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Experimental study on mechanical behaviors of damaged RC beams after reinforcement Congqi Li1,a, Wenjie Ge1,b , Dafu Cao1, Linglong Pan1 and Biyuan Wang1 1College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, China alicq@yzu.edu.cn, bjshagwj@163.com Keywords: reinforced concrete beams, damage evaluation, reinforcement, mechanical property.
Engineering Structures, 1998, 20(11): 1010~1019

Design of assembled post-tensioned prestressed reactive powder concrete wind turbine tower Xinwei Ma1,a, Sen Zeng1,b, Chonghai Dong1,c, Zhi Yu1,d, Guanqi Huang1,e 1Department of Civil Engineering, Harbin Institute of Technology at Weihai, Weihai,264209, China axinwei.ma@163.com, brichard-zen@163.com, cdchlucky@163.com, d408783572@qq.com, e574197520@qq.com Keywords: Reactive Powder Concrete, wind turbine tower, prestressed, design optimization Abstract.This paper proposes a new type of assembled post-tensioned prestressed reactive powder concrete (RPC) turbine tower structure.
The results show that in the same load conditions, the prestressed concrete tower saved 30% of the engineering cost than the steel tower and the fatigue life increased to 40~ 60 years.

References [1] Rendong Nan: Science in China Vol. 49(2006), p.129 [2] Ning Li, Jianxing Xue and Qiming Wang: Science Technology and Engineering Vol. 11(2012), p. 2760 (In Chinese)
[5] Qin Yang, Chengming Li: Journal of Information Technology in Civil Engineering and Architecture Vol.2(2010), p.61 (In Chinese)

Utilization of Buton Natural Rock Asphalt As Additive of Bitumen Binder in Hot Mix Asphalt Mixtures Gatot Rusbintardjo Department of Civil and Environmental Engineering, Faculty of Engineering Sultan Agung Islamic University (UNISSULA) Semarang - Indonesia gatotrsb@gmail.com Keywords: Buton-Natural Asphalt, Binder, Improve, Performance, HMA mixtures.

Computational Fluid Dynamics Simulation of Ventilation Effect of a Large Cross-section Cable Tunnel Junsheng Chen1,2,a, Shuzhuo Liu1,b, Yingguang Fang1,2,d, and Haihong Mo1,2,e 1Dept. of Civil Engineering，South China University of Technology, Guangzhou 510640 China; 2State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, China ajschen@scut.edu.cn, bshzhliu@scut.edu.cn, cfangyg@scnu.edu.cn, dcvhhmo@scut.edu.cn Keywords: Large cross-section cable tunnel; Ventilation effect; Computational fluid dynamics Abstract.
Convection heat transfer coefficient In this simulation, the computation was carried out according to a computing formula of a convection heat transfer coefficient generalized from engineering test data.

The Detection System of Air Quality for the Decorative Environment Based on DSP Xin Min Xiong1,a, Yan Hou2,b 1School of Electrical Engineering, Henan University of Technology, Zhengzhou, China, 450001 2School of Electrical Engineering, Henan University of Technology, Zhengzhou, China, 450001 axiongxinmin@163.com, bhouyanxy@163.com Keywords: decorative environment, air quality, detection system, DSP Abstract.
According to the requirement of the national standard [1], the indoor formaldehyde concentration in the civil building should be less than 0.08 mg/m3; ammonia gas concentration should be less than 0.2 mg/m3.

Research on Main Problems and Their Countermeasures on Chinese Small Hydropower Development Yanwei ZHAI 1, a, Changwu LIU 1, b and Xinxian ZHAI 2, c 1College of Water Resource & Hydropower, Sichuan University, Chengdu, 610200, China; 2School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo, 454000, China azhaiyw1992@qq.com, bxxssd@263.net, czhaixx1963@126.com Keywords: China; small hydropower station; status; technical reforming; running management Abstract: The constructions of small hydropower stations play an important role in improving local energy structure, development of corporations, agricultural and environmental melioration, and improving living standard of local people.
The local departments should be coordinated with water conservancy, civil engineering, power supply and banks on macroscopic, so that, the projects passed examination and approval can be start-up successfully and finished on time.

Temperature Dependent Mechanical Behavior of ODS Steels Massimo De Sanctis1,a, Alessandra Fava2,b*, Gianfranco Lovicu3,c, Roberto Montanari2,d, Maria Richetta2,e, Claudio Testani4,f, Alessandra Varone2,g 1Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino, 2, 56122 Pisa, Italy 2Department of Industrial Engineering, University of Rome “Tor Vergata”, Via del Politecnico, 1, 00133 Rome, Italy 3Nuovo Pignone Tecnologie Srl, BHGE, Via Felice Matteucci, 2, 50127 Florence, Italy 4CALEF-ENEA CR Casaccia, Via Anguillarese, 301, 00123 Santa Maria di Galeria, Rome, Italy am.desanctis@ing.unipi.it, balessandra.fava@uniroma2.it, clovicu.gf@gmail.com, droberto.montanari@uniroma2.it, erichetta@uniroma2.it, fc.testani@libero.it, galessandra.varone@uniroma2.it Keywords: ODS steel, nanostructure, low-energy mechanical alloying, mechanical properties, strengthening mechanisms.

Topology Optimization Design of Pre-stressed Plane Entity Steel Structure with the constrains of Stress and Displacement Li YAO Yun-xia GAO Hai-jun YANG Hebei Institute of Architecture and Civil Engineering, Zhangjiakou Hebei China yaoli_zhjk@163.com,wljgyx@163.com,yang_hj228@sina.com Key words: Prestressed steel structure; Topology optimization; Cable pretension force optimization; Full stress method; Evolutionary structural optimization Abstract: For the prestressed plane entitiy steel structure topology optimization design which design variables include the cable pretension value, unit size and the structural topology, the optimized mathematical model which objective function is the minimum structural weight is established with consideration of the constrains of stress and displacement.
Engineering Structure Optimization [M].Beijing: China Water power Press,1983.

Confinement of Masonry Columns with PBO and Basalt FRCM Composites Luciano OMBRES1,a*, Antonio IORFIDA2,b and Salvatore VERRE1,c 1Department of Civil Engineering, University of Calabria, Via P.Bucci Cubo 39B, 87036 Arcavacata di Rende, Cosenza, Italy, luciano.ombres@unical.it, 2Department of Mechanical, Energy and Management Engineering, University of Calabria, Via P.