Reinforcing steel bar sleeve connecting structure, segmental prefabricated assembled pier and construction method

Abstract

The invention provides a reinforcing steel bar sleeve connecting structure, a segmental prefabricated assembled pier and a construction method. The reinforcing steel bar sleeve connecting structure comprises a foundation, a bottom segment, a bottom joint reinforcing steel bar sleeve, a foundation reserved hole channel, a bottom segment reinforcing steel bar sleeve and the like. When the foundation is constructed, bottom joint steel bar sleeves or reserved hole channels are pre-buried in the positions corresponding to the steel bars, bottom section steel bar sleeves are pre-buried in the positions corresponding to the steel bars when the bottom section is prefabricated, and when the bottom section is spliced with the foundation, the bottom joint steel bar sleeves are sleeved with the bottom section steel bar sleeves one by one, or the bottom section steel bar sleeves penetrate into the reserved hole channels of the foundation one by one. And a reinforcing steel bar penetrates into the bottom section reinforcing steel bar sleeve and the bottom joint reinforcing steel bar sleeve or the reserved hole channel, and a grouting material is injected in a pressing mode to form the reinforcing steel bar sleeve connecting structure. According to the connecting structure, the stress of the bottom joint and the bottom section is remarkably improved, so that the bottom joint and the bottom section are matched with each other in structural arrangement and stress requirements, and the connecting structure can meet the anti-seismic requirements of medium-high seismic areas; and the reinforcing steel bar sleeve connecting structure can adapt to non-matched installation between the prefabricated segment and the foundation, is low in cost and meets the engineering application requirement.

Description

technical field [0001] The invention relates to the technical field of bridge structure construction, in particular to a reinforced casing connection structure, a segmental prefabricated assembled bridge pier and a construction method. Background technique [0002] In recent years, prefabricated buildings have become a research hotspot in the field of engineering. Among them, the scale and number of bridge structures are large, and its prefabricated assembly construction technology is a key research area. As one of the main structures of bridge structures, the safety and durability of bridge piers are related to the reliability of the entire bridge. and longevity. [0003] Segmental prefabricated assembled piers are formed by splicing between prefabricated segments and foundations, and between multiple prefabricated segments. There are splicing joints in different parts. The splicing joints are the key parts of the overall structure. The joint is affected by the structure a...

AI Technical Summary

Problems solved by technology

[0005] 1. The bottom seam is non-matching installation, and the concave and convex shear key cannot be set, and there is no shear key tooth passing through the seam, which reduces its shear strength

[0006] 2. The shear structure of the bottom seam is inconsistent with its actual shear resistance requirements. The force of the bottom seam is larger than that of the middle seam. Due to the limitation of manufacturing and installation, the shear structure of the seam surface is weaker than that of the middle seam. The structure setting Does not match the actual force

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