Method for determining rigidity and bearing capacity of shear connector
A shear connector and stiffness technology, applied in the fields of instrumentation, electrical digital data processing, geometric CAD, etc., can solve the problems of lack of theoretical support, lack of research on angle steel and T steel connectors, etc.
Active Publication Date: 2020-01-17
CCCC HIGHWAY CONSULTANTS +3
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Problems solved by technology
[0004] Although the traditional connector design method is relatively mature, there are relatively few studies on angle steel and T-steel connectors. The existing design methods are only based on the results of experimental regression and lack theoretical support.
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[0085] In order to make the technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0086] Basic theory of the present invention is elastic foundation beam theory, and in this theory, following assumption is arranged:
[0087] (1) The spring stiffness is constant and only related to the concrete modulus;
[0088] (2) The stiffness of the foundation beam is a constant, which is the stiffness of the web of the connector;
[0089] (3) Constrained by the flange of the connector, the top corner of the foundation beam is 0;
[0090] (4) Constrained by the connected flange plate, the bottom corner of the foundation beam is 0.
[0091] Based on the above theory, the present invention proposes a method for determining the stiffness and bearing capacity of the shear connectors of the compartment type double steel plate-concrete composit...
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The invention provides a method for determining the rigidity and the bearing capacity of a shear connector. The method comprises the steps that a connecting piece web of a bulkhead type double-steel-plate-concrete combined structure serves as a foundation beam, concrete serves as a foundation, an elastic foundation beam model is established, and a general solution of a differential equation of theelastic foundation beam model is obtained through calculation according to the elastic foundation beam model; the shear connector is analyzed according to a model corresponding to the bulkhead type double steel plate-concrete composite structure, a boundary condition is determined, and a rigidity parameter of the shear connector is calculated and obtained according to the boundary condition and the shear-deformation relationship; and based on the elastic foundation beam theory, the ultimate bearing capacity of the shear connector is obtained through calculation according to the plasticity development coefficient. By applying the method, the rigidity and the bearing capacity of the shear connector can be accurately predicted.
Description
technical field [0001] The present application relates to the technical field of building structures, and in particular to a method for determining the stiffness and bearing capacity of a shear connector of a compartment type double steel plate-concrete composite structure. Background technique [0002] Due to the advantages of less impact on water shipping, less land occupation and demolition, less affected by bad weather, immersed tube tunnels are increasingly replacing bridges as tools for crossing rivers and bays. Immersed tube tunnels can be mainly divided into two categories: concrete immersed tube tunnels and steel shell immersed tube tunnels. The steel shell is light in weight and can be used as a formwork for concrete pouring, so it can realize floating pouring on water and greatly reduce the workload of consignment on water. The steel shell also has good ductility and water resistance, which improves the ductility and durability of the structure. Hardened concrete...
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IPC IPC(8): G06F30/13G06F30/20G06F119/14
Inventor 徐国平聂建国樊健生唐亮刘洪洲黄清飞邱盛源郭宇韬
Owner CCCC HIGHWAY CONSULTANTS