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Importance of spatial variability of seismic ground motion effects on long beams response: Journal of Civil Engineering and Construction Technology Vol. 1(2010), p. 1-13 [2] Collier,C.J.
A comparative study of bridge damage due to the Wenchuan, Northridge, Loma Prieta and San Fernando earthquakes: Earthquake Engineering and Engineering Vibration, Vol. 8(2009), p. 251-261 [6] Fabio F.
Hollow bridge-pier properties for response spectrum analysis: Bulletin of Earthquake Engineering, Vol. 8(2010), p.1397-1420 [7] DONG Shengli ,LI Xiaojun and QI Xingju.
Study seismic semi-active control algorithms for simply supported beam bridge: Journal of Earthquake Engineering and Engineering Vibration, Vol. 27(2007), p.56-60 [8] WANG Junwen,LI Jianzhong and FAN Lichu.
Wenk.Capacity Design and Nonlinear Dynamic Analysis Of Earthquake Resistant Structures: 10th European Conference on Earthquake Engineering, Vol. (1995), p. 11-20

Comparative Study of the Non-Linear Dynamic Behaviour of Different Seismic Isolation Systems Hamouche Sabiha1,2,a*,Bennacer Lyacine1,b, Kernou Nassim2,c 1University of Ahmed Draia - Adrar, Laboratory of Energy, Environment and Information System, LEESI, Route Nationale No. 6, 01000, Adrar, Algeria 2Department of Civil Engineering, Faculty of Technology, Bejaia University, 06000, Laboratory of construction engineering and architecture, Algeria asab.hamouche@univ-adrar.edu.dz, bblyacine.bennacer@univ-adrar.edu.dz, cnassim.kernou@univ-bejaia.dz Keywords: Dynamic response analysis, Base isolation system, Seismic Isolation, Base shear, Time period, Storey drift, Storey displacement Abstract.
Ikhouane, An innovative isolation device for aseismic design, Engineering Structures. 32 (2010) 1168–1183
Ferrell, Stability of elastomeric seismic isolation bearings, Journal of Structural Engineering. 125 (1999) 946–954
Barghian, Base Isolation Systems – A State of the Art Review According to Their Mechanism, Journal of Rehabilitation in Civil Engineering. 8 (2020) 37–61
Bertero, Earthquake engineering: from engineering seismology to performance-based engineering, CRC press, 2004

(3) Engineers review the engineering reports to determine the actual amount of the completed works.
Contractor fails to engineer asked to participate in the review, review or amendment of engineers quantities as the amount of engineering contractor actually completed
This paper presents the estimation methods for engineers.
References [1] Jijiao Jiang, Naiding Yang, Xiaoxia Jia: Journal of Industrial Engineering/Engineering Management, 2005(1), p.77-80, In Chinese
[9] Lei Liu, Nan Li: China Civil Engineering Journal, 2009(8), p.134-138, In Chinese

Research on Blast-Induced Seismic Action Zhixin Yan1, 2, a，, Tai Bao3, a, Houyu Wang3, a 1Key Laboratory of Mechanics on Disaster and Environment in Western China (Lanzhou University), Ministry of Education, Lanzhou, 730000 2School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000 China 3College of Civil Construction Engineering of Guizhou University, Guizhou 550003 China 4Air Force Engineering Design & Research Bureau, Beijing 100077 China ayzx10@163.com, bbaotai@21cn.com, cluckmanwang@sina.com Keywords: blast-induced seismic wave; seismic effect; blast-induced ground vibration; blasting; blast-induced ground vibration action Abstract.
Under present technological conditions, blasting is the most competitive and economical engineering method.
In general railroad or road slope engineering, because of engineering characteristics and environmental protection requirements, the dosage of a single blast is always small and millisecond blasting is always the choice.
In intricate circumstances, such as urban areas, small-dosage short-hole blasting is often used for blasting engineering.
The Second International Conference on Engineering Blasting Technique.

Analysis on Setting Joints Technology in the Concrete Structure Buildings Yan’e Hao 1, a, Yongqiang Lan 2,b 1 College of Architecture and Engineering, Yan’an University, Yan’an, Shaanxi, 716000, China 2 Department of Construction, Yan’an University, Yan’an, Shaanxi, 716000, China a1455094646@qq.com, b99005037@qq.com Keywords: Concrete Structure; Setting Joint; Technical Requirements Abstract.
If reasonable joint is set in the design and construction of concrete structure buildings in advance as required, it can not only avoid or alleviate structural cracking and guarantee the quality of engineering construction, but also be good to improve the structural integrality and durability and lengthen service life of the buildings.
Then the major forms of setting joint technology are analyzed and discussed so as to provide references for relevant engineering technicians.
In order to alleviate or avoid cracking of concrete structure buildings and ensure the engineering quality, almost each building meet the problem of setting joint.
References [1] Mao Heqin, Construction of Civil Engineering [M], Wuhan: Wuhan University of Technology Press, 2012:111-112 [2] Li Haifeng, Handling of Construction Joints in Concrete Structures [J], Science and Technology Innovation Herald, 2009, (24): 32-33

The School of Civil Engineering of Tianjin University, Tianjin 300072, China; 2.
Tianjin Port Engineering Institute Ltd. of CCCC First Harbor Engineering Company Ltd.; Geotechnical Engineering Technique Key Laboratory in Communication Industry; Tianjin Municipal Port Geotechnical Engineering Technique Key Laboratory, Tianjin 300222, China) Key Words: ultrahigh energy dynamic compaction; safety distance; vibration velocity; vibration acceleration Abstract: By taking practical engineering cases as an example, this article judges the safety distance affected by ultrahigh energy dynamic compaction.
Research Institute of CCCC First Harbor Engineering Bureau (Now is Tianjin Port Engineering Institute of CCCC First Harbor Engineering Company Ltd.) is the earliest institute to conduct research.
The Sixth National Youth Geotechnical Mechanics and Engineering Conference and Geotechnical Engineering Series Seminar: 414-417., 2007
Exploration Engineering (Rock-soil Drilling Engineering), 2010(12): 61-64.

Temperature cracks of concrete engineering analysis and treatment measures GENG ZHANG Department of civil engineering , Xinjiang Construction Vocational Technology Institute ,Urumqi 830026 ,China. 260021488@qq.com Keywords: concrete temperature cracking temperature stress treatment measures.
Many retarding admixtures have increased workability, improve the function of plasticity in engineering practice should be more research into the experimental comparison and , simply by improving external conditions , may be more simple than the economy. 4 Early concrete curing Practice has proved that the common concrete cracks , most of surface cracks at different depths , mainly due to the temperature gradient caused by the sudden drop in temperature in cold areas also easy to form cracks.

Influence of Fiber Content on the Flexural Strength and Physical Properties of Abaca Fiber-Cement-Gypsum Board Mohd Iqbal1,a*, Said Amir Azan2,b, Muhammad Rizky Dharmawan3,c and L B Abhang4,d 1Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Syiah Kuala, Banda Aceh, Indonesia 2, 3Department of Civil Engineering, Faculty of Engineering, Universitas Syiah Kuala 4Mechanical Engineering Dept.
IOSR Journal of Mechanical and Civil Engineering, 12(3), pp.2320-2334
Journal of Building Engineering, 41, p.102433
Results in Engineering, 6, p.100126
Journal of Building Engineering, 31, p.101358

Simulation Study of Hydraulic Fracturing Mechanism with Heterogeneous Material YANG Tian-hong1, a，LIU Hong-lei2, b，YU Qing-lei3, c，Chen Shi-kuo4, d 1, 2, 3, 4The College of Recourses and Civil Engineering, Northeastern University, Shenyang, 110004 P.R.
This research has important theoretical and engineering value.
In rock engineering, such as mining engineering, underground and tunnel engineering, there also exist the coupled interactions of in-situ stress with the seepage pressure of groundwater [2].
A lot of instabilities of rock mass engineering are related to these interactions.
The mechanism of their instability is that under the influence of hydraulic-stress coupling, native cracks in rock mass and that induced by engineering disturbance will initiate, propagate and coalesce, leading to the instability of engineering.

The Failure and Falling of The Rock Mass in The Underground Mining Wen Zhao a, Shiyue Wu a and Wancheng Zhu b School of Resource & Civil Engineering, Northeastern University, Shenyang, P.R.C a wenneu@hotmail.com, bwczhu@mail.edu.cn Keywords: Rock masses, Underground mine, fracture, Falling Abstract.
Therefore, the study on the falling of roof rock has a very important engineering significance.
For mining engineering the failure of the rockmass does not mean that it falls.
Therefore, it is significant to predict how the fall of rock mass occurs in mining engineering.
But they can not be satisfied with the need of mining engineering from view of mining engineers.