نتایج جستجو برای: ورقهای تقویتی frp یا فولادی

تعداد نتایج: 147300  

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...

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...

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...

ژورنال: تحقیقات بتن 2017

در سال های اخیرکامپوزیت های FRP به علت داشتن نسبت های بالای مقاومت به وزن و سختی به وزن، پتانسیل بالای دوام و وزن پایین بطور گسترده ای استفاده شده اند؛ همچنین استفاده از میلگردهای FRP در جایی که احتمال خوردگی آرماتورهای فولادی وجود دارد، جایگزین مناسب برای تقویت دال های بتنی می باشد. تا کنون روابط تجربی زیادی برای تخمین ظرفیت برشی دال های بتنی ارائه شده است اما در مسائل متنوعی، روش های داده کاو...

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 ...

ژورنال: :مهندسی سازه 2007
طالب مرادی شقاقی

ستونهای فولادی پر شده با بتن cfst نوعی از ستونهای مرکب می باشند، که بدلیل مزایای فراوانی که نسبت به ستونهای بتن آرمه و فولادی دارند استفاده از آنها مخصوصاً در ساختمانهای بلند در سالهای اخیر رواج زیادی پیدا کرده است. از جمله این مزایا می توان به سادگی نصب و اجرا، مسائل اقتصادی، حذف هزینه های قالب بندی، عملکرد خوب در مقابل نیروهای لرزه ای، مقاومت بیشتر با حجم کمتر و شکل پذیری بالا اشاره نمود. در ا...

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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