Temporary support structure for steel girder erection

Abstract

The utility model discloses a kind of steel girder installation temporary support structure, including the support padstone being set to pier top, the both sides top of support padstone is connected with concrete support by first anchoring connecting piece, the top of concrete support is connected with the steel support assembly for temporarily supporting steel beam by second anchoring connecting piece, the top of steel support assembly is provided with fixing piece for fixing steel beam, the utility model is set through steel support assembly, can effectively disperse the load transmitted by steel beam, it is evenly conducted to pier, and can bear the weight of steel girder and various load in construction process, ensure the structural stability in construction process, effectively prevent the safety accident caused by structural instability, and knock first support plate to one side, push out first support plate from between two groups of cover plate, so that the support pad of steel beam falls on permanent support seat, that is, the disassembly of steel support can be completed, very convenient and fast.

Description

Technical Field

[0001] This utility model relates to the technical field of temporary support structure for steel main beam installation, specifically a temporary support structure for steel main beam installation. Background Technology

[0002] During the installation of the main steel beam of the bridge, the temporary support structure played a crucial role. The temporary support was designed and used to support the weight of the main steel beam and ensure stability and safety during construction.

[0003] Most existing temporary supports are sulfur mortar temporary supports. Sulfur mortar temporary supports utilize the characteristics of sulfur mortar, which has good strength and load-bearing capacity at room temperature, and can quickly soften and melt when heated, and is quick and easy to remove. When making temporary supports, resistance wires are pre-poured into the sulfur mortar layer. When removing temporary supports and converting the system, it is only necessary to connect the current to heat the sulfur mortar temporary supports, so that the sulfur mortar softens and melts completely within a few minutes. After the steel bars in the temporary supports are cut off, the continuous beam body sits on the permanent supports.

[0004] The aforementioned sulfur mortar temporary supports have some problems in use. The dismantling process is dangerous and easily pollutes the environment. Since sulfur is required, the removal of the temporary supports will inevitably require combustion, which poses certain dangers and environmental pollution. Utility Model Content

[0005] The purpose of this utility model is to provide a temporary support structure for steel main beam installation, in order to solve the problems mentioned in the background art, such as the danger and environmental pollution during the dismantling process, and the need to burn sulfur during the removal of the temporary support, which poses certain dangers and environmental pollution.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A temporary support structure for installing a steel main beam includes a support pad stone set on the top of the pier. The top of both sides of the support pad stone is connected to a concrete support through a first anchoring connector. The top of the concrete support is connected to a steel support assembly for temporarily supporting the steel beam through a second anchoring connector. The top of the steel support assembly is provided with a fixing member for fixing the steel beam.

[0008] As a preferred technical solution, the first anchoring connector includes four sets of first threaded steel bars respectively fixedly connected to the top of both sides of the bearing pad stone. The top of each of the first threaded steel bars is threadedly connected to a first connecting sleeve, and the top of the first connecting sleeve is threadedly connected to a second threaded steel bar. The second threaded steel bar extends into the interior of the corresponding side concrete bearing.

[0009] As a preferred technical solution, the steel support assembly includes a cover plate disposed on the top of each set of concrete supports and arranged symmetrically in the upper and lower parts. Four sets of mounting holes are opened in the middle of the two sets of cover plates. The four sets of mounting holes are arranged in a rectangular shape. A set of first support plates is snapped between the two sets of cover plates. Second support plates are connected to both sides of the ends and both sides of the middle of the first support plates. The upper and lower ends of several sets of second support plates respectively contact the surface of the corresponding side cover plates.

[0010] As a preferred technical solution, the second anchoring connector includes a first pad disposed on the surface of the cover plate located below and corresponding to each set of mounting holes. The ends of the four sets of second threaded steel bars pass through the corresponding mounting holes and the first pad in sequence. The ends of the four sets of second threaded steel bars are threadedly connected to a second connecting sleeve. The four sets of second connecting sleeves are respectively pressed against the surface of the first pad at the corresponding position.

[0011] As a preferred technical solution, the fastener includes anchor rods threaded to the top of four sets of second connecting sleeves. The four sets of anchor rods pass through the cover plate and the steel beam sequentially. The ends of the four sets of anchor rods are threaded with anchor nuts. The four sets of anchor nuts are respectively pressed against the corresponding surface of the steel beam.

[0012] As a preferred technical solution, a pad layer is provided between the steel support assembly and the concrete support.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the setting of the steel support assembly, can effectively disperse the load transmitted by the steel beam and evenly transfer it to the pier. It can also bear the weight of the main steel beam and various loads during construction, ensuring structural stability during construction and effectively preventing safety accidents caused by structural instability. Furthermore, by striking the first support plate to one side, the first support plate is pushed out between the two sets of cover plates, so that the support pad of the steel beam falls on the permanent support seat, which can complete the disassembly of the steel support. It is very convenient and quick, and the steel support assembly can be recycled and reused. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a temporary support structure for installing a steel main beam according to the present invention;

[0016] Figure 2 This is a schematic diagram of the steel support structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the second support plate of this utility model;

[0018] Figure 4This is a schematic diagram of the structure of the first support plate of this utility model;

[0019] Figure 5 This is a schematic diagram showing the location of the mounting holes in this utility model;

[0020] Figure 6 This is a schematic diagram of the steel support of this utility model from another perspective.

[0021] In the picture:

[0022] 100. Bearing pad; 101. Concrete bearing; 102. Steel beam; 103. First threaded steel bar; 104. First connecting sleeve; 105. Second threaded steel bar; 106. First pad plate; 107. Second connecting sleeve; 108. Anchor nut; 109. Anchor bolt; 110. Pad layer;

[0023] 200. Steel support; 201. Cover plate; 202. Second support plate; 203. Mounting hole; 204. First support plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 This embodiment provides a temporary support structure for installing a steel main beam, including a support pad 100 set on the top of the pier. Both sides of the top of the support pad 100 are connected to concrete supports 101 through a first anchoring connector. The top of the concrete supports 101 is connected to a steel support 200 assembly for temporarily supporting the steel beam 102 through a second anchoring connector. The top of the steel support 200 assembly is provided with a fixing member for fixing the steel beam 102.

[0026] The steel bearing 200 assembly includes a cover plate 201 symmetrically arranged on top of each set of concrete bearings 101. Four sets of mounting holes 203 are formed in the middle of the two sets of cover plates 201, arranged in a rectangular shape. A first support plate 204 is snap-fitted between the two sets of cover plates 201. Second support plates 202 are connected to both ends and both sides of the middle of the first support plate 204. The upper and lower ends of several sets of second support plates 202 respectively contact the surface of the corresponding side cover plate 201. Through the arrangement of the steel bearing 200 assembly, it is possible to... The load transmitted by the steel beam 102 is effectively distributed and evenly transferred to the pier. It can also bear the weight of the main steel beam and various loads during construction, ensuring structural stability during construction and effectively preventing safety accidents caused by structural instability. Furthermore, by striking the first support plate 204 to one side, the first support plate 204 is pushed out between the two sets of cover plates 201, so that the support pad of the steel beam 102 falls on the permanent support seat, thus completing the disassembly of the steel support 200. This is very convenient and quick, and the steel support 200 components can be recycled and reused.

[0027] The first anchoring connector includes four sets of first threaded steel bars 103 that are fixedly connected to the top of both sides of the support pad 100. The top of each first threaded steel bar 103 is threaded with a first connecting sleeve 104, and the top of the first connecting sleeve 104 is threaded with a second threaded steel bar 105. The second threaded steel bar 105 extends into the interior of the corresponding side concrete support 101. Through the setting of the first anchoring connector, the high strength and reliability can ensure that the connection between the two is stable, avoid loosening during long-term use, and enhance the durability of the structure.

[0028] The second anchoring connector includes a first pad 106 disposed on the surface of the cover plate 201 located below and corresponding to each set of mounting holes 203. The ends of four sets of second threaded steel bars 105 pass through the corresponding mounting holes 203 and the first pad 106 sequentially upwards. The ends of the four sets of second threaded steel bars 105 are all threadedly connected to a second connecting sleeve 107. The four sets of second connecting sleeves 107 are respectively pressed against the surface of the first pad 106 at the corresponding positions. Through the setting of the second anchoring connector, the connection strength between the steel support 200 assembly and the concrete support 101 is further strengthened. The pad can disperse the bolt pressure, prevent local pressure damage to the concrete, ensure the reliability of the structural connection, and ensure the safety of the bridge structure under complex stress.

[0029] The fasteners include anchor rods 109 threaded to the top of four sets of second connecting sleeves 107. The four sets of anchor rods 109 pass through the cover plate 201 and the steel beam 102 sequentially. The ends of the four sets of anchor rods 109 are threaded with anchor nuts 108. The four sets of anchor nuts 108 are pressed against the corresponding surfaces of the steel beam 102. The fasteners effectively constrain the displacement of the steel beam 102, enabling the steel beam 102 to work in coordination with the supporting structure below, ensuring the overall stability of the bridge structure, and guaranteeing the stability and safety of the steel beam 102 during use.

[0030] A pad 110 is provided between the steel support 200 assembly and the concrete support 101. By providing the pad 110, the pressure between the steel support 200 and the concrete support 101 can be buffered, reducing local stress concentration caused by load transfer and preventing damage to the steel support 200 and the concrete support 101. At the same time, the pad 110 can also adjust the relative position and level of the two to a certain extent, making the load transfer more uniform and stable, and improving the stability and reliability of the entire structure.

[0031] Among them, the subbase 110 is composed of one or more of the following: micro-expansion cement, rubber pads, steel plates, etc.

[0032] Working principle;

[0033] The steel beam 102 bears its own weight and additional loads. With the help of fasteners, the steel support 200 assembly is tightly connected to the anchor rod 109 and anchor bolts, transferring the load to the steel support 200. Inside the steel support 200 assembly, the upper cover plate 201 bears the load, which is then evenly distributed to the lower cover plate 201 via the first support plate 204 and the second support plate 202, and then to the concrete support 101. The concrete support 101, relying on the first anchoring connector, uses the second threaded steel bar 105 that extends deep inside, and through the first connecting sleeve 104 and the first threaded steel bar 103, transfers the load to the support pad 100, evenly distributing the load to the top of the pier, and finally from the pier to the foundation, ensuring structural stability.

[0034] When it is necessary to dismantle the steel support 200, first use the appropriate wrench or other tools to unscrew the anchor bolts from the anchor rod 109 to separate the steel beam 102 from the anchor rod 109. Then unscrew the anchor rod 109 from the second connecting sleeve 107 to disconnect the steel beam 102 from the steel support 200 assembly and remove the anchor rod 109.

[0035] At this point, the first support plate 204 is knocked to one side to push it out between the two sets of cover plates 201, so that the support pad of the steel beam 102 falls on the permanent support seat, and the disassembly of the steel support 200 can be completed.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temporary support structure for installing a steel main beam, characterized in that, The bridge includes a bearing pad (100) installed on the top of the pier. Both sides of the bearing pad (100) are connected to concrete bearings (101) through a first anchoring connector. The top of the concrete bearings (101) is connected to a steel bearing (200) assembly for temporary support of the steel beam (102) through a second anchoring connector. The top of the steel bearing (200) assembly is provided with a fixing member for fixing the steel beam (102). The first anchoring connector includes four sets of first threaded steel bars (103) fixedly connected to the top of both sides of the bearing pad (100). Each first threaded steel bar (103) has a first connecting sleeve (104) threaded to its top, and a second threaded steel bar (105) threaded to its top. The second threaded steel bar (105) extends into the interior of the corresponding side concrete bearing (101). The steel bearing (200) assembly includes components disposed in each set of concrete bearings (101). The top of the cover plate (201) is symmetrically arranged vertically. Four sets of mounting holes (203) are provided in the middle of the two sets of cover plates (201). The four sets of mounting holes (203) are rectangular. A first support plate (204) is snapped between the two sets of cover plates (201). Second support plates (202) are connected to both sides of the ends and both sides of the middle of the first support plate (204). The upper and lower ends of several sets of second support plates (202) respectively contact the surface of the corresponding side cover plate (201).

2. The temporary support structure for installing a steel main beam according to claim 1, characterized in that: The second anchoring connector includes a first pad (106) disposed on the surface of the cover plate (201) located below and corresponding to each set of mounting holes (203). The ends of the four sets of second threaded steel bars (105) pass through the corresponding mounting holes (203) and the first pad (106) in sequence. The ends of the four sets of second threaded steel bars (105) are all threadedly connected to a second connecting sleeve (107). The four sets of second connecting sleeves (107) are respectively pressed against the surface of the first pad (106) at the corresponding position.

3. The temporary support structure for installing a steel main beam according to claim 2, characterized in that: The fasteners include anchor rods (109) threaded to the top of four sets of second connecting sleeves (107). The four sets of anchor rods (109) pass through the cover plate (201) and the steel beam (102) in sequence. The ends of the four sets of anchor rods (109) are threaded with anchor nuts (108). The four sets of anchor nuts (108) are respectively pressed onto the corresponding surface of the steel beam (102).

4. The temporary support structure for installing a steel main beam according to claim 1, characterized in that: A pad (110) is provided between the steel support (200) assembly and the concrete support (101).

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