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The finite-element analysis for CFRP and steel bar strain in the strengthened concrete slab Xiguang Cui1, a, Jianwei Ding1,b , Yang Yang1,c , Yongfang Liu1,d 1School of Civil Engineering, Shenyang Jianzhu University, Shenyang Liaoning, 110168, China aabc0808abc@sina.com, bpdf18k@163.com, c jiazhaiyang@163.com, dliuyongfang2006@126.com Keywords: CFRP, Steel Bar, Finite Element Analysis, One-way Slab, Strain Abstract.
[4] Francois Buyle-Bodin, Emmanuelle David, Eric Ragneau Finite element modeling of flexural behaviour of externally bonded CFRP reinforced concrete structures .Engineering Structures.2002, (24):1423-1429
[7] The Study and Finite Element Analysis of Reinforced Concrete Beam Strengthened with CFRP, Tianjin university architecture engineering institute, 2006.
China Civil Engineering Journal, 2003, 36(2):46-51.In Chinese
[9] Experimental Study on Flexural Strength of RC Beams Strengthened with Continuous Carbon Fiber Sheet [J].Building Structure, 2000, (7) [10] Structure engineering analysis and example explanation [M].

Experimental Investigation of Influence of Normal Pressure on Rotational Friction Behavior Jin-Young PARK 1, a, Sang Whan HAN2, b, Ki-Hoon MOON 3, c Kang Seok LEE 4, d, Hyung-Joon KIM1, e 1 Department of Architectural Engineering, University of Seoul Siripdae-Gil 13, Dongdaemun-gu, Seoul, Korea 2 Division of Architectural Engineering, Hanyang University 222 Wangsimni-ro, Seongdong-gu, Seoul, Korea 3 Division of Architectural Engineering, Hanyang University 222 Wangsimni-ro, Seongdong-gu, Seoul, Korea 4 Department of Architecture, Chonnam National University 77 Yongbong-ro, Buk-gu, Gwangju, Korea ajyp6727@gmail.com, bswhan82@hotmail.com, cacttr@hanmail.net, dkslnist@chonnam.ac.kr, ehyungjoonkim@uos.ac.kr Keywords: Friction mechanism, Rotational friction, Normal pressure, Brake lining pads, Stainless steel sheet.
Dept. of Civil Engineering, University of Toronto, Canada, p. 6-30, (2004) [2] Cristopoulos C. & Filiatrault A. : Principles of passive supplemental damping and seismic isolation.
American Society of Civil Engineers, p. 196-197, (2010) [4] Choi K.S., Park J.Y. & Kim H.J: Study on the configuration of frictional surfaces for stable friction behavior .

Substructure damages and excitations identification using measured response Qingxia Zhang 1,3,4, a, Zhongdong Duan 2,b and Łukasz Jankowski 3,c 1 College of Civil and Architecture Engineering, Dalian Nationalities University, Dalian, 116650, P.
R. of China 3 School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, PR China 4 Smart-Tech Centre, Institute of Fundamental Technological Research, Polish Academy of Sciences, 02-106, Warsaw, Poland azhangqingxia_hit@hotmail.com, b duanzd@hit.edu.cn, c lukasz.jankowski@ippt.pan.pl Keywords: Structural health monitoring; damage identification; load identification; substructure Abstract.
Introduction In structural health monitoring, accurate external loads or loads and structural modifications are indispensable on maintaining structural integrity, as well as the evidence for forensic engineering.
Load identification is most often performed off-line in time domain [[1] Ł Jankowski, Off-line identification of dynamic loads, Structural and Multidisciplinary Optimization, 2009, 37( 6): 609–623 ] or in frequency domain [[2] H Inoue, H Ishida, K Kishimoto and T Shibuya, Measurement of impact load by using an inverse analysis technique: Comparison of methods for estimating the transfer function and its application to the instrumented Charpy Impact test, Japan Society of Mechanical Engineers International Journal, 1991, 34( 4): 453–458 ].
Smart technologies for safety engineering[M] Wiley, Chichester, 2008 ].

Dynamic Responses of the Beam Bridge under Moving Vehicular Loads Xinfeng Yin1a , Lei Zhang 1 , C.S.Cai1,2 and Yang Liu1 1School of Civil Engineering and Architecture, Changsha University of Science & Technology, Changsha 410004, Hunan, China 2Dept. of Civil and Environmental Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, USA a Corresponding author: yinxinfeng@163.com Keywords: Bridge; Moving vehicle; Model updating; Impact factor; Vibration Abstract.
ASCE Journal of Bridge Engineering; 2006, 11(4): 410-419
Journal of Wind Engineering and Industrial Aerodynamics；2004, 92： 991-1024
Journal of bridge engineering. 2011, 16(3):400-412.

Character Analysis of Balance and Imbalance of Varying Rigidity of Rigid Pile Composite Foundation under Seismic Load Zhenfeng Wang 1, a, Kesheng Ma 2, b 1School of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China 2 School of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China a358zhenfeng@163.com, bmksing@163.com Keywords: rigid pile composite foundation; balance and imbalance of varying rigidity; seismic load.
There are many ways about rigid pile composite foundation variable rigidity, such as variable pile length, variable pile spacing, variable pile diameter, length and varying combinations of variable pile pile spacing, turning the pile diameter pile length and variable combinations, variable pile spacing with varying combinations of pile diameter and varying pile length, variable pitch and variable pile diameter pile three combined, etc. which have been gradually applied in practical engineering.
The paper is about changing the vertical pile composite foundation bearing stiffness by using for variable length, based on numerical simulation analysis, by ABAQUS finite element analysis software to study the seismic performance of variable stiffness of rigid pile composite foundation using time-history analysis, which expects to be better applied in practical engineering.
Chinese Journal of Geotechnical Engineering, 2000, 22(2): 151-157 [2] Ziguo Xu, Erxiang Song.

Study on Relationship of Seismic and Pseudo Response Spectrums Gonglian Chen1,a, Wenfeng Liu2,b and Gang Li3,c 1School of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450011, China 2School of civil engineering, Qingdao Technological University, Qingdao 266033, China 3Institute of Architectural Engineering, Qingdao Agricultural University, Qingdao 266109, China aChengonglian@gmail.com, bLwfqdjg@263.net, cQdndlg@163.com Keywords: response spectrum; performance based seismic design; pseudo response spectrum.
Nagaya, Residual displacement response spectrum, Journal of Structural Engineering, 120(1998), 523-530
Dynamics of Structures, Theory and applications to earthquake engineering, Prentice-Hall Inc, USA, 2004

Research on Stiffness Damage of Simply Supported Beam after Fire Dongfu Zhao1,a Mei Liu1,b Xiaoruan Song2,c Dan Wang3,d (1 Beijing Engineering Research Center of Monitoring for Construction Safety,  Beijing University of Civil Engineering and Architecture, Beijing, China; 2 North China University of Technology, Beijing, China 3 China University of Mining and Technology, Beijing, China azhaodongfu@bucea.edu.cn, bliumei0311@126.com, csxr@ncut.edu.cn d953678567@qq.com ) Keywords: reinforced concrete beam, stiffness damage, fire, width reduction Abstract: First, a fire test on concrete beams was carried out.
And the formula applied to engineering practice was also deduced.
Acknowledgements This work is financially supported by the National Natural Science Foundation of China (51378045), and Open Research Fund Program of Beijing Engineering Research Center of Monitoring for Construction Safety (Beijing University of Civil Engineering and Architecture).

Stairs Effect on Steel Frame Structure under Seismic Loading Zhuojun Zeng1, a, Junping Wang1, b and Yanxiang Li2, c 1Faculty of Civil Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650500, China 2Yunnan Pan-Asian Engineering Design Institute Co., LTD, Kunming, Yunnan, 650500, China a673842125@qq.com, b705553809@qq.com, c18387171808@qq.com Keywords: Seismic Action, Stairs, Steel Frame Structure, Spatial Effects, Finite Element Analysis Abstract.
Most of the data to reduce the second and third layer within 10%, basically meet the requirements of engineering precision.
To compared with the above three conditions, so the list to ignore the stairs arrangement (popular ways that engineering modeling, Fig.2).
Beijing: the journal of civil engineering, 2010, 10:53-62 [4] YueKui Shen, Tao Zhang, Wei Wang.

Test Research of Chloride Ion Penetration in Concrete Tunnel Lining Structure Zhong Li1,a, Yanpeng Zhu1 ,Xiaoyan Cui1 1School of Civil Engineering,LanZhou University of Technology,LanZhou, 730050, China ae-mail: lizhong@lut.cn Keywords: Chloride erosion.
Therefore, the specific test researches should be done for the different engineering.
Chinese Journal of Underground Space and Engineering.2009,12,vol5:1092~1097(in Chinese)
Engineering Materials and Structures Volume 35, Number 9, 586-588, DOI: 10.1007/BF02483129
Material in Civil Engineering, 2003, 15(5): 443~451

Influence of freeze-thaw cycles on bonded interface performance between CFRP and high strength concrete Lei Hong a, Runmin Duob , Suyan Wangc and Luxi Lid State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian , China ahonglei_a@163.com, bdrm_2013@163.com, csuyanwang1958@yahoo.com.cn, dccinthesky@126.com Keywords: CFRP; high strength concrete; freeze-thaw cycle; effective bond length.
World earthquake engineering, 2005 (3):12～18  [2] Suyan Wang, Mei Yang.
Experimental study on flexural behavior of damaged high-strength RC beams strengthened with CFRP[J].Earthquake resistance engineering and retrofitting . 2006（2）:93-96 [3] Hedong Niu, Zhishen Wu.
Computer-aided civil and infrastructure engineering. 2005(20):354-368 [4] Suyan Wang.
Experiment study on durability of FRP strengthening civil engineering structures under load and aggressive environment[D].