CN205382568U - Pre -embedded sleeve connection structure who adds girder steel behind concrete column - Google Patents

Abstract

The utility model relates to a pre-embedded sleeve connection structure in which a steel beam is added behind a concrete column. It includes several straight threaded steel sleeves, the straight threaded steel sleeves are welded together with the anchor plate perforated plug, the rear end of the straight threaded steel sleeves is connected to the anchor bars, the anchor plate, the straight threaded steel sleeves, and the anchor bars are integrated It is pre-buried on the side of the column or wall or beam; it also includes steel beams. Open a hole at the position of the steel beam end plate corresponding to the round hole of the straight threaded steel sleeve, install the rolled straight threaded short tendon as a bolt and tighten it with the nut to tighten the steel Beams are integrated with columns or walls or beams to support the floor. While realizing the function of transmitting internal force, the utility model saves material and labor costs, ensures construction accuracy, avoids damage to the concrete of the column member, reduces construction difficulty, and ensures the durability of the connection.

Description

Pre-embedded sleeve connection structure of steel beam added behind concrete column

technical field

The utility model relates to a connection structure between a steel beam and a concrete column, in particular to a pre-embedded sleeve connection structure in which a steel beam is added behind a concrete column.

Background technique

Post-added steel beams and columns are usually connected in two ways: pre-embedded and post-planted reinforcement.

Conventional pre-embedded parts are generally anchor plates and straight anchor bars. If steel beams are added later, the connecting plates need to be welded on site. The workload on site is more, and the concrete in the local welding heat affected area is damaged, and the concrete elastic modulus and compressive strength reduce. If the four sides of the column are welded, the influence range is relatively large.

If the post-planted chemical anchor bolts are used, the on-site construction workload is large, the positioning is not suitable, and the longitudinal reinforcement and stirrups in the column may be damaged. The cost is also high, and the durability of the chemical adhesive material is also limited.

The straight thread sleeve has low cost, convenient pre-embedded construction, small error, good stress transmission, reduced on-site construction overwork, and easy quality assurance.

Utility model content

The purpose of the utility model is to provide a pre-embedded sleeve connection structure with a steel beam behind the concrete column, which mainly solves the technical problems in the above-mentioned prior art. The utility model realizes the function of transmitting internal force while saving material and labor costs , Ensure the construction accuracy, avoid damage to the concrete of the column members, reduce the construction difficulty, and ensure the durability of the connection.

In order to achieve the above object, the utility model is achieved in this way.

A steel beam pre-embedded sleeve connection structure behind a concrete column is characterized in that it includes several straight threaded steel sleeves, the straight threaded steel sleeves are integrally welded with the anchor plate perforation plug, and the straight threaded steel sleeves The rear end is connected to the anchor bar, the anchor plate, the straight threaded steel sleeve, and the anchor bar are pre-embedded on the side of the column or wall or beam as a whole; the steel beam is also included, and a hole is opened at the position of the steel beam end plate corresponding to the round hole of the straight threaded steel sleeve , install rolled straight thread short ribs as bolts and tighten them with nuts and connect steel beams with columns or walls or beams as a whole to support the floor slab.

The pre-embedded sleeve connection structure of the steel beam behind the concrete column is characterized in that: the straight thread steel sleeve is directly welded and connected with the anchor plate, and the anchor bar adopts a rolled straight thread short bar.

The utility model has the beneficial effects of avoiding damage to concrete components by welding, avoiding damage to steel bars by post-drilling, low cost, convenient pre-embedded construction with high precision, better stress transmission, and reduced on-site construction overwork and quality Easy to guarantee, fast construction speed and good durability.

Description of drawings

Fig. 1 is a side view of the integral embedded part connected by the utility model.

Fig. 2 is a front view of the integral embedded part connected by the utility model.

Fig. 3 is a front view of the utility model.

Fig. 4 is the axial side assembly diagram of the utility model, which expresses the steel beam and the columns at both ends (the gap between the beam and the column is only 5mm on site, and the distance is widened in this figure for the convenience of seeing).

In the figure: 1-anchor plate; 2-straight threaded steel sleeve, 3-anchor bar, 4-column (or wall or beam), 5-steel beam, 6-hole, 7-bolt, 8-nut, 9 -Pierce plug welding.

detailed description

Please refer to Fig. 1-4, they are a kind of steel beam pre-embedded sleeve connection structure added behind the concrete column of the present utility model. As shown in the figure: it includes several straight thread steel sleeves 2, the straight thread steel sleeves 2 are connected as a whole by welding with the anchor plate 1 perforated plug, the rear end of the straight thread steel sleeve 2 is connected to the anchor bar 3, and the anchor plate 1 , the straight threaded steel sleeve 2 and the anchor bar 3 are pre-embedded in the column 4 or the wall or beam side as a whole; it also includes the steel beam 5, and the hole 6 is opened at the end plate of the steel beam 5 corresponding to the straight threaded steel sleeve 2 round hole position, Install the rolled straight thread short rib as the bolt 7 and tighten it with the nut 8 and connect the steel beam 5 with the column 4 or the wall or the beam as a whole for supporting the floor slab.

In the utility model, what is directly welded and connected with the anchor plate 1 is a straight thread steel sleeve 2, and the anchor bar 3 adopts a rolled straight thread short bar.

In the utility model, the length of the anchor bar 3 can be adjusted according to the needs of shear resistance or bending shear resistance.

In the present utility model, when the steel beam 5 is connected with the column 4, it is not necessary to apply welding on the anchor plate to connect the connecting plate;

In the utility model, during the use period before the steel beam is added, there are no protruding bolts or connecting plates outside the column skin, which does not hinder the decoration of the column surface.

In the utility model, there are no protruding bolts or connecting plates outside the column skin, which is convenient for the steel beam to be in place when the length is equal to the net span of the column.

In the utility model, it is not limited to the column side, and is also applicable to the shear wall side and the concrete main beam side.

To sum up, the above are only preferred embodiments of the present utility model, and are not intended to limit the implementation scope of the present utility model. That is, all equivalent changes and modifications made according to the content of the patent scope of the utility model should be within the technical category of the utility model.

Claims (2)

1. A pre-embedded sleeve connection structure with a steel beam behind a concrete column, characterized in that it includes several straight threaded steel sleeves (2), and the straight threaded steel sleeves (2) are perforated with the anchor plate (1) The plug welding connection is integral, the straight threaded steel sleeve (2) is connected to the anchor bar (3) at the rear end, the anchor plate (1), the straight threaded steel sleeve with anchor bar (2), and the anchor bar (3) are pre-embedded as a whole On the side of the column (4) or wall or beam; also includes the steel beam (5), open a hole (6) at the end plate of the steel beam (5) corresponding to the round hole of the straight thread steel sleeve (2), and install the rolled straight thread Short ribs are used as bolts (7) and tightened with nuts (8) to connect steel beams (5) with columns (4) or walls or beams to support the floor. 2. The pre-embedded sleeve connection structure of steel beams added after concrete columns according to claim 1, characterized in that: the straight threaded steel sleeve (2) is directly welded to the anchor plate (1), and the anchor bar (3 ) using rolled straight thread short ribs.