نتایج جستجو برای: ورقه های frp
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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...
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...
امروزه استفاده از پلیمرهای مسلح شده با الیاف (frp) یکی از پرکاربردترین روش های مقاوم سازی اعضای بتن مسلح می باشد. کاربری آسان مواد frp به علت داشتن وزن کم، مقاومت کششی بالا و خاصیت ضدخوردگی باعث شده است که این مواد جایگزین مناسبی برای مصالح سنتی و شیوه های متعارف موجود باشند. طی سال های اخیر مقاوم سازی تیرهای بتن مسلح با استفاده از چسباندن ورقه های frp به سطح خارجی آن ها، از رشد قابل توجهی برخو...
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...
بسیاری از سازه های بتن آرمه موجود در مناطق زلزله خیز در برابر نیرو های ایجاد شده توسط زلزله های شدید و متوسط دارای رفتار مناسبی نمی باشند. بطور کلی در سازه های بتن مسلح طراحی شده بر اساس آیین نامه های قدیمی، اتصالات تیر به ستون به عنوان اجزاء بحرانی به شمار می روند. در طراحی آیین نامه های جدید به این نکته اشاره گردیده است که اصل تیر ضعیف-ستون قوی بایستی مورد توجه قرار گیرد. در بسیاری از سازه ها...
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...
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 ...
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...
Functional Reactive Programming (FRP) is a declarative programming model for constructing interactive applications based on a continuous model of time. FRP programs are described in terms of behaviors (continuous, timevarying, reactive values), and events (conditions that occur at discrete points in time). This paper presents Frappé, an implementation of FRP in the Java progamming language. The...
Over the last two decades fiber-reinforced polymer (FRP) rods have emerged as one of the most promising and affordable solutions to the corrosion problems of steel reinforcement in structural concrete. The application of FRP rods in new or damaged structures requires the development of design equations that must take into account the mechanical properties and the durability properties of FRP pr...
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