Search results

An Improved Source Model for Simulation Near-field Strong Ground Motion Acceleration Time History Jufang Zhong, Longwei Zhang and Junwei Liang College of Civil Engineering, Nanchang Hangkong University, Nanchang 330063, China azhjf_814@163.com, blongwenspace@yahhoo.com.cn, cl_jw1988@126.com Keywords: source spectrum model; acceleration time history simulation; near-field strong ground motion; stochastic finite fault; Fourier amplitude spectrum, response spectrum.
Introduction Critical engineering mainly suffer near-field strong ground motion.
Presently, stochastic finite-fault method is widely used to simulate the near field ground motion for engineering.
It’s necessary to compare and analysis several source models that engineering commonly used to obtain near field strong ground motion.
Among the frequencies and periods engineering concerned, Fa, Sa, Sv and Sd of model 1 are larger than those of model 5.

In engineering construction, the loess sites have higher earthquake acceleration peak values.
The Geotechnical Engineering Chemistry is one of the main methods to change the loess sites engineering properties [9].
References [1]DENG Jin(2009),The study on quantitative relationship between seismic subsidence of loess and its microstructure[D] [The Doctor’s degree paper].LAN-Zhou school of Civil Engineering and Mechanics, Lanzhou University, Lanzhou, 730000, China
Chinese Journal of Geotechnical Engineering. 29(04):542-548
Soil Dynamics and Earthquake Engineering::31: 45–58

The Stability Analysis of Nantong Coal Mine Waste Dump,Chongqing and Prevention Measures Xintao Zhao1, a, Xinchun Gao2,b and Dongsheng Li3,c 1Safety Engineering department,Henan Institute of Engineering,Zhengzhou 451191, China 2Safety Engineering department,Henan Institute of Engineering,Zhengzhou 451191, China 3College of Civil Engineering,Chongqing University,Chongqing 400045,China afmjrbaopo@163.com Keywords: waste dump; stability analysis; prevention measures; limiting equilibrium method; FLAC; landslide and collapse.
The calculation parameters are selected base on field test and refer to 《Treatment project preliminary investigation report of Nantong coal mine waste dump,Chongqing》as well as experience inengineering and engineering geology manual, they are showed in Table 1.
(4) It is proposed that natural fall mode is replaced by horizontal push mode,the engineering measure that stacking a layer and compacting a layer immediately should be took in gangue stacking and it can increase the consolidation speed and consolidation extent of waste dump,in order to strengthen the anti-disturbance ability of the slope we can use slope vegetation

In: American Society of Civil Engineers Transactions 121, 1956, pp. 1337-1397
In: Journal of Manufacturing Science and Engineering 101, 1979, pp. 36-44
In: Journal of Engineering Materials and Technology 100, 1978, pp.279-286
In: Journal of Engineering Materials and Technology 108, 1986, pp. 245-249
In: Journal of Engineering Materials and Technology 107, 1985, pp. 83-89.

Impact factor statistics analysis of concrete filled steel tube arch bridge considered random roughness of bridge deck Xiangwei Hao1, a, Feng Ma2, b, Qingyang Ma2, c 1School of Civil engineer, Northeast Forestry University, China,150040 2 JiNan Urban Construction Group, Shandong, China, 250000 ahxw_75@126.com, b526799681@qq.com, c85478927@qq.com Keywords：concrete-filled steel tube arch bridge, axle vibration, dynamic analysis, impact effect, statistic analysis Abstract: The essence of the axle coupling vibration in case of random bridge deck is random vibration, therefore, it is quite necessary to research the effect of vehicle impact on basis of statistic analysis.
In addition, a large quantity of engineering practices shows that the axle vibration effect of this type of bridge is marked and is worthy to be focused.
Comparison between the calculated displacement-time curve and the actually-measured values for the span middle of structure shows that the two coincide well, demonstrates the accuracy and engineering practicability of program in the paper.
The static analysis method was applied for carrying out the static analysis and research for the vehicle load impact effect of bridge in case of roughness, so to provide reference for the relevant research and engineering application.
Journal of Bridge engineering, 2005, 10: 133-141

Tensile, Flexural and Water Absorption Properties of Bamboo Fiber/Unsaturated Polyester Composites: Effect of Calcium Carbonate Content Sugiman Sugiman1,a*, Atin Martino1,b, Paryanto Dwi Setyawan1,c, Buan Anshari2, d 1Department of Mechanical Engineering, Faculty of Engineering, University of Mataram Jl.
Majapahit 62 Mataram, Indonesia 83125 2Department of Civil Engineering, Faculty of Engineering, University of Mataram Jl.
Introduction Bamboo fiber is gaining much attention from materials engineer to develop low-cost green composite materials.
Anshari, Effects of alkali treatment of bamboo fibre under various conditions on the tensile and flexural properties of bamboo fibre/polystyrene-modified unsaturated polyester composites, Journal of Engineering Science and Technology 14(1) (2019) 026 – 046
Series: Materials Science and Engineering 532 (2019) 012008

Tensile Properties of Angle Cured Laminated Composites Structures under Gravity Effects Yuhazri M.Y.1,a, Jennise T.T.T2,b, Sihombing H.3,c, Said M.R.4,d, Nirmal U.5,e and Megat Ahmad M.M.H.6,f 1,2,3Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100, Durian Tunggal, Melaka. 4Faculty of Mechanical Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100, Durian Tunggal, Melaka. 5Faculty of Engineering & Technology, Multimedia University, 75450, Bukit Beruang, Melaka. 6Faculty of Engineering, National Defence University of Malaysia, 57000, Kem Sungai Besi, KL.
Laminate composite plates are also extensively used in civil, mechanical and aerospace industries [3].
The polymeric materials used for matrix are often, in engineering terminology, referred as plastics.
FRP products are recognized as high tech materials when compared with conventional engineering materials [5,6].
Saijod, The finite element analysis on hexagonal ring under simple lateral loading, Global Engineers and Technologists Review. 2 (2012) 1-7

The Applicability of GRP and NRP Composites in Rehabilitation of Unpressurized Pipes Akin Akinci*, Ahmet Gulec and Fevzi Yilmaz Sakarya University, Faculty of Engineering, Department of Metallurgical and Materials Engineering, Esentepe Campus, 54187 Sakarya/Turkey e-mail:akinci@sakarya.edu.tr Keywords: Polymer matrix composite materials (CIPP), three point flexural test, abrasive and erosive wear, sewer pipes.
In Figure 2 a, a special needled felt reconstruction tube, coated on the outside, is custom engineered and manufactured to fit the damaged pipe exactly.
Omara: Analysis of cured-in-place (CIPP) installed in circular and oval deteriorated host pipes, Doctorate thesis, College of Engineering Louisiana Tech University (1997) 1-6 [3] M.
Reinhart, Engineered Materials Handbook, Composites, ASM International, Vol. 1 (1987) 215-218 [7] L.
Hollaway: Polymer Composites for Civil and Structural Engineering, Blackie Academic and Professional, Chapman & Hall (1993) 131 [8] J.A.

Shahir Liew3, c 1, 2, 3 Civil Engineering Dept., Universiti Teknologi PETRONAS, Tronoh, Perak, Malaysia a carrol.ng82@gmail.com, b kurian_john@petronas.com.my, c shahir_liew@petronas.com.my Keywords: classic spar; RAO; short-crested waves; long-crested waves; wave tank test.
The tests were conducted in the wave tank in the Offshore Engineering Laboratory of Universiti Teknologi PETRONAS.
Theory)”, International Journal of Offshore and Polar Engineering, 6, 1, (1996) 27-34
Zhu, “Diffraction of short-crested waves around a circular cylinder”, Ocean Engineering, Vol. 20.
Satravaha, “Second-order wave diffraction forces on a vertical circular cylinder due to short-crested waves”, Ocean engineering, Vol. 22, No. 2, (1995) 135-189

Evolutionary Identification of Deformation Dynamics of Geotechnical Structures Yang Chengxiang 1,a, Feng Xiating 2,1,b 1 School of Resources & Civil Engineering, Northeastern University, Shenyang 110004, China. 2 Institute of Rock and Soil Mechanics, The Chinese Academy of Sciences, Wuhan, 430071 China.
Introduction Deformation prediction has been an essential criterion in the design, construction and maintenance of geotechnical engineering since deformation contains enough stability information of geotechnical structures.
However, affected by rheologic property of geo-materials and many other engineering factors, geotechnical deformation is highly time-dependent and commonly characterized with complex nonlinear dynamic behavior.
It can be widely used in geotechnical engineering as a useful tool for deformation prediction and in the prediction analysis of other complex dynamic systems.
Chinese Journal of Geotechnical Engineering Vol. 25 (2003), p. 468 (in Chinese) [7] D.