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The Application and Development of Ultra-High-Performance Concrete in Bridge Engineering LiJun Jia1, a,HaiBo Hui1,b ,QianHui Yu1,c , Yan Song 1,d, 1 College of Civil Engineering, Tongji University, Shanghai, China ajialj@tongji.edu.cn, bhuihaibo89@126.com, cyuqianhui1990@126.com, d songyan1988@gmail.com Keywords: Ultra-High Performance Concrete, Materials and production, Mechanical properties Abstract.Ultra-High Performance Concrete (UHPC) is a relatively new kind of matierials with excellent mechanical and durability performance compared with the conventional concrete.
UHPC has been widely used in Switzerland, Germany, France, Slovenia, Austria in bridges engineering since the 21st century and some of them are listed in table 5.
Conclusions With the high compressive strength and low creep effect, UHPC provides a more reasonable choice for the design in the bridge engineering.
Thus considering all the costs in the term of life-cycle, the overall cost of the projects may be significantly reduced, which indicates UHPC has a big space for development in long-span bridge engineering.

Earth construction and sustainability BARBOSA Normando Perazzo1a, GHAVAMI Khosrow 2b 1 Full Professor Civil and Environmental Engineering Department Centro de Tecnologia, Universidade de Federal da Paraíba Cidade Universitária, 58059-900 João Pessoa – PB 2 Full Professor Civil Engineering Department PUC-Rio, Rua Marques de São Vicente, 225 Gávea, 22453-900-Rio de Janeiro - RJ a nperazzo@ct.ufpb.br b ghavami@puc-rio.br Key words: Earthen construction, sustainability, stabilizer Abstract.
Architecture and engineering are closely linked to these three topics.
To cease with poverty, the first step is to produces houses to every family around the world, responsibility of architects and engineers.
Thus, a product widely used by architects and engineers immediately causes three major impacts on the environment.
Dissertação de Mestrado em Engenharia Civil, Universidade Federal da Paraíba, Campina Grande, PB, (1993)

Development and Advance in Adding-storey Retrofit of Existing Buildings in China Jian-ping Gao, Wei Chen East China Jiaotong University, Nanchang, Jiangxi,330013, China gaojianping@ecjtu.jx.cn, chenwei@ecjtu.jx.cn Keywords: existing building, adding-storey, retrofit, maintenance, remodeling Abstract: Residential houses and civil buildings in China were mainly low-rise buildings before 1980s.
Mechanics and Engineering.
Study and Application on a New Transfer Structure in Extension-story Engineering of Buildings.
World Information on Earthquake Engineering.

Research on Coupling of Seepage and Stress Fields with Variable Modulus of Elasticity Xushu Sun1,2, a, Jianlin Li2,b, Shi Zhou2,c, Junlei Bai2,d 1College of Water Resources and Hydroelectric Engineering, Wuhan University, Wuhan, Hubei 430072, China 2College of Civil Engineering and Architecture, China Three Gorges University, Yichang, Hubei 443002, China asunxs110@126.com, bljl@ctgu.edu.cn, czhou6568@sina.com, dbjlbjl8888@126.com Keywords: Triaxial test, Coupling, Elastic modulus, Permeability, Slope Abstract.
References [1] Yanqing Wu, Guangzhu Cao, Weihua Ding: Chinese Journal of Rock Mechanics and Engineering, Vol. 24(2005), p. 98-101.
[4] Linde Yang, Xiaobo Yan, Chengxue Liu: Chinese Journal of Rock Mechanics and Engineering, Vol. 26(2007), p. 473-477.
[7] Mingqing You: Chinese Journal of Rock Mechanics and Engineering, Vol. 22(2003), p. 53-60.
Seepage theory for dam engineering.

Rheological Analysis of Oceanic Concrete Structure Gao Ruia , Yang Ling Qiangb School of Civil Engineer and Architecture, University of Jinan, Jinan, Shandong province, China acea_gaor@ujn.edu.cn, bcea_yanglq@ujn.edu.cn Keywords: Concrete structure; Rheological mechanics; Crack propagation Abstract.
Rock mechnics problem in hydrolic engineering.
Journal of hydraulic engineering, (1) (1985),p.55-72
Journal of hydraulic engineering, (1)( 1985), p.29-37
Chinese Journal of Rock Mechanics and Engineering, 24 (2) (2005)， p.212-216.

Typical brackets dimensional numerical simulation of the wooden structure Weichao Ao1, a, Qingfang Niu1, b，Guanfeng Qiao1, c,Tieying Li1,d 1 College of Architecture and Civil Engineering,Taiyuan University of Technology, 79 Yingze West Street, Wanbailin District, Taiyuan, 030024,China a873937967@qq.com, b32824209@qq.com, c775952455@qq.com, dlty680412@163.com Keywords: Ancient wood structure, Brackets, ABAQUS numerical analysis, Tenon-Mortise connection .
Currently, the repair of ancient wooden building engineering practice in many cases is still relatively primitive methods that rely on the experience with its reinforced protection.
Engineering Constants defined directly elastic modulus E1,E2,E3, Poisson's ratio μ12 , μ13,μ23, shear modulusG12,G13,G23 , nine elastic constants.
This selection method Engineering Constants[3].
Engineering Fracture Mechanics 98 (2013) 137–152 [3] Zhiyong Chen, Enchun Zhu,etc: Structural Performance of Typical Beam-Column Joints in Yingxian Wood Pagoda - an Experimental Study.Key Engineering Materials Vol. 517 (2012) pp 669-676 [4] CHEN Zhi-yong, ZHU En-chun: Numerical simulation of mechanical behaviour of wood under complex stress.

Anchorage technology of the umbrella-shape soil anchor Xia Hongbing, Zhang Lei Zhang Yijun (College of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan, Anhui, 232001) Keyword: the umbrella-shape soil anchor; immediate anchoring; structure of the umbrella-shape soil Anchor; the construction of umbrella-shape soil anchor Abstract: For shortcomings of more construction process ,long time of construction and no immediately bearing to soil anchor of steel stranded packed by cement, it is advanced the inside-opened umbrella-shape soil anchor.
But application of the umbrella-shape soil anchor is still in the small-scale test stage, It still is a long way for largely application in engineering.
[3]Chen Wei-hua, Li Sheng-jun, Zhu Fang-qing, Li Zhen.Experiment Research and Capacity Analysis of Prestressed Anchor in Haihe River Embankment Engineering [J], 2008(3)
Several Mechanical Problems of Soil Anchor [M]//Anchoring Technology in Geotechnical Engineering.
Non Excavation Engineering [M].

Monitoring and Treatment during the Water Leakage Process of a Deep Subway Station Pit Congshi Wu1,a, Liu Gong2,b , Weida Shen3,c 1, 2,3School of Civil Engineering and Architecture, Changsha University of Science & Technology, Changsha, Hunan, 410114, China awucosh@163.com, bgongliu830@163.com, ctturbo@163.com Keywords: Underground Water Level, Water Leakage, Deep Foundation Pit, Subway Station.
Engineering Geology.
References [1] Jianhang Liu and Xueyuan Hou: Excavation engineering handbook[M], Beijing:China Architecture and Building Press, 1997.
(in Chinese) [2] GB50497-2009 Technical Code for Monitoring of Building Foundation Pit Engineering [S],Beijing:China Architecture and Building Press, 2009.
[5] Xiaowei Wang, Huawei Tong and Zhiqiang Li : Construction Technology,May.2009, Vol. 38 No.5(in Chinese) [6] Xianhua Zhu, Hai-hong Mo and Juan Huang: Guangdong Architecture Civil Engineering, May.2009, No.5(in Chinese)

The Grouting Technology of Large -section Highway Tunnel in Water-rich Karst Formations Chao-Yue ZHOU1,a, Yong FANG2,b Ya-Peng FU1,c, Ge CUI1,d 1Master candidate, Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Dept. of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China 2Associate Professor, Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Dept. of Civil Engineering , Southwest Jiaotong University, Chengdu 610031, China aemail: 578813932@qq.com, bemail: fy980220@swjtu.cn, cemail: fyp19900328@foxmail.com, demail: cuige114@126.com, Key words: Large- section; Highway tunnel; Water-rich karst; Grouting Abstract: It is a challenge to deal with karst in the construction of large cross-section tunnel.
Engineering Situation Shuangbei Tunnel is located in Shapingba district, Chongqing city.
First phase of the treatment engineering of inverted arch water was completed on April 22, 2013.
The Concise Manual of Grouting Engineering in Underground Construction [s] Science press publishing,1998.
Journal of Railway Engineering, 2002,(4):61-67.

Bond Strength of Steel Bars in Sustainable Concrete Made with Recycled Aggregates Panumas Saingam1,a*, Akrar Min2,b, Ali Ejaz3,c, Qudeer Hussain4,d 1Department of Civil Engineering, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand 2Master student, Thammasat School of Engineering, Faculty of Engineering, Thammasat University Rangsit, Klong Luang, Pathumthani, Thailand 3National Institute of Transportation, National University of Science and Technology, Risalput, Pakistan 4Center of Excellence in Earthquake Engineering and Vibration, Department of Civil Engineering, Chulalongkorn University, Bangkok, Thailand a*panumas.sa@kmitl.ac.th, bakrar.min1@dome.tu.ac.th, cenggaliejax@gmail.com, debbadat@gmail.com Keywords: Bond strength; Sika AnchorFix; Recycled concrete aggregates; Recycled brick aggregates; Pull-out test.
Guerreiro, Structural, material, mechanical and durability properties and behaviour of recycled aggregates concrete, Journal of Building Engineering. 6 (2016) 1–16. https://doi.org/10.1016/J.JOBE.2016.02.003
Rad, Flexural strengthening of reinforced concrete beams with NSM-CFRP bars using mechanical interlocking, Journal of Building Engineering. 31 (2020) 101422. https://doi.org/10.1016/J.JOBE.2020.101422