Search results

Pilot Study of the Effect of Admixtures in Fine-grained Cement-based Composites on Volume Changes and Fracture Parameters Vlastimil Bílek Jr.1,a, Libor Topolář2,b, Hana Šimonová2,c, Barbara Kucharczyková2,d, Ivana Havlíková2,e, Luboš Pazdera2,f and Zbyněk Keršner2,g* 1Brno University of Technology, Faculty of Chemistry, Purkyňova 464/118, 612 00 Brno, Czech Republic 2Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, 602 00 Brno, Czech Republic axcbilekv@fch.vutbr.cz, btopolar.l@fce.vutbr.cz, csimonova.h@fce.vutbr.cz, dkucharczykova.b@fce.vutbr.cz, ehavlikova.i@fce.vutbr.cz, fpazdera.l@fce.vutbr.cz, gkersner.z@fce.vutbr.cz Keywords: fine-grained cement-based composite, slag, fly ash, metakaolin, fracture test, impact-echo, “double-K” model Abstract.
The partial replacement of cement in concrete by an alternative admixture is a current topic in materials engineering.
Introduction The replacement of part of Portland cement in concrete by secondary raw materials is a topical issue in materials engineering.
Fracture tests were carried out using a Heckert FPZ 10/1 testing machine within the range of 0–400 N at a laboratory at the Institute of Building Testing, Faculty of Civil Engineering, Brno University of Technology.
Xu, A comparative study on five approaches to evaluate double-K fracture toughness parameters of concrete and size effect analysis, Engineering Fracture Mechanics. 78, (2011) 2115-2138.

A Discrete Element for Modeling Masonry Vaults CALIÒ Ivo 1,a, CANNIZZARO Francesco 1,b and MARLETTA Massimo1,c 1 Department of Civil and Environmental Engineering, University of Catania, Catania, Italy a icalio@dica.unict.it, bfrancesco.cannizzaro@dica.unict.it, cmmarletta@dica.unict.it Abstract The assessment of the seismic response of historical masonry buildings represents a subject of considerable importance but, at the same time, of very difficult task.
In the past many authors developed simplified or alternative methodologies that, with a reduced computational effort, should be able to provide numerical results that can be considered sufficiently accurate for engineering practice purposes.
In order to estimate the seismic vulnerability of an existing historical building and to ascertain if a structure requires a seismic upgrade, a structural engineer needs simple and efficient numerical tools whose complexity and computational demand must be appropriate for the practical engineering purposes.
"A simplified model for the evaluation of the seismic behaviour of masonry buildings," in Proc. of Tenth International Conference on Civil, Structural and Environmental Engineering Computing, August 30 - September 2, Rome, Italy
Univ. of Catania, PhD Thesis in Structural Engineering - Cicle XXIII

Study on vertical earth pressure of slab culvert under high embankment Bao-kuan Ning He Fan Lei Gong Guo-Qing Liu School of Architecture and Civil Engineering, Shenyang University of Technology, Shenyang 110870, China; email: ningbk@126.com Keywords: embankment culverts; structure; vertical earth pressure; slab culvert; numerical simulation.
Abstract: With the increasing of embankment culvert engineering applications, there has been due in part to the structural design is too conservative and not economic or select unreasonable structural form, leading to the phenomenon of cracking or even collapse of the culvert structure, and the phenomenon has seriously affected the normal use of the highway.
The results can reference for the study of the structural design of the embankment culverts security. 0 Introduction Compared with bridge, the construction of embankment culvert is simple, with advantage of saving engineering cost.
Investigation of the vertical earth pressure on projecting conduit and underground chamber under a high embankment [J].Chinese Journal of Geotechnical Engineering,1981, 3(1):3–15
China Civil Engineering Journal,1982,(03) [6] She Xuesen.

Numerical Analysis on Mechanical Properties of Beams Reinforced by CFRP Laminates Ning Zhuang 1, a, Haodong Sun 1,b and Song Ge1,c 1 College of Harbor, Coastal and Offshore Engineering, Hohai University, Nanjing, China azhuangning1977@163.com, b741243351@qq.com, c287919619@qq.com Keywords: Carbon Fiber Reinforced Plastic (CFRP); Numerical analysis; Failure model; Bearing capacity Abstract.
Carbon Fiber Reinforced Plastic (CFRP) has been widely used in large-scale concrete infrastructure’s reinforcement and renovation because of its low weight and high strength, which promotes CFRP application in the field of civil engineering.

Introduction Dynamic responses analysis for a building under seismic excitations is still an intriguing problem for civil engineering community, till now, most of the researches focus on the cases of one dimensional translational seismic excitation, however for a real earthquake, it usually comprised of multi-dimensional complex earth motions.
Proc. of Japan Conference on Earthquake Engineering, 1978
Engineering Mechanics, 2010(SI):20-22(in Chinese)
Earthquake engineering and engineering vibration, 1994,14(4):1-5
Earthquake engineering and engineering vibration, 1998,18(4):76-81.

Infrared Changes in the Progressive Failure and Stress Distribution of Bolted Rocks Yongjun Zhang1,2, a, Liqian An 3,b and Nianjie Ma4,c 1School of Civil Engineering, Qingdao Technological University, Qingdao 266033, China 2 State Key Laboratory for GeoMechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou, 221008, China 3 School of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing, 100083, China 4 Faculty of Resources and Safety Engineering, China University of Mining and Technology, Beijing, 100083, China azhangyj_bull@163.com, balq@cumtb.edu.cn, dnjma5959@126.com Keywords: Infrared thermal image, Bolt support, Thermo-mechanical coupling, Stress concentration, Stress relaxation, Infrared precursor.
At present, there are three main methods for bolt supporting design: engineering analogy, theoretical calculation and numerical simulation [1].
Along with the wide application of the numerical method in mining engineering, using numerical simulation method for bolt supporting design in coal roadway also has been developed rapidly.
The TIR radiation detection technology has a broad prosperity in the field of mining engineering, underground engineering and side slope engineering.
Acknowledgment Financial supports from Natural Science Foundation of China under Grant no. 50904040, the National Basic Research Program of China under Grant no.2011CB201204, the China Postdoctoral Science Foundation under Grant no.20090461159 and State Key Laboratory for GeoMechanics and Deep Underground Engineering under Grant no.

Engineering Mechanics, 2006,23(8): 12-18.
Engineering Mechanics, 2006, 23(12): 30-35.
Engineering Structures, 1999, 21: 149-167
Journal of Engineering Mechanics, ASCE, 2004, 130(8): 952-960
China Civil Engineering Journal, 2002, 35(4): 40-46.

Pedigree cluster analysis of micro-structural parameters of loess Lingxia Gao 1,2,a, Xiangjun Yang3,b, Shunqun LI 4,c and Likun Qin2,d 1 Institute of Geotechnical Engineering, Dalian University of Technology, Dalian 116024, China 2 Department of Civil Engineering, Dalian Nationalities University, Dalian 116600, China 3Designing Institute of Municipal Engineering Exploration Survey, Dalian 116011, China; 4 Department of Civil Engineering, Tianjin Institute of Urban Construction, Tianjin 300384, China a gaolingxia2006@126.com, b xiangjunyang2003@126.com, clishunqun@sina.com, dqinlk89@163.com Keywords: loess; micro-structural parameters; pedigree cluster analysis Abstract.
Introduction There is inherent connection between engineering properties of loess and its corresponding micro-structure[1,2].
References [1] ZHAO Jingbo: Journal of Sedimentation, Vol.2 (2003), p.198 -204(in Chinese) [2] HU Rui-lin, WANG Si-jing, LI Xiang-quan, et al.: Hydrogeology and Engineering Geology.
No. 20(1999), p. 5-8(in Chinese) [3] SHI Bin, JIANG Hong-tao: Chinese Journal of Rock Mechanics and Engineering, Vol.6, No.20(2001), p.864–870(in Chinese) [4] Kawaragi, Chie, Yoneda, Tetsuro, Sato, Tsutomu, et al.: Engineering Geology.
Vol.1-2 No.106 (2009), p. 51-57(in Chinese) [5] LIU Zhi-bin, SHI Bin, WANG Bao-jun: Chinese Journal of Geotechnical and Engineering, Vol.

Evolution Process of Residential Xiaoyuan Space Forms over the Past 60 years——The Case Study of Residential Xiaoyuan in Jiaodong Coastal Areas and the Rural Areas in Yantai Longkou Fang Hui1, a , Jingqing Lv2, b 1College of Civil Engineering and Architecture, Shandong University of Science and Technology, Qingdao, Shandong, 266510, China 2College of Civil Engineering and Architecture, Shandong University of Science and Technology, Qingdao, Shandong, 266510, China afanghuinrs@163.com ,b88032556@163.com Keywords: Residential Xiaoyuan; ZhengFang; Courtyard; Wing; Pick eaves Abstract.

Comparison of the possibility of using the accumulation underground storage under buildings Radek Partika1,a, Miloš Kalousek2,b 1,2Institute of building structures, Faculty of Civil Engineering, Brno University of Technology Veveri 331/95, 602 00 Brno, Czech Republic apartika.r@fce.vutbr.cz, bkalousek.m@fce.vutbr.cz Keywords: Thermal, underground storage, Enthalpy, Abstract.
Depatment of civil engineering – University of Saskatchewan, Saskatoon, Canada 1995