11 Articles Published

1. IMPLEMENTATION OF OCCUPATIONAL SAFETY AND HEALTH MANAGEMENT SYSTEM (OSHMS) ON BRIDGE CONSTRUCTION THE PROJECT OF MIDDLE SPAN OF “MERAH PUTIH” BRIDGE IN AMBON

Authors: D.D.M. HUWAE , J. E. LATUPEIRISSA , J.TANIJAYA , L. R. PARERA

Abstract: This paper describes about the implementation of the Occupational Safety and Health Management System (OSHMS) and the correlation factors between health and safety (HS) with the OSHMS application on the development of “Merah Putih” Bridge in Ambon. The issues about accident on the workplace indicate that OSHMS have not been successfully implemented. It can be influenced by many factors. Hence, it is significantly important to analyze the factors that can delay and support the implementation of HS in construction site. A series of questionnaires were distributed to the worker on site. The data gained from questionnaires were analyzed with using SPSS 17. Regression and correlation analysis (R) and the coefficient of determination (R Square), and a significance test (t-test) were conducted in SPSS 17. The analysis results indicate that the correlation factors were 99.70% and 98.30% for X-corp and Ycorp, respectively. Hence, the overall effect of independent variables and the application o

Keywords: Occupational Safety and Health Management System OSHMS, Health and Safety HS, occupational accident

Pages: 1 - 6 | DOI: 10.15224/978-1-63248-070-5-40

2. THE EFFECT OF SODIUM CHLORIDE AND MAGNESIUM CHLORIDE SALTS ON PERLITE AGGREGATE LIGHTWEIGHT CONCRETE

Authors: MAHYAR SHOAEI , RUSTEM GUL , TURKAY KOTAN

Abstract: In this study, the effect of NaCl and MgCl2 salts in lightweight concrete (LWC) with raw perlite aggregate was investigated. For this purpose, 360 concrete samples with Ø100/200 mm cylindrical shape were produced. In concrete mixture, the Micro Silica Fume (SF) and Fly Ash (FA) were replaced with cement at the rate of 10% and 20% of its weight, respectively. The produced concrete samples before were waited in standard water curing for 28 days and then they were subjected to Sodium Chloride and Magnesium Chloride solutions at the rate of 3.5% and 5.0% further in mixtures of these at the rate of 1.75%+1.75% for 28, 90, 56 days. Besides, the standard water curing was applied to samples. The compressive strength, unit weight and water absorption standard tests were made on three samples for each condition and average results obtained from tests were given in this paper. The results showed that; the effect of MgCl2 solutions on samples with additives of 10% SF and 20% FA was fewer compared

Keywords: lightweight concrete, perlite, micro silica fume, fly ash, sodium chloride, magnesium chloride

Pages: 7 - 11 | DOI: 10.15224/978-1-63248-070-5-41

3. INVESTIGATION OF MANHOLE EFFECTS ON THE SEISMIC RESPONSE OF SELF-SUPPORTED STEEL CHIMNEYS

Authors: A.MEHRAZAD TAHAMOULIRODSARI , B.EHSAN KHOSRAVI , C. MOHAMAD AMIN SHARAFIANI

Abstract: Industrial steel chimneys are one of the most important shell shaped structures which are located at the power plants and petrochemical factories. The collapses of these structures during destructive earthquakes result in delay of industrial productions. Existence of manhole at the bottom of chimneys provide inspection purposes and access to inner part of the structure. It is so clear that existence of manhole decline strength and stiffness of the structure. Therefore, presence of series of stiffeners compensate weakness in this structures. In the first part of this paper sensitivity analyses were done on the structure for calculating the most economical design of steel chimney during impressive earthquakes. At the second part pushover analyses were done on the structure for chimney with manhole, without manhole and with consideration of stiffeners. At the third part nonlinear dynamic analyses applied on the structure for achieving exact response of structure. Finally the capacity curv

Keywords: steel chimney, manhole, stiffener, IDA and pushover analysis

Pages: 12 - 17 | DOI: 10.15224/978-1-63248-070-5-42

4. AN ELECTROELASTIC PROBLEM OF GREEN MATERIALS SUBJECTED TO SURFACE FRICTION

Authors: KHALED RAMADAN , MOAYYAD AL-NASRA , MOHAMAD DAOUD

Abstract: Aiming at the development of nondestructive evaluation techniques for green materials, we investitgate electroelastic field in a body with D∞ symmetry subjected to a partially distributed friction across its ∞-fold rotation axis on its surface. By using a potential function method derived by us, the electroelastic field inside the body is formulated. Furthermore, numerical calculation is performed to investigate the field qualitatively and quantitatively.

Keywords: green material, electroelasticity, D∞ symmetry, theoretical analysis

Pages: 18 - 21 | DOI: 10.15224/978-1-63248-070-5-43

5. INVESTIGATING ALTERNATIVES IN SHEAR REINFORCEMENTS IN THE REINFORCED CONCRETE BEAMS

Authors: MOAYYAD AL-NASRA

Abstract: There are several alternatives to the traditional stirrups in reinforced concrete beams. This study focuses on providing other options other than the stirrups. Due to the unsafe mode of shear failure in reinforced concrete beams, designers may find themselves reluctant to use higher factor of safety. Shear failure in reinforced concrete beams is one of the most undesirable modes of failure due to its rapid progression. This sudden type of failure made it necessary to explore more effective ways to design these beams for shear. The cost and safety of shear reinforcement in reinforced concrete beams led to the study of other alternatives. In this study five different shear reinforcements are used to study the effect of each type of shear reinforcement on the shear performance of reinforced concrete beams. Five types of beams were prepared, each with different type of shear reinforcements. The five different types of shear reinforcement are; standard stirrups and the sample is considered

Keywords: Swimmer bar, Deflection, Shear, Crack, Stirrup

Pages: 27 - 31 | DOI: 10.15224/978-1-63248-070-5-45

6. SEISMIC ANALYSIS OF NONSTRUCTURAL ELEMENTS IN BUILDINGS CONSIDERING DIFFERENT CODES

Authors: MOHAMAD DAOUD , EMAN MAHMOUD , NASSER ZAKI AHMED

Abstract: Nonstructural elements of a building are usually not contributing elements in the resisting system. Accordingly, they are not given the proper attention in the structural design process. However, non-structural elements attract seismic forces and thus are subjected to damage and failure during seismic events resulting in psychological and economic implications in some critical and lifelines structures. This paper reviews and evaluates the seismic design force recommended by different international design codes. It aims at evaluating seismic safety of non-structural elements and its governing factors. Response spectrum and time history are used to simulate seismic ground motion excitation. Building is modeled as a 3D finite element model using ETABS program. The building response behavior is considered linear elastic. A parametric study is carried out considering multi-story buildings with different heights. The considered parameters include: building height, ground motion excitation va

Keywords: Nonstructural elements, dynamic analysis, code provisions, seismic force.

Pages: 32 - 36 | DOI: 10.15224/978-1-63248-070-5-46

7. EFFECT OF SHEAR CONNECTORS AND INTERFACE ROUGHNESS ON THE BEHAVIOR OF ONE WAY COMPOSITE PRE-SLABS

Authors: M.FAWZY , M.RABEA, W.ZAKI

Abstract: The behavior of one way composite pre-slabs were studied. An experimental program was carried out to test nine simply supported slabs, one of them was reference monolithic slab and the remaining eight slabs were composite pre-slabs composed of two concrete layers. The composite preslabs were divided into three groups to investigate the effect of shear connectors length and ratio, and interface roughness on the behavior of pre-slabs. Also a theoretical analysis was carried out to confirm the experimental program. It was concluded from these experiments that increasing of shear connectors length or ratio led to increase horizontal shear capacity. Also, the interface roughness had a pronounced effect on the horizontal shear capacity of the composite pre-slab

Keywords: Concrete, Shear Connectors, Pre-slabs, shear transfer, Interface roughness

Pages: 37 - 41 | DOI: 10.15224/978-1-63248-070-5-47

8. FATIGUE ANALYSIS OF POLYETHYLENE FUEL TANKS USED IN BUSES

Authors: ERDEM AKAY , GOKAY SIMITCIOGLU , H. BURAK USTAOGLU , HALIT S. TURKMEN , SEDAT SUSLER , SENA AYHUN , SERTER ATAMER , VEDAT Z. DOGAN , Y. EMRE ERGINSOY

Abstract: n this paper, the fatigue analysis part of a project which aims to develop a computer aided methodology for developing/designing of the polyethylene fuel tanks is presented. The fatigue performance of the polyethylene material based on the stress-life (S-N) approach is obtained by coupon tests. Dynamic “g forces”, which act on the fuel tanks as base excitations, are obtained from the specific bad road runway experiments by the Mercedes-Benz Turk (MBT) R&D Center. In the finite element simulation, dynamic stresses are obtained for different fullness ratios of the tank by using PERMAS V15. Fluid-structure interaction problem is also considered, fluid (fuel) is modeled with acoustic elements, and structure (tank) is modeled with shell elements. Fatigue life prediction of the fuel tank is conducted by using the FEMFAT (Finite Element Fatigue Analysis) program. After evaluating results, some geometry optimization is performed. Finally, all fatigue analysis results are compared with the hydr

Keywords: polyethylene, finite element method, fatigue

Pages: 42 - 46 | DOI: 10.15224/978-1-63248-070-5-48

9. DETERMINATION OF RESPONSE MODIFICATION COEFFICIENT FOR STEEL CHIMNEYS BY IDA AND PUSHOVER ANALYSIS

Authors: A.MEHRAZAD TAHAMOULIRODSARI , B.MOHAMAD AMIN SHARAFIANI , C.EHSAN KHOSRAVI

Abstract: Industrial steel chimneys are in the group of the tallest shell shaped structures, and these structures are one of the most important parts of power plants. The main rule of chimneys is transferring Emissions resulting from fuels to the higher level of ground. In this article the capacity curve of the structure calculated by Incremental Dynamic Analysis (IDA) and nonlinear static analysis (pushover). Therefore, ductility, over strength, Deflection amplification factor and response modification coefficient were computed by considering capacity curve. For modeling of the chimney, finite element software ABAQUS is used. The results show good agreement between response modification coefficient obtained from IDA and poshover analysis with the coefficient that suggested by AISC code. Results show that response modification coefficient suggested by AISC code is conservative. At the second part two opening were added at the bottom of the chimney, and time history analyses for ten different ear

Keywords: steel chimney, response modification coefficient, IDA and pushover analysis, opening

Pages: 47 - 52 | DOI: 10.15224/978-1-63248-070-5-49

10. INTEGRATING SUSTAINABLE CONSTRUCTION PRINCIPLES INTO CURRICULUM DESIGN FOR BUILT ENVIRONMENT PROFESSIONAL PROGRAMS IN NIGERIA

Authors: ABDULLAHI AHMED B , BISHIR ISAH M. , MUSTAPHA YAKUBU

Abstract: This paper presents the findings of a research which sought to investigate the readiness to Integrate Sustainable construction Principles into Curriculum Design for Built Environment Professional programs in the Nigerian Universities. Developing the knowledge and understanding that construction professionals acquire of sustainable construction practice leads to considerable improvement in the environmental performance of the construction sector. Integrating sustainable environmental issues within the built environment education curricula provide the basis of this research. An integration of sustainable development principles into the universities built environment professional programmes are carried out with a view of finding solutions to the key issues identified. The perspectives of academia have been assessed and findings tested for validity through the analysis of primary quantitative data that has been collected. The secondary data generated has shown that there are significant di

Keywords: Built Environment, Curriculum Development, Sustainable Construction, Sustainable development

Pages: 53 - 57 | DOI: 10.15224/978-1-63248-070-5-62

11. THE ROLE OF DOLOMITE POWDER ON THE PROPERTIES OF SELF COMPACTING CONCRETE

Authors: AYUB ELAHI , M.A.BABRUS , S AHMAD

Abstract: The Dolomite Powder (DP), as a filler material has been used in the Self Compacting Concrete (SCC), which regulates the segregation of fresh concrete as well as rendering favorable impacts on the deformability of the SCC. The current study addresses the investigation of effects of locally available DP along with the proportions of locally available Fly Ash (FA), on the properties of SCC. The other aspect of this research work deals with the search of economical filler material to be used in concrete without compromising the strength of concrete and within the prescribed guidelines of European Federation of National Associations Representing producers and applicators of specialist building products for concrete (EFNARC).The specimens of concrete were cast using variousmix ratios of DP and FA. On the basis of the results obtained, it was indicated that with the use of DP along with the proportions of FA, the SCC fulfilled the criteria of EFNARC both in the fresh state and the hardened st

Keywords: Dolomite Powder, Fly ash, Self-Compacting Concrete, Segregation

Pages: 58 - 64 | DOI: 10.15224/978-1-63248-070-5-66