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., graduate of Municipal Engineering of College of Urban Construction of Wuhan University of Science and Technology Corresponding author: Wang Xun, doctor, associate professor, Department of Water Supply and Drainage Engineering of College of Urban Construction of Wuhan University of Science and Technology, 430070; Email: wx305305@163.com; telephone: 13329729393 Keywords Wastewater treatment Design of extension project Efficient sedimentation tank Biological Aerated Filter Abstract Efficient sedimentation tank and Biological Aerated Filter are introduced in extension project in Wuhan Huangpu road WWTP,the first-stage project pretreatment capacity of which is 10×104m3/d.This process provides high treatment efficiency while occupying a small footprint, noise reduction and has little environmental impact.The effluent quality meets the first level A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB18918-2002).This project demonstrates
ten grids; size of single set: L×B×H=52×41.5×7.25m; ⑨size of single grid: L×B×H=14.6×10×7.25 ①Design scale: 5,420 m3/h; ②sludge concentration: 3,800mg/L; ③sludge age of SBR: 18d; ④available water depth: 5m; ⑤total volume: 50,000 m3; ⑥sludge load of SBR: 0.11 kgBOD/(kgMLSS•d); ⑦total oxygen demand: 20,833 m3/h; ⑧size of structure: totally divided into six groups; ⑨size of single group: L×B×H=64×35×5m Advantages ①The settling time of high-efficiency settling tank is 8～12 times of that of conventional settling tank;② BOD solvent loading of biological aerated tank is high, 5～10 times of that of conventional biological treatment, so it covers a smaller area than that of conventional secondary biological treatment; ③the resistance of the process to the impact load is high, the treatment effect is good, and the effluent water quality is good[1]; ④biofilm formation is easy, and the starting is fast. ①The process flow is simple; ②the secondary settling tank is not needed, and the investment in civil
engineering and equipment is relatively lower; ③the tank is in idle state in most of the time, thus saving energy consumption.

Effect of Beam-Column Connection Fixity on Collapse Performance of a Six-Storey Special Concentrically Braced Frame Vahid Mohsenzadeh1,a* and Lydell Wiebe2,b 1Department of Civil Engineering, McMaster University, Hamilton, ON, Canada amohsenzv@mcmaster.ca, bwiebel@mcmaster.ca Keywords: Special concentrically braced frames, collapse performance, nonlinear time history analysis, connection fixity, multiple stripe analysis Abstract.
Wiebe, Large-Scale Testing of a Replaceable Connection for Concentrically Braced Frames, in 16th World Conference on Earthquake Engineering, 2017
Cheever, Collapse performance of low-ductility chevron braced steel frames in moderate seismic regions, AISC Engineering J., 46 (2009) 149–180

Fauzie Siswanto1,d 1Department of Civil and Environmental Engineering Universitas Gadjah Mada, Indonesia amuhamad.rusli.a@mail.ugm.ac.id, bali.murtopo@mail.ugm.ac.id, cimansatyarno@ugm.ac.id, dmfs_ugm@yahoo.com Keywords: castellated, rectangular opening, diagonal stiffener Abstract.
Boyer, Castellated Beams – New Developments, AISC National Engineering Conference, Omaha, 1964
Oliviera, Full height rectangular opening castellated steel beam partially encased in reinforced mortar, Procedia Engineering. 171 (2017) 176-184

Recycling of Niobium Slag by Disintegrator Milling KULU Priit1,a*, GOLJANDIN Dmitri1,b, KÜLAVIIR Jaan2,c, HAIN Tiina3,d, KIVISTO Mart4,e 1Department of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia 2Desintegraator Tootmise OÜ, Peterburi tee 71, 11415 Tallinn, Estonia 3Department of Civil Engineering and Architecture, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia 4NHP OÜ, Kurereha tee 3, 12015 Tallinn, Estonia apriit.kulu@taltech.ee, bdmitri.goljandin@taltech.ee, cjaan@desi.ee, dtiina.hain@taltech.ee, emart.k@neti.ee Keywords: niobium slag, disintegrator milling, pure Nb, calcium aluminate cement.
Production Engineering Archives. 2016, 2/11, 2–5

Little 1c 1 The University of Portsmouth, Department of Mechanical Engineering, Anglesea Road, Portsmouth PO1 3DJ, UK a carl.ross@ntlworld.com, b g_andriosopoulos@hotmail.co.uk, candrew.little@port.ac.uk Keywords: Plastic general instability, ring-stiffened cones, external pressure, finite elements.
[4] Ross, C T F and Hamer, H: Inelastic buckling of Ring-stiffened Circular Conical Shells under External Pressure, Proc Conf on Advances in Structural Engineering Computing, Civil-Comp Press Ltd, (1994), 109-113, Figure 5.
[6] Ross, C.T.F., Little, A.P.F. and Adeniyi, K.A: Plastic buckling of ring-stiffened conical shell under eternal hydrostatic pressure, Ocean Engineering, 32, (2005), pp. 21-36

New Method for Construction Land Prediction incorporating Genetic Algorithm and Support Vector Machines Luo Yiyong1,a, Zhang Liting1 and Zhang Hao2,b 1Yangtze College, East China University of Technology, Nan Chang, China 2College of Civil Engineering and Architecture, Zhejiang University of technology Hangzhou, China alshlyy82@163.com, bzhanghao@zjut.edu.cn Keywords: land use prediction; support vector machine; genetic algorithm; influence factors; accuracy analysis Abstract.
The reliability of this model in practical engineering has been then significantly improved
Scientific and Technological Management of Land and Resources, 2007(5):81-84 [4] Vapnik V Estimation of Dependencies Based on Empirical Data.Berlin:Springer-Verlag,1982 [5] Vapnik V The nature of statistical learning theory [M].New York: Springer,1995 [6] Xiong Jianxiu, Li Zuoyong.Sediment-carrying capacity forecasting based on support vector machine, Journal of Hydraulic Engineering, 2005(10):1171-1175 [7] Zhou Ming, Sun Shudong.

Modal Comparison and Bridge-type Optimization of Light-Rail Box Girder Bridges Jiajian Zhao1, 2, a, Demin Wei1, b and Zhehua Huang3, c 1School of Civil Engineering and Transportation, South China Univ. of Tech., Guangzhou, Guangdong, 510640, China 2College of Urban Construction, Zhongkai Univ. of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China 3 Guangdong Fenghe Rainforest Agricultural Investment & Development Co., Ltd., Conghua, Guangdong, 510925, China  azjjjames@163.com, bscutb04@scut.edu.cn, c36974862@qq.com Keywords: Modal Analysis; Bridge-Type Optimization; Mode Shape; Natural Frequency; Stiffness.
Acknowledgement This work is supported by National Natural Science Fund Project of China (50378040) and Scientific Research Fund Project of Zhongkai Univ. of Agriculture and Engineering (G3082927).

Zhou, etc: Journal of Architecture and Civil Engineering.
Pekoz: Journal of Structural Engineering.
Pekoz: Journal of Structural Engineering.

Dynamic tensile experiment of rock using underwater shock wave Woo-Jin Jung 1,a, Shiro Kubota 1 , Yuji Wada 1, Yuji Ogata 1, b , Hideki Shimada 2 and Kikuo Matsui 2 1 Research Center for Explosion and Safety, National Institute of Advanced Industrial Science and Technology, 16-1, Onogawa, Tsukuba, Ibaraki 305-8569, Japan 2 Department of Earth Resources Engineering, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan a jung-wj@aist.go.jp, byuji-ogata@aist.go.jp Key Words: Rock fragmentation, Dynamic loading, Underwater shock wave, Numerical simulation Abstract.
Introduction Explosive energy has been utilized for blasting, which is necessary for mining and quarrying operations and some civil engineering applications.
Bhandari: Engineering rock blasting operations (Balkema A.A., Rotterdam, Brookfield 1997) [3] K.

Research on Modification of Steady State Migration Test for Cementitious Materials YANG Jinbo1, a, ZHANG Peng2 and WU Lipeng3, 4 1 College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, P.
China 3 School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, P.
China 4 Key Laboratory of Roads and Railway Engineering Safety Control of Ministry of Education (Shijiazhuang Tiedao University), Shijiazhuang 050043, P.