نتایج جستجو برای: آرماتور frp

تعداد نتایج: 3450  

2014
C. C. Spyrakos

The performance of the interface between fiber reinforced polymer (FRP) composites and concrete is one of the key factors affecting the behavior of strengthened reinforced concrete (RC) structures. Existing laboratory research has shown that RC beams strengthened with FRP sheets usually fail because of either debonding of the impregnated fabric from the concrete substrate or fracture of the FRP...

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده فنی 1389

با توجه به آن که در دستورالعمل fema-356 مشخصات مفاصل پلاستیک، تنها برای ستون های معمولی (تقویت نشده) تعیین شده در این تحقیق سعی بر آن است تا برای ستون های تقویت شده با frp نیز مشخصات مفاصل پلاستیک تعیین شوند. بنابراین هدف این تحقیق بررسی تأثیر بهسازی ستون های بتن آرمه مستطیلی با الیاف پلیمری و منظور از آن دستیابی به مشخصات مفاصل پلاستیک این ستون ها می باشد تا با داشتن این مشخصات بتوان به جای اس...

2015
Evangelos Mavroudakis Danilo Cuccato Davide Moscatelli

Throughout the last 25 years, computational chemistry based on quantum mechanics has been applied to the investigation of reaction kinetics in free radical polymerization (FRP) with growing interest. Nowadays, quantum chemistry (QC) can be considered a powerful and cost-effective tool for the kinetic characterization of many individual reactions in FRP, especially those that cannot yet be fully...

Journal: :FEMS microbiology letters 1996
Y Shibata H K Kuramitsu

Four putative open reading frames (ORFs) were previously identified in the regions flanking the Streptococcus mutans GS-5 fructosyltransferase (FTF) gene. One of these, ORF 3, appeared to code for a low-molecular-mass protein containing amino acid sequences sharing homology with several Gram-positive bacterial DNA-binding proteins and it was suggested that the ORF 3 gene product might be an FTF...

2000
Laura De Lorenzis Antonio Nanni

In unreinforced masonry walls, failure due to out -of-plane bending causes the majority of the material damages and loss of human life. Therefore, the development of effective strengthening techniques needs to be addressed. Near-surface mounted (NSM) FRP rods are now emerging as a promising technique for increasing flexural and shear strength of structural members. The aim of this research prog...

2012
O. Büyüköztürk

Abstract Fiber-reinforced polymer (FRP) strengthening and retro fi tting of concrete elements, such as beams, columns, slabs, and bridge decks, have become increasingly popular. Nonetheless, rapid and reliable nondestructive testing techniques (NDT) that are capable of remotely assessing in-situ integrity of retro fi tted systems are needed. Development of a robust NDT method that provides an a...

Journal: :Higher-Order and Symbolic Computation 2010
Neil Sculthorpe Henrik Nilsson

Functional Reactive Programming (FRP) is an approach to reactive programming where systems are structured as networks of functions operating on signals (time-varying values). FRP is based on the synchronous data-flow paradigm and supports both (an approximation to) continuous-time and discrete-time signals (hybrid systems). What sets FRP apart from most other languages for similar applications ...

2001

The use of fiber reinforced polymers (FRP) for reinforcement of aging and deteriorating concrete members has emerged as a viable and cost effective alternative to traditional repair and strengthening techniques to upgrade deficient structures to meet today’s design standards (Crasto et al., 1996; Myers et al., 2000). The load carrying ability of structures such as beams and columns can be enhan...

2014
David Weaver Robert Summers

Hillslope runoff and leaching studies, catchment-scale water quality measurements and P retention and release characteristics of stream bank and catchment soils were used to better understand reasons behind the reported ineffectiveness of riparian buffers for phosphorus (P) management in catchments with sandy soils from south-west Western Australia (WA). Catchment-scale water quality measuremen...

ژورنال: :مهندسی عمران شریف 0
محمدرضا اصفهانی دانشکده مهندسی عمران، دانشگاه فردوسی مشهد امین حاکمی دانشکده مهندسی عمران، دانشگاه فردوسی مشهد

در این پژوهش، پیوستگی بین آرماتور و بتن ساخته شده از سنگ دانه ی بازیافتی بررسی می شود. بدین منظور هشت نوع بتن شامل دو گروه بتن خودمتراکم و معمولی، و در هر گروه چهار مخلوط بتن با درصد سنگ دانه های بازیافتی مختلف )۰، ۳۰، ۵۰ و ۱۰۰ درصد( ساخته شد. نمونه های آزمایشگاهی بلوک های بتنی به ابعاد $45t i m e s25t i m e s8$ سانتی متر بودند که در هریک ۴ عدد آرماتور )۲ آرماتور در پایین و ۲ آرماتور در بالا( ت...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید