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Current Situation of Research on the Application of the Piezoelectric Energy Harvesting Circuit Shisha ZHU 1, a, Xuepeng QIAN 1, b and Youhang Zhou 1, c, 1School of Mechanical Engineering, Xiangtan University, Xiangtan, China a zssxtdx@xtu.edu.cn b845959041@qq.com czhouyouhang@xtu.edu.cn Keywords: piezoelectric energy harvesting technology circuit energy harvesting efficiency Abstract: In recent years, with the development of smart materials as well as smart structure technologies, and the research on piezoelectric energy harvesting technology deepens, the low power application circuit along with highly-efficient storage circuit optimization and design has become one of the essential parts in this field.
References [1] K X Wei, G Meng, W M Zhang: Journal of Intelligent Material Systems and Structures , Vol. 18(11) (2007), p.1165 [2] Z Q Chen: Journal of Architecture and Civil Engineering, Vol. 26 (2009) , p.9.In Chinese [3] Choi S B, Seong M S, Kim K S.: Journal of Automobile Engineering, Vol. 223(2009), p.459 [4] Nakano K, Suda Y, Nakadai S.: Journal of Sound and Vibration, Vol.260 (2003), p. 213 [5] Adhikari S, Friswell M I, Inman D J.
,Vol.128(2005),p.177 [19] Lefeuvre E, Badel A, Richard C, et al.: Sensors Actuators A., Vol.126(2006),p. 405 [20] Lefeuvre E, Adrien BADEL, et al.: Dtip of MEMS, Vol. 4(2006), p.26 [21] Li-ya Zhu, Ren-wen Chen: Optics and Precision Engineering, Vol.19 (2011), p.1327 [22]Geffrey K.

Law of the surface sediment transport and maintenance methods of Beihai Silver Beach Xin Liu1,a, Yongjun Huang1,b and Fuwan Gan1,2,c* 1College of Civil Engineering and Architecture, Guangxi University, Nanning,530004, China 2Guangxi Key Laboratory of Disaster Prevention and Engineering Safety，Guangxi University, Nanning,530004, China alxwhdx@126.com, b852240184@qq.com, cgxugfw@126.com Keywords: Beihai Silver Beach, Numerical simulation, Beach erosion, Law of sediment transport, Maintenance methods.
Silver Beach sediment transport simulation Simulation method.MIKE.is the product of the Danish institute of water resources and water environment.This software is currently the world’s leading software,which has been proven by practical engineering most times and has been widely accepted by the water resources researchers.
This issue adopts the method of MIKE21 model.MIKE21 is one of the four big software of MIKE,which is a professional engineering software packages of two-dimensional free surface flow simulation system.It’s mainly used in surface water flow,waves,water environment changes,sediment transport,etc of estuaries,rivers,sea,reservoirs and so on.The software includes two-dimension hydrodynamic model,the wave model,the water migration model,the rich nutrition model and the sediment transport model.MIKE21 incorporate GIS technology into itself so it’s convenient for data collection and processing.What’s more,it contains advanced numerical methods,special graphic tools and important regional variable subdivision mesh encryption calculation processing technology.The detailed introduction of MIKE21 see ref[5].

Experimental Study on the Seismic Performance of Macro-Synthetic Fiber- Reinforced Concrete Ductile Columns Hua Ma1, a, Honghuan Wang1,b, Zhenbao Li1,c Xinyu Sun1 and Xuewei Zhang1 1Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing, 100124, China amahua@bjut.edu.cn, bwanghonghuan@emails.bjut.edu.cn, clizb@bjut.edu.cn Keywords: macro-synthetic fiber-reinforced concrete; ductile column; seismic performance Abstract.
The idea of practical engineering design and application of this kind of energy absorption system is proposed.
References [1] Zhenbao Li, Wenjuan Wang and Lei Wang: Journal of Building Structure Vol.36 No.3 (2006), p. 25-27 (In Chinese) [2] Weibo Yan, Zhengbao Li, Hua Ma and Xiyuan Zhou: Journal of Beijing University of Technology Vol.33 No.3 (2007), p. 283-288 (In Chinese) [3] Xiaomin Hao, Hua Ma, Jie Chen and Qingzi Ge: Tenth National Modern Structural Engineering Conference (2010) (In Chinese) [4] Weichen Xue, Bin Cheng: HENNAN Science Vol. 20 No.6 (2002), p. 697-701 (In Chinese) [5] Zongcai Deng, Jianhui Li, and Zhi Fu: Journal of Highway and Transportation Research and Development Vol. 22 No.7 (2005), p. 45-48 (In Chinese) [6] Zongcai Deng, Jianhui Li, Xianwei Wang, Chunguo Liu and Jianjun Zhang: New Building Materials No.7 (2006), p. 8-10 (In Chinese) [7] Zongcai Deng, Jianhui Li and Zuohu Wang: Journal of Beijing University of Yechnology Vol.33 No.4 (2007), p. 388-392 (In Chinese) [5] Zhangzhao Gu, Yaonian Zhu and Zhengping Wang: Shanghai Coustruction Science and Technology No.3
(1997), p. 40-41 (In Chinese) [9] Shuting Liang, Dajun Ding and Jianjun Zhao: Journal of Nanjing Architectural and Civil Engineering Institute Vol.31 No.4 (1994), p. 22-29 (In Chinese) [10] JGJ 101-96 Specificating of Testing Methods for Earthquake Resistant Building (1997) (In Chinese)

The Study on Thermal Stability of Hg and S Element in Semi-dry Flue Gas Desulfurization Ash Yu SHEN1,a, Lisha YANG2,b, Chaojie LI1,c, Chuanmin CHEN2,d, Songtao LIU2,e 1Guizhou Electric Power Testing &research Institute No.86, Jie Fang Road Guiyang Guizhou, China,2North China Electric Power University environmental science and engineering No.619,Yong Hua Street Baoding Hebe,China ashenyu727@sina.com,byanglishayls@163.com,clichaojie05@163.com, dchuanminchen@gmail.com(corresponding author),etaonyliu@163.com Keywords: Desulfurization ash; Thermal stability; Autoclaved brick; S and Hg releasing Abstract.
In recent years, an important area of utilization of semi-dry flue gas desulfurization ash is in civil engineering[7-9].
//Technical Series-Complete National flue gas desulfurization technology engineering analysis and application, (2001):116-119
Power System Engineering, 2(2002):49-50

PYLYPENKO2 1PhD in Engineering, Associate Professor, associate professor of the Department of Building Constructions, Odessa State Academy of Civil Engineering and Architecture, 4 Didrihsona Street, 65038 Odessa, Ukraine 2PhD in Engineering, Associate Professor, Associate Professor of the Department of Physical Training, Academy of the State Penitentiary Service, 1 b Kozatska Street, 14037 Chernihiv, Ukraine drapalukmarina@meta.ua Keywords: bio-corrosion, biodeterioration, concrete continuity, modified cement matrix, porosity, strength.
The basis for the development and decision-making on measures to preserve and restore the continuity of damaged elements of the sewers are the results of engineering analysis and expert evaluation of the behavior of a building of a specific structural system after a long term of using, as well as statistical data and damage classification in order to determine their danger and prevention.

ZHANG1, b, Yansheng HUANG2, c 1School of Engineering and Information Technology, University of New South Wales, Canberra, ACT 2600, Australia 2School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, 510641, China aYuguo.Yu@student.adfa.edu.au, by.zhang@adfa.edu.au, ccvyhuang@scut.edu.cn Keywords: Bonding strength; Constitutive model; Finite element analysis; FRP; Interface Abstract.
References [1] Xinzheng Lu, Lieping Ye, Jinguang Teng et al., Meso-scale finite element analysis of FRP-to-concrete bond behavior, Engineering Mechanics, 23 (2006): 74-82
Seracino, Zhishen WU, Full-range behavior of FRP-to-concrete bonded joints, Engineering Structures, 26 (2004), 553-564.

Aleknevicius, The effect of temperature on the formation of the hydrated calcium aluminate cement structure, Procedia engineering. 57 (2013) 99-106
Baiburin, Technology of the early age concrete loading, Procedia Engineering. 150 (2016) 2157-2162
Coussy Strenght growth as chemo – plastic hardening in early age concrete, ASCE journal of engineering mechanics. 122 (1996) 1123-1132
Vasil'eva, The phase composition and properties of aluminate cements after early loading, Magazine of Civil Engineering. 7 (2017) 114-122

Elasto-Plastic Singular Behavior at an Interface Edge Jin-Quan Xu1, Yoshiharu Mutoh2 , Lie-Dong Fu2 1Dept. of Mechanics, School of Civil Engineering and Mechanics, Shanghai Jiaotong University 1954 Huashan Road, Shanghai 200030, P.R.China, jqxu@sjtu.edu.cn 2 Dept. of Mechanical Engineering, Nagaoka University of Technology 1603-1 Kamitomioka, Nagaoka, Niigata, 940-2188, Japan, mutoh@mech.nagaokaut.ac.jp Keywords: Stress Singularity, Interface Edge, Elasto-plasticity, Finite Element Method Abstract.
Introduction Structures composed of bonded dissimilar materials have a wide application in engineering.
Wang: Engineering Fracture Mechanics, 37(1990), pp.527-538

Research on the Anti-sulfate and Chlorine Corrosion Property of Concrete Jianmin Du1,2,a; Ruimin Jiao1,2,b; Yingshu Yuan1,2,c ; Xiaomeng Zhu3,d 1State key laboratory for geomechanics and deep underground engineering, 2School of Mechanics & Civil Engineering, China University of Mining & Technology, Xuzhou Jiangsu, 221116, China, 3School of Management Engineering, Shandong Jianzhu University, Jinan Shandong, 250101, China adjm1975@cumt.edu.cn, brmjlove.123@163.com, cysyuan@cumt.edu.cn, dzhuxm0312@yahoo.com.cn Keywords: Durability of Concrete; Sulfate corrosion; Sodium chloride; Relative dynamic modulus Abstract.
In recent years more and more sulfate corrosion problems were appeared in projects, some of which have endangered the safety of projects seriously with the development of engineering construction.

Progressive Collapse Evaluation for Historic Building Structures LIN Fenga , WANG Ying b, GU Xianglin c and ZHAO Xinyuand Department of Building Engineering, Tongji University, Shanghai, China a Lin_feng@tongji.edu.cn, bwangying_eer@163.com, cgxl@tongji.edu.cn, d330990421@qq.com Abstract Important historic buildings may be subjected to accidental loads during their service life.
Architectural and Structural Overview The Bund 18 building (Fig. 2), built in 1923, was designed by Palmer & Turner Architects and Surveyors and constructed by Trollope & Colls, Limited Engineering Department.
"Code for design of civil air defence basement."
[8] Seismic Evaluation Committee on Construction Engineering of Tongji University (SECoCETJ) (2003).
Structural Engineers, 25(5), 142-148.