CN211172029U - Steel purlin temporary support device - Google Patents

Abstract

The utility model discloses a temporary support device for a steel purlin, comprising a support frame (6), a support frame fixing piece (7), a bolt (8) and an adjustment hole (9); the support frame fixing piece is provided with a long strip of Adjusting hole, the fixing piece of the support frame is fixed on the concave wall surface (2) of the Larsen steel sheet pile; the support frame is a right-angled triangular frame structure and is provided with a mounting hole (5); a right-angle side of the support frame is attached to the concave wall surface and is bolted It is fixed on the fixing piece of the support frame through the installation hole and the adjustment hole, and the other right-angle side is attached to the steel purlin (4) and fixed on the steel purlin and the inner support (12) through the installation hole through bolts. The utility model can support the steel purlin and the steel sheet pile through the support frame of the triangular structure, strengthen the anti-shearing and anti-slip ability of the steel purlin, and adjust the position of the support frame through the long-shaped adjusting hole on the fixing piece of the support frame, It ensures the precise installation of the steel purlins, thereby improving the stability of the entire support system.

Description

Steel purlin temporary support device

technical field

The utility model relates to a connecting and reinforcing device for a steel purlin, in particular to a temporary supporting device for a steel purlin.

Background technique

With the continuous emergence of large-scale water bridges in my country, the basic structure form of the underwater pile cap is widely used. In the construction project of a super bridge, the water cap is constructed with steel sheet piles by static pressure planting. After the steel cofferdam piles are planted, the steel enclosure purlins are installed. Steel cofferdams play an important role in maintaining the planar shape of the assembly, fixing steel supports, connecting the envelope as a whole, and transferring loads. In the existing construction process, the steel purlin is supported by a bracket or a hanger. Since the dimensions of the steel purlin bracket and the hanger are fixed, and installation errors are inevitable during the construction process, the steel purlin bracket of the prior art and The hanging frame cannot be adjusted, which affects the installation accuracy and engineering quality of the steel purlin. At the same time, the support structure with installation errors cannot guarantee the support stability of the steel purlin, and the safety hazard is great.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a temporary support device for steel purlins, which can support steel purlins and steel sheet piles through a triangular structure support frame, strengthen the shear resistance and anti-slip capabilities of the steel purlins, and fix them through the support frame. The elongated adjustment holes on the sheet adjust the position of the support frame to ensure the precise installation of the steel purlin, thereby improving the stability of the entire support system.

The utility model is realized in this way:

A temporary support device for a steel purlin, the supporting device is installed between a steel sheet pile and a steel purlin, and the convex walls of the two steel sheet piles are connected and fixed by the inner support through the steel purlin;

The support device includes a support frame, a support frame fixing piece, bolts and adjustment holes; the steel sheet pile is a Larsen steel sheet pile, the support frame fixing piece is provided with a long strip-shaped adjustment hole, and the two support frame fixing pieces are respectively fixed on the pulley. The concave wall surface of the Larsen steel sheet pile; the support frame is a right-angled triangular frame structure, and the three corners of the support frame are provided with mounting holes; a right-angled side of the support frame is attached to the concave wall surface of the Larsen steel sheet pile, and The two ends of the right-angle side are respectively fixed on the fixing plate of the support frame through the mounting hole and the adjustment hole by bolts, so that the support frame can move up and down along the long adjustment hole and is relatively fixed with the fixing plate of the support frame through the nut; A right-angled edge is attached to the steel purlin, and the third end of the support frame is fixed on the steel purlin and the inner support by bolts through the mounting holes, and is locked by nuts.

Both ends of the elongated adjusting hole are arc structures, and the arc structures can fit the contour of the bolt.

The support frame is composed of three steel structures assembled end to end in sequence.

The fixing piece of the support frame and the concave wall surface of the steel sheet pile are welded into an integral structure.

The steel cofferdam is a double-joint H-shaped steel cofferdam.

The utility model can support the steel purlin and the steel sheet pile through the support frame of the triangular structure, strengthen the anti-shearing and anti-slip ability of the steel purlin, and adjust the position of the support frame through the long-shaped adjusting hole on the fixing piece of the support frame, It ensures the precise installation of the steel purlin, thereby improving the stability of the entire support system and ensuring the construction quality. The structure is simple and the construction is convenient. It is suitable for the maintenance and support of bridge foundations in water or other large foundation pits.

Description of drawings

Fig. 1 is the construction front view of the utility model steel purlin temporary support device;

Fig. 2 is the perspective view of the support frame fixing piece of the steel purlin temporary support device of the present utility model;

Fig. 3 is the sectional view of the utility model steel purlin temporary support device;

4 is a front view of the support frame in the temporary support device for steel purlins of the present invention.

In the figure, 1 steel sheet pile, 2 concave wall surface, 3 convex wall surface, 4 steel purlin, 5 mounting holes, 6 supporting frame, 7 supporting frame fixing plate, 8 bolts, 9 adjusting holes, 10 arc structure, 11 nuts, 12 inner support.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

Please refer to FIG. 1 , a temporary support device for steel purlins. The support device is installed between a steel sheet pile 1 and a steel purlin 4. The convex wall surfaces 3 of the two steel sheet piles 1 pass through the steel purlin 4 through the steel purlin. The inner support 12 is connected and fixed.

Please refer to accompanying drawings 1 to 3, the supporting device includes a supporting frame 6, a supporting frame fixing piece 7, a bolt 8 and an adjustment hole 9; the steel sheet pile 1 is a Larsen steel sheet pile, and the supporting frame fixing piece 7 is provided with Long strip-shaped adjustment holes 9, two support frame fixing pieces 7 are respectively fixed on the concave wall surface 2 of the Larsen steel sheet pile; please refer to FIG. 4, the support frame 6 is a right-angled triangular frame structure, and the three support frame 6 There are mounting holes 5 on the corners; a right-angled side of the support frame 6 is attached to the concave wall surface 2 of the Larsen steel sheet pile, and the two ends of the right-angled side are respectively fixed by bolts 8 through mounting holes 5 and adjustment holes 9 On the support frame fixing sheet 7, the support frame 6 can move up and down along the long adjustment hole 9 and is relatively fixed with the support frame fixing sheet 7 through the nut 11; the other right-angle side of the support frame 6 is attached to the steel purlin 4, the third end of the support frame 6 is fixed on the steel purlin 4 and the inner support 12 through the bolt 8 through the mounting hole 5, and is locked by the nut 11.

Both ends of the long adjustment hole 9 are arc structures 10 , and the arc structures 10 can fit the contour of the bolt 8 , which facilitates the installation and positioning of the bolt 8 at both ends of the adjustment hole 9 .

The support frame 6 is composed of three steel structures assembled end to end in sequence, and a steel structure of suitable size can be selected according to the actual construction conditions to make the support frame 6 to ensure that the support frame 6 can provide sufficient shear and anti-slip capabilities. Preferably, the support frame 6 can be assembled by welding three angle steels.

The support frame fixing piece 7 is welded with the concave wall surface 2 of the steel sheet pile 1 to form an integral structure, which has high strength and good support stability.

The steel cofferdam 4 is a double-joint H-shaped steel cofferdam.

During construction, the steel sheet pile 1 adopts the Larsen steel sheet pile with a U-shaped cross section in the prior art. Inner support 12. In order to ensure the installation accuracy of the steel purlin 4, two pieces of support frame fixing pieces 7 are first welded on the concave wall surface 2 of the steel sheet pile 1. The two pieces of support frame fixing pieces 7 are provided with a long adjustment hole 9. The adjustment hole The upper and lower parts of the 9 are arc structures 10, which can be used for the passage, adjustment and fixing of the bolts 8. After welding the support frame fixing piece 7, use the assembled and welded triangular steel angle steel support frame 6, insert the bolt 8 through the installation hole 5 and the adjustment hole 9, and use the nut 11 to lock and consolidate the support frame 6 and the support frame fixing piece 7. , It can be adjusted up and down through the long adjustment hole 9 according to the actual construction situation on site, which improves the installation accuracy of the steel purlin 4, strengthens the shear resistance and anti-slip ability, thereby improving the stability of the entire support system.

The above are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be Included within the scope of protection of the present invention.

Claims (5)

1. A temporary supporting device for a steel purlin is arranged between steel sheet piles (1) and the steel purlin (4), and the two steel sheet piles (1) are fixedly connected through the steel purlin (4) through an inner support (12);

the method is characterized in that: the supporting device comprises a supporting frame (6), a supporting frame fixing piece (7), a bolt (8) and an adjusting hole (9); the steel sheet pile (1) is a Larsen steel sheet pile, strip-shaped adjusting holes (9) are formed in the support frame fixing pieces (7), and the two support frame fixing pieces (7) are respectively fixed on the concave wall surface (2) of the Larsen steel sheet pile; the support frame (6) is of a right-angled triangle frame structure, and mounting holes (5) are formed in three corners of the support frame (6); one right-angle side of the support frame (6) is attached to the concave wall surface (2) of the Larsen steel sheet pile, and two ends of the right-angle side are fixed on the support frame fixing piece (7) through the mounting hole (5) and the adjusting hole (9) through bolts (8) respectively, so that the support frame (6) can move up and down along the long-strip-shaped adjusting hole (9) and is relatively fixed with the support frame fixing piece (7) through a nut (11); the other right-angle side of the support frame (6) is attached to the steel surrounding purlin (4), and the third end of the support frame (6) is fixed to the steel surrounding purlin (4) and the inner support (12) through a bolt (8) through a mounting hole (5) and locked through a nut (11).

2. The temporary supporting device for the steel purlin of claim 1, which is characterized in that: the two ends of the long strip-shaped adjusting hole (9) are arc-shaped structures (10), and the arc-shaped structures (10) can be attached to the outline of the bolt (8).

3. The temporary supporting device for the steel purlin of claim 1, which is characterized in that: the support frame (6) is formed by sequentially assembling three steel structures from head to tail.

4. The temporary supporting device for the steel purlin of claim 1, which is characterized in that: the supporting frame fixing piece (7) and the concave wall surface (2) of the steel sheet pile (1) are welded into an integral structure.

5. The temporary supporting device for the steel purlin of claim 1, which is characterized in that: the steel purlin (4) is a double-spliced H-shaped steel cofferdam.

Images