Equal-section steel concrete combined double-layer bearing plate force-transmitting anchoring structure

Abstract

The invention discloses an equal-section steel concrete combined double-layer bearing plate force-transmitting anchoring structure, and relates to the technical field of bridge engineering. The equal-section steel concrete combined double-layer bearing plate force-transmitting anchoring structure can include a first-layer bearing plate and a second-layer bearing plate, the first-layer bearing plate is arranged at a starting position of a steel concrete combined section, and the second-layer bearing plate is arranged inside the steel concrete combined section; and the inner side of a steel structure wall plate of the steel concrete combined section is provided with a PBL shear key and a shear nail. The equal-section steel concrete combined double-layer bearing plate force-transmitting anchoring structure has the advantages of being smooth in stress transmission path, uniform in stress diffusion, reliable in force and simple and beautiful in design appearance.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a force-transmitting and anchoring structure of equal-section steel-concrete combined with double-layer bearing plates. Background technique [0002] Large-scale stressed members such as steel towers and steel arches usually change from steel cross-sections to concrete cross-sections, resulting in a steel-concrete joint section. For the entire bridge, the steel-concrete joint section of the steel tower and steel arch is the key part of the force. , the reasonable transition of steel stress to concrete stress, and avoiding a series of diseases caused by stress concentration are the key breakthroughs in the design. [0003] With the development of the bridge industry today, the requirements for the landscape are getting higher and higher, and the appearance of the bridge components is required to be more beautiful. The traditional way of combining by enlarging the concre...

AI Technical Summary

Problems solved by technology

The existing steel-concrete equal-section connection mainly adopts a single-layer bearing plate anchor structure, that is, a single-layer bearing plate + a section of shear nail + a section of PBL shear key + a single-layer prestressed member anchorage structure, there is a steel-concrete combination The stress transmission route of the section is too short, the stress is concentrated, and the force is unreliable, etc.

[0004] Aiming at the problem of stress concentration in the steel-concrete joint section of the large-scale force-bearing members represented by steel towers and steel arches in the bridge structure, the existing structural form of the steel-concrete joint section represented by the single-layer pressure-bearing plate anchor structure has not been compared. well resolved

Images