International Conference on
Structural Design & Infrastructure Development
Scientific Program
Keynote Session:
Title: Monitoring of assets and assessment of cost
Biography:
Zul-Atfi Ismail is working as senior lecturer at University Malaysia Perlis (UniMAP) under the Civil Engineering Division, School of Environmental Engineering. He has been actively conducting research in the field of building maintenance in the national and international level. His experience in precast buildings industry and Building Information Modelling (BIM) modeler is essential to link academic research with industrial practicality. His expertise in building diagnosis and Computerised Maintenance Management System (CMMS) both linked to precast concrete buildings respectively. His research with industrial partners won several national awards in the areas of Construction Innovation and Technology.
Abstract:
Monitoring of assets and assessment of cost system is designed to improve the inventory management, works orders and defect assessment using pareto concept for handling the maintenance management processes. The system is used to monitor the asset condition during inspection. The system started from the technician to access and validates the works orders at website. The work orders report contents the information of time table for each defect to support the management of asset inventory. The statistic shows the asset operation schedule that undertaking by technician in the particular duration. The engineer tracks the asset condition and real time location of the defect occur with pareto concept to find out the maintenance priority or most ad hoc problems of the asset. Meanwhile, the database collection in the system, for instances, services level and reliability provides the awareness for the engineer to improve the decision for the ad hoc and preventive maintenance planning to the concerned asset. All the information is automatically sent to the system and also can be printed out through the system. The product can be divided into four main components, which are decision making support (Visual Basic.NET), pareto concept and central database (MS Access). Both of components play a different role in the system that wills potential to improve the management of asset maintenance effectively using the computerised technology.
Title: Innovative concept on structural engineering of mega tall buildings applied to one kilometre high concrete skyscraper
Biography:
Feroz Alam has invented a structural concept for tall/ mega tall buildings which can build up to one kilometer high where no additional structural supporting systems are required like belt truss, bracings etc. This structural concept also overcame previous disadvantage of shear lag effects of tube concept. A book (ISBN: 978-3-639-66041-8) published completely on his innovative concept from ‘’Scholars’ Press’’ – Omni Scriptum – Germany. He worked as a design engineer in Bangladesh, Saudi Arabia & Dubai where he involved for high-rise building designs (Steel & Concrete). Presently he is working in Qatar as a design advisor. He designed a 54 storied building in Doha, Qatar. He is also invented a concept for ‘’reduction (around 8 to 10%) of concrete from shear walls’’ of tall buildings without affecting the structural integrity of the buildings.
Abstract:
Structural system of tall buildings have undergone dramatic changes since the demise of the conventional rigid frames in the 1960s as the predominant type of structural system for steel or concrete tall buildings. There are numerous structural lateral systems used in high-rise building design such as shear frames, frames with shear core, framed tubes, tube in tube, super frames
which can construct for up to 140 stories. Later developed structural systems like outriggers and the buttress core has allowed for even higher buildings, can design for up to 160 stories. This study is intended to model an advanced structural system for tall buildings which can build taller than the tallest existing one. This innovative concept is applied to four models of heights 380m, 706m, 760m & one kilometer and aspect ratios (height/least width at base) are 7, 9, 7.6 & 9.5 respectively has been analyzed where several parallel shear walls have been arranged in both directions and connected with beams and slabs. Result analysis satisfied drift & acceleration limits according to international codes and standards which are main factors to be checked for tall buildings. Arrangements of shear walls are the main technic of this concept. Shear walls are continuous down to the base to which they are rigidly attached to form vertical cantilevers. Their high in plane stiffness and strength make them well suited for bracing buildings up to 264 stories at 1003.2m high (where drift at top 1964mm, allowable H/500 = 2006mm).Dynamic analysis of this I KM tower shows that the habitable floor is at height 722m (Record breaking habitable height)
besides, by introducing TMD can make the top habitable. This shear walls arrangement is applicable for tall buildings up to a height of one kilometer and can avoid additional supports to resist the lateral forces.
Oral Session 1:
- Steel Structure and Framework | Structural Engineering and Structural Designing | Traditional Architecture VS Modern Architecture
Chair
George Morcous
University of Nebraska-Lincoln, USA
Co-Chair
Ashok Ganapathy Iyer
Manipal Academy of Higher Education, UAE
Title: A numerical investigation on the mode of failure for a composite beam subjected to combined negative bending and axial loads
Biography:
Mahesh Bavan has completed his MSc in civil and structural engineering from National University of Malaysia and Master of Engineering (Geotechnics) from University Technology Malaysia. He is a senior engineer in Civil and Structural Engineering with fourteen years of vast professional experiences and currently he is enduring the research to read PhD. He has published more than 50 papers in reputed journals and international conferences.
Abstract:
In the past, a few investigations on modes of failures, have been put forward to determine the ultimate strength of composite beam. These determinations summarized elsewhere were on the mode of failure for reduced section of web of the composite beam subjected to monotonic loads. There has been a certain experimental works for a composite beam subjected to combined negative bending and axial load, and the mode of failure was reinforcement fractures. In this present study, a numerical model was developed for a composite beam subjected to combined negative bending and axial load, validated with existing experimental analysis, and applied openings with different sizes and shapes, which were a significant investigation on the mode of failure of reduced web section of composite beam subjected to combined negative bending and axial loads. In addition, the influences of degree of shear connection on failure mode with different shapes of opening such as circle and square were investigated. In summary, the reduced web section was found as substantial to influence a failure in the web of composite beam at any degree of shear interactions.
Title: Effect of corrosion on flexure, shear & torsional strength of reinforced concrete member
Biography:
Sudhir P. Patil is working as a Professor in Dr. Vishwanath Karad, MIT-World Peace University, Pune-Maharashtra-India. He is having teaching and industrial experience of 20 years. He has completed bachelor and master’s degrees in Civil and structural Engineering from Government College of Engineering ,Karad, PhD from VJTI- University of Mumbai. He is published more than 35 research papers in International and national journals and conferences. He is a member of various national technical organizations.
Abstract:
With the increase in demand for construction materials, man has improved a lot in the construction techniques of structures. Reinforced concrete beams are normally designed as under reinforced to provide ductile behavior such as the moment of resistance. In coastal environment reinforcement corrosion is an obvious cause of deterioration of concrete structure, which affects the durability and service of reinforced concrete structure. Torsional strength is a measure of the shear strength of concrete, in other words it is a measure of a resistance against failure in twisting. The main aim of experimental study is to analyze the flexural, shear & torsional strength of corroded beams using Ordinary Portland Cement (OPC). The experimental accelerated corrosion technique is adopted to corrode the beam. The varying percentages of corrosion are used such as 0%, 2.5%, 5% and 7.5%. The change in strength of Reinforced Concrete beams is studied for varying percentage of corrosion. Beam specimens are prepared using M20 grade concrete for OPC. Beam specimens are tested for flexure, shear, and torsional strength.
Bending moment decreases by 10.2%, 18.8%, 26.7% for 2.5%, 5%, 7.5% respectively as compared to 0% corrosion. Shear capacity decreases by 14.5%, 23.3%, 30.5% for 2.5%, 5%, 7.5% respectively compared to 0% corrosion. Maximum torque is decreases by 5.8%, 9.7%, 17.7% for 2.5%, 5%, 7.5% respectively as compared 0% corrosion.
