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Research on the Repair Quality of Crack in Concrete Structures by Stress Waves Keng-Tsang Hsu1,a, Ji-Heng Cai2,b Wen-Ning Yang2, c Xing-Run Cai2,d* 1Associate Professor, Department of Civil and Construction Engineering, Chaoyang University of Technology, Taichung, Taiwan, R.O.C. 2Master Student, Department of Civil and Construction Engineering, Chaoyang University of Technology, Taichung, Taiwan, R.O.C.
Concrete is a building material commonly used in engineering, such as dams, bridges, retaining walls, houses, etc..
In actually there is no effective application of engineering crack repair detection and evaluation and it is not suitable to use destructive methods (such as core ) to know the repair status in terms of evaluation methods.
After more than ten years of research and improvement, this method can be used in the safety detection and evaluation of various engineering problems.

So, the PFC3D is able to precisely simulate the combined deformation of cantilever beam, and this work has special reference to engineering calculations and designs when PFC is applied to model the mechanical behaviors of continuum materials.
Introduction Euler-Bernoulli cantilever beam is a universal construction unit or structure style in civil engineering, where the beams in most cases are subjected to not only single transverse load but also the others such as axial load, bending moment and twisting moment.
It is adducible that the applications of DEM in geotechnics have become almost systematic[6], but fewer investigations are performed on the mechanical properties of continuum materials employed in civil engineering.
l PFC3D is able to precisely simulate the combined deformation of cantilever beam, and this work has special reference to engineering calculation.
Magnier: Electronic Journal of Geotechnical Engineering, Bouquet(08), 2008, p. 1-44.

Finite Element Analysis on the Resistance Capability of a New Precast Concrete Tube Column Hongyan Ding1, 2, 3, a, Jinghu Nie2, b, Puyang Zhang1, 3, c and Chao He2 1 State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin, 300072, China 2School of Civil Engineering, Tianjin University, Tianjin, 300072, China 3 Key Laboratory of Coast Civil Structure Safety, Ministry of Education, Tianjin University, Tianjin, 300072, China adhy_td@163.com, b121337475@qq.com, czpy_td@163.com Keywords: Precast Concrete Tube Column, Finite Element Analysis, Bearing Capacity, Beam - Column Joint, Seismic Performance.
Displacement - load hysteresis curve of the beam-column joint is relatively full under cyclic load, and the slope of skeleton curve decreases slowly, which provides an important basis for engineering applications.
And the seismic performance of precast concrete beam-column joint was studied combined with actual engineering.
Finite element analysis of the seismic performance of beam-column joint Fig.7 Node type and meshing Fig.8 Loading system Based on the structure dimensions and loads of an engineering, precast concrete tube column D600t80 is adopted.

In civil engineering field, huge amount of structural health monitoring work is required throughout the service life of the structures.
According to US Federal reserve board, the failure of civil infrastructure systems to perform at the expected level may cause a reduction in the national gross domestic product (GDP) by 1% [1].
Deformation and Fracture Mechanics of Engineering Materials, J.

Availability of Professional Construction Management for the Administration of Public Business Chao-Chung Cheng1, a, Qi Qiu1,b and Guan-Siou You2,c 1 School of Economics & Management, Beijing Jiaotong University 2 Civil Engineering Department, National Ilan University asolo513@hotmail.com, bqiuqi1975@126.com, cugsh0712@livemail.tw Keywords: River Dredging , Public Business Administration (PBA), Professional Construction Management (PCM).
The primary functions of PCM include acting as an agent to the owner, integrating engineering teams, reducing construction costs, shortening the construction period, and eliminating antagonism between participants in the process.
Niou-Dou Bridge Langyang River Tayal Bridge Fig. 1 Dredging area of Ilan project, where the Qingshui River joins the Langyang River Jian-Shih Bridge Jia-Sin Bridge Fig. 2 River section of Hsinchu project between the Jia-Sin Bridge and the Jian-Shih Bridge Fig. 3 Structure of Ilan project Fig. 4 Structure of Hsinchu project The structure of the Ilan project was divided into two layers (Fig. 3); the Civil Affairs Department served as the PBA handling unit in the upper layer, and the lower layer included the three projects of sand mining, security, and transportation detours.
References [1] Jian, Cang-Liang: Regional Civil Service Development Institute, Directorate-General of Personnel Administration, Executive Yuan, 38th PBA training course handout, PBA sand mining management by Ilan County Government,（2006） [2] Hsinchu County Government, PCM river dredging project (1st stage) with PBA management, Research of Taiwan River Dredging by Public Property Conduct Management,（2009） [3] Hsiao-Hsuan Lee: Contract Performance Checking and Evaluation Model for PCM Projects, Department of Construction Engineering, National Taiwan University of Science and Technology, (2004)

Study on Mechanical Performances of Steel Truss Reinforced Concrete Transfer Beam Yi Wu1,a, Chun Yang2,3,b, Guang-xing Li4,c, Chun-mei Zhang1,d 1School of Civil Engineering of Guangzhou University, Guangzhou 510006, China 2School of Civil Engineering and transportation of South China University of Technology, Guangzhou 510641, China 3State Key Laboratory of Subtropical Building Science, Guangzhou 510641, China 4 Guangzhou City Construction & Development Design Institute Co., Ltd., Guangzhou 510620, Guangzhou, China aemail:wya2103@163.com, bemail:chyang@scut.edu.cn, cemail: lg_x @sina.com, demail:zhangchunmeik@163.com Keywords: steel truss reinforced concrete; transfer beam; experimental study; mechanical performances Abstract：Experimental researches of one 1:6 scale steel truss reinforced concrete (STRC) transfer beam were carried out to investigate mechanical performances of a transfer beam under vertical loads in an actual tall building.
China Civil Engineering Journal, 2001, 33(5):1-11.

Non-linear Numerical Analysis of Unreinforced Masonry Column and Masonry Column Reinforced by FRP Wrapping Aneta Maroušková1,a * 1 Czech Technical University in Prague, Faculty of Civil Engineering, Thákurova 7, Prague 6, 166 29, Czech Republic a aneta.marouskova@fsv.cvut.cz Keywords: Numeric Analysis; Masonry; Reinforcement; FRP Materials, Finite Element Method.
The experimental program is part of a research project [1], which is being carried out at the Faculty of Civil Engineering, CTU in Prague.
The Analysis of the Effect of Strengthening Compressed Masonry Columns with Carbon Fabric, in proc.: The 7th International Conference on FRP Composites in Civil Engineering (CICE 2014), International Institute for FRP in Construction, Vancouver

Analysis of Wind-induced Vibration Control of Long-span Space Structure Zhiqiang Zhang 1, 2,a, Yan Chen 2,b , Guanxing Su 3,c and Xinggang Zhu 4,d 1Key Laboratory of Concrete and Presressed Concrete Structure of Ministry of Education, Southeast University ,Nanjing ,210096, China 2College of Civil Engineering, Southeast University ,Nanjing ,210096, China 3Jiangsu Academy of Building Research, Nanjing , 210001, China 4Beijing Institute of Architectural Design, Beijing , 100045, China azzq1969@seu.edu.cn, bcy031331604@163.com, csgx_25@163.com, dxgz@163.com Key words: Long-span structure; 3-D time history of fluctuating wind pressure; Response of wind-induced vibration; Tuned Mass Damper; Wind-induced vibration control.
TMD has many advantages ,such as simple and reliable, efficient and low cost, so TMD is widely applied to the high-rise structure and civil engineering structure vibration control, especially wind-resistant design of high buildings, television towers and the bridge structures.
[2] V.Kolousek, Wind effects on civil engineering Structures [M].

Laboratory determination of consistency of grouting mixes Rostislav Drochytka1, a, Ester Venhodová2,b and Vít Černý3,c 1 Brno University of Technology, Faculty of Civil Engineering, Institute of Technology of Building Materials and Components, Veveří 331/95, 602 00 Brno, Czech Republic 2 Brno University of Technology, Faculty of Civil Engineering, Institute of Technology of Building Materials and Components, Veveří 331/95, 602 00 Brno, Czech Republic 3 Brno University of Technology, Faculty of Civil Engineering, Institute of Technology of Building Materials and Components, Veveří 331/95, 602 00 Brno, Czech Republic adrochytka.r@fce.vutbr.cz, bvenhodova.e@fce.vutbr.cz, ccerny.v@fce.vutbr.cz Keywords: Energy by-product, rehabilitation, embankment dam, grouting.

DEM generation and accuracy assessment using ZY-3 stereo image pairs CAI Guoyin1, 2,a, HUAN Jie1 , LIU Yang1, 2 and DU Mingyi1, 2 1Department of Geographical Information System, School of Geomatics and Urban Information, Beijing University of Civil Engineering and Architecture,Beijing 100044, P.R.
China 2 The Key Laboratory for Urban Geomatics of National Administration of Surveying, Mapping and Geoinformation, Beijing University of Civil Engineering and Architecture, Beijing, China acgyin@bucea.edu.cn Keywords: DEM, Accuracy Assessment, Stereo images, ZY-3.
Z121106002512025) and its matching supporting program by Beijing University of Civil Engineering and Architecture (No. 21221214116).