CN204940861U - Adjustable case beam side steel bracket - Google Patents

Abstract

This patent relates to an adjustable box girder side formwork steel bracket, which includes a lower bracket and an upper bracket. Beam, the supporting upper beam is equipped with multiple vertical supporting columns, the number of supporting upper columns is the same as that of supporting lower columns, and the supporting upper columns and supporting lower columns are connected by column connecting channel steel, and the supporting upper beam is lower The support upper column connected at one end and the support lower column connected with the support upper column are also provided with a square wood fixing frame. The advantage is that this patent can not only save a large amount of square timber but also improve the construction time of the supporting structure of the side form of the box girder.

Description

Adjustable box girder side form steel bracket

technical field

The invention belongs to the technical field of box girder construction, and in particular relates to an adjustable box girder side formwork steel bracket.

Background technique

At present, in the side formwork support of box girders in engineering construction, the steel pipe support and square timber are mainly used in combination to set up the side formwork support system. The support system of steel pipes and square timbers is adopted. The steel pipes are connected together by fasteners, which is inconvenient to install and dismantle, and consumes more man-hours. Due to the flatness requirements of the concrete of the wing plate, the specifications of the square wood supported by the wing plate are relatively strict. After the square wood is used once, it is difficult to use it again. Therefore, the steel pipe and the square wood need to be invested at one time, and the turnover times are less. lead to higher construction costs.

In addition, the square wood support needs to be supported on the steel pipe support. The height of the support is too large and unstable, and the strength of the square wood is not high, so the overall stability is poor.

And, adopt existing supporting method, no matter be the steel pipe of renting or the new steel pipe of purchase and square wood consumption all are bigger, waste material more.

Contents of the invention

The present invention provides an adjustable box girder side form steel bracket to solve the technical problems in the known technology, which can not only save a large amount of square timber but also increase the construction time of the supporting structure of the box girder side form.

An adjustable box girder side formwork steel bracket includes a lower bracket and an upper bracket, the lower bracket includes a horizontal supporting bottom beam, and a plurality of supporting lower columns are vertically arranged on the supporting bottom beam, and the upper bracket includes an inclined supporting upper beam, supporting There are multiple vertical supporting columns on the upper beam. The number of supporting upper columns is the same as that of the supporting lower columns. The support upper column and the support lower column connected with the support upper column are also provided with a square wood fixing frame.

The present invention can also adopt the following technical solutions:

The preferred technical solution, the additional technical features are: the lower end of the supporting upper beam is also hinged with a supporting inclined rib, the supporting bottom beam is hinged with a supporting lower inclined rib, and the supporting upper inclined rib and the supporting lower inclined rib pass through the connecting groove of the inclined rib steel connection.

The preferred technical solution has additional technical features as follows: the supporting upper column connected to the upper end of the supporting upper beam or the supporting lower column connected to the supporting upper column is provided with a longitudinal steel pipe fixing frame.

The advantages and positive effects that the present invention has are:

Because the invention adopts the above-mentioned technical scheme, the steel bracket can be fabricated in pieces and installed separately. According to the construction needs, it can be adjusted to suit box girders of different heights. It is extremely convenient for hoisting, transportation and installation.

The support welded with channel steel once can be reused countless times without additional investment, and the amortized amount of concrete per square is less, avoiding the one-time input cost of using a large amount of square wood with strict size requirements.

Moreover, it is welded by channel steel, and then vertically connected by steel pipes to form a whole. The structure is stable, safe and reliable, which ensures the structural safety of the support system and reduces potential safety hazards.

Because it can be assembled on site. Taking a 90m-long and 2m-high box girder as an example, the old process required 8 people to complete it in three days, while the new process only required 4 people to complete it in two days. Not only reduces the construction period, but also greatly reduces the construction cost.

Description of drawings

Fig. 1 is the structural representation that the present invention creates;

Fig. 2 is a schematic structural view of combining multiple adjustable box girder side formwork steel supports;

In the figure: 1. Supporting the upper beam; 2. Supporting the upper column; 3. Supporting the bottom beam; 4. Supporting the lower column; 1. Longitudinal steel pipe fixing frame; 9. Supporting the upper inclined bar; 10. Supporting the lower inclined bar; 11. The lower support inclined bar; 12. Construction temporary guardrail fixing frame; 13. The bracket is fixedly connected to the longitudinal steel pipe; 1. Holes for tensioning reinforcement; 16. Steel pipe columns for temporary construction guardrails; 17. Longitudinal steel pipes for construction temporary guardrails.

detailed description

In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given hereby, and the details are as follows:

As shown in Figure 1, a kind of adjustable box girder side formwork steel bracket comprises lower bracket and upper bracket, and lower bracket comprises horizontal support bottom beam 3, is vertically provided with a plurality of support lower columns 4 on the support bottom beam, and upper bracket Including the inclined supporting beam 1, the supporting upper beam is provided with a plurality of vertical supporting columns 2, the supporting upper column and the supporting lower column are both 3, and the supporting upper column and the supporting lower column are connected with channel steel through the column 5 connection, the pillar connection channel steel is provided with multiple groups of through holes, and a group of through holes are also respectively provided on the supporting upper column and the supporting lower column, and the hole spacing of the two holes in each group of through holes is the same.

Also be provided with the square wood fixing frame 7 on the support upper column that is connected with the support upper beam by the lower end and the support lower column that is connected with this support upper column, the square wood fixing frame can select angle steel to make for use.

The lower end of the support upper beam is also hinged with a support upper inclined bar 9, and the support bottom beam is hinged with a support lower inclined bar 10, and the support upper inclined bar and the supported lower inclined bar are connected by the inclined bar connecting channel steel 6.

A vertical steel pipe fixing frame 8 is provided on the support upper column connected to the upper end of the support upper beam or the support lower column connected with the support upper column. By fixing multiple pieces of adjustable box girder side form support with longitudinal steel pipes, the support system of the box girder side form can be formed to replace the original support system composed of steel pipe brackets and square timber.

In order to improve the rigidity of the lower support, it is also possible to weld the lower support inclined ribs 11 between the support bottom beam and the support lower column.

In addition, the outer side of the supporting upper beam, that is, the outer end of the supporting upper beam, can be provided with a construction temporary guardrail installation frame 12, which can be used for installing a temporary construction guardrail. The construction temporary guardrail includes a construction temporary guardrail steel pipe column 16 and a construction temporary Guardrail longitudinally connects steel pipe 17, to guarantee the safety of construction personnel.

At the inner end of the supporting bottom beam, there is also a hole 15 for tension reinforcement.

The action principle created by the present invention is:

The specific installation positions of the supporting upper column and the supporting lower column on the column connecting channel steel can be selected as required. Utilize column to connect channel steel to support upper column and support lower column to connect then. In order to strengthen the rigidity, it is also possible to connect the supporting upper inclined bars and the supporting lower inclined bars through the connecting channel steel of the inclined bars. In this way, the basic adjustable box girder side form steel bracket unit is formed. Then use the steel pipe buckle to connect the longitudinal steel pipe 13 and the steel pipe fixing frame 8, connect a plurality of basic adjustable box girder side formwork steel support units, then put the square wood on the square wood fixing frame, and construct the temporary guardrail Load onto construction temporary guardrail 14 on the installation frame. The construction of the box girder side form support system can be completed.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art Under the enlightenment of the present invention, many forms can be made without departing from the purpose of the present invention and the protection scope of the claims, and these all belong to the protection scope of the present invention.

Claims (3)

1. An adjustable box girder side formwork steel support, comprising a lower support and an upper support, is characterized in that: the lower support comprises a horizontal support bottom beam, and the support bottom beam is vertically provided with a plurality of supporting columns, and the upper support includes an inclined The supporting upper beam, the supporting upper beam is provided with a plurality of vertical supporting columns, the number of supporting upper columns is the same as that of the supporting lower columns, and the supporting upper columns and the supporting lower columns are connected by column connecting channel steel, and the supporting upper columns are connected with the supporting upper columns. The support upper column connected to the lower end of the beam and the support lower column connected with the support upper column are also provided with a square wood fixing frame. 2. The adjustable box girder side formwork steel support according to claim 1, characterized in that: the lower end of the supporting upper beam is also hinged with a supporting inclined rib, and the supporting bottom beam is hinged with a supporting inclined rib, The supporting upper inclined bar and the supporting lower inclined bar are connected through the connecting channel steel of the inclined bar. 3. The adjustable box girder side formwork steel bracket according to claim 1, characterized in that: the supporting upper column connected to the upper end of the supporting upper beam or the supporting lower column connected with the supporting upper column is provided with a longitudinal steel pipe fixed frame.