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Army Corps of Engineers’ River Analysis System (HEC-RAS) is software that allows performing one-dimensional steady and unsteady flow river hydraulics calculations, sediment transport-mobile bed modeling, and water temperature analysis.
The HEC-RAS software is a significant advancement over HEC-2 in terms of both hydraulic engineering and computer science.
This software is a product of the Corps’ Civil Works System Wide Water Resources Research Program (SWWRP).
The HEC-RAS software was developed at the Hydrologic Engineering Center (HEC), which is a division of the Institute for Water Resources (IWR), U.S.
Army Corps of Engineers [5].

Fracture Parameters of Concrete from Drill-Core Specimens from Objects at the Transgas Gas Control Center Tomáš MAJDA1,a, Petr DANĚK1,b, Petr FRANTÍK1,c, Hana ŠIMONOVÁ1,d, Pavla ROVNANÍKOVÁ1,e and Zbyněk KERŠNER1,f* 1Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic a157541@vutbr.cz, bpetr.danek@vutbr.cz, ckitnarf@centrum.cz, dsimonova.h@vutbr.cz, erovnanikova.p@fce.vutbr.cz, fkersner.z@fce.vutbr.cz Keywords: Concrete, Drill-Core Specimen, Chevron Notch, Fracture Test, Load–Displacement Diagram.
The taking of drill-cores for the purpose of obtaining values for certain mechanical fracture parameters was carried out by the staff of the Institute of Building Testing at the Faculty of Civil Engineering, Brno University of Technology (FCE BUT).
In: Proceedings of the 12th Central European Congress on Concrete Engineering ‒ Innovative materials and technologies for concrete structures.
Procedia Engineering, Structural and Physical Aspects of Construction Engineering, Vol. 190, pp. 126–133

Study on a Flutter Stability Control Measure of Fabricated Steel Truss Bridge Zhang Chenglong 1, a *, Wang Qiang 1,b, He Xiaohui 1,c and Bian Enjiang1,d, He Jie1,e 1 College of Field Engineering, PLA Univ. of Sci.
Proceedings of bridges into 21st century, Hong Kong: H K Institution of Engineering, 1995, pp. 729-737
[3] State Key Laboratory for Disaster Reduction in Civil Engineering of Tongji University, Wind-resistant performance investigation for Runyang Bridge, Shanghai, State Key Laboratory for Disaster Reduction in Civil Engineering of Tongji University, 2003
Coupling effects of degrees of freedom in flutter instability of long-span bridges, Shanghai, Department of Bridge Engineering, Tongji University, 2002

The Tensile Force Test Model of Vertical Prestressing Finishing Rolling Rebar in Box Girder Xu Xiangfeng1,2 a 1Civil Enigineering Department of Shandong Jiaotong University, Jinan 250023, China 2 School of civil engineering and architecture, Changsha university of science &technology,hunan ,Changsha 410114,China a404943332@qq.com Key words: box girder; finishing twisted steel; vertical prestressing; rayleigh law; model test; frequency Abstract: Vertical prestressing tendons finishing twisted steel is widely used in the concrete box girder, but ,it is hard to effectively control the loss of anchor stress.
Acknowledgemen This work was financially supported by Changsha university of science &technology bridge engineering key laboratory open fund (10KA16)< Bearing performance assessment method of single box double room PC box girder after cracking > References [1] Fang Zhi, Wang Jian.
China civil engineering journal, 2006, 39(5): 78-84
Engineering Mechanics, 2010, 27(9): 168-174
Highway Engineering, 2007, 32(6): 19-22

Numerical Analysis of Slot Stability during the Supper-deep Diaphragm Wall Construction Baozhu Yang1,a, Shuchao Zhang2,b and Kaiyun Luan3,c 1School of Civil engineering, Tianjin Chenjian University, Tianjin 300384, China 2Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment, TCU, Tianjin 300384, China 3Tianjin Huasha Artisans Architectural Design Co.
Liu, Chinese Journal of Geotechnical Engineering, Vol. 21 3 (1999) 338-342
Xia, China Civil Engineering Journal, Vol. 33 1 (2000) 73-76
Fukui, Deformation and failure of slurry trench in reclaimed soft clay: numerical analysis, in: Proceedings of the 12th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, Singapore: World Scientific Publishing, (2003) 825-828

Properties of Recycled Aggregate Concrete Filled Steel Tubes Yijie Huang1, a, Huangsheng Sun2,b 1 Department of Civil Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266590, PR China 2 Department of Civil Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266590, PR China a302huangyijie@163.com, b651691497@qq.com Keywords: Recycled Aggregate Concrete, Steel Tube, Mechanical Properties, Recycled Aggregate Concrete Filled Steel Tubes.
It can be also concluded that the modified creep model also has the best accuracy in predicting the creep of RACFST with the maximum deviation within 8%, which can be applied in the analysis of long-term responses for such member in the practical engineering．
Conf. on Mechanic Automation and Control Engineering, Wuhan, China, 26-28 June 2010
Yang, “ Mechanical properties of CFST under pure bending moment”, Proceedings of the Fifteenth National Conference on Structural Engineering (No.Ⅱ), Jiaozuo, China, 16-18 Oct. 2006.

Mechanical calculation for collapse mechanism of surrounding rock on shallow tunnel Ying Peng1 , Junsheng Yang2 , Yanhua Shen1 , Jianhua Liu1,a 1School of Civil Engineering,Hunan University of Technology, Zhuzhou 412007, China 2School of Civil and Architectural Engineering, Central South University, Changsha 410075, China Corresponding author, Jianhua Liu, aemail:liujh070601@sohu.com Keywords: shallow tunnel, surrounding rock pressure, limit analysis Abstract.
Because of the model test uses the real material in reality, it can reflect the spatial relationship between geological structure and engineering structure at the basic principle in similar conditions, so it more intuitively reflects the overall characteristics of geotechnical engineering mechanics, deformation and failure characteristics.
Fig.1 Collapse mechanisms of shallow tunnel in cohesive material Fig.2 Collapse mechanism of shallow tunnel in cohesionless material Formulating a suitable structure of shallow tunnel surrounding rock failure mode is the key to calculate the surrounding rock pressure by upper bound method, usually through the analysis of engineering example, model test or numerical calculation methods.

The European Community countries and the USA produce now high-strength steels with the yield strength value of 355 to 590 MPa, so the structural engineers in these countries can use the aforesaid high-strength steels for structural design works.
In the process of design works, the structural engineers should thoroughly choose the steel strength for structural elements working under different types of loading.
Industrial and civil engineering.2013, №7, pp.23-28
Industrial and civil engineering. 2011, № 6, p.p.66-70
Internet engineering. 2005. 176 p

A Self-centering Seismic Design for Bridge with Pile-cap Foundation HaoLin Yang1,a, XinZhi Dang1,b,WanCheng Yuan1,c, DeQin Song1,d 1State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, China a3252403@163.com, bleodangxz@163.com, cyuan@tongji.edu.cn, dsongdeqin1988@163.com Keywords: seismic design; pile-cap; self-centering; rocking Abstract.
There are two main aspects in bridge engineering that the rocking technique is introduced in at present.
SLDRCE09-B-08, Kwang-Hua Fund for College of Civil Engineering, Tongji University, and the National Natural Science Foundation of China under Grants No. 50978194, 90915011 and 51278376.
References [1] G.W.Housner, The behavior of inverted pendulum structures during earthquakes, Bulletin of the Seismological Society of America, Vol. 53(1963):403-417 [2] M.P.Enull, K.Kawashima, Rocking isolation of a typical bridge pier on spread foundation, Journal of Earthquake Engineering, Vol. 9, Special Issue 2(2005):395-414 [3] C.T.
Cheng, Shaking table tests of a self-centering designed bridge substructure, Engineering Structures, Vol. 30(2008):3426-3433

Al-Saadi1,b* 1Department of Civil Engineering, University of Baghdad, Baghdad, Iraq adr.bushra_albusoda@coeng.uobaghdad.com, bsaadysemaa@gmail.com Keywords: Geogrid, soil model, interface, modeling, numerical analysis.
Now, many types of products (geogrid, geotextile, geocell, geomembrane, etc.) are available in the engineering process.
Thesis, Building and Construction Engineering Department, University of Technology (2009)
Abo El-Soud, Numerical modeling of geogrid reinforced soil bed under strip footings using finite element analysis, 18thInternational Conference on Civil and Construction Engineering, Jeddah, Saudi Arabia, Volume 10 (2016)
Moogi, Study of Interference of Strip Footing using PLAXIS-2D, International Advanced Research Journal in Science, Engineering and Technology, 3(9) 2016 13-17