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Online since: November 2013
Authors: Kuei Hsiang Cheng, Cheng Chao, Chih Hsien Lin
Evulation of Temporary Protection during Bridge Construction against Accelerating Erosion ChihHsien Lin1, a, KueiHsiang Cheng1,b and Cheng Chao1,c 1 The Green Engineering Technical Research Center, Kao Yuan University, Taiwan (R.O.C.)82151 ahaoyu9999@gmail.com, bkhcheng@cc.kyu.edu.tw, cbmwms17@yahoo.com.tw Keywords: Accelerating erosion, SMS-2D, Scour protection Abstract.
This study uses SMS-2D unsteady flow model to simulate old pier into the pre-construction setting due to their contraction flows and further necessary hydraulic structures and facilities for temporary protection during bridge construction against accelerating erosion for CheCheng Bridge in PenTung country, Taiwan as case study, thus, providing reliable information and references for bridge engineers.
Bridge erosion mechanistic phenomenon around pier[4] Results and discussion Surface Water Modeling System is two-dimensional flow simulation software (SMS-2D), developed by the United States Army Corps of Engineers Hydraulics, Laboratory (USACEWES), Environmental Modeling Research Laboratory (EMRL) of Brigham Young University, and the United States Federal Highway, Administration (FHWA), using the finite element method with the continuous flow equation and momentum equation solving, the topographic distribution grid, the rivers around the structure as a boundary, to analyze the local river flow field, water depth, the water of higher phenomena, to better explore the piers or structures near the water level, flow velocity, and local eddy current situation[7].
Furthermore, location-oriented scour by over-designed temporary protection setting likely result in accelerated erosion of other piers in downstream and excessive cost, thus, the reasonable size of apron depending local scour in the main deep trough in river bed can effectively protect critical pier, providing reliable information and references for bridge engineers.
[3] Tai-Sheng Tung, in: Two-Dimensional Simulation and Comparison of Flow Depths around Bridge Piers in Wu River, Dep. of Civil and Hydraulic Engineering, FengChia University, Master's thesis, Taiwan (2000).
Online since: September 2007
Authors: Qing Kai Han, He Li, Jie Liu, Zhao Hui Ren, Bang Chun Wen
It is rather valuable to study such a special kind of friction vibration in engineering.
The vibration tamping technology is widely applied in civil engineering
All these are attractive to many engineers.
At the same time the depletion of energy and metal materials is much lower than that of conventional mechanical engineering.
Han: Analytical method and engineering application in nonlinear vibration theory (Northeastern University Press, China, 2001)
Online since: August 2016
Authors: Xing Sheng Li, Yong Sun
Cutterheads equipped with picks are commonly used for mechanized excavation in civil and mining industries.
A challenge faced by engineers is that these three angles cannot be set simultaneously in manufacturing.
Online since: January 2014
Authors: Fan Yuan Han
The Building Energy Conservation Design Responses of Urban Underground Space Fanyuan Han1 1 School of Civil Engineering, The university of Heilongjiang Science and Technology; No.111, Songshan Road, Harbin 150090; Tel: 0451-82306037; Fax: 0451-82306034; Email: 86435235@163.com Keywords. public underground space; Energy Conservation; Architecture design; Responses Abstract.
With the development of our country's economic construction, all kinds of underground space (such as the tunnel, the subway, underground supermarket, underground mall, underground garage and civil air-defense construction) are more and more commonly used and human activities in underground construction are accordingly increased.
Online since: March 2013
Authors: Zi Xue Lei, Yu Hang Han, San Sheng Dong, Jun Qing Guo
Analysis of seismic performance of RC frames with centrally reinforced columns Zixue Lei 1/2, a, Yuhang Han 1,b , Sansheng Dong 1/2,c and Junqing Guo 1,d 1 School of Civil Engineering, Chang’an University, Xi’an, Shaanxi, 710061, China, 2Key Laboratory of Bridge Detection & Reinforcement Technology, Ministry of Communications, Chang’an University, Xi’an 710064, China a thunderleizixue@126.com, b444783924@qq.com, c dongsansheng9225@163.com, d guojunq101@sohu.com Keywords: Centrally reinforced column, Strength, Ductility, Pushover.
[8] Beijing Civil King Software Technology Co.
Online since: March 2013
Authors: Andrzej Zbrowski, Andrzej Majcher
Such parameters allow for full simulation of the conditions of strike even with heaviest birds, with the possibility to reconstruct the maximum flight speed reached by the majority of civil and military aircrafts.
Wring: Wildlife Strikes to Civil Aircraft in the United States 1990-2006, Federal Aviation Administration National Wildlife Strike Database, No. 13, July 2007
Control Engineering Practice 11 (2003) 1099-1111
Online since: May 2016
Authors: Iyad Abrahoim
Local stress of reinforced concrete elements Iyad Abrahoim1, 1 Faculty of Civil Engineering STU in Bratislava, Department of Concrete Structures and Bridges, Radlinskeho 11, 813 68 Bratislava, Slovakia iyad.abrahoim@stuba.sk, Keywords: anchors, concentrated force, distribution area.
It is for the direction b for the direction d (5) The highest strain s in the reinforcement is stated in the table 1 and it depends on maximum crack width wmax in the design distribution area of c. [3] When designing the load-bearing constructions of civil structures, we take the value wmax = 0,2 mm ... in the analysis of concentrated pressure in foundations and under the anchoring slabs of adhesive pre-stressed reinforcement, wmax = 0,3 mm ... in the analysis of concentrated pressure in other cases.
Online since: August 2004
Authors: In Mo Lee, Gyu Jin Bae, Joo Gong Lee, Sung Won Lee
Citation & Copyright (to be inserted by the publisher) Soundness Evaluation of a Tunnel Concrete Lining by Using the Hammer Impact-Induced Sound Wave In-Mo Lee 1 , Gyu-Jin Bae 2 , Sung-Won Lee 2, Joo-Gong Lee 3 1 Dept. of Civil Eng., Korea Univ., 1, 5-Ga, Anam-Dong, Sungbuk-Gu, Seoul, 136-701, Korea 2 KICT, 2311, Daehwa-Dong, Ilsan-Gu, Goyang-Si, Gyeonggi-Do, 411-712, Korea 3 Dept. of Civil Eng., Korea Univ., 1, 5-Ga, Anam-Dong, Sungbuk-Gu, Seoul, 136-701, Korea Keywords: Tunnel, Concrete lining, Wavelet transform, Cavity, Crack, Soundness index Abstract....
However, most of these techniques require sophisticated measuring techniques as well as complicated analyses; unless well trained engineers are fully involved in testing from beginning to end, the results of the tests are often questionable.
Online since: June 2014
Authors: Xin Ping Hou
Wall Energy-saving Reconstruction of Existing Buildings of Tai’an City Ningyang County and Countermeasure Research Xinping Hou Dept of Architecture and Mechanical Engineering, Taishan University, Tai’an, Shandong,271021,China hou_xinping@126.com Keywords: Existing Buildings; Energy-saving Reconstruction; Countermeasure Research Abstract: This paper analyzes the present situation of the existing buildings in Ningyang county of Tai'an city and researches problems faced by Ningyang in energy refurbishment for the existing buildings. it is concluded that the county wall energy saving renovation of obstacles, and then analyzes its countermeasures.
Current Situation of the Ningyang County Energy-saving Reconstruction of Existing Buildings Energy consumption situation and analysis of the features.In Ningyang county city civil buildings as the object, according to preliminary statistics TaiAnShi relevant units of the data collected from the Ningyang county city scale of existing buildings, total of 2012 actual existing housing construction (built before 2009) area of about 3.8351 million ㎡, the residence is 2.8254 million ㎡, 73.7% of the total area of buildings, public buildings and other structures in total 1.0097 million ㎡, accounting for 26.3% of the total area of the buildings; Structure is given priority to with masonry structure.
(Table 1) Table 1 Existing civil construction summary form of the Ningyang county Start-stop Fixed Number of Year Completed Total Building Area (Ten Thousand㎡)  Residential building (Ten Thousand㎡) Proportion of Each Structure General Public In Its Residence Others Among them the Central Heating Reinforced Concrete Structure Masonry Structure Office Building Central Heating Central Air Conditioning System Heating 1970-1979 1.54 1.54 0.35 1.25             1980-1989 13.48 8.86 4.46 6.6   4.62   1.92 2.90% 97.10% 1990-1999 68.86 30.93 8.24 14.3 1.11 36.15 1.78 19.49 6.80% 93.20% 2000-2003 66.95 20.97 7.42 11.35 0.46 42.74 3.24 13.69 11.70% 88.30% 2004 39.58 8.23 1.65 3.35   31.35   2.18 8.70% 91.30% 2005 26.85 8.56 0.53 0.36 0.17 18.12 0.17 3.36 3.40% 96.60% 2006 21.87 5.86 1.76 2   16.01   2.78 11.80% 88.20% 2007 33.72 5.53 1.42 1.66   28.19   7.95 8.20% 91.80% 2008 67.1 3.48 0.4 0.22   63.4 0.22 23.26 0.60% 99.40% 2009 43.56 1.6 1.6   1.2 41.96   6.55 4.70% 95.30% Combined meter
Online since: August 2013
Authors: Meng Yan, Yuan Yuan, Xiang Lin Zeng, Yong Qing Yang
Research on Loading Test Scheme of Vehicular Bridge-Footbridge Combined Double-deck Cable-stayed Bridges Yan Meng a,Yang Yongqing b,Yuan Yuan c,Zeng Xianglin c School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China a511324910@qq.com, byangyongqingx@home.swjtu.edu.cn,c1009068131@qq.com Keywords: double-deck cable-stayed bridge; footbridge; vehicular bridge; loading scheme; dynamic load test; static load test; coupling effect Abstract: In order to check whether the bridge structure is in good working condition, meeting the requirements of carrying capacity and traffic capacity, loading test should be conducted to the Huiketing No.1 Bridge in Mianyang city.
Fig.  1 The elevation of Huiketing No.1 bridge in Mianyang city [cm] Finite element model and working conditions The static analysis of main bridge is conducted by MIDAS Civil 2012.