Angle self-adaptive steel anchor beam and construction method thereof

Abstract

The invention discloses an angle self-adaptive steel anchor beam and a construction method thereof. The angle self-adaptive steel anchor beam comprises a cross beam, two sets of supports and anchor pad sliding blocks. Notches are formed in the two ends of a top plate of the cross beam. The supports are fixed to the two ends of a top plate of the cross beam respectively, and arc-shaped supporting panels are fixed to the supports. A hole is formed in the middle of the arc-shaped supporting panel; blocking strips are arranged on the edges of the two sides of the arc-shaped supporting panel. The anchor pad sliding block is composed of a fixing plate, an arc-shaped plate and a connecting part, the fixing plate is fixedly installed at one end of the connecting part, the other end of the connecting part is connected with the inner wall of the arc-shaped plate, the arc-shaped plate is placed on the arc-shaped supporting face, and the outer surface of the arc-shaped plate is matched with the arc-shaped supporting face. And a round hole is formed in the fixed plate. According to the angle-adjustable steel anchor beam, the angle-adjustable effect is achieved by adopting the form of the arc-shaped panel and the anchor pad sliding block, so that one steel anchor beam can be applied to different construction scenes, self-adaptive adjustment can be performed according to various required angles, and the effects of improving the utilization rate and reducing the cost are achieved.

Description

Technical Field

[0001] The invention relates to the field of inclined-stayed buckle-hanging system construction and arch bridge construction, and more specifically to an angle-adaptive steel anchor beam and a construction method thereof. Background Art

[0002] At present, the construction of arch bridges generally adopts the method of inclined stay and buckle hanging. Due to the different on-site construction conditions and arch bridge types, the angles of steel strands are different in different arch bridge constructions, resulting in different anchor beam designs for steel strands. The anchor beams at each location need to be designed and processed separately. The number of steel anchor beams used is large and the cost is high. Traditional steel anchor beams usually have a fixed angle and cannot be adjusted. When the angles of steel strands are different, turnover cannot be achieved. Different steel anchor beams need to be designed and processed for steel strands with different angles. Summary of the invention

[0003] This patent improves the steel anchor beam to address the above-mentioned problems and designs an angle-adaptive steel anchor beam that can be applied to different construction scenarios and circulated and reused in different bridge projects, thereby improving utilization and reducing costs.

[0004] The technical solution of the present invention is as follows:

[0005] In one aspect, the present invention provides an angle-adaptive steel anchor beam, comprising: a cross beam, two sets of supports, an anchor pad slider;

[0006] Notches are provided at both ends of the top plate of the crossbeam for the steel strands to pass through;

[0007] The supports are respectively fixed to the two ends of the top plate of the cross beam, and an arc-shaped support panel is fixed on the supports; a hole is opened in the middle of the arc-shaped support panel for the steel strand to pass through; baffles are arranged at the edges of both sides of the arc-shaped support panel;

[0008] The anchor pad slider is composed of a fixed plate, an arc plate, and a connecting part. One end of the connecting part is fixedly installed with the fixed plate, and the other end is connected to the inner wall of the arc plate. The arc plate is placed on the arc support surface, and the outer surface of the arc plate matches the arc support surface. The fixed plate is provided with a circular hole, and one end of the steel strand is passed through the circular hole and clamped by a steel strand clamp.

[0009] The crossbeam comprises a bottom plate and a top plate, and the bottom plate and the top plate are connected by a first connecting plate; and a plurality of groups of first reinforcing plates are welded to the side surface of the crossbeam.

[0010] The connecting portion of the anchor pad slider is composed of a plurality of second connecting plates and a second reinforcing plate.

[0011] The arc-shaped supporting panel is welded to the top plate of the crossbeam through a third connecting plate, and the support is provided with a plurality of groups of third reinforcing plates.

[0012] The two side surfaces of the arc-shaped plate are close to the corresponding baffles, that is, the width of the arc-shaped plate is slightly smaller than the distance between the two baffles.

[0013] All panels are made of Q355B steel plates and connected by welding.

[0014] Another aspect of the present invention provides a construction method of an angle-adaptive steel anchor beam, comprising:

[0015] S1. Establish a calculation model to perform stress analysis and determine material parameters, and then transport the steel anchor beam to the site after finishing processing in the factory;

[0016] S2. Install the steel anchor beam on the buckle tower and weld it firmly;

[0017] S3. Install the steel strands and adjust the angle of the steel anchor beam anchor pad slider according to the actual situation on site and the angle of the steel strands. After the construction is completed, the steel anchor beam can be disassembled for turnover.

[0018] In step S3, one end of the steel strand used for pulling the steel arch frame is connected to the steel arch frame, and the other end passes through the circular hole of the anchor pad slider located in the direction of the steel arch frame and is clamped by a steel strand clamp; one end of the steel strand used for connecting the ground anchor is connected to the ground anchor, and the other end passes through the circular hole of the anchor pad slider located in the direction of the anchor and is clamped by a steel strand clamp.

[0019] Technical effects and advantages of the present invention:

[0020] The use of curved panels plus anchor pad sliders can achieve an adjustable angle effect, so that a steel anchor beam can be used in different construction scenarios and can be adaptively adjusted to various required angles, thereby achieving the effect of improving utilization and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the beam and support structure;

[0023] Figure 3 for Figure 2 AA schematic diagram;

[0024] Figure 4 for Figure 2 BB schematic diagram;

[0025] Figure 5 for Figure 2 Schematic diagram of CC;

[0026] Figure 6 It is a schematic diagram of the top plate N1;

[0027] Figure 7 It is a schematic diagram of the bottom plate N2;

[0028] Figure 8 for Figure 2 Stereogram;

[0029] Fig. 9 It is the structural diagram of the anchor pad slider;

[0030] Fig.10 for Fig. 9 EE schematic diagram;

[0031] Fig.11 for Fig. 9 FF schematic diagram;

[0032] Fig.12 is a schematic diagram of the second connecting plate N11-2;

[0033] Fig.13 It is a schematic diagram of the second connecting plate N11-6;

[0034] Fig.14 This is a construction diagram;

[0035] Fig.15 Schematic diagram of the connection between steel strand and steel anchor beam. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1

[0038] like Figures 1 to 13 An angle-adaptive steel anchor beam is shown, comprising: a cross beam 1, two sets of supports 2, and an anchor pad slider 3;

[0039] The top plate N1 of the cross beam 1 is provided with notches a at both ends for the stranded wire to pass through;

[0040] The support 2 is respectively fixed to the two ends of the top plate N1 of the crossbeam, and an arc-shaped support panel N8 is fixed on the support; a hole b is opened in the middle of the arc-shaped support panel N8 for the steel strand to pass through; and blocking bars N9 are arranged at the edges of both sides of the arc-shaped support panel N8 to facilitate the positioning of the anchor pad slider;

[0041] The anchor pad slider 3 is composed of a fixed plate N11-1, an arc plate N11-5, and a connecting part. One end of the connecting part is fixedly installed with the fixed plate, and the other end is connected to the inner wall of the arc plate. The arc plate is placed on the arc support surface, and the outer surface of the arc plate matches the arc support surface. The fixed plate is provided with a circular hole c for the steel strand to pass through.

[0042] Furthermore, the crossbeam 1 includes a bottom plate N2 and a top plate N1, and the bottom plate and the top plate are connected by two first connecting plates N3; and a plurality of first reinforcing plates N10 are welded to the side surface of the crossbeam.

[0043] Furthermore, the arc-shaped supporting panel N8 is welded to the top plate N1 of the cross beam through a third connecting plate N4, and the support 2 is welded with a third reinforcing plate (N5, N6, N7).

[0044] Furthermore, the connection portion of the anchor pad slider 3 is composed of a plurality of second connection plates (N11-2, N11-6) and a second reinforcement plate (N11-3, N11-4).

[0045] Furthermore, all panels are made of Q355B steel plates and connected by welding.

[0046] Embodiment 2

[0047] like Fig.14 , Fig.15 A construction method of an angle-adaptive steel anchor beam is shown, comprising:

[0048] S1. Establish a calculation model to perform stress analysis and determine material parameters, and then transport the steel anchor beam to the site after finishing processing in the factory;

[0049] S2. The steel anchor beam N is installed on the buckle tower 4 and welded firmly;

[0050] S3. Install the steel strand 5 and adjust the angle of the steel anchor beam anchor pad slider according to the actual situation on site and the angle of the steel strand. After the construction is completed, the steel anchor beam can be disassembled for turnover.

[0051] In step S3, one end of the steel strand used for pulling the steel arch frame is connected to the steel arch frame 6, and the other end passes through the circular hole of the anchor pad slider located in the direction of the steel arch frame and is clamped by a steel strand clamp; one end of the steel strand used for connecting the ground anchor 7 is connected to the ground anchor, and the other end passes through the circular hole of the anchor pad slider located in the direction of the anchor and is clamped by a steel strand clamp 8.

[0052] In S3, the angle of the steel strand is related to the tower height, the linearity of the arch bridge, and the surrounding construction environment.

[0053] Fig.14 What is shown is the schematic diagram of the construction of half a steel arch.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An angle-adaptive steel anchor beam, characterized in that: include: Crossbeam, two sets of supports, anchor pads and sliders; Notches are provided at both ends of the top plate of the crossbeam; The supports are respectively fixed to the two ends of the top plate of the crossbeam, and an arc-shaped support panel is fixed on the supports; a hole is opened in the middle of the arc-shaped support panel; and baffles are arranged at the edges of both sides of the arc-shaped support panel; The anchor pad slider is composed of a fixed plate, an arc-shaped plate, and a connecting part. One end of the connecting part is fixedly installed with the fixed plate, and the other end is connected to the inner wall of the arc-shaped plate. The arc-shaped plate is placed on the arc-shaped supporting surface, and the outer surface of the arc-shaped plate matches the arc-shaped supporting surface. The fixed plate is provided with a circular hole.

2. The angle-adaptive steel anchor beam according to claim 1, characterized in that: The crossbeam comprises a bottom plate and a top plate, and the bottom plate and the top plate are connected by a first connecting plate; and a plurality of groups of first reinforcing plates are welded to the side surface of the crossbeam.

3. The angle-adaptive steel anchor beam according to claim 1, characterized in that: The connecting portion of the anchor pad slider is composed of a plurality of second connecting plates and a second reinforcing plate.

4. The angle-adaptive steel anchor beam according to claim 1, characterized in that: The arc-shaped supporting panel is welded to the top plate of the crossbeam through a third connecting plate, and the support is provided with a plurality of groups of third reinforcing plates.

5. The angle-adaptive steel anchor beam according to claim 1, characterized in that: The two side surfaces of the arc-shaped plate are close to the corresponding blocking bars.

6. The angle-adaptive steel anchor beam according to claim 1, characterized in that: All panels are made of Q355B steel plates and connected by welding.

7. A method for constructing an angle-adaptive steel anchor beam according to any one of claims 1 to 6, characterized in that: include: S1. Establish a calculation model to perform stress analysis and determine material parameters, and then transport the steel anchor beam to the site after finishing processing in the factory; S2. Install the steel anchor beam on the buckle tower and weld it firmly; S3. Install the steel strands and adjust the angle of the steel anchor beam anchor pad slider according to the actual situation on site and the angle of the steel strands. After the construction is completed, the steel anchor beam can be disassembled for turnover.

8. The construction method of an angle-adaptive steel anchor beam according to claim 7, characterized in that: In step S3, one end of the steel strand used for pulling the steel arch frame is connected to the steel arch frame, and the other end passes through the circular hole of the anchor pad slider located in the direction of the steel arch frame and is clamped by a steel strand clamp; one end of the steel strand used for connecting the ground anchor is connected to the ground anchor, and the other end passes through the circular hole of the anchor pad slider located in the direction of the anchor and is clamped by a steel strand clamp.

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