Overhanging supporting system above ramp opening and supporting method of overhanging supporting system

Abstract

The invention discloses an overhanging supporting system above a ramp opening and a supporting method of the overhanging supporting system. The supporting system comprises two edge beams arranged in the horizontal direction, and the two edge beams are connected to the tops of wall bodies on the two sides of a ramp correspondingly; the multiple main beams are arranged at intervals in the length direction of the edge beams, each main beam is perpendicular to the edge beams, and the two ends of each main beam are connected to the two edge beams correspondingly; the multiple secondary beams are connected between the adjacent main beams at intervals, and the multiple secondary beams and the multiple main beams are connected to form a latticed frame; the plurality of roadbed boxes are fully paved on the top of the latticed frame, and the top surfaces of the plurality of roadbed boxes are flush and form a supporting surface; and the supporting columns are used for temporarily supporting the cantilever structure, the bottoms of the supporting columns are supported to the supporting face, and the construction efficiency is improved by arranging the supporting system.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a cantilever support system above a ramp entrance and a support method thereof. Background Art

[0002] With the acceleration of urbanization, it is necessary to construct car ramps during underground space construction, and to construct a cantilever structure above the car ramp as a canopy. In traditional construction practices, when the cantilever structure has not been maintained, it is necessary to support a full-frame on the ramp and return it to the bottom of the cantilever structure to provide support for the cantilever structure until the cantilever structure reaches the designed strength. In this practice, the full-frame needs to be supported on the ramp, the frame is easy to shake, difficult to support and has poor stability, and the ramp will directly bear the gravity load of the canopy, which is easy to damage the ramp. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a cantilever support system and a support method above the ramp entrance, and to support the support columns by supporting a grid-like frame and a roadbed box on the top of the walls on both sides of the ramp, thereby changing the force transmission path, avoiding the ramp from being subjected to force, improving construction efficiency, and protecting the ramp at the same time.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is a cantilever support system above the ramp entrance, including:

[0005] Two side beams arranged in the horizontal direction, the two side beams are respectively connected to the tops of the walls on both sides of the ramp;

[0006] A plurality of main beams, wherein the plurality of main beams are arranged at intervals along the length direction of the side beams, each of the main beams is arranged perpendicular to the side beams, and both ends of the main beams are respectively connected to the two side beams;

[0007] A plurality of secondary beams, wherein adjacent main beams are connected with a plurality of secondary beams at intervals, and the plurality of secondary beams are connected with the plurality of main beams to form a grid-like frame;

[0008] A plurality of roadbed boxes, wherein the plurality of roadbed boxes are fully laid on the top of the grid-shaped frame, and the top surfaces of the plurality of roadbed boxes are flush and form a supporting surface;

[0009] A plurality of support columns are used for temporarily supporting the cantilever structure, and the bottoms of the support columns are supported to the support surface.

[0010] A further improvement of the cantilever support system above the ramp entrance of the present invention is that the main beam is detachably connected to the two side beams, anchor plates are pre-embedded on opposite sides of the side beams, and the main beam and the anchor plates are connected by connecting pieces.

[0011] A further improvement of the cantilever support system above the ramp of the present invention lies in that the connecting member is a first angle steel, and the two flange plates of the first angle steel are respectively abutted against the main beam and the anchor plate, and the two flange plates of the first angle steel are bolted to the main beam and the anchor plate respectively.

[0012] A further improvement of the cantilever support system above the ramp of the present invention lies in that a plurality of anchor bars are connected at intervals on one side of the anchor plate, and the plurality of anchor bars are anchored in the side beam. In the anchored state of the plurality of anchor bars, the anchor plate abuts against the side beam.

[0013] A further improvement of the cantilever support system above the ramp of the present invention lies in that the main beam and the secondary beam are detachably connected.

[0014] A support method for the cantilever support system above the ramp as described above includes the steps of:

[0015] Step 1: Construct side beams at the tops of the walls on both sides of the ramp respectively.

[0016] Step 2: Connect a plurality of main beams at intervals between the two side beams, and make each main beam perpendicular to the side beam.

[0017] Step 3: Connect a plurality of secondary beams at intervals between every two adjacent main beams, and make the plurality of main beams and the plurality of secondary beams form a grid-like framework.

[0018] Step 4: Fully pave roadbed boxes on the top of the grid-like framework.

[0019] Step 5: Support a plurality of support columns at intervals on the tops of the plurality of roadbed boxes, and make each support column support at the bottom of the cantilever structure.

[0020] Step 6: After the cantilever structure reaches the designed strength, remove the support columns, the roadbed boxes, the secondary beams and the main beams in sequence.

[0021] Compared with the prior art, the advantages of the present invention are as follows:

[0022] A grid-like framework and roadbed boxes are supported on the tops of the walls on both sides of the ramp for the support columns to be supported, avoiding the ramp from bearing force, improving the construction efficiency, and protecting the ramp at the same time. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 This is a top-down perspective view of the cantilever support system above the ramp entrance of the present invention.

[0025] Figure 2 This is a front structural view of the cantilever support system above the ramp entrance of the present invention.

[0026] Figure 3 This is a schematic diagram of the anchor plate connection of the cantilever support system above the ramp entrance of the present invention.

[0027] In the figure: 1, side beam; 2, main beam; 3, secondary beam; 4, roadbed box; 5, anchor plate; 6, first angle steel; 7, support column; 8, anchor bar. Specific embodiments

[0028] The following uses specific specific examples to illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0029] The following further elaborates on the cantilever support system above the ramp entrance of the present invention and its support method in conjunction with the accompanying drawings and specific embodiments.

[0030] Please refer to Figures 1 to 3 As shown, the cantilever support system above the ramp entrance includes:

[0031] Two side beams 1 arranged horizontally, and the two side beams 1 are respectively connected to the tops of the side walls on both sides of the ramp;

[0032] Multiple main beams 2, the multiple main beams 2 are arranged at intervals along the length direction of the side beam 1, and each main beam 2 is perpendicular to the side beam 1 and is respectively connected to the two side beams 1 at both ends;

[0033] Multiple secondary beams 3, multiple secondary beams 3 are connected at intervals between adjacent main beams 2, and the multiple secondary beams 3 and the multiple main beams 2 are connected to form a grid-shaped framework;

[0034] Multiple roadbed boxes 4, the multiple roadbed boxes 4 are fully paved on the top of the grid-shaped framework, and the top surfaces of the multiple roadbed boxes 4 are flush and form a support surface;

[0035] Multiple support columns 7 for temporarily supporting the cantilever structure, and the bottom of the support column 7 is supported on the support surface.

[0036] Through the above support system, the gravity load of the cantilever structure is first transmitted to the support column 7, then to the roadbed box 4, then to the grid-shaped frame, and finally to the walls on both sides of the ramp, avoiding the stress on the surface of the ramp and protecting the ramp.

[0037] By providing the side beam 1, direct connection between the main beam 2 and the wall is avoided, protecting the wall.

[0038] Specifically, both the main beam 2 and the secondary beam 3 are I-beams.

[0039] Preferably, the main beam 2 is detachably connected to the two side beams 1. Anchor plates 5 are embedded on the opposite sides of the side beam 1, and the main beam 2 and the anchor plates 5 are connected by connecting members.

[0040] By setting the connection between the main beam 2 and the side beam 1 to be detachable, it is convenient to install and remove the main beam 2, improving the construction efficiency.

[0041] Preferably, the connecting member is a first angle steel 6. The two flange plates of the first angle steel 6 respectively abut against the main beam 2 and the anchor plate 5, and the two flange plates of the first angle steel 6 and the main beam 2 and the anchor plate 5 are all connected by bolts.

[0042] By providing the first angle steel 6 to mechanically connect the main beam 2 and the anchor plate 5, direct welding is avoided, improving the installation and removal efficiency.

[0043] Specifically, a screw rod is connected to the side of the anchor plate 5 facing away from the side beam 1, and a nut is threadedly sleeved on the screw rod. A through hole for the screw rod to pass through is provided on the first flange plate of the first angle steel 6. In the connected state of the first angle steel 6 and the anchor plate 5, the first flange plate is clamped between the nut and the anchor plate 5.

[0044] Specifically, connection holes for the bolts to pass through are provided on both the second flange plate of the first angle steel 6 and the main beam 2.

[0045] Preferably, a plurality of anchor bars 8 are connected to one side of the anchor plate 5 at intervals, and the plurality of anchor bars 8 are anchored in the side beam 1. In the anchored state of the plurality of anchor bars 8, the anchor plate 5 abuts against the side beam 1.

[0046] By providing the plurality of anchor bars 8, the connection stability and shear resistance of the anchor plate 5 are improved.

[0047] Specifically, an anti-pulling member is further connected to the anchor bar 8.

[0048] By providing the anti-pulling member, the anchor bar 8 is prevented from being pulled out of the side beam 1, further improving the connection stability of the anchor plate 5.

[0049] Preferably, the main beam 2 is detachably connected to the secondary beam 3.

[0050] By arranging the main beam 2 and the secondary beam 3 to be detachably connected, it is convenient to install and disassemble the secondary beam 3, thereby improving the construction efficiency.

[0051] Specifically, the main beam 2 and the secondary beam 3 are connected by a second angle steel, and two flange plates of the second angle steel are respectively abutted against the main beam 2 and the secondary beam 3, and the two flange plates of the second angle steel are connected to the main beam 2 and the secondary beam 3 by bolts.

[0052] A method for supporting the cantilever support system above the ramp entrance as described above comprises the steps of:

[0053] Step 1: construct side beams 1 on the top of the walls on both sides of the ramp;

[0054] Step 2: Connect multiple main beams 2 between two side beams 1 at intervals, so that each main beam 2 is arranged perpendicular to the side beam 1;

[0055] Step 3: Connecting a plurality of secondary beams 3 between every two adjacent main beams 2, so that the plurality of main beams 2 and the plurality of secondary beams 3 are connected to form a grid-like frame;

[0056] Step 4: Pave the roadbed box 4 on the top of the grid-like frame;

[0057] Step 5: Multiple support columns 7 are arranged at intervals on the top of the multiple roadbed boxes 4, so that each of the support columns 7 is supported at the bottom of the cantilever structure;

[0058] Step 6: After the cantilever structure reaches the designed strength, the support column 7, the roadbed box 4, the secondary beam 3 and the main beam 2 are removed in sequence.

[0059] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0060] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the above-disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A cantilever support system above a ramp entrance, characterized in that Comprising: Two side beams arranged horizontally, the two side beams are respectively connected to the tops of the walls on both sides of the ramp; Multiple main beams, the multiple main beams are arranged at intervals along the length direction of the side beams, each main beam is arranged perpendicular to the side beams and the two ends are respectively connected to the two side beams; Multiple secondary beams, multiple secondary beams are connected at intervals between adjacent main beams, and the multiple secondary beams and the multiple main beams are connected to form a grid-like frame; Multiple roadbed boxes, the multiple roadbed boxes are fully paved on the top of the grid-like frame, and the top surfaces of the multiple roadbed boxes are flush and form a support surface; Multiple support columns for temporarily supporting the cantilever structure, the bottoms of the support columns are supported on the support surface.

2. The cantilever support system above the ramp entrance according to claim 1, characterized in that, The main beam is detachably connected to the two side beams, anchor plates are embedded on the opposite sides of the side beams, and the main beam and the anchor plates are connected by connecting pieces.

3. The cantilever support system above the ramp entrance as described in claim 2, characterized in that, The connecting piece is a first angle steel, and the two flange plates of the first angle steel are respectively abutted against the main beam and the anchor plate, and the two flange plates of the first angle steel and the main beam and the anchor plate are connected by bolts.

4. The cantilever support system above the slope entrance according to claim 2, characterized in that A plurality of anchor bars are connected at intervals on one side of the anchor plate, and the plurality of anchor bars are anchored in the side beam. In the anchored state of the plurality of anchor bars, the anchor plate abuts against the side beam.

5. The cantilever support system above the ramp entrance as described in claim 1, characterized in that, The main beam is detachably connected to the secondary beam.

6. A supporting method for the cantilever support system above the slope entrance as described in claim 1, characterized in that, Including steps: Step 1: Construct side beams at the tops of the walls on both sides of the ramp respectively; Step 2: Connect multiple main beams at intervals between the two side beams so that each main beam is arranged perpendicular to the side beams; Step 3: Connect multiple secondary beams at intervals between each adjacent two main beams so that the multiple main beams and the multiple secondary beams are connected to form a grid-like frame; Step 4: Fully pave roadbed boxes on the top of the grid-like frame; Step 5: Support multiple support columns at intervals on the top of the multiple roadbed boxes so that each support column supports at the bottom of the cantilever structure; Step 6: After the cantilever structure reaches the design strength, remove the support columns, the roadbed boxes, the secondary beams and the main beams in sequence.

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