Steel bar anchoring connection structure and connection method for precast fabricated concrete components

Abstract

The invention discloses a steel bar anchoring connection structure and connection method for precast fabricated concrete components. The steel bar anchoring connection structure comprises the first precast concrete component and the second precast concrete component located above the first precast concrete component, and the bottom of the second precast concrete component is provided with a steel bar anchoring preserved hole used for anchoring of a first steel bar pre-embedded in the first precast concrete component; a grouting structure is arranged in a cavity between the steel bar anchoring preserved hole and the first steel bar; the steel bar anchoring preserved hole is located on the outer side of the lower portion of a second steel bar laid out in the second precast concrete component, and multiple grooves are formed in the inner side wall of the steel bar anchoring preserved hole. The steel bar anchoring connection method comprises the first step of precasting of the second precast concrete component, the second step of hoisting of the second precast concrete component and inserting mounting of the first steel bar, the third step of grouting and the fourth step of maintenance. The steel bar anchoring connection structure and connection method for the precast fabricated concrete components are reasonable in design, convenient to achieve, good in use effect, capable of completing the steel bar connection process easily, conveniently and rapidly and reliable in connection.

Description

technical field [0001] The invention belongs to the technical field of construction of prefabricated assembled concrete components, and in particular relates to a reinforcement anchorage connection structure and connection method of prefabricated assembled concrete components. Background technique [0002] The development of construction industrialization is the fundamental transformation of the construction production mode from extensive production to intensive production, and it is the inevitable way and development direction of industrial modernization. The use of prefabricated concrete structures is an effective way to realize the industrialization of buildings. It is a concrete structure made of prefabricated concrete components as the main component, which is assembled, connected and partially cast in place. Foreign concrete prefabricated components and reinforced concrete started almost at the same time, but industrialized prefabricated concrete components in the mode...

AI Technical Summary

Problems solved by technology

However, the existing reserved holes for anchorage of steel bars are reserved holes with smooth inner walls, and the bonding effect between the holes and the pouring mortar is poor, which increases the overlapping length of steel bars and increases the amount of grouting materials, resulting in poor economic benefits.

In addition, at present, there is no unified, standardized and specific construction method to follow when connecting prefabricated concrete structures. In actual construction, it is inevitable that the construction operations are relatively random, irregular, cumbersome, and the construction workers are low. Problems such as poor connection quality

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