Scientific Program

Conference Series Ltd invites all the participants across the globe to attend 2nd World Congress and Exhibition on Construction and Steel Structure Las Vegas, Nevada, USA.

Day 1 :

Keynote Forum

Halil Sezen

The Ohio State University
USA

Keynote: Collapse Performance of Steel Buildings with Infill Walls

Time : 10:00 - 10:30

OMICS International Steel Structure 2016 International Conference Keynote Speaker Halil Sezen  photo
Biography:

Halil Sezen has received his B.S., M.S., and Ph.D. degrees from the Middle East Technical University, Ankara, Turkey; Cornell University, New York; and University of California, Berkeley; respectively. Professor Sezen has been a faculty member at The Ohio State University since 2002. He has more than 130 technical publications. He has been serving as an assocaite editor and editorial board member of several journals including the ASCE Journal of Structural Engineering, and Engineering Structures.

Abstract:

Gravity load collapse response of five actual buildings is investigated by pyshically testing them and through computational simulations. Steel columns and load bearing walls were removed from the first story of three steel frame buildings and two masonry wall buildings. Four of the test buildings were located on the Ohio State University campus. The goal of the experimental and computational research is to better understand and model the building system resistance to loss of one or more vertical members, e.g., due to fire, seismic or blast loading, although the column and wall removal process in this research was load independent. The test data obtained from the field experiments were used to validate the computational models developed to simulate static and dynamic collapse response of existing buildings that may experience progressive collapse after sudden loss of columns or walls. This research investigated redistribution of internal forces within the building after the loss of vertical load carrying members. Current design guidelines and methodologies and potential analysis methods have been evaluated using the test data from field experiments. Progressive collapse response of test buildings was simulated using two and three-dimensional structural models and compared with the experimental data. This study showed robustness of different structural systems and potential contribution of structural components to collapse resistance under extreme loads.

Keynote Forum

Brian Uy

The University of New South Wales
Australia

Keynote: The ABC and D of Steel and Composite Structures: Australian Experiences

Time : 10:30-11:00

OMICS International Steel Structure 2016 International Conference Keynote Speaker Brian Uy photo
Biography:

Brian Uy is Professor of Structural Engineering and Director of the Centre for Infrastructure Engineering and Safety (CIES) in the School of Civil and Environmental Engineering at The University of New South Wales in 2013. He has co-authored over 600 publications including over 150 journal articles. He has delivered over 250 conference papers in 35 countries, including over 50 keynote/invited lectures in 15 countries and has been involved in research in steel and composite structures for over 20 years. Brian is Chairman of the Standards Australia Committee BD32 on Composite Structures which is currently preparing the Australian/New Zealand Standard AS/NZS2327 on composite structures for buildings. He has been the Chairman of the Australia Regional Group of the Institution of Structural Engineers since 2012 and the Chairman of the Australia Group of the International Association for Bridge and Structural Engineering (IABSE) since 2015. Brian is Chief Editor (Asia-Pacific) for Steel and Composite Structures and serves on the Editorial Board of Journal of Constructional Steel Research and Advanced Steel Construction. He also currently serves on the American Institute of Steel Construction (AISC) Task Committee 5 on Composite Construction and the IABSE Working Commission 2 on Steel, Timber and Composite Structures.

Abstract:

This paper will look at the important Advances, Behaviour, Construction and Design practices in the area of steel and composite structures focusing on Australian Experiences. A historical expose of the use of steel and composite structures will be provided, together with the Advances in material behaviour, particularly steel strengths. Significant research which has looked into the fundamental Behaviour of steel and composite structures over the last half century will also be provided. As is often the case, Construction often leads the way in innovation and this will also be highlighted in the paper. Finally, the paper will focus on Design and the significant developments in Australia to codify recent advances in steel and composite structures for buildings and bridges focusing on the soon to be released AS/NZS 2327 and AS/NZS 5100: Part 6 on steel and composite structures for buildings and bridges respectively.

Keynote Forum

Cheng Yu

University of North Texas
USA

Keynote: Screw connections in cold-formed steel clip angles subjected to uplift forces

Time : 11:00- 11:30

OMICS International Steel Structure 2016 International Conference Keynote Speaker Cheng Yu photo
Biography:

Cheng Yu is an Associate Professor in the Construction Engineering Technology program at the University of North Texas. He completed his PhD in Civil Engineering from the Johns Hopkins University. He is the Author of numerous articles on cold-formed steel behavior and design and serves on the AISI Committee on Framing Standards.

Abstract:

The paper presents a test program aimed at investigating the pull-over strength of screws installed on the anchored leg of the cold-formed steel clip angle connectors. Initial confirmatory tests showed that the tested pull-over strength was significantly less than the predicted values that were determined using AISI S100 (2012). Therefore, additional specimens were tested in order to develop an appropriate design method for the pull-over strength of screws used in CFS clip angles. The test results indicated that the pull-over strength of screws when used in clip angles would experience 50% reduction in nominal strength. A proposal to revise the current design provision in AISI S100 was presented in this paper along with complete details of the test program.

  • Track 1: Construction Engineering
    Track 2: Structures
    Track 5: Civil Engineering
Biography:

Akinobu Kano has completed his Bachelor’s degree from Tokyo University of Science, Tokyo Japan, in 2016. He is now a Master’s course student at Tokyo University of Science. 

Abstract:

The innovated vibration control device called as scaling frame “SF” structure has been proposed by the authors, and the SF structures are applied to low-rise wooden structures already. This paper aims to investigate the applicability of SF structure on steel frames. Herein, SF structure consists of beam-column frame, diagonal bracing and SF device installed. SF device is made of Steel or aluminum. Vibration energy is absorbed by the plastic behavior of the diagonal deformation of SF device. In previous study, the experimental study on SF device and steel frame specimen, with SF installed, were conducted to clarify the seismic response and seismic mitigation effect. Analytical method has been suggested from observation of test results. By comparing the test results, the proposed method shows good agreement with the test results. Furthermore, the enormous past studies have suggested prediction method of maximum seismic response of vibration control frames. This study aims to develop the prediction method of seismic response on vibration controlled steel frames with SF installed, and the simple design procedure is provided. The simplified restoring force characteristics which can chase the test results was applied on prediction method procedure. The prediction method was reformulated to adapt the bilinear model and strain hardening rule. The time history response analysis was performed to investigate the applicability and effectiveness. From the comparison and analysis of results and predictions, it is confirmed that the proposed prediction method shows enough accuracy.

Speaker
Biography:

Ahmed Khalafallah is an Assistant Professor at the Department of Civil Engieering, Kuwait University, Kuwait. Prior to joining Kuwait University, he was the Coordinator of the Construction Management program at Western Kentucky University. He holds a PhD degree in Civil Engineering with Computational Science and Engineering option from the University of Illinois. His research interests are in the areas of computational intelligence, risk management, sustainable construction optimization, quality control, and maintenance of infrastructure projects. He accumulated more than 16 years of experience at a number of leading institutes, including the University of Illinois, the University of Central Florida, and Cairo University.

Abstract:

The selection of a competent contractor for a construction project is a critical process to its success, and is usually based on competitive bidding or negotiated contracts. The evaluation of contractor safety performance is not a typical criterion in the selection process, although evidence suggests that such negligence can lead to increased accident rates, productivity losses, and significant cost overruns. This paper presents a framework for an automated decision support system that is designed to aid owners in evaluating contractor safety performance as one of the criteria for contractor selection. The framework is developed in three phases: (1) determining the indicators that depict contractor current and past safety performance and their metrics; (2) soliciting the input of experts regarding the indicators, their metrics, and relative significance; and (3) designing a relational database model to integrate the metrics of the identified indicators into a system that rates the safety performance of a contractor. The envisioned system should prove useful to owners and decision makers in selecting safety-conscious contractors, and can lead to significant safety improvements in an industry rife with hazards and accidents.

Speaker
Biography:

M.Manikandan is the Sr. Structural Engineer at Gulf Consult-Kuwait with responsibility for Designing and Construction Consultation of the tall buildings, Colleges, Shopping Complexes, Multi story Car Parks, Hospitals, Bridges and Deep Underground structures by considering the Structural requirements and adequate construct able systems to complete the projects within allocated budget and time schedule. Prior to joining Gulf Consult-Kuwait, M.Manikandan has worked as Structural Engineer at several companies, including RECAFCO-Kuwait, SAEED HADI ALDOOSARY EST-Saudi Arabia, Where he has completed many Precast Structures and treatment plant including the deep underground structures with heavy equipment. Notable he is in the construction industry since past 15 years and has completed many land mark projects in Kuwait as well in Saudi. M.Manikandan is pursuing PhD in Risk Management in International Construction Projects as an External Part time researcher with Vels University Chennai-India the expected completion on 2016 and He has been received Civil Engineering Degree from Kamraj University Madurai-India on April, 2000 following that he has received MBA in Project Management from Sikkim Manipal University-India in 2012.

Abstract:

Nowadays the client and architects are looking to have a more floor space utilization ration and unique shape of modern skyscrapers on one hand. The Engineers still tend to optimize a structure to a minimum of weight and optimum passing stress ratios on other hand, which are the hard criterion that available for Engineers during the design of the structures, eventually this criterion leads to structures that are expensive and have a poor quality and complex constructability during the executions phase. For this presentation the 60 story composite steel-concrete twisted peripheral building has been taken as an example to illustrate that the selection of adequate steel members and constructible connections, which leads to have a time reduction, high quality of the structure as a whole and within the budget. A three dimensional 60 stories structure has taken by considering the 4 cylindrical grids spacing 6m, tangential 30o with floor height at base, rest are 5m and 4m respectively. The arch Veirenderal system has been introduced to support the planted column on the grand entrance of the building. ETABS 2015 software has been used to obtain the design the systems with adequate steel sections for beams, columns and bracing members from the standard set of steel sections with grade ASTM A572 Gr50 for W sections, plates and ASTM A500 Gr-50 for tubes., further the concrete grade K800,K600 been considered for walls and slabs correspondingly ,furthermore the metal deck concrete 150mm thick with shear studs ASTM-A108 Gr 1020 dia. 19mm @300 on floor beams are considered as a floor slab, which also acting as a Diaphragm against lateral loads, Furthermore the vertical bracings are provided only in the peripheral alternate bays to limit the Drift against lateral loads such as wind 100mph and Seismic Zone-1. Limcon-V 3.63 has been used to design the connections as per AISC-360 by considering the materials ASTM-A572 Gr 50, ASTM A490 and E70XX for Plates, Bolts and Welds respectively.

Speaker
Biography:

Halil Sezen has received his B.S., M.S., and Ph.D. degrees from the Middle East Technical University, Ankara, Turkey; Cornell University, New York; and University of California, Berkeley; respectively. Professor Sezen has been a faculty member at The Ohio State University since 2002. He has more than 130 technical publications. He has been serving as an assocaite editor and editorial board member of several journals including the ASCE Journal of Structural Engineering, and Engineering Structures.

Abstract:

• Experimental data from field testing of steel frame buildings will be presented. One to four first-story columns were physically removed from existing buildigns using different methods. Strains and displacements were measured at several critical locations during the removal of columns.
• Computational models and analysis procedures will be presented to simulate collapse response of steel buildings. Static and dynamic analysis of two and three-dimensional structural models will be described. Redistribution of internal forces within the building after the loss of columns will be shown.
• Current progressive collapse design methodologies prescribed in the current code standards and guidelines will be presented.

Speaker
Biography:

Dr Xiao obtained his PhD from Nottingham University and has been a professor in Structural Engineering since 2010 in LSBU. Prior to this appointment he has researched and was a faculty member at the China Academy of Building Research, the Universities of Birmingham, Nottingham, Southampton and Swansea in UK spanning in the last 28 years. He had worked as a structural engineer at Gifford & Partners, Consulting Engineers. His research interests are on composite materials, steel and composite steel structures and the computational simulation by finite element analysis. He is the author of one patent, over 150 journal and international conference papers.

Abstract:

Steel structures are very critical when subjected to fire. This has been reflected in some recent engineering failures. It is even more critical for composite decking floor with openings which are quite common for commercial and hospital buildings. Numerical simulation of the thermal and structural performance of composite steel-decking flooring system will be discussed in this paper. In the research, a 3-D Finite Element Method (FEM) model has been developed to simulate the time dependent temperature distribution within the concrete slab and steel decking sections by using the non-linear finite element program, ANSYS package. The composite floor has been modelled with exposure to the ISO834 standard fire for over two hours using transient, non-linear thermal analysis. A comparison between the numerical results and experimental results obtained from the fire test conducted were carried out which has shown a very close agreement. The validation has allowed the FE model to be used for an in-depth assessment on the fire performance of composite steel decking floor under the elevated temperatures. The research has shown that fire performance of composite metal decking could be superior to the traditional steel with concrete slabs system.

Speaker
Biography:

Anica Meins-Becker is, besides her work as Academic councilor the Chair of Construction Management & Economics of the Bergische University of Wuppertal, since 2006 scientific project manager in numerous research projects. The areas of research include f.e. process-oriented planning, acquiring, controlling, controlling and documenting via AutoID technologies and the research cluster logistics. From 1999 to 2006 Anica Meins-Becker worked as a project manager in the area of logistics. She studied industrial engineering at the university of Biberach and civil engineering at the RWTH Aachen.

Abstract:

Since approximately 2005 the Chair of Construction Management & Economics of the Bergische University of Wuppertal deals with the application of modern technologies and methods, f. e. the RFID technology in connection with the method of the Building Information Modeling. In this connection a comprehensive draft with the aim of the digitization of the supply chain was developed within the scope of a huge number of research projects. On this occasion, the data delivered from the planning process are complemented with the real data grasped by the AutoID technology, as f. e. logistics and implementation or decrease data during the execution of construction, servicing and rebuilding data during the building use up to building back construction. These data are linked with the building data models by means of the method BIM. The results of the research and the added value for everybody in the construction sector are united within a demonstration module and a video. For two years this demonstration module was presented to the public in Germany to provide the suitable knowledge in the construction sector for all partners. These projects and the demonstration module should be discussed in the contribution paper which is meant as an introduction to an exemplary application which has found its relation to practice. In the practical example a company in Germany reorganised its whole contractor’s yard. The system is used according to demand as a rent station, material shop, spare parts store, key and document management or as a meeting demand order system.

Speaker
Biography:

Shek Poi-Ngian joins Universiti Teknologi Malaysia as lecturer in the Faculty of Civil Engineering since March 2010. He is currently a faculty senior lecturer as well as the research fellow in UTM Construction Research Centre (UTM-CRC). Shek received his Bachelor of Engineering (Civil) in year 2005 and Doctor of Philosophy (Structure) in year 2009 from Universiti Teknologi Malaysia respectively. He now is a graduate member in The Institution of Engineers, Malaysia (IEM), Board of Engineers Malaysia (BEM), and Malaysian Society for Engineering & Technology (mSet) as well. Shek’s primary research interests are in the field of steel connection, multi-storey steel frame, light steel framing system, steel and composite structure and load bearing interlocking block system.

Abstract:

The strength of light steel wall panel depends on stud slenderness and distance between stud. This paper presents details of an experimental study on the load-bearing capacity of light steel wall panels with different configuration of studs, namely single lipped C stud, double back-to-back lipped C stud, and double box lipped C stud. Nine full scale load tests are carried out on wall panels to investigate their performance and to establish a comprehensive database of information. Dry wall boards are used as the sheathing material and providing stability of frame. The loading is primarily distributed over the wall panel through spreader beam to avoid local buckling of wall stud under direct compressive loading of wall panel. Failure modes, compression resistance of wall and wall displacements are observed and then compared to theoretical predictions using current code of practice. Based on the the failure modes obtained from the tests, a design guideline is proposed to determine the load-bearing capacity of light steel wall panel.