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Online since: July 2014
Authors: Yong Ming Sun, Wei Zhang, Dian Bo Wang
In summary, the theories and methods used in this paper was correct, the simplified analytical model proposed was rational, the simplified formula of calculating the main beam pre-camber derived in this paper could consider the affection by the section property changes, whose accuracy can meet the engineering requirements.
China Civil Engineering Journal, 1999, 32(2): 3-8
Bridge Engineering, 2011, 29(3): 48-50
Journal of Railway Engineering Society [7] Wang Hongzhi, Wang Tian, Yang Yong.
Bridge Engineering, 2011, 29(1): 63-66
Online since: October 2012
Authors: Ri Chen Ji, Tao Xu, Juan Yan
The Structural Static Analysis of Multi-grooves Rectangular Aqueduct Richen JI1, a,Tao XU2,b ,Juan YAN2,c 1Key Laboratory of Road & Bridge and underground Engineering of Gansu Province, Lanzhou Jiaotong University, Lanzhou,730070, China 2School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China ajirichen@126.com, bxutaoqqqq@126.com, cyanjuan.well@163.com Keywords: hydraulic structures; multi-troughs aqueduct; structural calculation; finite element; Abstract: Based on the structure and mechanical characteristics of large-sized multi-grooves rectangular aqueduct, the author deduced the calculation formulas of transverse elastic reaction force of double-body and three-body aqueducts with the conditions of elastic supporting by using the force principle in the method of structural mechanics; meanwhile, used 3D Finite Element Method to model and analyze the aqueduct; and contrasted the two calculated results to prove the accuracy of the obtained formulas
The conclusions show that calculating aqueducts with the formulas can meet the precision requirements of engineering design.
The analysis of numerical example The engineering background.
Through verifying practical engineering cases , the results show that the calculation accuracy which meets the engineering requirements and accurate conclusions can guide the design reinforcement and construction of the actual engineering .
Journal of Hydroelectric Engineering.
Online since: May 2012
Authors: Cong Qi Zheng, Guo Qing Sang, Sheng Le Cao, Ze Biao Wei
Research on urban storm flood processes under two measures:detention pond and retention pond Guoqing Sang1, a, Shengle Cao2,b, Zebiao Wei3,c and Congqi Zheng4,d 1,2,3,4Shandong University School of Civil Engineering, Jinan 250061,China asangguoqing@163.com, bcao_s@sdu.edu.cn, cshayu2519@yahoo.cn, dcongqi861209@163.com Keywords: detention pond, retention pond, SWMM, storm runoff simulation.
In the United States and around the world, Many engineering adopt the detention pool to solve rainfall flood problems.
Gardening Engineering, 2005(3): 55 (in Chinese) [4] Schuster S, Grismer M E.
Engineering technical code for rain utilization in building and sub-district[S]. 2006 [8] Li Junqi, Meng Guanghui, Che Wu.
(Water & Wastewater Engineering, 2007, 33(2): 42-46
Online since: August 2012
Authors: Yong Heng Yang, Den Rong Li, Yong Hui Liu, Ling Yun Li
Experimental study on thermal performance of steel mesh frame sandwich insulation board YANG Yong-heng1,2,a, LI Den-rong3,b, LIU Yong-hui4,c, LI Ling-yun3,d 1 Northwest University for Nationalities School of Civil Engineering, Lanzhou, Gansu, China. 730124 2 The Key Laboratory of new building materials and building energy efficiency in Gansu Province, Lanzhou, Gansu, China. 730124 3 Engineering Research Center of e building energy efficiency and green housing in Gansu Provinc, Lanzhou, Gansu, China. 730030 4The Gansu TIANHONG Jin Yun Properties Limited, Lanzhou, Gansu. 730030 ayangyh826@163.com, bldr921@126.com clly_mv@163.com, dtianhongjinyun@163.com Keywords: steel mesh frame sandwich insulation board the thermal performance oblique inserting wire Abstract: In this paper, conducted a systematic study of thermal performance of steel mesh frame sandwich insulation board.
Proposed the insulation effect on oblique inserting wire in the steel mesh frame sandwich insulation board and provided the basis for engineering design and application. 1 Introduction All Building energy efficiency is the key strategy of sustainable development objectives to alleviate the energy shortage contradiction, to improve the quality of people's living environment, and to reduce environmental pollution.
So oblique inserting wire on heat transfer can not be ignored and need to carry out systematic research, in order to amend them in the design calculations and apply them in engineering.
Applications in engineering, the use of 100 oblique inserting wires per square meter can be. 5.4.3 Based on the above test results, combined with the existing norms on calculation method of the thermal resistance and heat transfer coefficient, we recommend when the EPS board or XPS board is insulation sandwich panels, considering the impact of thermal bridges in the surface network and oblique inserting wires (ø3, 100/㎡), the calculated values ​​of thermal conductivity adopt thermal conductivity standard value multiplied by the correction factor of 1.6 that is more reasonable.
Online since: December 2013
Authors: Peng Peng, Zi Yi Hou, Jin De Xie, Ye Zhen Yuan, Shao Peng Zheng
Study on Test Methods for Intelligence-based Monitoring of Fresh Cement Concrete Quality HOU Ziyi1,a* ,PENG Peng2,3,b,XIE Jinde2,3,c,ZHENG Shaopeng1,2,d, YUAN Yezhen1,2,e 1 School of civil engineering, Hebei University of Technology, Tianjin 300401 China; 2 Research Institute of Highway Ministry of Transport, Beijing 100088 China; 3 Communication Trades Key Laboratory of Road Structure and Material, Beijing 100088 China ahouziyi@sina.com, bp.peng@rioh.cn, cxie_jinde@126.com, dzsp060324@163.com, eyuanyezhen1987@163.com Keywords: road engineering, test method, fresh cement concrete, quality monitoring, torque, current Abstract: A test method for monitoring of cement mortar quality has been devised and an empirical relational equation between cement mortar fluidity and torque has been worked out.
In actual engineering operations, it’s impossible to control the slump of each load of concrete; in the meantime, a majority of fluctuating fresh concrete has to be used except for extraordinary deviation from normal slump.
In actual engineering, there are many factors that have an effect on current; in addition to the materials concrete itself is made of, these include different agitating equipment and external power supply.
The slump of concrete coming out of a plant can be approximately predicted by means of online observed value of current feature after even agitation, which provides a test method and relevant theoretical basis for intelligent monitoring of fresh cement concrete quality in actual engineering.
JTG E30-2005, Test Methods of Cement and Concrete for Highway Engineering [S].
Online since: August 2011
Authors: Yan Qing Yang, Bo Jiang, Fa Lin Qi, Shao Hui He
Simulation Test of Equipment of Non-contact Detection with GPR Yanqing Yang1, a, Shaohui He1, Bo Jiang2 and Falin Qi1, 2 1School of Civil Engineering, Beijing Jiaotong University, Beijing, 100044, China 2Institute of Infrastructure testing, China Academy of Railway Sciences, Beijing, 100081, China ayang_yanqing@126.com Keywords: Equipment Manufacturing, GPR, Non-contact Detection, Simulation Test, Tunnelling Engineering, Railway.
Qi: Journal of Engineering Geology, Vol. 18 (2010), p. 963, In Chinese [2] F.Z.
Jiang: Chinese Journal of Rock Mechanics and Engineering, Vol. 29 (2010), p. 3641, In Chinese [3] Y.W.
Zhang: Journal of Railway Engineering Society, Vol. 9(2007), P. 17, In Chinese
Online since: July 2014
Authors: Guang Xian Liang, Wei Ming Chen, Zhong Gen Xu, Chang Gen Deng
Rigid Joints Transferring Forces Outside Box Columns with Imperfect Beams—Finite Element Method Simulation Guang Xian Liang1,a, Zhong Gen Xu1,b, Wei Ming Chen1,c, Chang Gen Deng2,d 1Faculty of Civil Engineering, Guangzhou University, WaiHuanXi Road 230 of Mega-center, Guangzhou,510006,China 2Faculty of structural engineering, Tongji University, Siping Road 1239, Shanghai, 200092, China a737229344@qq.com, bxuzhonggen@263.net, c781002278@qq.com, ddengcg@tongji.edu.cn Keywords: Initial imperfections, joints, force-transforming plates, carrying capacity.
This kind of joints can be used to the practical engineering.
So it becomes one of the indispensable parts in structure engineering.
It is generally considered that the bolt and welded joints of the traditional moment-resisting frames have enough energy dissipation capacity, and plastic hinges’ rotation can meet the demand of engineering.
Joints with force-transforming plates can be used to the practical engineering.
Online since: May 2011
Authors: Xin Yan Shao, Xian Zhang Ling, Liang Tang, Li Na Wang, Min Wang, Wei Zhang
FINITE ELEMENT ANALYSIS ON INSTANTANEOUS DEFORMATION AND CONSOLIDATION DEFORMATION OF SATURATED SOFT CLAY FOUNDATION Xinyan Shao1,a Xianzhang Ling1,b Wei Zhang3,c Liang Tang1,d Lina Wang1,e Min Wang2,f 1School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China 2School of Water Conservancy & Architecture, Northeast Agricultural University, Harbin 150030, China 3Harbin Institute, Harbin 150010, China ashaoxinyan2005@126.com, bxianzhang_ling@263.net, czw3000@sina.com dhit_tl@163.com, ewlnyongji @126.com, fminw1980@sohu.com Keywords: nonlinear numerical simulation; Biot Consolidation Theory; instantaneous deformation; consolidation deformation; pore water pressure Abstract:Deformation analysis of foundation is an important research field in geotechnical engineering, especially analysis on instantaneous deformation and consolidation deformation of saturated soft clay foundations.
Examples Engineering Survey of Examples To prove the applicability and efficiency of proposed approaches and programs, a saturation soft clay ground was chosen as deformation analysis.
Journal of Geotechnical Engineering. 1987.7,Vol.9(No.4):23~32 4.
Creep-consolidation Finite Element Analysis of Soft Ground Settlement and Its Engineering Application.
Dissertation for the Master’s Degree in Engineering, Harbin Institute of Technology, 2002
Online since: December 2014
Authors: Li Li Xie, Hao Chen
Extension to elasto-plastic version of a fracture mechanics method Hao Chen1, a and Lili Xie2,b 1 Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, 1#, Beijing east Yanjiao ETDZ, Sanhe, Langfang, Hebei Province, 065201, China 2 Department of Engineering Seismology, Institute of Engineering Mechanics, China Earthquake Administration, Harbin, 150080, China aemail: chenhao198109263538@hotmail.com, bemail: llxie@iem.ac.cn Keywords: Fracture mechanics, elasto-plastic, non-linear, parallel computing, PDS-FEM Abstract.
In order to apply the fracture analysis method to the engineering scale analysis, CPU based parallel computing technology is applied, and the computation speed is highly advanced.
Introduction The collapse analysis of structures is a hot topic in civil engineering.
Although relative small amount of computation overhead to determine the crack path is needed in PDS-FEM, still significant amount of computation can be expected for the elasto-plastic numerical computation of engineering scale structure.
Online since: March 2008
Authors: Aaron Krawitz
His charge was to "develop programmes in neutron scattering with application in engineering and technology" [12].
He transferred to the Civil Engineering Department in early 1983, became aware of the Harwell group, and teamed up with his brother Prof.
This is notable because the Websters reached out to the engineering community from the beginning, often presenting and publishing in engineering venues.
For many of us, then, it was natural to work with scientists and engineers from other disciplines.
As a result, the field of neutron stress measurement has been a model of interdisciplinary development, bringing together workers from areas such as neutron science, solid state physics, theoretical physics, civil engineering, materials science, and theoretical mechanics.