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Simplified calculation method for punching bearing capacity of FPR reinforced concrete slab

A concrete slab and simplified calculation technology, which is applied in the field of simplified calculation of the punching shear bearing capacity of FRP reinforced concrete slabs, can solve problems such as inability to calculate results, inability to parallel transplant, non-convergence of nonlinear iteration, etc., to achieve high calculation efficiency and reduce calculation volume effect

Active Publication Date: 2021-04-20
杭州君为土木工程咨询有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned shortcoming of the prior art, the purpose of the present invention is to provide a simplified calculation method for the punching bearing capacity of FRP reinforced concrete slabs, to solve the problem that the punching bearing capacity calculation model of reinforced concrete slabs in the prior art cannot be transplanted in parallel to Calculation of the bearing capacity of FRP reinforced concrete slabs; the finite element model has a large amount of calculations, and the calculation results cannot be obtained quickly and conveniently. At the same time, the calculation process still has the problem of nonlinear iteration non-convergence

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  • Simplified calculation method for punching bearing capacity of FPR reinforced concrete slab
  • Simplified calculation method for punching bearing capacity of FPR reinforced concrete slab

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Embodiment Construction

[0058] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0059] It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of component...

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Abstract

The invention provides a simplified calculation method for the punching bearing capacity of an FPR reinforced concrete slab, and relates to the technical field of civil engineering, and the method comprises the steps: deducing an equivalent conversion formula of a square slab and a square column through employing a yield line theory and a virtual work principle; secondly, conducting deformation assumption on the radius-curvature relation of the FRP reinforced concrete slab through experimental research; then, analyzing the bending moment-curvature relation of the FRP reinforced concrete slab through a finite strip method; and finally, establishing a mechanical equilibrium equation of the FRP reinforced concrete slab, integrating each variable on the basis to obtain a load corner demand curve, and obtaining the punching bearing capacity and the critical corner of the FRP reinforced concrete slab in combination with a critical shear crack theoretical capacity curve. According to the method, the punching bearing capacity and the critical corner of the FRP reinforced concrete slab can be accurately simulated, the calculated amount is greatly reduced, and the calculation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a simplified calculation method for punching bearing capacity of FRP reinforced concrete slabs. Background technique [0002] Steel corrosion is one of the main factors affecting the durability of traditional reinforced concrete structures. In order to control the corrosion of steel bars, domestic and foreign academic and engineering circles have proposed a large number of solutions, such as using stainless steel, increasing the impermeability of concrete, increasing the thickness of the structural protective layer, using waterproof concrete, and applying anti-rust agents to the outside of steel bars, etc. However, these methods cannot completely solve the problem of steel corrosion. In the past 30 years, due to the advantages of good corrosion resistance, light weight and high strength, fiber reinforced composites (FRP) are expected to become a new type of material to...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F30/23G06F30/17G06F17/18G06F111/10G06F119/12
CPCY02T90/00
Inventor 钟宏林范兴朗谷圣杰
Owner 杭州君为土木工程咨询有限公司
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