Design method and system of cast-in-place reinforced concrete pipe ditch

Abstract

The invention provides a design method and a system for a cast-in-place reinforced concrete pipe ditch, wherein size parameters of the reinforced concrete pipe ditch are acquired; a three-dimensional model of the reinforced concrete pipe ditch is established; according to finite element theories, the model is converted into a two-dimensional model of the reinforced concrete pipe ditch for finite element computation; any cross section in the two-dimensional model of the reinforced concrete pipe ditch is extracted; according to finite element computation results, positive stress and shear stress of each node on the extracted cross section are obtained; the bending moment, axial force and shear force values of an equivalent column cross section of the extracted cross section are computed; reinforcement computation is conducted to the extracted cross section; reinforcement computation results of the different cross sections are computed; and design results of the cast-in-place reinforced concrete pipe ditch are obtained. During the whole course, the three-dimensional model is converted into the two-dimensional model for processing based on the finite element theories; finite element computation is conducted to the two-dimensional model; the bending moment, axial force and shear values of the equivalent column cross section of the extracted cross section are obtained; and then the reinforcement computation is conducted to the extracted cross section. In this way, the cast-in-place reinforced concrete pipe ditch can be designed accurately.

Description

technical field [0001] The invention relates to the technical field of engineering design, in particular to a design method and system for cast-in-place reinforced concrete trenches. Background technique [0002] Reinforced concrete trenches have been widely used in various circulating water, drainage and water supply systems, bringing great convenience to people's production and life. [0003] Taking the application of reinforced concrete trenches to the circulating water system of nuclear power plants as an example, the reinforced concrete box culverts of the circulating water system of nuclear power plants have the following characteristics: 1) The external load is large, and the buried depth of more than ten meters to twenty meters is normal, and the internal water pressure The largest has reached 650 kPa, and the sudden increase in the temperature of the drainage when the unit is shedding load still needs to be considered; 2) The flow rate is large, so the diameter of t...

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Problems solved by technology

[0005] Based on this, it is necessary to solve the problem that the design results of concrete pipe trenches deviate greatly from the real situation in the design scheme of general cast-in

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