نتایج جستجو برای: ورقهای cfrp
تعداد نتایج: 3892 فیلتر نتایج به سال:
A new generation of concrete highway bridges has recently been built in Canada using new design concepts and advanced materials for reinforcing and prestressing concrete . This paper describes briefly the design and construction of three bridges. The first smart concrete highway bridge (Centre Street, Beddington Bridge, Calgary, Alberta) is prestressed by carbon fiber reinforced plastic (CFRP) ...
Machined surface quality determines the reliability, wear resistance and service life of carbon fiber reinforced plastic (CFRP) workpieces. In this work, the formation mechanism of the surface topography and the machining defects of CFRPs are proposed, and the influence of milling parameters and fiber cutting angles on the surface quality of CFRPs is obtained, which can provide a reference for ...
Corrugated steel web with inherent high out-of-plane stiffness has a promising application in configuring large span highway bridge girders. Due to the irregularity of the configuration details, the local stress concentration poses a major fatigue problem for the welded flange plates of high strength low alloy structural steels. In this work, the methods of applying CFRP laminate and shot peeni...
از انواع دیوار برشی می‌توان به دیوار برشی CSRCW اشاره کرد که متشکل از دو ستون فولادی دارای گل میخ و مدفون شده در بتن مسلح می‌باشد. این پوشش بتنی می‌تواند در تحمل بار و همچنین افزایش سختی سیستم مشارکت داشته باشد. برای اتصال بتن به ستون‌های فولادی در این دیوار از گل میخ‌ها (برشگیرها) استفاده می‌شود که نقش بسیار مهمی را در رفتار این سیستم بر عهده دارند. در این پژوهش باتوجه به کم بودن ضخامت دیوار ب...
از نقاط آسیب پذیر تیرهای بتن مسلح در قاب‌های خمشی مقاوم در برابر زلزله، ناحیه بر ستونو نزدیک اتصال می‌باشد. در بحث مقاوم‌سازی تیرها، تقویت این ناحیه به علت بالا بودن نیروهای برشی از اهمیت زیادی برخوردار می‌باشد. از روشهای اصلی مقاوم‌سازی دو روش مقاوم‌سازی با پوشش‌های فولادی و پوشش‌های پلیمری CFRP می‌باشند که هرکدام مزایا و معایب ویژه‌ی خود را دارد. می‌توان با ترکیب این دو روش از مزایای هر کدام ...
deep beams are type of beams which their behavior is different from conventional beams because of their particular type of geometry. in this paper, the retrofitting of these beams is considered and 10 deep beams are tested experimentally and discussed about retrofitting methods. experimental studies indicate that the use of cfrp bands in the direction perpendicular to diagonal cracks in compari...
We have been successful in developing light and durable mirrors made of CFRP (Carbon Fiber Reinforced Plastic) laminates for the reflector of the new CANGAROO-II 7 m telescope. The reflector has a parabolic shape (F/1.1) with a 30 m effective area which consists of 60 small spherical mirrors of CFRP laminates. The orientation of each mirror can be remotely adjusted by stepping motors. After the...
We have been successful in developing light and durable mirrors made of CFRP (Carbon Fiber Reinforced Plastic) laminates for the re ector of the new CANGAROO-II 7 m telescope. The re ector has a parabolic shape (F/1.1) with a 30 m e ective area which consists of 60 small spherical mirrors of CFRP laminates. The orientation of each mirror can be remotely adjusted by stepping motors. After the rs...
X-ray inspection of Carbon Fiber Reinforced Polymer (CFRP) is time consuming. With classical reconstruction methods, many projections of the object from different orientations are required to obtain high quality reconstructions of the interior fiber composition. In this work, we propose to reconstruct the interior of the CFRP samples with a Neural Network Filtered Backprojection (NN-FBP) method...
Release agents are applied as a liquid that forms a thin film coating to aid removal of carbon-fiber-reinforced polymer (CFRP) parts from a mold or peel ply. This process, however, leads to inevitable contact transfer, causing release agent to remain on the part or repair. Before painting or bonding of the CFRP component to other structures, proper post-treatment to remove vaporizable component...
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