نتایج جستجو برای: آرایش نوارهای frp

تعداد نتایج: 7913  

2014
Floriana Petrone Giorgio Monti

This work deals with the development of a mechanics-based shear model for reinforced concrete (RC) elements strengthened in shear with fiber-reinforced polymer (FRP) and a design/assessment procedure capable of predicting the failure sequence of resisting elements: the yielding of existing transverse steel ties and the debonding of FRP sheets/strips, while checking the corresponding compressive...

2002
Khaled A. Soudki Ted Sherwood

Corrosion of steel reinforcement is one of the main durability problems facing reinforced concrete infrastructures worldwide. This paper will summarize the results of a multi-phase experimental program undertaken at the University of Waterloo to investigate the viability of using externally bonded fiber reinforced polymer (FRP) laminates to rehabilitate corrosion-damaged reinforced concrete bea...

2015
Hayder A. Rasheed Brandon R. Decker Asad Esmaeily Robert J. Peterman Hani G. Melhem Mahmoud Reda Taha

This research program is intended to verify the influence of using distributed external U-wrap CFRP anchorage to shift the failure mode from overall debonding to sectional flexural failure for concrete beams externally bonded with CFRP sheets. Premature cover delamination and FRP debonding are predominant failure modes in FRP flexural strengthening that may be delayed or prevented by using FRP ...

2008
Christopher T. King

Functional reactive programming (FRP) is an emerging paradigm which allows the management of input/output and state within the confines of a purely functional language. The functional nature of FRP promises to make formal verification of functional reactive systems more tractable than that of their imperative counterparts. I propose to substantiate this claim by formally modeling FRP systems an...

2007
Travis K. Hosteng

One of the goals that the Innovative Bridge Research and Construction (IRBC) program, sponsored by the Federal Highway Administration (FHWA), wishes to achieve through sponsored research projects is the concept of an economical, durable, short-span bridge that reduces construction time. Delaware County, Iowa took a step in that direction through the construction of a 64 ft. long bridge comprise...

2015
A. Lattanzio

4 Wooster, M.J., Roberts, G., Freeborn, P. H., Xu, W., Govaerts, Y., Beeby, R., 5 He, J. , A. Lattanzio, Fisher, D., and Mullen, R. 6 7 8 1 King’s College London, Environmental Monitoring and Modelling Research Group, 9 Department of Geography , Strand, London, WC2R 2LS, UK. 10 2 NERC National Centre for Earth Observation (NCEO), UK. 11 3 Geography and Environment, University of Southampton, Hi...

2015
Eun Suk Choi Jung Woo Lee Seong Jun Kim Jong Won Kwark

As a preliminary study for the erection of floating structures using high performance concrete, this paper examines the bond characteristics between concrete and the reinforcing bar. Since the floating structure is constructed in aquatic environment, corrosion of the reinforcing steel is likely to develop more prematurely than in onshore structure in case of concrete cracking. A solution to thi...

2000
L. De Lorenzis Ahmed Khalifa Laura De Lorenzis Antonio Nanni

ABSTRACT Fiber Reinforced Polymer (FRP) composite systems can be used for shear strengthening of reinforced concrete (RC) members. The present study investigated the shear performance and the modes of failure of simply supported RC T-beams externally strengthened in shear with FRP composites. Two different FRP-based strengthening systems were investigated, namely, externally bonded FRP sheets a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد 1389

از پلیمرهای مسلح شده با الیاف (fiber reinforced polymers, frp) به منظور تقویت و بهسازی سازه های موجود و همچنین ساخت سازه های جدید در مهندسی عمران استفاده می شود. در سال های اخیر، روش های مختلفی برای تقویت ستون های بتنی با استفاده از frp ابداع شده است که از این میان، دورپیچ ستون ها با نوار های frp به عنوان متداول ترین روش تقویت ستون های بتنی شناخته می شود. تعداد زیادی از ستون های بتن مسلح ساخت...

2005
S. Rizkalla M. Dawood

This paper reviews the reality and vision of the use of fiber reinforced polymer (FRP) composite materials in civil engineering and transportation infrastructure applications. Due to their superior characteristics these materials have become a commonly accepted construction material for both new construction and for rehabilitation and strengthening of existing bridges and structures. This paper...

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