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Loading Capacity of Simply Supported Steel-Concrete Composite Slim Beams Lu Yang1,a, Yuanqing Wang2,b and Yongjiu Shi2,c 1The College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China 2Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Department of Civil Engineering, Tsinghua University, Beijing 100084, China aemail: lyang@bjut.edu.cn, bemail: wang-yq@tsinghua.edu.cn, cemail: shiyj@tsinghua.edu.cn Keywords: Composite Slim Beam; Loading Capacity; FEA; Experimental Investigation Abstract: A steel-concrete composite slim beam, with its steel section encased in a concrete slab, provides a composite steel-concrete floor construction with minimum depth and high fire resistance.
For the structural engineer, it is critical to understand the behavior of composite slim beam in the sagging moment region.
The Structural Engineer, 1997, 77(8): 28-32

Reduced Stiffness Criteria for the Safe Buckling Design of Thin Shells and Its Numerical Validation Hongtao Wang1, a 1Department of Naval Architecture and Ocean Engineering School of Petroleum Engineering, China University of Petroleum 66 West Changjiang Road, Qingdao Economic and Technical Development Zone Shandong 266580, China ahongtao.wang@upc.edu.cn Keywords: Shell buckling, Postbuckling, Imperfection sensitivity, Reduced stiffness method.
Thin metallic shells have long been adopted as major structural components in weight-sensitive applications, especially in marine engineering.
Introduction Due to their efficient load-carrying capacities thin shells have long been used as structural components in weight-sensitive applications, especially in marine engineering.
The RSM has a considerable history of development in the Department of Civil Engineering at University College London [1] and has been shown to be able to predict safe lower bounds for a range of isotropic and stiffened shells through extensive physical tests [2].

Preparation Experiment and Engineering Application of High Performance Concrete of Freezing Shaft in Deep Alluvium Yao Zhishua，Xu Zhenb，Song Haiqingc College of Civil Eng. and Architecture, Anhui University of Science and Technology,Huainan 232001, China ayao.zs@163.com ,b1210578723@qq.com , chaiqingsong80@163.com Keywords: deep alluvium; freezing shaft; shaft lining; high performance concrete; preparation experiment Abstract.
Although it has been used in bridge, China Water Conservancy and high-rise buildings and some surface engineering in C60 ~ C80 high performance concrete, its construction environment and performance requirements has a great difference from freezing shaft.
The application shows that, the construction mix proportion meets the requirement of engineering design, and it is more convenient from the processing, transport to the construction, the selection of raw material is reasonable in economy, and remarkable results has been achieved.
In the freezing shaft, it is the first timel to use the C75 high performance concrete in the history of building the well in our country, and the successful application of engineering has an important extension and ap plication value on design and construction of freezing shaft lining in deep alluvium in our country.
Preparation and application of high performance concrete[M].Beijing: China Planning Press,2003.3:312 [3] Yao Yan, Durability research and engineering application of new high performance concrete[M].

Acknowledgements The authors express their sincere gratitude to the staff of the Department of Civil Engineering at the Faculty of Technology, University of Biskra, Algeria, for their technical assistance and support throughout this research.
Djabri, Numerical investigations of GRS wall performance with tiered configurations, Studies in Engineering and Exact Sciences, 5 (2024) 01-21
Civil Eng. 14 (2020) 391-405
Benmebarek, Numerical analysis of seismic response of back-to-back mechanically stabilized earth walls, International Review of Civil Engineering, 15 (2024)
Balunaini, Performance of retaining walls with compressible inclusions under seismic loading, Civil Eng.

The Equivalent Stress Contrast Analyse of Inverse Structure and General Structure Asphaltum Pavement Jianhong Gao Architecture and Civil Engineering School,UST Inner Mongolia,Baotou 014010,China gjh76219@163.com Keywords: Inverse structure; General structure; Equivalent stress;Contrast analyse Abstract.
The wheel load is treated as circular & average distributing load in engineering design, namely double-round load.
China civil engineering journal, 2004,37(7)：62-65 [6] Xuejun Deng.
Roadbed and road surface engineering[M].

Deterioration and evaluation method of Mechanics Behavior of Reinforced Concrete Column under Sulfate Attack Feng-jie ZHANG Ying-shu YUAN Ruo-yu WANG School of Mechanics and Civil Engineering ,China University of Mining & Technology, Jiangsu Key Laboratory of Environmental Impact and Structural Safety in Engineering Xuzhou ,Jiangsu 221116;China fjz@cumt.edu.cn, ysyuan@cumt.edu.cn,1528294658@qq.com Keywords: concrete；sulfate attack；members with flexure and compression；damage degree Abstract.
Introduction With the birth of Portland cement in 1824, the reinforced concrete is widely used in civil engineering structures.
In recent years, many scholars and engineering technology personnel at home and abroad have studied and theoretically analyzed the mechanical properties of different types of concrete columns.

Experimental study on axial tensile performance of low volume fraction of ternary hybrid fiber reinforced concrete Boru Zhoua , Dongtao Xiab,*, Xiangkun Liuc College of Civil and Building Engineering, Hubei University of Technology, Wuhan 430064, China a.Littledogabc@163.com,b.Xdtxy@126.com,c.457750129@qq.com * Corresponding author.
(in Chinese) [3] HANG Rong,ZHAO Shun-bo,QU Fulai.Experimental study on the tensile performance of steel fiber reinforced concrete[J].Chian civil engineering journal,2006,39(11):63—67.
Journal of Structural Engineering,1986,112:2462—2477
(in Chinese) [8] Standard test methods for fiber reinforced concrete(CECS 13:2009)[S].Beijing:China Association for Engineering Construction Standardization,2010(in Chinese)

The structure of glutinous-lime mortar: a fuzzy fractal system Huashan Yang1,a,*, Yujun Che2,b, Zhen Liao1,c and Tian Lan1,d 1State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan 430072, China 2Schoolof Civil Engineering, Wuhan University, Wuhan 430072, China ahsyang@whu.edu.cn, b1030658432@qq.com, c804417535@qq.com, dlantiannick@163.com Keywords:Glutinous rice-lime mortar; Interface; Fuzzy fractal set Abstract.
Also, The self-similar organic-inorganic structure was observed in the State Key Laboratory of Water Resources and Hydropower Engineering Science (Wuhan University, China).
Acknowledgment The present research was carried out with the financial support of State Key Laboratory of High Performance Civil Engineering Materials (No. 2012CEM010).

Research on Comprehensive Utilization of the Tail Ore Yingjie Chen a and Gen Li b Department of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao, China acyjysu@126.com, bligen_hebut@126.com Keywords: tail ore; particle gradation; easy grinding property; compressive strength; comprehensive utilization.
At present, although our country has large iron ore size tail made concrete products, instead of clay and pave the iron ore production, cement clinker, such as the shougang 2 million tons of production line to the project to move all by the Beijing institute of civil engineering and architecture and shougang mining company developed tailings sand concrete construction, but our country tailings comprehensive utilization of waste is only 7% or so, whether use scale, use value and economic benefit is not into full play.
Conclusions The experiment results are given in this can be directly applied in engineering practice, the content of the ore can satisfy normal mortar performance standards, its wide application can not only to conserve natural resources and protect the ecological environment, and can also be for enterprise to bring significant economic benefits.
Li, Status and research of utilization of iron ore tailings, Mining Engineering, 4 (2006) 7-9

Revision for concrete members crack control criteria based on durability demand LI Yang School of Civil Engineering, Hubei University of technology, Wuhan 430072, China liyang04201@126.com Keywords: concrete cover thickness; durability; crack control; reliability index; calculation guarantee Abstract: Based on Monte Carlo method, the concrete durability reliability indexes for typical concrete members in 50-year-period of service were calculated under normally moist environment conditions.
Introduction At present, concrete durability research has been one of the hottest topics in civil engineering.
Chinese Journal of Underground Space and Engineering, Vol. 3(2007), No.2, p.224-228 [2] Sahmaran M, Li M, Li V C.
Transport properties of engineered cementations composites under chloride exposure.