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A Calculation Method for the Internal Force of Shallow-buried Channel Slab-rib Beam Under the Action of Vehicle Wheel Pressure

A technology of automobile wheels and grooved plates, which is applied in the field of municipal engineering, can solve the problems of large calculation results of rib beams, waste of materials, and large calculation results of rib beam shear force, etc., and achieve the reduction of calculation internal force, obvious economy and saving The effect of building materials

Inactive Publication Date: 2020-07-24
BEIJING JIAOTONG UNIV +1
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Problems solved by technology

In the calculation of the internal force of the ribbed girder in the past, the wheel pressure of the car was borne by a single rib beam, resulting in the calculation results of the bending moment and shear force of the rib beam being too large; at the same time, the wheel pressure of the car was regarded as a concentrated load, so that The calculation result of rib beam shear force is further larger
This will inevitably lead to waste of materials

Method used

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  • A Calculation Method for the Internal Force of Shallow-buried Channel Slab-rib Beam Under the Action of Vehicle Wheel Pressure
  • A Calculation Method for the Internal Force of Shallow-buried Channel Slab-rib Beam Under the Action of Vehicle Wheel Pressure
  • A Calculation Method for the Internal Force of Shallow-buried Channel Slab-rib Beam Under the Action of Vehicle Wheel Pressure

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Embodiment Construction

[0032] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0033] It should be noted that the various symbols involved in the present invention and their meanings are as follows:

[0034] L 0 is the clear span length of the channel plate (m); w is the width of the channel plate (m); b is the width of the rib beam of the channel plate (m); w a is the length of the wheel on the ground (the bottom dimension of the wheel along the driving direction, m); w b is the width of the wheel on the ground (the bottom dimension of the wheel in the vertical direction of driving, m); a is the d...

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Abstract

The invention discloses a method for calculating ribbed beam internal force of a shallow buried channel plate under automobile wheel pressure. The method includes calculating a channel plate wheel pressure sharing coefficient of two ribbed beams; calculating a wheel pressure center position correction coefficient; calculate maximum internal bending moment when the two ribbed beams share the automobile wheel pressure together according to the sharing coefficient and the correction coefficient; calculate maximum shear at a support according to the sharing coefficient and the correction coefficient when the two ribbed beams share the automobile wheel pressure and the distance from the wheel pressure center to the beam end is considered. According to the method, a calculation formula is finerby arrangement of the two ribbed beams, the ribbed beam internal force is reduced, building materials are saved, and the obvious economy is achieved.

Description

technical field [0001] The invention relates to the technical field of municipal engineering. More specifically, it relates to a calculation method for the internal force of a shallow-buried channel plate-rib beam under the action of automobile wheel pressure. Background technique [0002] In municipal projects such as heat and gas, the roof of the basement structure often adopts a grooved plate. When the covering soil is shallow, it is necessary to calculate the internal force of the rib beam and web of the channel plate according to the local uniform load generated by the vehicle wheel pressure. In the calculation of the internal force of the ribbed girder in the past, the wheel pressure of the car was borne by a single rib beam, resulting in the calculation results of the bending moment and shear force of the rib beam being too large; at the same time, the wheel pressure of the car was regarded as a concentrated load, so that The calculation result of rib beam shear for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/13G06F30/20G06F119/14
CPCG06F30/13G06F30/20G06F2119/06
Inventor 杨成永陆景慧李靖马文辉程霖
Owner BEIJING JIAOTONG UNIV
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