Reinforcement design method of reinforced concrete members subjected to complex loads based on force transfer path

A technology for reinforced concrete and stressed components, applied in design optimization/simulation, calculation, special data processing applications, etc., can solve problems such as unreasonable, ignoring the nonlinear characteristics of concrete components, and lack of reinforcement methods

CN109344437AActive Publication Date: 2019-02-15HUNAN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-02-15

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Abstract

The invention belongs to the technical field of structural design of civil engineering, The reinforcement design method of reinforced concrete complex mechanical members based on force transfer path is mainly used for reinforcement design of reinforced concrete complex mechanical members which do not conform to plane section assumption, such as deep beams, shear walls and the like, including (1) obtaining the force transfer path of reinforced concrete complex mechanical members; (2) carrying out Reinforcement design according to the path of force transfer; (3) performing consolidation and finishing of reinforcing bars; (4) performing Structural design of components. The present invention is based on the idea that the reinforcement design of the reinforced concrete complex stressed member is carried out with the force transmission path as the starting point, It can change the situation that the rough design of traditional empirical design method leads to low precision and only based ontest statistics leads to insufficient theoretical support, and provides a new technical thinking for the reinforcement design of complex structural members or new materials which are difficult to be solved more accurately nowadays.
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Description

Technical field

[0001] The invention belongs to the technical field of structural design of civil engineering, and specifically relates to a reinforcement design method of reinforced concrete complex force-bearing members based on force transmission paths, and is mainly used for the reinforcement design of reinforced concrete complex force-bearing members that do not meet the assumption of a flat section, such as Deep beams, shear walls, etc. Background technique

[0002] In the structural design industry in civil engineering, for two-dimensional components with complex stress distributions, such as shear wall structures, the deformation has completely failed to meet the assumption of flat section, so it is extremely unreasonable to simplify the design into a bar structure.

[0003] Regarding the design of the reinforcement of the shear wall in the reinforced concrete complex bearing member, the design ideas of China and the United States for the shear wall are as follows:

[0004] ...

Examples

Embodiment Construction

[0092] The specific technical solutions of the present invention are described in conjunction with the embodiments.

[0093] Taking two-span continuous deep beam as an example, the concrete design strength is C30, and the elastic modulus is E c =3×10 4 N / mm 2 , Poisson’s ratio μ=0.2, size: cross-section length is 2000mm, cross-section height is 500mm, cross-section width is 120mm, and the thickness of the protective layer is taken as a s = 30mm, the steel bar strength is HRB335. Two concentrated forces of 500kN are applied to the top of the continuous beam as Figure 5 Shown.

[0094] 1) Through genetic evolution optimization-GESO, the force transmission path of this structure is obtained as Image 6 , After getting the power transmission path, sort it out, the sorting result is as Figure 7 .

[0095] 2) Reinforcement design is carried out through the force transmission path to obtain the final reinforcement diagram

[0096] According to the "Specification for Design of Concrete Stru...