نتایج جستجو برای: steel reinforcement

تعداد نتایج: 120252  

2004
Y C Wang P M H Wong V Kodur

This paper presents the results of an experimental study of the mechanical properties of FRP reinforcement bars, used as internal reinforcement in concrete structures, at elevated temperatures. Two types of FRP bars namely: carbon fibre reinforced polyester bars of 9.5mm diameter and glass fibre reinforced polyester bars of 9.5mm and 12.7 mm diameter were used in the study. For comparison, conv...

Journal: :مهندسی عمران فردوسی 0
سید روح ا.. موسوی محمدرضا اصفهانی مهراله رخشانی مهر

concrete beams reinforced with glass fiber reinforced polymer (gfrp) bars exhibit large deflections and crack widths as compared with steel reinforced concrete beams due to the low modulus of elasticity of gfrp bars. different studies show that aci 318 equation for the effective moment of inertia ie does not predict deflection well for frp reinforced concrete beams. the purpose of this paper is...

Fadavie-Ardestani, M. , Kesharvarz, A. , Ranjbarnodeh, E., Saeed Kiasat, M. ,

Nowdays, the prediction and prevention of fatigue failures is converted to one of the most concerns for industry owners. Since the processes of fatigue suddenly occur, it is most important and necessary to recognize the effective factors of fatigue life of structures. Mechanical and thermal multiple loading are the important factors of the fatigue failure. In order to appropriate fatigue design...

2010
Cristiana Gonilho-Pereira Emilija Zdraveva Raul Fangueiro Senentxu Lanceros-Mendez Said Jalali Mário de Araújo

This paper presents the development and properties assessment of braided reinforced composite rods (BCR) able to both reinforce and monitor the stress state of concrete infrastructures. The research study aims at understanding the tensile behaviour and self-monitoring ability of composite rods reinforced by a textile structure braided structure with core reinforcement for civil engineering appl...

2014
Henglin Lv Haijian Xie Shuchun Zhou

In the coal mining industrial environment, the materials of RC bunkers suffer from serious aging problems. The cracking and deterioration of concrete and the corrosion of steel reinforcement lead to a degeneration of structural performance and a decline of structural reliability. In this paper, based on on-site detection and coal mining ground industrial environment, the deterioration character...

2015
Yingjie Jia Peng Chang Jing Sun

A series of specified domains in Nu-Mu interaction diagram are proposed to determine optimal reinforcement schemes for rectangular RC column sections subjected to uniaxial eccentric load. These domains divide the area covered by interaction diagram into four regions of safety zone, compression-controlled zone, balanced failure zone and tensioncontrolled zone, which can help engineer to understa...

2014
Manu Prasad Mohit Sharma

Abstract— Ironically, despite the growing familiarity with composite materials and ever-increasing range of applications, use of natural fibers as reinforcement in polymeric composites for technical application has been a research subject of scientist. Pineapple leaf fibre (PALF) is one of them that have also good potential as reinforcement in polymer composite. In this present work, an experim...

2017
M. Abdulwahab R.M. Dodo I.Y. Suleiman A.I. Gebi I. Umar

The present study examined wear characteristics of A356/melon shell ash particulate composites. Dry-sliding the stainless steel ball against specimen disc revealed the abrasive wear behavior of the composites under loads of 2 and 5N. The composite showed lower wear rate of 2.182 × 10-4 mm3/Nm at 20 wt% reinforced material under load of 5N. Results showed that wear rate decreased significantly w...

2003
H. Trinh Cao

Life cycle costing is an important consideration for new concrete structures. It is also an integral part of asset management and in achieving sustainable construction. Cost effectiveness is the key driver. This paper presents an overall approach to formulate a strategy for protection of reinforced concrete structures against steel corrosion. The objectives of the protection are to ensure the d...

2012
Akash Garg Vineet R. Kamat

ABSTRACT: With the advent of precast construction technology, the construction industry has seen a rapid change in the way structures are built. Precast construction has brought down project costs and durations, increased the predictability and improved the quality of construction. It has also resulted in a shift in construction tasks from the construction site to the factory floor. Precast ele...

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