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Numerical study of damage model for reinforced concrete beam under complex boundary condition subjected to air blast load Dan Li a, Jiang-tao Li b, Jun-lin Tao c School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, China a112282518@qq.com, b345551652@qq.com, cjunlintao@126.com Keywords: Reinforced concrete beams; Blast loads; Dynamic responses; Damage morphology; Numerical analysis Abstract: Explicit FEM model ANSYS-DYNA is applied to simulate dynamic response and damage morphology of RC beam under blast loading.
Introduction Reinforced concrete structure is the most common structure form in the civil engineering.
References [1] Xin-zheng Lu Xu-chuan Lin: submitted to Engineering Mechanics, 2010, 27 (11): 64-70.
(In Chinese) [5] Li Chen, Qin Fang: submitted to Engineering Mechanics, 2010, 27 (8): 156-163.
(In Chinese) [7]Chun-ming Song, Ming-yang Wang: submitted to The First National Engineering Safety and Protection Symposium, 2008, 47-53.

Identification of small crack in Beam Structures using Anti-Resonant Frequency and Wavelet analysis Dansheng Wang1, 2, a, Danyan Shen1, 2 and Hongping Zhu1, 2 1 School of Civil Engineering & Mechanics, Huazhong University of Science and Technology, 2 Hubei Key Laboratory of Control Structure, Huazhong University of Science and Technology, Wuhan, 430074 P.
Introduction For many years, crack identification techniques have been investigated by a lot of researchers in mechanical and civil engineering fields.
Shah: Journal of Engineering Mechanics, Vol. 126(2000), p.273 [4] D.
Zhu: Key Engineering materials, Vol. 293-294(2005), p.557 [6] J.
Ye: Earthquake Engineering and Structural Dynamics, Vol. 36(2007), p1089 [10] S A Paipetis, A D Dimarogonas: Analytical Methods in Rotor Dynamics, London: Elsevier Applied Science, 1986 [11] S Loutridis, E Douha, and A Trochidis: Journal of Sound and Vibration, Vol. 277(2004), p1025

Analysis of Fired Brick and Tile Waste Characteristics in Adapting to the Road Greening Tao Guo 1,a, Pengfei Li1,b, Yan Han1,c and Fan Luo2,d 1Hebei Institutie of Architecture Civil Engineering, Civil Engineering Department Zhang Jiakou Hebei 075000, China 2Zhang Jiakou Tongtai Holding Group Co.
Application technical of green engineering which is used to rehabilitate and reconstruct the vegetation has become an important connotation for the road bio-environmental engineering.
German "Green Development and Engineering Association" Green Guide, published in 2002 shows that the carbonate in the treatment and planting is not as the evaluation criteria of the green planting.

Improvement of concrete durability by composite cement Nai-Qian Feng 1,a Quan-Lin Niu2,b Chong-Zhi Li3,c 1 Department of civil engineering, tsinghua university, Beijing, 100084 P.R.China 2 Shandong university of technology, Zibo, Shandong 255049, P.R .China 3 Beijing university of civil engineering and architecture，Beijing 100044 a mail: fengnq@mail.tsinghua.edu.cn Keywords: durability; mineral powder; Alkaline saline soils; alkali-aggregate reaction; charge passed Abstract: Mineral powders play positive role in improving the durability of concrete subjected to alkaline and saline corrosion, where sulphate ion and chloride ion coexisted may cause serious deterioration to the reinforced concrete structures.
The suppression effect of composite cement on ACR expansion was tested with the concrete microbar method proposed by the former Nanjing University of Chemical Engineering [4].
As the cement exhibits perfect performance in decreasing charge passed and defending NaCl and MgSO4 aggression, the product was also suitable for oceanic and offshore engineering.
Chinese Engineering science, 2002, 2, pp69-73

Research on ground subsidence law using FEM for comprehensive mechanized caving coal mining under railway YANG WANG1,a, QINGYUAN LI1,2,b 1Department of Civil Engineering, Engineering College of Armed Police Force, Xi¢an 710086, China; 2School of Civil Engineering and Architecture, Xi¢an University of Science and Technology, Xi¢an 710054, China aEmail:maimi007@163.com bEmail:liqingyuan1976@163.com Keywords: under special railway line, comprehensive mechanized caving coal mining, ground subsidence, Finite Element Method, in-situ monitoring, deformation law, technical measure Abstract: With the project of mining 701 Working Face of Baojianshan Coalmine of Jingyuan Coal Industry Group undermine special railway as a background, the authors predict ground subsidence law caused by routine comprehensive mechanized caving coal mining method and back filling method with elastic-plastic nonlinear FEM method.
(2) 2 Calculation process Simulation calculation principle is that making calculatation step is same with engineering practical construction process as much as possible aimed to get credible and reliable simulation results.The calculation process of model 1 are as follows: (1)Initial ground stress is simulated according to deadweight of rock and soil mass.
Application teaching course for ANSYS engineering calculation.

Water Efficiency and Applying Water Resources in the Design of Urban Resident Plan Ruozhu Wang 1, a, Yongmei Qian1, b, and Wei Mo 1, c 1Jilin Institute of Architecture and Civil Engineering, 5088-Xincheng Street, Changchun 130118, China awangruozhu@126.com, bqym0606@yahoo.com.cn, cmowei@jliae.edu.cn Keywords: Water Efficiency; Sustainable Development, Urban Resident Plan; Residential Design.
According to 《The Building Area Rainwater Usage Engineering Technical Guide》(GB50400-2006), the average precipitation in Shanghai is 1164.5 mm, so the total available rainwater is: 1326 m2 × 1.1645 m × 0.4 = 617.65 m3.
Jilin Institute of Architecture and Civil Engineering: Master Dissertation. 2008
Water&Wast- ewater Engineering, 2002, 28(3):12-14
On water saving and water resources design for green- residential quarter [J].Water & Wastewater Engineering, 2008, 34(1):77-79

Restrained Shrinkage Test of High Performance Concrete Ring Specimen Alena Zemanová1,a, Radoslav Sovják1,b *, Jiří Litoš1,c 1Czech Technical University in Prague, Faculty of Civil Engineering, Prague 6, Czech Republic a alena.zemanova.1@fsv.cvut.cz, b sovjak@fsv.cvut.cz, c litos@fsv.cvut.cz Keywords: concrete, cementitious composite, restrained shrinkage, ring test Abstract.
This change was transmitted by an external device to an engineering strain.
Vavřiník, Experimental Investigation of Mechanical Properties of UHPFRC, Procedia Engineering. 65 (2013) 14-19
Konvalinka, Mixture Design and Testing of Ultra High Performance Fiber Reinforced Concrete, Malaysian Journal of Civil Engineering. 25 Special Issue (1) (2013) 74-87
Song, Experimental Investigation of Ultra-high Performance Fiber Reinforced Concrete Slabs Subjected to Deformable Projectile Impact, Procedia Engineering. 65 (2013) 120-125

The cause and control of cracks about the fly ash foam composite light wallboard Yuedong Sun1,a, Pengfei Hou1,b 1Shandong Provincial  Key  Laboratory  of  Civil Engineering Disaster Prevention and Mitigation (Shandong University of Science and Technology), Qingdao, Shandong, 266590, China 2Shandong Provincial  Key  Laboratory  of  Civil Engineering Disaster Prevention and Mitigation (Shandong University of Science and Technology), Qingdao, Shandong, 266590, China 1asunyd1236@126.com, 1b307952353@qq.com Keywords: light wallboard, cracks, preventive measures , remedial measures.
Testing different seams material and surface treatment, by actual engineering installation, we find the appearance of fly ash foam composite light wallboard wall crack regularly, which is shown in Figure 1.
Some engineering, factory or construction for the progress of the project, regardless of these factors, wallboard stripped a few days and transported to the site to install.
The light wallboard cracking problem of [J], In chinese:the Architectural Engineering Science and Technology Information [5] Ruiji Luo, Aiwen Tian.

Damage Detection of Concrete Structure Based on Approximate Entropy Zhong Kai Xiea; Guo Hua Liub; Zi Hua Zhangc College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, 310058, China axzkzju@gmail.com, bzjuliugh@zju.edu.cn, czhangzihua1984@gmail.com Keywords: Concrete structure, Damage, Free vibration signal, Approximate entropy.
ApEn is a well-known measurement of nonlinear signals processing method [4,5], and has been successfully applied to the field of biomedical engineering [6], financial market time series [7] and mechanical systems [8], etc.
Since ApEn is such a powerful tool for seeking a relationship between the test signal data and the health state of a system, it might be interesting and meaningful to use it as a diagnostic tool in civil engineering, which has never been done before to the best of the author’s knowledge.
Approximate Entropy It has been proved that ApEn is very suitable to quantify the irregularity and complexity in real sequences and time series data just by relatively short and noisy data sets in many science and engineering fields.
Experimental and technical supports from the Structural Engineering Laboratory of Zhejiang University are appreciated.

SIGNIFICANCE OF BLAST FURNACE SLAG AS COARSE AGGREGATE IN SELF COMPACTING CONCRETE R.Krishnasami1,a and Dr.R.Malathy2,b 1Asst.Divisional Engineer, Highways Department, Vilupuram – 606202, Tamilnadu, India. 2Dean R&D, Sona College of Technology, Salem-636005, Tamilnadu, India.
Slag, the by-product of steel and iron producing processes, has been used in civil engineering for more than 100 years.
Hibino M., Okamura H., Ozawa K., (1998)Role of viscosity agent in Self Compactability of fresh concrete , Proceedings of the sixth East Asia conference on structural engineering and constructions, No.2, pp 1313 – 131 [12].
Okamura H., Ozawa K., Mix Design for Self-Compacting Concrete, Concrete Library of Japanese Society of Civil Engineers, 1995,pp. 107-120
Journal of Future Engineering & Technology, Vol 3, 2007, pp 78-82.