نتایج جستجو برای: آرماتور frp

تعداد نتایج: 3450  

2016
Zeng-Zhu Zhu Ying-Wu Zhou Li-Li Sui Feng Xing

During the past decades, FRP strengthened RC structures have attracted worldwide interest in both application and research. Nowadays, as more and more infrastructures are being suffered from severe corrosions due to harsh and extreme environments, the durability of FRP strengthened RC structures has generally emerged as the most important issue in research. Thus, the paper presents the latest p...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده فنی و مهندسی 1391

ایمن سازی اعضای سازه ای در مقابل اثرات ناشی از انفجار از اهمیت قابل توجهی برخوردار است.نحوه ی اعمال این بار هولناک بر سازه مهم ترین بخش روند طراحی سازه در مقابل انفجار است.ابتدا مقدمه ای در مورد تاثیرات خاص ایجاد شده توسط انفجار و نیازهای موجود برای رفع این مشکل پرداخته شده است. سپس نگاهی به تاریخچه وماهیت انفجار و چگونگی اعمال آن برروی سازه خواهیم داشت. درادامه به تاثیر آرماتورهای طولی و عرضی ...

2002
Jung-Yoon Lee Young-Jun Oh Ji-Sun Park Mohamad Y. Mansour

Concrete columns confined with high-strength fiber reinforced polymer (FRP) composites can enhance the strength as well as the ductility of such structures. In recent years, the use of FRP composites to repair and strengthen existing reinforced concrete (RC) structures has been widely used. When the columns of existing RC structures are wrapped with FRP composites, the core concrete of such col...

2000

Thin laminates made of high-strength pultruded fiber reinforced polymers (FRP) are increasingly being used to reinforce glue-laminated timber (glulam) beams, creating a new composite glulam (FRP glulam) significantly stronger in bending than a conventional (unreinforced) glulam of equal size. Large timber members have long been recognized for maintaining structural integrity in fires and this p...

در این مقاله تاثیر استفاده از میلگردهای کامپوزیت FRP بر ترک خوردگی تیر بتن آرمه مورد مطالعه قرار گرفته است. به دلیل خوردگی میلگردهای فولادی در شرایط خاص، استفاده از میلگردهای کامپوزیت FRP در سال‌های اخیر بسیار مورد توجه قرار گرفته است. به منظور بررسی رفتار ترک خوردگی، پانزده تیر بتن آرمه با میلگردهای فولادی و میلگردهای کامپوزیت شیشه (GFRP) با درصدهای مختلف آرماتور در نرم افزار ABAQUS مورد تحلیل...

2013
Raj Shah Stephen Walsh Andrew Ross

The first Fibre Reinforced Polymer (FRP) implemented to a UK Railway Bridge was in 2001, since then a number of key railway bridge projects involving FRP have seen completion; six being fully FRP bridges. Although the potential use of FRP on the infrastructure was found in 1998 due to high strength to weight ratio, stiffness and good chemical resistance, the implementation of FRP to small scale...

2013
Fusheng Jiang Weiping Li Yanfen Huang Yitao Chen Bo Jin Nipi Chen Zhishan Ding Xinghong Ding

This study was carried out to evaluate the utilization probability of the fibrous root part (FRP) of Bletilla striata, which was usually discarded and harvesting pseudobulb part (PSP). The chemical composition, total phenolic content, DPPH radical scavenging activity, Ferric-reducing antioxidant power and tyrosinase inhibition activity were compared between FRP and PSP. Antioxidant and pro-oxid...

2010
Daniel C. Jansen

Fiber-reinforced polymer (FRP) reinforcing bars have aTtracted considerable 0llellli0l1 for applications where corrosion of steel reinforcement is problemaric. Due 10 rhe generally low elastic modulus and poor bond clwracreristics of FRP as coil/pared 10 steel reinforcing bars, the use of FRP results in IGI:i?er crack widlhs under senJice loads. Fiber-reinforced concrete (FRe) is proposed for u...

Journal: :International immunology 1998
M Tanaka S Ozaki F Osakada K Mori M Okubo K Nakao

In an attempt to identify autoantigens of synovium in rheumatoid arthritis (RA), we constructed lambda phage expression cDNA libraries from synovium and screened them by IgG purified from synovial fluids, both of which were derived from RA patients. As a result of this unique combination of the libraries and probes, we cloned follistatin-related protein (FRP) as a novel autoantigen in systemic ...

2002
Halvard Nystrom Antonio Nanni Danielle K. Stone

The overall objective of this research project was to conduct an extensive study of the behavior and use of glass fiber-reinforced polymer (GFRP) and carbon FRP (CFRP) materials for bridge construction. In particular, GFRP honeycomb sandwich panels were used as bridge panels and steel-supported bridge deck panels and CFRP and GFRP bars were used as internal reinforcement for precast concrete br...

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