نتایج جستجو برای: میلگردهای gfrp

تعداد نتایج: 1672  

2012
P.Sampath Rao

Fibre composites are being used in various applications from aerospace, military, marine boats and submarine to renewable energy generation. Higher energy demands across the developed and growing world for the usage and replacement of conventional materials with polymer composite materials for engineering applications which is always questioned by the end user, unless the research oriented reli...

2003
GFRP BARS Piyong Yu Pedro Franco Silva Antonio Nanni

A mechanical device especially designed for the application of low-level posttensioning forces to glass fiber reinforced polymer (GFRP) bars was developed at the University of Missouri-Rolla. Some of the advantageous features of this device are that it is simple to assemble and the low-level post-tensioning forces can be applied manually and safely without the need for hydraulic jacks or heavy ...

2012
Masa Suresh Kumar Kesarabandi Raghavendra

This paper describes fractographic features observed in aerospace composites failed under tensile loads. Unidirectional Carbon Fibre Reinforced Plastic (UD CFRP) and Unidirectional Glass Fibre Reinforced Plastic (UD GFRP) composite specimens were fabricated and tested in tension. The morphology of fractured surfaces was studied at various locations to identify failure mechanism and characterist...

2009
M. Dawood E. Taylor S. Rizkalla

This paper presents the details of a research program that was conducted to evaluate the two-way bending behavior of 3-D glass fiber reinforced polymer (GFRP) sandwich panels. The panels consist of GFRP skins with a foam core and through-thickness fiber insertions. While the behavior of these panels under one-way bending is relatively well understood the behavior under two-way bending has not y...

2004
T. Hassan A. Abdelrahman G. Tadros S. Rizkalla

This paper describes the behaviour of two full-scale models of a portion of highway bridge slab reinforced with fibre reinforced polymer (FRP) reinforcement. The first slab was reinforced totally with carbon FRP (CFRP), and the second slab was reinforced with hybrid glass FRP (GFRP) and steel reinforcement. The models were tested under static loading up to failure using a concentrated load acti...

Journal: :Indian Scientific Journal Of Research In Engineering And Management 2022

Shear failure of B-C joints is recognized as the primary cause collapse various moment-resisting frame buildings during recent earthquakes. When joint subjected to huge forces severe ground shaking and its behaviour has a very much influencing on structure, sometimes it may Leeds entire structure. To study energy dissipation with different types combinations FRP sheets used retrofit BC in this ...

Journal: :The Egyptian International Journal of Engineering Sciences and Technology (Print) 2021

In this research, three models of beam-column joint have analyzed under reversed cyclic loading by finite element method using ANSYS software. The first model was designed with a steel-reinforced (longitudinal reinforcement and stirrups), the second performed (GFRP) -reinforced in longitudinal only third (CFRP) only. behaviour loading, their load-storey drift envelope relationship energy dissip...

2001
H. Y. Leung C. J. Burgoyne

This paper presents a method of analysis for the response of concrete beams reinforced with fibrereinforced-plastic (FRP) tension rods and aramid spirals. Three different kinds of longitudinal reinforcement are adopted; CFRP, AFRP and GFRP. Both under-reinforced and over-reinforced sections are described. It is found that the ratio of neutral axis depth and effective depth can be used as an ind...

سال­هاست که از میلگردهای فولادی برای تسلیح اعضای سازه‏های بتنی استفاده می‏شود. اگرچه فولاد، کاربری مناسبی از خود نشان داده، اما در شرایط محیطی مهاجم، زوال سازه‏هایی مانند پایه­ها یا عرشه‏های پل‏های بتن مسلح، به‏دلیل خوردگی فولاد، اتفاق می­افتد. لذا، بهره­گیری از آرماتورهای FRP راه مناسبی در حل این معضل شناخته شده زیرا این مصالح در محیط­های اسیدی، پایایی و دوام خوبی از خود نشان می­دهند. تأثیر پا...

ساختمان‌های بتن مسلح که قبل از دهه‌ی ۱۹۷۰ ساخته شده‌اند، فاقد جزئیات لرزه‌یی هستند و میلگردهای طولی آن‌ها به سه صورت: فاقد وصله، با وصله‌ی همپوشانی مستقیم و یا با وصله‌ی همپوشانی قلاب‌دار اجرا شده‌اند. در پژوهش حاضر، بهسازی لرزه‌یی ستون‌های بتن مسلح قدیمی با میلگردهای ساده به روش تسلیح‌گذاری در نزدیک سطح (N‌S‌M) به عنوان یک روش نوین و اجرایی به صورت آزمایشگاهی و نیز تأثیر وصله‌های مختلف میلگ...

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