Abstract
As one of the important components of the joint connection in the steel-concrete structure, the embedded parts of straight anchors have a great influence on the safety performance of the structure. People have different opinions on the mechanism of the force of the embedded parts, and the calculation method of the bearing capacity of the embedded parts is also different. In this paper, the research on the theory of the sheared and tension-sheared parts of embedded parts of straight anchors in the previous literature and the current norms is conducted, and the existing calculation methods of the ultimate bearing capacity are compared. The calculation method is compared with the experimental results, and the theoretical verification analysis is performed. The research results show that: Nowadays, the calculation of the shear capacity of the anchored parts of the anchors is conservative, and there are some factors that have not been considered, so they are much smaller than the actual bearing values. For the shearing ability, the two are the calculated values whcih are close to the correlation between the pulling and shearing. When the embedded parts are damaged, the anchors fully give full play to the tension-shear effect, which can be used in the project.
Highlights
The embedded parts of straight anchors are made up of concrete, consisting of anchor plate and anchor, external steel structure and other structural connecting parts
The existing research has made a detailed study on the mechanical model and bearing capacity calculation formula of the embedded parts of straight anchors
The anchor rib in the embedded parts of straight anchors of the test is steel with a diameter of 20 mm; the anchor plate is made of manganese steel plate with a thickness of 12 mm according to the specification requirements; the end plate of the component is a manganese steel plate with a thickness of 12 mm
Summary
The embedded parts of straight anchors are made up of concrete, consisting of anchor plate and anchor, external steel structure and other structural connecting parts. The existing research has made a detailed study on the mechanical model and bearing capacity calculation formula of the embedded parts of straight anchors. Due to the different understanding of the force model of the embedded parts, the existing calculation methods for the bearing capacity of the embedded parts are not the same. The mechanical model of the embedded parts of straight anchors under the two conditions of shear and tension-shear is studied, and the existing calculation methods of ultimate bearing capacity are compared. The existing calculation methods are compared with the experimental results, conducting theoretical verification analysis research
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