Standardized detachable steel guide beam

Abstract

The utility model discloses a standardized detachable steel guide beam, relates to the technical field of steel bridge incremental launching construction, and aims at solving the problems that in the prior art, a traditional steel guide beam cannot be detached and recycled, the welding amount is large, and deformation of the steel guide beam is increased. Main beam fixing plates are arranged at the butt joint ends of the middle H-shaped steel main beam, the right H-shaped steel main beam and the left H-shaped steel main beam, splicing connecting mechanisms are arranged on the main beam fixing plates, the middle H-shaped steel main beam, the right H-shaped steel main beam and the left H-shaped steel main beam are connected with one another through the splicing connecting mechanisms, and reinforcing plates are detachably connected to webs of the middle H-shaped steel main beam and the right H-shaped steel main beam. According to the steel guide beam, the structure is simple, operation is easy, the workshop manufacturing progress of the steel guide beam and the site construction progress of the steel guide beam are accelerated, the steel guide beam can be detached and reused, cost is greatly saved, and the steel guide beam has the advantages of being simple in structure, convenient to use and high in practicability. The specification of the angle steel can be changed according to different pushing load working conditions to meet the strength requirement of the main beam.

Description

Technical Field

[0001] The utility model relates to the technical field of jacking construction of steel bridges, in particular to a standardized detachable steel guide beam. Background Technique

[0002] In recent years, the expressways, railways and bridges in China have developed rapidly. A large number of steel structure bridges are adopted in the construction. Most of the steel structure bridges span expressways, railways, mountains, rivers, etc. The traditional in-situ hoisting method cannot be used for construction, and the jacking construction is mostly adopted. The jacking construction needs to use a jacking steel guide beam. The traditional steel guide beam cannot be disassembled and recycled. The height of the steel guide beam is designed according to the actual height of the steel box girder. The main beam butt joint adopts welded connection, and the web is strengthened by welding vertical stiffening plates. The fabrication of the steel guide beam in the workshop and the on-site assembly welding amount are extremely large. The large welding amount increases the deformation of the steel guide beam and affects the processing quality of the steel guide beam. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a standardized detachable steel guide beam, which can effectively solve the problems in the background technique.

[0004] In order to achieve the above purpose, the utility model discloses a standardized detachable steel guide beam. The technical scheme adopted is that it includes a middle H-shaped steel main beam, a right H-shaped steel main beam and a left H-shaped steel main beam. The butt joint ends of the middle H-shaped steel main beam and the right H-shaped steel main beam and the left H-shaped steel main beam are provided with main beam fixing plates, and the main beam fixing plates are provided with assembling connection mechanisms. The middle H-shaped steel main beam, the right H-shaped steel main beam and the left H-shaped steel main beam are connected to each other through the assembling connection mechanisms. The webs of the middle H-shaped steel main beam and the right H-shaped steel main beam are detachably connected with stiffening plates. The middle H-shaped steel main beam, the right H-shaped steel main beam and the left H-shaped steel main beam are divided into two groups and fixed by connecting beams.

[0005] As a preferred technical scheme of the utility model, the assembling connection mechanism includes an outer connecting plate, an inner connecting plate and a side connecting plate. Through holes are opened on the outer connecting plate, the inner connecting plate and the side connecting plate. Through holes are opened on the main beam fixing plates and the webs at the corresponding positions of the middle H-shaped steel main beam, the right H-shaped steel main beam and the left H-shaped steel main beam and the outer connecting plate, the inner connecting plate and the side connecting plate, and are fixed by bolts, so that the middle H-shaped steel main beam and the right H-shaped steel main beam, the left H-shaped steel main beam are connected into a whole and can be disassembled for recycling.

[0006] As a preferred technical solution of the present utility model, there are multiple reinforcing plates on the webs of the middle H-shaped steel main beam and the right H-shaped steel main beam. Through holes are formed at the relative positions of the reinforcing plates and the webs of the middle H-shaped steel main beam and the right H-shaped steel main beam, and they are fixed by bolts. Different numbers of the reinforcing plates can be installed according to different occasions and operating conditions, and the specifications of the reinforcing plates can also be changed according to different jacking load conditions to meet the strength requirements of the main beam, with wider adaptability.

[0007] As a preferred technical solution of the present utility model, beam fixing plates are provided on the webs of the middle H-shaped steel main beam and the right H-shaped steel main beam on both sides of the connecting beam. Through holes are formed at the two ends of the beam fixing plates and the connecting beam, and they are connected to each other by bolts, which is convenient for disassembly and recycling.

[0008] Compared with the prior art, the beneficial effects of the present utility model are as follows: the present utility model has a simple structure and is easy to operate, which speeds up the workshop production progress and on-site construction progress of the steel guide beam. The detachable and reusable steel guide beam greatly saves costs, and the specifications of the angle steel can be changed according to different jacking load conditions to meet the strength requirements of the main beam. Description of the Drawings

[0009] Figure 1 It is a schematic structural diagram of the present utility model;

[0010] Figure 2 It is an enlarged view of part A of the present utility model;

[0011] Figure 3 It is an enlarged view of part B of the present utility model;

[0012] Figure 4 It is an enlarged view of part C of the present utility model.

[0013] In the figure: 1. Middle H-shaped steel main beam; 2. Right H-shaped steel main beam; 3. Left H-shaped steel main beam; 4. Connecting beam; 5. Reinforcing plate; 6. Main beam fixing plate; 7. Outer connecting plate; 8. Inner connecting plate; 9. Side connecting plate; 10. Beam fixing plate; 11. Assembly connection mechanism. Detailed Embodiments

[0014] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0015] As Figures 1 to 4As shown in the figure, the utility model discloses a standardized detachable steel guide beam. The technical solution adopted is as follows: it includes a middle H-shaped steel main beam 1, a right H-shaped steel main beam 2, and a left H-shaped steel main beam 3. Main beam fixing plates 6 are provided on the flange plates at the connecting ends of the middle H-shaped steel main beam 1, the right H-shaped steel main beam 2, and the left H-shaped steel main beam 3. The middle H-shaped steel main beam 1, the right H-shaped steel main beam 2, and the left H-shaped steel main beam 3 are connected into a whole through an assembly connection mechanism 11. The other end of the left H-shaped steel main beam 3 is connected to the bridge main beam. The assembly connection mechanism 11 includes an outer connecting plate 7, an inner connecting plate 8, and a side connecting plate 9. Through holes are opened on the outer connecting plate 7, the inner connecting plate 8, and the side connecting plate 9. The outer connecting plate 7 is located outside the main beam fixing plate 6. The inner connecting plate 8 is located inside the main beam fixing plate 6. The side connecting plate 9 is located on both sides of the web. Through holes are opened at the relative positions of the main beam fixing plate 6 and the web, and they are fixed obliquely by bolts as Figure 3 shown in the figure. A plurality of reinforcing plates 5 are detachably connected to the webs of the middle H-shaped steel main beam 1 and the right H-shaped steel main beam 2. The reinforcing plates 5 are fixed by pre-drilling holes on the webs of the middle H-shaped steel main beam 1 and the right H-shaped steel main beam 2 and the reinforcing plates 5 and fastening them with bolts. Beam fixing plates 10 are welded on the middle webs of the middle H-shaped steel main beam 1 and the right H-shaped steel main beam 2. There is a connecting beam 4 on the beam fixing plates 10. Through holes are opened at the relative positions of the coincident surfaces of the beam fixing plates 10 and the connecting beam 4. The beam fixing plates 10 and the connecting beam 4 are fixed by bolts.

[0016] The working principle of the utility model: When installing the steel guide beam, first transport the middle H-shaped steel main beam 1, the right H-shaped steel main beam 2, and the left H-shaped steel main beam 3 to the construction site. First, connect the left H-shaped steel main beam 3 to the bridge main beam. Connect the other end of the left H-shaped steel main beam 3 to the middle H-shaped steel main beam 1 through the assembly connection mechanism 11. Connect the other end of the middle H-shaped steel main beam 1 to the right H-shaped steel main beam 2 through the assembly connection mechanism 11. Connect the two groups of spliced guide beams through the connecting beam 4. Fix the reinforcing plates 5 to the webs of the middle H-shaped steel main beam 1 and the right H-shaped steel main beam 2 with bolts, and the installation is completed. When it needs to be disassembled, just reverse this step.

[0017] The mechanical connections involved in the utility model are common means adopted by those skilled in the art and can obtain technical inspiration through a limited number of tests, belonging to common general knowledge.

[0018] The components not detailed in this article are prior art.

[0019] Although the embodiments of the utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A standardized detachable steel guide beam, comprising a middle H-shaped steel main beam (1), a right H-shaped steel main beam (2) and a left H-shaped steel main beam (3), characterized in that: A main beam fixing plate (6) is provided at the butt end of the middle H-shaped steel main beam (1) and the right H-shaped steel main beam (2) and the left H-shaped steel main beam (3); an assembling connection mechanism (11) is provided on the main beam fixing plate (6); the middle H-shaped steel main beam (1), the right H-shaped steel main beam (2) and the left H-shaped steel main beam (3) are connected to each other via the assembling connection mechanism (11); a detachable connecting reinforcement plate (5) is provided on the web of the middle H-shaped steel main beam (1) and the right H-shaped steel main beam (2); the middle H-shaped steel main beam (1), the right H-shaped steel main beam (2) and the left H-shaped steel main beam (3) are two groups and are fixed to each other via a connecting beam (4).

2. A standardized detachable steel guide beam according to claim 1, characterized in that: The assembly connection mechanism (11) comprises an outer connection plate (7), an inner connection plate (8) and a side connection plate (9), wherein the outer connection plate (7), the inner connection plate (8) and the side connection plate (9) are provided with through holes, and the middle H-shaped steel main beam (1), the right H-shaped steel main beam (2) and the left H-shaped steel main beam (3) are provided with through holes on the main beam fixing plate (6) and the web at positions corresponding to the outer connection plate (7), the inner connection plate (8) and the side connection plate (9), and are fixed by bolts.

3. A standardized detachable steel guide beam according to claim 1, characterized in that: A plurality of reinforcing plates (5) are provided on the webs of the middle H-shaped steel main beam (1) and the right H-shaped steel main beam (2); through holes are provided at relative positions between the reinforcing plates (5) and the webs of the middle H-shaped steel main beam (1) and the right H-shaped steel main beam (2), and are fixed by bolts.

4. A standardized detachable steel guide beam according to claim 1, characterized in that: Beam fixing plates (10) are provided on the webs of the middle H-shaped steel main beam (1) and the right H-shaped steel main beam (2) on both sides of the connecting beam (4), and through holes are provided at both ends of the beam fixing plates (10) and the connecting beam (4), and the two ends are connected to each other by bolts.

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