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With the rapid development of economy, more and more steel structures are applied to bridge engineering.
Especially in urban bridge engineering, a new combination of beam-arch, beam and arch combining in transverse direction of bridge, has been invented and more and more used besides the conventional combination form of beam and arch combining in longitudinal direction of bridge, which is more beautiful but also more complicated for design and construction.
The excellence design, graceful figure, advanced technology, giving dagu bridge a high reputation.
References [1] Shaodong Pan: Railway engineering, 2006(10), pp.21-22 ( in Chinese) [2] Wanmin Ren, Shizhong Liu, Weihong Wu: Journal of Lanzhou Jiaotong university, 2007 (2). pp.42-45 ( in Chinese) [3] Xiangming Lv, Guohong Li: Journal of China and foreign highway, 2009(4), pp.126-129 ( in Chinese) [4] Information on http://okok.org/forum/viewthread.php?

Combustions synthesis of advanced materials: part I. reaction parameters.
Journal Of Ordnance Engineering College Vol. 14,2 (2002), p. 1 [4] Zhao Z M, Ye M H, Du X K, et al.Technologies of synthesizing SHS ceramic-lined pipes an ceramic densification.
Mater Sci Forum Vol. 2, (2004), p. 127 [7] Zhang R Z, Guo Z M, Jia C C, et al.

Utyashev2,b 1Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, Russia 2 Institute for Metals Superplasticity Problems RAS, Ufa, Russia a giraab@mail.ru, bufz1947@mail.ru Keywords: severe plastic deformation, specific deformation zone area, high-strength nanotitanium for medicine.
It is important that in development of technological SPD processes and assessment of their efficiency the developed and established equation dependencies were applied that can be used in engineering practice. 2.
Forum, 2008, Vol. 584-586. pp. 80-85

Beldjilali, Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 138 (2007) 293-297
Williams, Materials Science Forum 600-603 (2009) 739-742

Yang Jiangsu Provincial Key Laboratory of Advanced Welding Technology School of Materials Science and Engineering, Jiangsu University of Science & Technology 2 Mengxi Road, Zhenjiang City, Jiangsu 212003, P.R.
Yang: Mater Sci Forum Vols. 628-629 (2009), p. 721-726 [5] J.

Citation & Copyright (to be inserted by the publisher ) Asymmetric Rolling as Means of Texture and Ridging Control and Grain Refinement of Aluminum Alloy and Steel Sheets Dong Nyung Lee Research Institute of Advanced Materials and School of Materials Science and Engineering Seoul National University, Seoul 151-744, Korea Keywords: Asymmetric rolling, texture, ridging, grain refinement, aluminum alloys, steel Abstract.
Forum.

A non-deficiency of initial raw material for the synthesis of silicon nitride-based materials opens the wide prospects of its application in many fields of engineering [1- 3]. β-SiAlON can be prepared over a wide range of composition with (0 < z - 4:2).
Riley (Ed.): Nitrogen Ceramics, NATO Advanced Study Institutes Applied Science, series No. 23, Noordholf International, Leyden, (1974) [2] R.
Forum Vol. 9 (1972), p.148 [7] N.

Advanced Powder Technology, 23 (2012) 580–582 [4] A.
Materials Science and Engineering, A445-446 (2007) 135-140 [13] F.
Materials Science Forum, 584-586 (2008) 977-981

For this purpose knowledge of product development (study of material strength, thermal physics, mechanics of a deformed solid body et al) is to be integrated with scientific advances of material science.
We hope, that methods of layer-by-layer synthesis of product-composites developed in this direction (selective laser sintering of powders, especially), ion implantation of surface layer, selective surfacing with nano-powders and composite coating can advance solution of this problem soon.
Petrushin, R.H Gubaidulina., New principles of mechanical engineering. 7th International Forum on Strategic Technology (IFOST - 2012) Tomsk, 2 (2012) 129 – 133

Alexander: Final Vibration and Acoustic Loads Development for Certification of the F-22 Advanced Tactical Fighter.
In: 47th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, Orlando, Florida, USA (2009) [6] Punit Nayyar, in: CFD Analysis of Transonic Turbulent Cavity Flows, chapter 7, submitted to the Faculty of Engineering, University of Glasgow (2005) [7] Xiaoxian Chen, Neil D.