Search results

Detection and Reinforce of a Reinforced Concrete Box Culvert Suffered a Conflagration Tianhua Jiang1, a, Jingrong Peng1, band Weiming Zhang2, c 1College of Urban Construction, Wuhan University of Science and Technology 199 Xiongchu Avenue, Wuhan, Hubei, 430070, China 2China Highway Engineering Consulting Group Co., Ltd., wuhan 430056 awustjth@sohu.com, bpjrgreen6@163.com, czhangwm1986@163.com Keywords: box culvert; conflagration; detection; reinforcement.
Reinforcing Programs Firstly, we use Midas Civil to analyze the structure.
[2] Shuren Zhang: The civil engineering structures of the inspection statement and reinforce; the new progress and transformation of some engineering example(China Building Material Industry Publishing House, Beijing 2006)
[4] Zepeng Fang: soie engineering and foundation,Vol. 16(2002), p.76

YANG c Department of Civil Engineering, Hainan University, Haikou 570228, China a sup1224@sina.com, bhanjg@hainu.edu.cn, chnuyang@126.com Keywords: Wavelet; Modal parameter identification; Damage; Wavelet spectrum.
In the dynamic identification of engineering structures, input signals are unknown and modal parameter identification procedure is therefore based on output-only measurement signals.
The following simulated example will demonstrate how to identify the modal parameters of a civil engineering structure through the output-only data by the proposed wavelet-based spectrum density.
The proposed wavelet-based identification technique indicates the promising in the estimation modal parameters of the practical engineering structures.

Experimental investigation of damage characteristics in steel honeycomb sandwich beams Jie Lu1, a, Guang-ping Zoub , Bao-jun Liuc 1 Centre for Mechanics Testing, College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, 150001, P.R.China 1,a lujie@hrbeu.edu.cn, bgpzou@hotmail.com, clockelord@live.cn Keywords: Acoustic emission, steel honeycomb sandwich beams, damage characteristics, nondestructive detection evaluation Abstract.
Introduction Due to advantages of light weight, design flexibility, high stiffness and strength, etc, honeycomb sandwich structures are attractive structural components and are therefore widely used in aviation, space, and civil engineering.
Therefore AE technique is widely used in various engineering applications [3,4].

Study on Failure Criterion and Yield Criterion of Early-age C20 Hongyan Ding 1, 2, 3, a, Chao He 1, b and Puyang Zhang 1, 3, c 1School of Civil Engineering, Tianjin University, Tianjin 300072, China 2 State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin 300072, China 3 Key Laboratory of Coast Civil Structure Safety, Ministry of Education, Tianjin University, Tianjin 300072, China adhy_td@163.com, bhechao2049@126.com, czpy_td@163.com Keywords: Early-age C20 concrete; Biaxial stress state; Failure criterion; Yield criterion; Octahedral stress space Introduction Abstract.
Tianjin university architecture engineering institute, 2009 (In Chinese) [4] Choi, S., Cha, S.W.
China Ocean Engineering, 1996, 10(2):239-244.

Complex Slope Stability Analysis of Slip Surface Stress Method Based on Nader Hypoplastic Model Baolin Xiong 1,a, Jingsong Tang 2,b, Chunjiao Lu 3,c 1 Department of Civil Engineering, Shijiazhuang Railway University, Shijiazhuang 050043, China 2 Department of Civil Engineering, Shijiazhuang Railway University, Shijiazhuang 050043, China 3 Department of Architecture and Art Design, Shijiazhuang Railway University, Shijiazhuang 050043, China a xiongbao77@163.com, b tangjssjz@163.com, cruyan1978@126.com Keywords: Nader hypoplastic model; factor of safety; complex slope; slip surface stress method Abstract: Hypoplaticity and Nader hypoplastic model are introduced.
Stability of slope is the important research task in geotechnical engineering.
Engineering Mechanics, ASCE, 1986,112(9): 966-987

A Useful Curve Fitting Method for Concrete Uniaxial Compressive Experiment Data Jin Chong1, a, Wang Hong2, b, Xia Xiao-zhou1, c 1College of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China 2College of Science & Engineering, the Key Laboratory of Disaster forecast and Control in Engineering, Ministry of Education of China, Jinan University, Guangzhou 510632, China; ajc433@163.com, bWanghong.cn@163.com, cxiaxiaozhou@163.com Keywords: Legendre orthogonal polynomial; least-square method; stress-strain relationship; curve fitting Abstract.
Journal of Nanjing architectural and civil engineering institute, 1995(4): 1~7

A dynamical coefficient mechanics model for fatigue crack growth under variable amplitude loading Lixiong Gu 1,a, Zhifang Liu 1,b, Zhongyong Xu 1,c 1,2,3School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, P.R.
[4] Wanhill R.J.H., Microstructural Influences on Fatigue and Fracture Resistance in High Strength Structural Materials, Engineering Fractrue Mechanics, Vol. 10: 337-357(1978)
[8] Zhifang Liu, Zhonyong Xu, Lixiong Gu, A novel mechanics model for fatigue crack growth under constant amplitude loading, The 11th International Symposium on Structure Engineering, V1:886-890 (2010)
Advanced Materials Research, Advances in Civil Engineering and Architecture, 243-249:5458-5464(2011)

The study on workability and mechanical properties of high volume fly ash underwater concrete Xu Zhang1,a, Qiaoling Liu2,b, Yuqing Hu1 1 School of Civil Engineering, Shandong Jiaotong University, Jinan250023, PR China 2 School of Civil Engineering, Shandong Jianzhu University, Jinan 250101,PRChina azhtmh339@126.com, blql263@163.com Key words: Concrete, underwater, fly ash , workability, mechanical proerty Abstract In this paper, in order to resolve contradiction that is between high workability and anti-segregation in fresh concrete, low early strength and poor carbonation resistance property of concrete and high volume fly ash addition, high performance water reducer is used to reduce yield stress in fresh concrete, mineral mixture and flocculating agent are used to adjust viscosity and measure of activation enhances early strength of this concrete.
▪ Selecting the ludox which have good adaptability to improve the early activity of the active mineral admixture, adjusting the distribution of mineral potential chemical energy of hydration in time, it will greatly facilitate the application of high-volume fly ash concrete in engineering applications.
Experimental research on compatibility between underwater anti-washout admixture and superplasticizer, Key Engineering Materials, v 477, p 190-199, 2011.

Ultrasound Measurements for the Detection of Disintegration of Concrete Slabs Exposed to Fire Iveta Nováková1, a, Petra Macháňová2,b 1Brno University of Technology, Faculty of Civil Engineering, Veveri 95, Brno, Czech Republic 2Brno University of Technology, Faculty of Civil Engineering, Veveri 95, Brno, Czech Republic anovakova.i@fce.vutbr.cz, bmachanova.p@fce.vutbr.cz Keywords: Ultrasound velocity, high temperatures, ISO 834, thermal treatment, failure of internal structure, explosive spalling, Basalt, light weight aggregates concrete Abstract.
Procedia Engineering. 2013, vol. 65, s. 260-265.
Key Engineering Materials. 2004, 270-273, s. 1562-1567.

Gapping Factor Analysis of Heavy Hydraulic Press with Whole Pre-tightening Assembled Frame Zhidong Duan1,2,a, jianjun Wu2,b 1College of Civil Engineering, Lanzhou Jiaotong University, Lanzhou, China 2School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou, China aduan_zhidong@163.com , bwujjun@lzu.edu.cn Keywords: hydraulic press, pretightening force, gap, finite element analysis, assembled frame.
Journal of Plasticity Engineering (in Chinese), 2006, 13(2): 110-113
Mechanical Science and Technology for Aerospace Engineering(in chinese). 2009,170(4): 450-454.