Design method for sectional reinforcement area of reinforced concrete lining of tunnel

A technology of reinforced concrete and cross-sectional area, which is applied in the direction of tunnel lining, tunnel, shaft lining, etc., can solve the problems of cumbersome calculation process, achieve the effect of simplifying the design calculation process and improving design efficiency
CN106529004AActive Publication Date: 2017-03-22CHINA RAILWAY ERYUAN ENG GRP CO LTD
3 Cites 6 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA RAILWAY ERYUAN ENG GRP CO LTD
Publication Date
2017-03-22

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a design method for a sectional reinforcement area of a reinforced concrete lining of a tunnel. According to the method, the design calculation efficiency of the reinforced concrete lining of the tunnel is effectively improved; and the method has the characteristics of quickness and accuracy. When a sectional eccentric distance of the lining is greater than an effective sectional height by 0.55 times, a maximum crack width limit value omega max is taken as a known parameter, and then calculation is performed according to different conditions, so that a longitudinal reinforcement section area As of a tensile region of the section, meeting the requirement of the maximum crack width limit value omega max, of the lining is obtained.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a tunnel, in particular to a method for designing the cross-section reinforcement area (reinforcement amount) of the reinforced concrete lining of the tunnel. Background technique

[0002] When designing the reinforced concrete lining structure of the tunnel, the internal force of the lining section is calculated according to the design load, and then the steel bar area that meets the bearing capacity requirements is calculated according to the internal force of the section and the safety factor specified in the code. When the eccentricity of the lining section is greater than 0.55 times the effective section height, A maximum crack width requirement also needs to be met.

[0003] The traditional method of checking and calculating the maximum crack width is to first calculate the maximum crack width of the lining section according to the reinforcement area (reinforcement amount) that meets the bearing capacity requirements. If ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More