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Research On Dynamic Behaviour Of Wind Tower Under Ambient Excitation Based On DASP Xiang Liu1, a , Zhenning Gao1, b and Jiangtao Kong1, c 1.Architecture and Civil Engineering School, Inner Mongolia University of Science and Technology, Baotou 014010, China aliuxiangwd@126.com,bgaozhn_153@163.com, ckjtao614@163.com Keywords: Wind Tower, Environmental Incentives, Acceleration, Modal Analysis Abstract.
Over the past decade, as it has features such as it won't affect the normal use ,it only need to determine the dynamic response of structure and it need not expencive excitation set,the research of Modal Analysis of vibration caused by Ambient Excitation has been a popular subject in recognition system of civil engineering[2].
In this paper, the vane wheel is three-bladed, the operating frequency of wind wheel and 3x operating frequency is the main driving source of resonance, on the basis of engineering experience, the natural frequency of tower should keep away about 10% of the two frequency[4].
Vol. 42 (2009), p. 31 In Chinese [4] Chong REN, Wei ZHANG and Fuquan ZHANG: Mechanical & Electrical Engineering Technology.

Effects of Styrene-acrylate Emulsion on the Damping Ability and Hydration of Cement Matrix Tie-Jun Liu 1,a, Jin-Ping Ou 2,b 1 School of Shenzhen graduate school of HIT, Shenzhen, 518055, PR China 2 School of civil engineering, Harbin institute of technology, Harbin, 150090, PR China a liutiejun@hit.edu.cn, boujinping@hit.edu.cn Keywords: Styrene-acrylate emulsion; loss tangent; storage modulus; cement mortar; hydrate reaction Abstract.
Guan: State-of-the Art of Smart Vibration Control of Civil Engineering Structures, Earthquake engineering and engineering vibration, China, 2 (1999), pp. 21-28

Microstructure and Finite Element Analysis of Recycled Aggregate Concrete Haifeng Yang1,2,a, Zhiheng Deng1, 2,b, Yuefeng Hu1, 2,c 1 College of Civil and Architecture Engineering,Guangxi unniversty,Nanning,530004,China; 2 Key Laboratory of Disaster Prevention and Engineering Safety of Guangxi, Nanning, 530004,China ayhfgxu@yahoo.com.cn, bdengzh@gxu.edu.cn, chyf12262008@163.com Keywords: RAC; Microstructure; Interface structure; Finite element analysis Abstract.
Acknowledgements This work was financially support by the system subject of Key Laboratory of Disaster Prevention and Engineering Safety of Guangxi (2013ZDX01).
Journal of Materials in Civil Engineering.

The field of civil engineering is one of the greatest consumers of non-renewable natural raw-material (sand, chalk, drinking water) and it doesn’t apply environmentally friendly techniques as it is the case of the production of soil-cement brick [9].
It can be noticed that the soil-cement technique is little known and applied in the field of civil engineering.
Engineering Vol. 2 (2012), p. 838
Callister Jr.: Materials Science and Engineering: An Introduction.

A Novel Approach to Characterize the Quantity and Distribution of Microorganisms in Microbial Self-Healing Cementitious Materials Qinwen Chen1,2,3,a*, Chunxiang Qian1,2,3,b 1College of Materials Science and Engineering, Southeast University, Nanjing 211189, China 2Research Institute of Green Construction Materials, Southeast University, Nanjing 211189, China 3Key Laboratory of Microbial Technology in Building Materials Industry, Southeast University, Nanjing 211189, China achenqinwen9693@163.com, bqiancx@seu.edu.cn Keywords: Microbial cementitious materials; Extraction of microorganisms; Distribution characteristics of microorganisms Abstract.
Introduction In modern society, cementitious materials have become the most principle building materials in the field of civil engineering, which are applied in many fields such as construction, transportation, bridge, water conservancy, underground engineering, etc.
In the field of civil engineering materials, generous scholars focused on exploring the applicable microorganisms in cementitious materials, the mechanism and effect of crack self-healing caused by microorganisms [11].

A Global Perspective on the Use of Mine Tailings in Concrete: Developments and Trends through Bibliometric Analysis Alaa Maali1,a, Eltayeb Mohamedelhassan1,b and Ahmed Bediwy2,c* 1Department of Civil Engineering, Lakehead University, Thunder Bay, ON P7B 5E1, Canada 2Department of Civil and Environmental Engineering, UAE University, PO Box 15551, Al Ain, Abu Dhabi, United Arab Emirates aamaali@lakeheadu.ca, bemohamed@lakeheadu.ca, c*abediwy@uaeu.ac.ae Keywords: mine tailings, concrete, aggregates, cement, sustainability, durability, bibliometric analysis.
The second cluster, colored blue, contains 19 keywords that relate to the design, performance, and optimization of materials and processes in mining and geotechnical engineering, with particular attention to underground operations.
Gagg, Cement and concrete as an engineering material: An historic appraisal and case study analysis, Eng Fail Anal 40 (2014) 114–140. https://doi.org/10.1016/j.engfailanal.2014.02.004

Test research on the behaviors of steel bar truss and concrete superimposed floor slabs Yongxing Li1,a, Lu Jiang2,b, Zhiqiang Yu2,c, Jie Li3,d , Yongwei Li 4,e 1School of Civil Engineering, Xi’an University of Arch. & Tech.
Shanghai, 201900, China 3College of Civil Engineering, Tongji University.
Shanghai, 200092, China 4Shaanxi Construction Engineering Group Construction Machinery Co.
This kind of floor has many advantages, such as rapid construction speed, good comprehensive economical benefit, no need to use suspended ceiling and to make fire protection and anticorrosion, energy conservation and environmental protection.It is worth popularizing and appling in practical engineering.

Finite Element Analysis on Behavior of the Joint with Steel Tube Confined Concrete (STCC) Column to Reinforced Concrete Beam Wenda Wang1,2,a, Zhifeng Guo1,2,b, and Yanli Shi1,2,c 1Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou, 730050, China; 2College of Civil Engineering, Lanzhou University of Technology, Lanzhou, 730050, China awangwd@lut.cn, bceguozf@gmail.com, cceshiyl@163.com Keywords: steel tube confined concrete (STCC) column, reinforced concrete (RC) beam, composite joint, finite element model(FEM), numerical simulation Abstract.
Design approaches of this type composite joint should be proposed based on further research to guide practical engineering.
Liu: Engineering Mechanics Vol. 25(2008), p.143-148.

Soil Nailing reliability Optimization Design of Foundation Pit Based on Response Surface Method Cao Jing1,a, Liu Tian1,b, Liu Haiming1,c 1Faculty of Civil Engineering and Mechanics, Kunming University of Science and technology, Kunming 650500, China acjlb117@sina.com, b819287562@qq.com, chmliu@kmust.edu.cn Corresponding author: Cao Jing, doctor, professor, E-mail: cjlb117@sina.com.
Through an engineering case analysis, the feasibility and effectiveness of this method are verified.
The study of the reliability theory starts late in China, and fails to get a good application in the geotechnical engineering.
There are many of reliability analysis methods currently, but most of them are inconvenient for engineering and technical personnel to use [2].
Journal of civil engineering 2011,44(3):113-119

Research of Digital Measurement and Control Technology for the Inverter of Power Supply Huanqi Tao1,a, Yuchuan Wu2,b 1College of Electronics and Information Engineering Wuhan Textile University Wuhan, China 2College of Electronics and Information Engineering Wuhan Textile University Wuhan, China ataohq@163.com, bwychuan007@qq.com Keywords: power conversion.
Digitalization. measurement and control technology. electrical engineering. application about solar energy.
Otherwise, the matrix must increase the number of solar modules, increasing the area occupied by matrix, thus greatly increasing the solar photovoltaic power plant investment in equipment and civil charges.
Control of digital power conversion technology research for the discipline of electrical engineering and the development of opening up new research directions.
Traditional electrical engineering, are concentrated in the power system generation, distribution and electricity and so-called high power applications.