نتایج جستجو برای: ورقه های frp
تعداد نتایج: 480945 فیلتر نتایج به سال:
The use of functional repair components stored inside hollow reinforcing fibres is being considered as a self-repair system for future composite structures. The incorporation of a self-healing capability within a variety of materials, including fibre reinforced polymers (FRPs), has been investigated by a number of workers previously. This paper considers the placement of self-healing plies with...
Atrioventricular (A-V) conduction and the functional refractory period (FRP) of the A-V system were studied in 13 dogs chronically infected by T. cruzi that had ECG disturbances indicative of myocarditis. Histopathologic findings at the A-V node and the bundle of His were correlated with the FRP and with conduction times of the A-V propagation system. Retarded conduction was related to inflamma...
Several building codes are available for the design of concrete structures reinforced with FRP; nevertheless knowledge on their structural behavior in case of fire is lack and no reliable design method is available. The experimental data available in the literature about the behavior of fiber-reinforced composite materials as well as of concrete slabs reinforced with FRP bars or grids at high t...
Tests of deep concrete beams with internal fiber-reinforced polymer (FRP) reinforcement have shown that such members can exhibit lower shear strength than members with conventional steel reinforcement. To model this effect, the current paper proposes an approach based on a two-parameter kinematic theory (2PKT) for conventional deep beams. The 2PKT is built on a kinematic model with two degrees ...
در ایران قاب های بتنی میان پر وجود دارد که نیاز به مقاوم سازی دارند. یکی از روش های موثر برای مقاوم سازی اینگونه ساختمان ها که در سال های اخیر مطالعات فراوانی در مورد آن انجام شده است، استفاده از کامپوزیت های مسلح فیبری (FRP) می باشد. در این تحقیق یک روش ساده به منظور تخمین سختی و ظرفیت بار نهایی قاب بتنی میانپر ارائه شده است. مصالح میانقاب به وسیله دو روش یک دستک و سه دستک، مدل سازی شده و با ...
Functional Reactive Programming (FRP) provides a conceptual framework for implementing reactive systems. It is a relatively recent model of programming, but has already been explored, implemented, and optimized in several useful ways. We survey the literature on FRP, its implementation, optimization, and uses, and present ideas for further research, along with some examples.
Passively damped bracing systems in steel frames, in which the conventional materials of the joint are replaced by high damping viscoelastic materials, have the potential of being effective practical means for passive vibration control of dynamically loaded civil engineering structures. However, this potential can be realized only if the associated structural penalties are reduced within accept...
The failure of a reinforced concrete member strengthened with FRP laminates may be caused by crushing of concrete, rupture of FRP laminates, or by the de-lamination of the FRP sheet. Therefore, the effectiveness and failure mode of fiber-reinforced polymer (FRP) sheets applied to beams and columns is related to the degree of adhesion of the epoxy to the concrete surface. When a peeling or de-la...
This paper presents an analytical approach to describe the behavior and mode of failure of infill masonry structures strengthened with fiber-reinforced polymer (FRP) materials. The approach is used to simulate the response of strengthened infill masonry walls under the effect of out-of-plane uniformly distributed pressure simulating wind pressure. The approach includes a finite element analysis...
اتصال تیر به ستون یکی از مهم ترین قسمت های یک سازه است که در صورت اجرای مناسب این قسمت سازه دارای رفتار مناسب به لحاظ شکل پذیری و ایجاد مکانیزم درست مفصل پلاستیک است. در هنگام زلزله به علت وجود نیروی محوری ، لنگر خمشی و نیروی برشی در گره اتصال تیر به ستون ، دچار تنش های زیادی می¬شود. در آیین نامه های جدید توجه خاصی به این قسمت از سازه شده است ولی درآیین نامه های قبلی به دلیل اینکه طراحی بر مبنا...
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