Multidirectional reinforcing steel connecting device

Abstract

The invention relates to a multidirectional reinforcing steel connecting device, which includes a upper part structure. The upper part structure is provided with a bolt hole, the lower part of the upper part structure is provided with four cylindrical grooves, and the all faces of the upper part structure are provided with two L-shaped grooves correspondingly; and the lower part structure is provided with a bolt hole, the all faces of the lower part structure are provided with piecing and inserting bodies which can be pieced and inserted with the L-shaped grooves of the upper part structure, the upper surface of the lower part structure is provided with four cylindrical protrusions, and the cylindrical protrusions are closely inserted into the grooves of the upper part structure together.According to the multidirectional reinforcing steel connecting device, fast and accurate positioning connection between reinforcing bars can be carried out in the three directions of space, multidirectional connection of the reinforcing bars can be realized, operation is easy and convenient, and the functions are various; and fast and accurate positioning connection between the reinforcing bars can be realized, thus the construction progress of the reinforced concrete structure is improved, and the multidirectional reinforcing steel connecting device is mainly used in beam-column joints and beam-beam joints.

Description

technical field [0001] The invention belongs to the technical field of construction, in particular to a multi-directional steel bar connection device. Background technique [0002] Ribbed steel bar, also known as threaded steel bar, deformed steel bar or rebar, is widely used in all aspects of construction engineering, especially in the production of reinforced concrete. At present, in the construction industry, traditional steel bar connection methods include lap joints, welding and other connection methods, which cannot meet the needs of the construction industry in terms of connection quality, efficiency or operability. The lap connection method cannot be used for the connection of large-scale steel bars. However, welding has many shortcomings: such as unstable steel material, poor weldability, etc., tight construction schedule or poor welder level, unstable power supply, insufficient capacitance, weather effects such as wind, rain and cold, and high fire protection requ...

AI Technical Summary

Problems solved by technology

At present, in the construction industry, traditional steel bar connection methods include lap joints, welding and other connection methods, which cannot meet the needs of the construction industry in terms of connection quality, efficiency or operability

The lap connection method cannot be used for the connection of large-scale steel bars

However, welding has many shortcomings: such as unstable steel material, poor weldability, etc., tight construction schedule or poor welder level, unstable power supply, insufficient capacitance, weather effects such as wind, rain and cold, and high fire protection requirements. The construction situation of the site

[0003] Connecting sleeves are usually used to connect the steel bar heads of two ribbed steel bars. In my country's construction industry standard (JG163-2004), the material of the connecting sleeve, thread connection strength, quality inspection standards, packaging and transportation, etc. have been made. There are clear regulations, but the "standard" does not make clear regulations on the shape of the connecting sleeve

[0004] At the same time, the inventor found in practice that there are problems in the use of the connecting sleeve of the aforementioned structure. This problem is mainly reflected in: because the surface of the connecting sleeve is smooth, the tool has no point of force and is easy to slip, which increases the difficulty of construction and reduces the In addition, it may lead to the inconsistency between the adhesion between the connecting sleeve and the concrete joint and the adhesion between the ribbed steel bar and the concrete joint, which will lead to the structure at the buried position of the connecting sleeve on the reinforced concrete. There are local quality hidden dangers in the body, so that the reinforced concrete at the connecting sleeve cannot share the load stress with the reinforced concrete at the ribbed steel bar when the reinforced concrete is stressed, and in severe cases, the reinforced concrete may break or peel off at the connecting sleeve

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