q ZHANG G Z SUN T X Wuhan Harbour Engineering Design and Research Co. Ltd. Wuhan 430071China key lab of large-span bridge construction technology Ministry of CommunicationsWuhan 430071China Zhejiang Province Zhoushan Island Linking construction Commanding Department Zhoushan 316032China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China

This paper presents the Location,the structural design as well as the anti-corrosion and the pilot programs of the marine exposure station of Zhoushan Archipelago seas sea-crossing bridges. Subjected to the marine environment,the concrete structures in serve with different mixing proportions,cover thickness,additional anti-corrosion measures such as rust-preventing agent,coating,penetration crystalline waterproof material,silicone and permeable fabric were studied. Those results obtained provide important information for the maintenance of marine concrete and the structural design of sea-crossing bridges in the above sea area.

关键词： exposure station sea-crossing bridge marine concrete durability design