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A cohesive model with frictional effects on strength and stiffness under transverse compression Irene Guiamatsia1, a and Giang D Nguyen2, b 1 School of Civil Engineering, University of Sydney, NSW 2006, Australia 2 School of Civil, Environmental and Mining Engineering, University of Adelaide, SA 5005, Australia airene.guiamatsia@sydney.edu.au, bg.nguyen@adelaide.edu.au Keywords: interface, constitutive model, friction, damage, coupling, delamination, thermodynamics.
This constitutive model is then used to successfully predict the response of realistic engineering structures under generalized loading conditions as demonstrated with the numerical simulation of a fiber push-out test.
The debonding of an interface is an important and common problem, as the bond between two components is often the weakest link of an engineered system.
International Journal for Numerical Methods in Engineering, 68: 542 - 582
Materials Science and Engineering A, 125: 203-213

Study on the Hamilton Dynamical System of Wheel-and-Rail Dynamical Model of High-Speed Train Shen Hongyun1, a Du Jianhua 2, b Wang Yulin3, c 1Shijiazhuang Institute of Railway Technology, Shijiazhuang, Hebei 050041, China 2Hebei Jiaotong Vocational & Technical College, Shijiazhuang 050035, China 3Department of Civil Engineering and Architecture, Wuyi University, Wuyishan Fujian, 354300, China adujianhua2014@126.com, bjtxyshy@163.com, cylwanghm@163.com‍‍ Keywords: high-speed train, wheel and rail, non-smooth dynamics, Hamilton dynamical system Abstract.The study on dynamical model of wheel and rail of high-speed train has attracted many researchers nowadays.
According to the damping force and the dry friction between wheel and rail, the dynamical model of wheel and rail of high-speed train is constructed and the Hamilton dynamical system of this model is analyzed to discuss its nonlinear dynamical behaviors, which will benefit the practical engineering of high-speed train.
The importance of non-smooth dynamical system in many engineering fields makes many researchers focus on how to study the non-smooth dynamical behaviors of these systems.
According to the damping force and the dry friction between wheel and rail, the dynamical model of wheel and rail of high-speed train is constructed and the Hamilton dynamical system of this model is analyzed to discuss its nonlinear dynamical behaviors, which will benefit the practical engineering of high-speed train.

The Research On The Influence Of Connection Stiffness To The Multi-Layers Staggered Steel Truss Structure Performance Yuzhou Shi1, a, Xiaoyan Zheng1,b and Yan Li1,c 1School of Civil Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China ashi45016@126.com, bxyzh@njfu.com.cn, chiyan2009@163.com Keywords: Staggered Truss System, Semi-Rigid Connection, Mechanical Behavior.
But each connection mode in engineering has certain rotary stiffness, they can't completely meet the design requirements.
China Civil Engineering Journal, 2002,35(4):12-16 [5]Linfeng Lu,Qiang Gu.Staggered truss joints design method.
Structural Engineers, 2005,21(4):66-69 [7]Xinwu Wang,Li Sun.Research of Behavior of Semi-rigid Connections in Steel Frame.

Circular Materials from the Ocean Waste: Prototyping Additive Manufacturing Processes for 3D Printing with Regenerated Plastics Lucas Lopes1,a, Harish Daruari2,b, Fernando Duarte3,c, Manuela Almeida1,d, Paulo Mendonca2,e* 1University of Minho, ISISE, ARISE, Department of Civil Engineering, Guimarães, Portugal 2University of Minho, School of Architecture, Art and Design, Guimaraes, Portugal 3University of Minho, IPC, Department of Polymer Engineering, Guimarães, Portugal alucas_lopes@civil.uminho.pt, bharish.daruari@gmail.com, cfduarte@dep.uminho.pt dmalmeida@civil.uminho.pt, emendonca@eaad.uminho.pt Keywords: Regenerated Plastics, Circular Materials, Digital Fabrication, Marine litter, 3D-P Prototyping, Circular-blue economy.
This paper outlines the processing of waste, material engineering, rapid prototyping, and digital fabrication.
Dhengare, “Investigating the Application of Waste Plastic Bottle as a Construction Material: A Review,” Journal of Advance Research in Mechanical & Civil Engineering, vol. 2, no. 3, pp. 86–99, Mar. 2015, doi: 10.53555/NNMCE.V2I3.362
Hernandez, “A Review of Additive Manufacturing,” ISRN Mechanical Engineering, vol. 2012, pp. 1–10, Aug. 2012, doi: 10.5402/2012/208760
Knaack, “Additive Manufacturing for Future Facades: The potential of 3D printed parts for the building envelope,” Journal of Facade Design and Engineering, vol. 3, no. 3–4, pp. 225–235, Jun. 2016, doi: 10.3233/FDE-150042

Fly Ash Autoclaved Aerated Concrete Field Detection Analysis of Heat Transfer Coefficient of Self Thermal Insulation Building Envelope BAI Li1, a, NIU Meng2,b , LI Ying3,c 1，2，3School of Municipal and Environmental Engineering, Jilin Jianzhu University, Changchun, 130018,China aniumeng0409@163.com, bbaili0308@163.com, c654673828@qq.com Key words: heat transfer coefficient; field detection; temperature controlled tank-heat flow meter method; building envelope Abstract.This paper mainly analyzes the principle and application conditions of temperature controlled tank-heat flow meter method in field testing the heat transfer coefficient.
And according to the actual engineering examples, using temperature controlled tank-heat flow meter method to test the heat transfer coefficient of fly ash autoclaved aerated concrete building envelope.
Field detection and study of demonstration project Engineering project outline.Architecture teaching center of Jilin Architecture University is identified as the national "the 12th Five-Year science-technology support projects" demonstration project.
The detector performs the standard "heat transfer coefficient of building envelope and detection method of heating quantity (GB/T23483-2009)" and "detection standard of civil building energy saving site" (DB11/T555-2008).
(in Chinese) [4] DGJ/J32-2006, The Testing Standards of Field Thermal Performance in Civil Building Energy Conservation Project [S].Beijing, China Architecture Industry Press, 2006,(in Chinese) [5,6]Bai Li, Li Ying, He Shuming.

Probabilistic seismic capacity models for RC bridge columns Weidong Zhuo1, a, Wuhua Zeng1, b 1School of Civil Engineering, Fuzhou University, Fuzhou 350002, China azhuowd@fzu.edu.cn, bzengwuhua8606@yahoo.com.cn Keywords: Performance levels, RC columns, Probabilistic models, Modified Park-Ang damage index Abstract.
Zhao, “ Seismic damage of highway bridges during the 2008 Wenchuan earthquake,” Earthquake Engineering and Engineering Vibration, 8: 263-273,2009
Structure Engineer Association of California, 1995
Vafai, “ Correlation Between Structural Performance Levels and Damage Indexes in Steel Frames Subjected to Earthquakes,” Scientia Iranica Transaction A-Civil Engineering, Vol.16, issue 2,147-155, 2009
Ramasco, “The Use of Damage Functions in Earthquake Engineering: A Comparison Between Different Methods,” Earthquake Engineering and Structural Dynamics, 22, 855-868,1993

Study on Mechanical Properties of Cement Clinker and Limestone by Hertzian Indentation Method Xiufang Wanga School of Science, Beijing University of Civil Engineering and Achitecture, Beijing, China, 102610 awangxiufang@bucea.edu.cn Keywords: Hertzian indentation, Recovery resistance, Energy dissipation, Clinker, Limestone Abstract.
It is significant and efficient for engineering application.
Furthermore, the degree of difficulty or easiness of crushing are directly affected by the recovery resistance and energy dissipation of cement materials which are significant and efficient for their engineering application.
Acknowledgments This work was supported by the “973” project (2009CB623103) and Beijing University of Civil Engineering and Achitecture Foundation under Grant (No.101202307).

The Calculation of Critical Pile Length for Super-long Pile Based on Settlement Control Linong Xia1,2, a, Yundong Miao2,b , Tieqiang Tan1, Xin Tong1 1Department of Civil Engineering, Changsha University, Changsha,Hunan,410003, China 2College of Civil Engineering and Mechanics, Xiangtan University, Xiangtan,Hunan,411105,China a lnxia@126.com, b miaoyundong@126.com Keywords: Super-long pile, Critical pile length, Settlement control, Shear deformation-transfer Abstract.
Lastly, the critical pile length of an engineering example is analysed by the method, the calculated results have agreed well with the field measurement.
In the engineering, piles with a length is equal to or more than 50 meters are treated as super-long piles, including cast-in-place bored piles, pre-cast concrete piles and steel pipe piles.
Thus, formula (11) is proved to be correct for determining the critical pile length based on settlement control in engineering.
References [1] Jibao Yang: Geotechnical Engineering Technique Vol. 1 (1997), p. 26-29,in Chinese

Research on Multi-level Fuzzy Evaluation for Safety of Floating Bridge in Complicated Engineering Environment Yinzhi Zhou, Jianping Wang PLA University of Science & Technology, Nanjing, Jiangsu 210007, China Keywords: Floating Bridges; Safety Evaluation, Complex Environment, System Engineering, Multi-level Fuzzy Evaluation Abstract.
Meanwhile, the main factors affecting the safety of the floating bridges are determined, thus providing certain references for the safety evaluation of other engineering.
References [1] Xiaoyu Li, Yihong Li (2004) Discussion on the Bidding Strategies and Skills of the International Petroleum Engineering.
International Trade 2(3): 43-45 [3] Rong Liu (2004) Quantitative Evaluation on the Bidding Risks of Large International Civil Engineering Contracting Projects Tianjin: Tianjin University 5(8):259-274 [4] Tiancu Xu (2004) Discussion on the Bidding Risk Evaluation and Decision of Engineering Project.
Sichuan Building Materials 6(5):485-489 [5] Zhicheng Yuan, Lei Zhou, Jinfang Lu (2003) Risk Evaluation Method and Application Research of the International Petroleum Engineering Projects.

Vulnerability Analysis for Steel Frame Structure Due to Strong Earthquakes Longhe Xu1, a, Xu Shan1,b and Zhongxian Li2,c 1 School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China 2 School of Civil Engineering, Tianjin University, Tianjin 300072, China alhxu@bjtu.edu.cn, b09121577@bjtu.edu.cn, c zxli@tju.edu.cn Keywords: Steel Frame Structure, Damage Model, Vulnerability Analysis, Damage Assessment Abstract.
Introduction Structural seismic vulnerability analysis is a widely used method for disaster assessment in the field of earthquake engineering [1].
Cornell: Earthquake Engineering and Structural Dynamics Vol. 31, No. 3 (2002), p. 491
Ang: Journal of Structural Engineering, ASCE, Vol. 111, No. 4 (1985), p. 722
Dyke: Journal of Engineering Mechanics, ASCE, Vol. 130, No. 4 (2004), p. 366