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Intorduction With the continuous development of urbanization and infrastructure construction in our country, excavator, as one of the main engineering machinery in engineering construction, is developing rapidly[1].
University of Alberta Department of Civil & Environmental Engineering, STRUCTURAL Engineering Report No.265 (2006)

Research on the Application of Ground Source Heat Pump Technology in Timber Structure Zhihui Bian1, 2,a, Tiecheng Wang1,b, Shiyong Zhao 1,2,c and Xianfa Guo2,d 1School of Civil Engineering, Tianjin University, Tianjin, China 2Hebei Academy of Building Research, Shijiazhuang, China abzhbyh@126.com, bwangtiecheng@eyou.com, c2004zsy@sina.com, d61366555@qq.com Keywords: ground source heat pump technology; resource-saving; timber structure Abstract.
Due to the construction and structure are complex, and the air conditioning works involve many construction departments, it requires the coordination of all construction departments, and in this way the task of the installation of air-conditioning engineering will be more high-quality and efficiently completed.
The engineering total cooling load is 621kW, engineering cold indicators is 106.7W/m2.

The Research of Vibration Characteristic about Sucker Rod String LI Bin1, a, WANG XU-dong2,b 1Mechatronic Engineering College, Southwest Petroleum University, Chengdu, China 2Drilling engineering research institute, Southwest oil company, Deyang, China aswpulb@126.com, bpotentialwxd2003@yahoo.com.cn Key words: Vibration characteristics; Finite element; analysis Abstract: During the reciprocating motion, the sucker rod string of the pumping wells will produce longitudinal vibration, lateral vibration and torsional vibration under various loads, the rod combination and structure often affect the fatigue fracture and releasing of the sucker rod string.
[6] Yu Qihao and Huang Yongzhu, Application of Model Test Analysis in Engineering Vibration System, China Journal of Beijing Institute of Civil Engineering and Architecture, 2007,23(1) :15-18

Application of GTN Model in Tensile Fracture of Pipeline Steel Lian Yeda1,a*, Wu Renqiang1, Zhang Bing1, Feng Tao1 1School of Mechanics and Civil Engineering&Architecture, Northwestern Polytechnical University, 710072, Xi’an, China a1443302326@qq.com Keywords: GTN damage model; X70 pipeline steel; unilateral notched tensile test; finite element; damage model parameters Abstract.
Low alloy steel welding and engineering application[M].
Experiment and numerical simulation of dynamic fracture behaviors of high performance pipeline steel[J].Ordnance Material Science And Engineering, 2017.40(2):25-29
Development and applicat ion of ductile damage[J].Materials Engineering, 2011,5(1):92-97

Stiffness Analysis of Welded Spherical Joints with Rib Stiffeners Xing Wang1,a and Fan Wang1,b 1School of Architecture and Civil Engineering, Ningbo University of Technology, Ningbo, Zhejiang, 315016, China awyuqi425@163.com, bwxwfyuqi@163.com Keywords: Welded hollow spherical joint, Rib stiffeners, Axial flexibility, Flexural stiffness.
For practical engineering，rib stiffeners usually are set for the hollow spherical joint which diameter larger than 300mm or which force large.
Dong: Tangent stiffness matrix of members of reticulated shell considering joint’s stiffness of shell pole tangent stiffness matrix, Engineering Mechanics, No.4, Vol.16 (1999), p. 24-32 [4] H.J.
Wang: ANSYS numerical analysis of engineering structures, Beijing: China Communications Press, China (2007).

Research progress on ultraviolet aging of asphalt and asphalt mixtures Huixia Li1, 2, Jian Wang2 and Fengxia Li3 1Department of civil engineering Xi’an University of Architecture and Technology Xi’an, China 2 Department of traffic engineering Henan University of Urban Construction Pingdingshan, China 3 Department of architecture Xi’an University of Architecture and Technology Xi’an, China awangyuxuan007@gmail.com, bwangjian@hncj.edu.cn, csamara@hncj.edu.cn Keywords: ultraviolet aging, asphalt, asphalt mixtures, research progress, testing methods Abstract.
Pavement engineers understand the need to model the effects of short-and long-term aging of asphalt-aggregate mixtures in structural design procedures, and while some research has addressed this need, as yet no standard procedure has emerged to address it.
Engineering and Industrial Experiment Station (University of Florida，Gainesville, FL)

Exploration on the Underpinning Technology of One Masonry Structure Henglin Lv1,a, Chunhua Xu1,b , Shuchun Zhou1,c, Yuexing Zhu2 and Shijie Ding3 1 School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221008,China 2 Xuzhou Construction Engineering Testing Center, Xuzhou 221000,China 3 Peicheng Colliery, China Resources Tianneng Xuzhou Coal & Power Co.
Engineering Background and Overall Scheme One boiler room of MCH hospital is a single-story reinforced concrete bent structure with a height of 7.8m.
On the premise of meeting the use function of buildings, the original members such as ring beams, constructional columns and foundations should be used as much as possible to form composite structure so that the damage to the original structure and engineering quantity can be reduced.

Scott 3 1 Department of Mechanical Engineering, Hong Kong Polytechnic University, Hong Kong, China 2 Department of Electrical Engineering, Hong Kong Polytechnic University, Hong Kong, China 3 Cooperative Research Centre for Advanced Composite Structures Limited, Melbourne, Australia Keywords: Composites, Fibre-Optic Bragg Grating, Vibration Monitoring Abstract.
Due to the increased demand for the development of structures with a high level of safety, the utilisation of embedded structural health monitoring sensors is attracting much attention in all engineering and infrastructure applications.
However, the measurements have mainly been restricted to static loading situations and in a very low frequency range (< 1 Hz), particularly for civil infrastructure applications.
Wei: Composites Part B: Engineering, Vol. 32 (2001), p. 33

China; 2School of Civil Engineering, Zhejiang University, Hangzhou, 310058, P.
Rock Mechanics and Engineering, Vol.21 (2002) No.2, p.451 (in Chinese)
Geotechnical and Geoenvironmental Engineering, Vol.131 (2005) No.11, p.1399
Rock Mechanics and Engineering, Vol.21 (2002) No.3, p.388 (in Chinese)

Leakage Diagnosis Method for Pipelines Based on Multi-weight Neural Network Chen Zhigang1,a, Zhong Xinrong2,b, Xie Yidong1,c 1Beijing Engineering Research Center of Monitoring for Construction Safety, Beijing University of Civil Engineering and Architecture, Beijing, China 2CCDC ChangQing DownHole Technology Company, Xi’an, China agangzi22@163.com, b23782166@qq.com, cxyd@bucea.edu.cn Keywords: Leakage diagnosis, Gas pipelines, Multi-weight neural network, Information entropy.
[2] LI Junhua, SUN Zhaochen, CUI Li, Leakage Localization for Pipelines Based on BP Neural Network and Experimental Verification, ENGINEERING MECHANICS, Vol.27, no.8, pp. 169-173,2010
Chinese Journal of Mechanical Engineering, Vol.37, No. 6, pp. 94~98, 2001.