Mounting structure capable of being used for steel-UHPC (Ultra High Performance Concrete) combined steel bridge

Abstract

A mounting structure capable of being used for a steel-UHPC combined steel bridge comprises steel beam bases, two sets of steel beam bases capable of providing fixed supporting and construction spaces, supporting components fixedly arranged at the upper ends of the two sets of steel beam bases and capable of providing stable bottom supporting, and butt joint components fixedly arranged at the upper ends of the two sets of steel beam bases and capable of providing stable bottom supporting. The butt joint component is fixedly arranged at the upper end of the supporting component, the butt joint component can conduct butt joint installation, the installation component is fixedly arranged at the upper end of the butt joint component, and the installation component enables connection between the butt joint components to be firmer; the multiple expansion joints can make connection between the multiple connecting steel plates more stable, toughness can be improved, bridge deformation can be resisted, and the bridge can obtain extremely high strength and durability through pouring of the UHPC layer.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering, in particular to an installation structure that can be used for a steel-UHPC combined steel bridge. Background Art

[0002] Large-span bridges are a symbol of a country's scientific and technological level. The development of traditional bridge installation structures still faces some difficulties in terms of economy and durability. Ordinary reinforced concrete bridges are limited in their spanning capacity due to their heavy deadweight, and their concrete has low tensile strength, which causes cracking and poor durability. Utility Model Content

[0003] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides an installation structure that can be used for a steel-UHPC composite steel bridge, comprising:

[0004] Steel beam base, the two sets of steel beam base can provide fixed support and construction space;

[0005] A support component, wherein the support component is fixedly arranged on the upper ends of the two groups of steel beam bases, and the support component can provide stable bottom support;

[0006] A docking component, the docking component is fixedly arranged on the upper end of the supporting component, and the docking component can be docked and installed;

[0007] An installation component, wherein the installation component is fixedly arranged on the upper end of the docking component, and the installation component makes the connection between the docking components more firm;

[0008] The laying component is fixedly arranged on the upper end of the installation component, and the laying component provides a flat bridge deck for the installation of the steel bridge.

[0009] Furthermore, the supporting component comprises:

[0010] I-shaped steel beams, wherein two groups of I-shaped steel beams are fixedly arranged at the upper ends of the two groups of steel beam bases in a mirror-image manner.

[0011] Furthermore, the docking component includes:

[0012] Connecting steel plates, a plurality of the connecting steel plates are fixedly arranged at the upper ends of the two groups of I-shaped steel beams in a mirror-image manner, and a plurality of the connecting steel plates can provide a stable laying space;

[0013] Docking holes, some of which are opened on the inner sides of some of the connecting steel plates, and some of the docking holes can provide space for fixed connection;

[0014] Internal connecting steel bars, several of which are fixedly arranged in several of the docking holes of several of the connecting steel plates, and several of which enable several of the connecting steel plates to be stably docked.

[0015] Furthermore, the installation component includes:

[0016] An embedded steel plate, which is fixedly arranged on the upper ends of the plurality of connecting steel plates, and can provide a firm support;

[0017] Mounting holes, a plurality of the mounting holes are mirror-fixedly arranged on the inner side of the connecting steel plate, and a plurality of the mounting holes can provide a fixed space;

[0018] U-shaped connecting steel bars, a plurality of said U-shaped connecting steel bars passing through said embedded steel plates and a plurality of said mounting holes, and fixing and connecting a plurality of said connecting steel plates;

[0019] Connecting bolts, wherein a plurality of the connecting bolts are fixedly arranged at the lower end connection of a plurality of the U-shaped connecting steel bars, and a plurality of the connecting bolts can prevent the U-shaped connecting steel bars from falling off;

[0020] Transverse steel bars, a plurality of which are fixedly arranged on the upper end of the embedded steel plate, and a plurality of which are capable of providing a transverse supporting force;

[0021] Vertical steel bars, a plurality of which are fixedly arranged on the upper ends of the plurality of transverse steel bars, and the plurality of vertical steel bars and the plurality of transverse steel bars can form a firm steel mesh;

[0022] A connecting component is fixed in a mirror image inside the embedded steel plate, and the connecting component can improve the connection strength between the plurality of transverse steel bars and the plurality of vertical steel bars.

[0023] Furthermore, the connecting component comprises:

[0024] An arc-shaped connecting section, a plurality of which are arranged in an array inside the embedded steel plate;

[0025] Side steel bars, several of which pass through the embedded steel plates and are fixedly arranged on the upper ends of several of the transverse steel bars in a mirror-image manner, and several of which can improve the stability of the connection.

[0026] Furthermore, the laying components include:

[0027] Expansion joints, wherein a plurality of the expansion joints are mirror-imaged on a plurality of the connecting steel plates, and a plurality of the expansion joints can prevent the beam body from being displaced by a certain distance;

[0028] A UHPC layer, wherein the UHPC layer is fixedly laid on the upper end of the mounting component, and the UHPC layer can improve the overall durability and strength;

[0029] An asphalt layer is laid on the upper end of the UHPC layer.

[0030] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0031] The installation structure can be used for steel-UHPC composite steel bridges. Construction workers can build a steel beam base at the location where it needs to be erected. The several connecting steel plates at the upper end are fixedly supported by the several I-shaped steel beams. At the same time, the construction workers can pass the several internal connecting steel bars through the several docking holes for fixed docking to form a complete plane. The upper end is arranged with several expansion joints, which can effectively adjust the offset and connection between the upper structure caused by vehicle load and bridge construction materials. The upper end is paved with the embedded steel plate, and the several vertical steel bars and the several transverse steel bars are connected to each other through the several U-shaped connecting steel bars to form a steel mesh, which can effectively improve the overall toughness and strength. A layer of UHPC is laid on the upper end of the embedded steel plate, so that the bridge can obtain extremely high strength and durability. At the same time, UHPC has extremely high compressive strength and good impact resistance and fatigue resistance. The asphalt layer at the upper end has the advantages of waterproof, anti-corrosion, durability, etc., and is easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0033] Figure 1 An axonometric view of the utility model is shown;

[0034] Figure 2 The axial side development view of the utility model is shown;

[0035] Figure 3 An axial sectional view of the utility model is shown;

[0036] Figure 4 A front view of the present invention is shown.

[0037] In the figure:

[0038] 1. Steel beam base; 2. Support components; 21. I-shaped steel beam; 3. Docking components; 31. Connecting steel plate;

[0039] 32. Docking hole; 33. Internal connecting steel bars; 4. Mounting parts; 41. Embedded steel plate;

[0040] 42. Mounting hole; 43. U-shaped connecting steel bar; 44. Connecting bolt; 45. Transverse steel bar;

[0041] 46. ​​Vertical reinforcement; 5. Laying components; 51. Expansion joint; 52. UHPC layer; 53. Asphalt layer;

[0042] 6. Connecting parts; 61. Arc-shaped connecting section; 62. Side reinforcement. DETAILED DESCRIPTION

[0043] Now the utility model is further described in detail with reference to the accompanying drawings. Figure 1 , Figure 1 Shows an axonometric view of the present invention; see Figure 2 , Figure 2 Shows an axial side expansion diagram of the utility model; please refer to Figure 3 , Figure 3 Shows an axial side sectional view of the utility model; see Figure 4 , Figure 4 Shows a front view of the utility model; Figure 1-4 As shown, an installation structure that can be used for a steel-UHPC composite steel bridge includes:

[0044] Steel beam base 1, two groups of the steel beam base 1 can provide fixed support and construction space;

[0045] Support component 2, the support component 2 is fixedly arranged on the upper ends of the two groups of steel beam bases 1, and the support component 2 can provide stable bottom support;

[0046] A docking component 3, wherein the docking component 3 is fixedly arranged on the upper end of the supporting component 2, and the docking component 3 can be docked and installed;

[0047] An installation component 4, wherein the installation component 4 is fixedly arranged on the upper end of the docking component 3, and the installation component 4 makes the connection between the docking components 3 more firm;

[0048] The laying component 5 is fixedly arranged on the upper end of the installation component 4, and the laying component 5 provides a flat bridge deck for the installation of the steel bridge.

[0049] Optionally, the supporting component 2 includes:

[0050] I-shaped steel beams 21, two groups of the I-shaped steel beams 21 are mirror-fixedly arranged at the upper ends of the two groups of the steel beam bases 1, and the two groups of the I-shaped steel beams 21 can provide support for the bottom ends.

[0051] Optionally, the docking component 3 includes:

[0052] Connecting steel plates 31, a plurality of the connecting steel plates 31 are fixedly arranged at the upper ends of the two groups of I-shaped steel beams 21 in a mirror-image manner, and a plurality of the connecting steel plates 31 can provide a stable laying space;

[0053] Docking holes 32, a plurality of the docking holes 32 are provided inside a plurality of the connecting steel plates 31, and a plurality of the docking holes 32 can provide a space for fixed connection;

[0054] The internal connecting steel bars 33 are fixedly arranged in the docking holes 32 of the connecting steel plates 31. The internal connecting steel bars 33 enable the connecting steel plates 31 to be stably docked. The connecting steel plates 31 are fixedly connected by the internal connecting steel bars 33 passing through the docking holes 32, so that the connection is tightened and more resilient.

[0055] Optionally, the mounting component 4 includes:

[0056] An embedded steel plate 41, wherein the embedded steel plate 41 is fixedly disposed on the upper ends of the plurality of connecting steel plates 31, and the embedded steel plate 41 can provide a firm support;

[0057] Mounting holes 42, a plurality of the mounting holes 42 are mirror-fixedly arranged on the inner side of the connecting steel plate 31, and a plurality of the mounting holes 42 can provide a fixed space;

[0058] U-shaped connecting steel bars 43, a plurality of the U-shaped connecting steel bars 43 pass through the embedded steel plates 41 and the plurality of the mounting holes 42 to fix and connect the plurality of the connecting steel plates 31;

[0059] Connecting bolts 44, a plurality of the connecting bolts 44 are fixedly arranged at the lower end connection of a plurality of the U-shaped connecting steel bars 43, and a plurality of the connecting bolts 44 can prevent the U-shaped connecting steel bars 43 from falling off;

[0060] Transverse steel bars 45, a plurality of said transverse steel bars 45 are fixedly arranged at the upper end of said embedded steel plate 41, and a plurality of said transverse steel bars 45 can provide a transverse supporting force;

[0061] Vertical steel bars 46, a plurality of the vertical steel bars 46 are fixedly arranged on the upper ends of the plurality of the transverse steel bars 45, and the plurality of the vertical steel bars 46 and the plurality of the transverse steel bars 45 can form a strong steel mesh;

[0062] The connecting component 6 is fixed in a mirror image inside the embedded steel plate 41. The connecting component 6 can improve the connection strength between the plurality of transverse steel bars 45 and the plurality of vertical steel bars 46. A steel mesh is formed between the plurality of transverse steel bars 45 and the plurality of vertical steel bars 46, so that the embedded steel plate 41 is more secure. At the same time, the plurality of U-shaped connecting steel bars 43 and the plurality of connecting bolts 44 fix the plurality of connecting steel plates 31 in connection.

[0063] Optionally, the connecting component 6 includes:

[0064] An arc-shaped connecting section 61, wherein a plurality of the arc-shaped connecting sections 61 are arranged in an array inside the embedded steel plate 41;

[0065] The side steel bars 62 , a plurality of the side steel bars 62 pass through the embedded steel plate 41 and are fixedly arranged on the upper ends of the plurality of the transverse steel bars 45 in a mirror image manner, and the plurality of the side steel bars 62 can improve the stability of the connection.

[0066] Optionally, the laying component 5 includes:

[0067] Expansion joints 51, a plurality of the expansion joints 51 are mirror-imaged on a plurality of the connecting steel plates 31, and a plurality of the expansion joints 51 can prevent the beam body from being displaced by a certain distance;

[0068] A UHPC layer 52, wherein the UHPC layer 52 is fixedly laid on the upper end of the mounting component 4, and the UHPC layer 52 can improve the overall durability and strength;

[0069] Asphalt layer 53, the asphalt layer 53 is laid on the upper end of the UHPC layer 52, and the expansion joints 51 can make the connection between the connecting steel plates 31 more stable, improve the toughness, and resist the deformation of the bridge. Through the pouring of the UHPC layer 52, the bridge can obtain extremely high strength and durability. At the same time, UHPC has extremely high compressive strength and good impact and fatigue resistance. The uppermost asphalt layer 53 has the advantages of waterproof, anti-corrosion, durability, etc., and is easy to maintain.

[0070] Working principle: The installation structure of the steel-UHPC composite steel bridge can be used. The construction personnel can build the steel beam base 1 at the position where it needs to be erected. The several connecting steel plates 31 at the upper end are fixedly supported by the several I-shaped steel beams 21. At the same time, the construction personnel can pass through the several internal connecting steel bars 33 through the several docking holes 32 for fixed docking to form a complete plane. The upper end is arranged with several expansion joints 51, which can effectively adjust the offset and connection between the upper structure caused by the vehicle load and the bridge construction materials. The upper end is paved with the embedded steel plate 41, and the several vertical steel bars 46 and the several transverse steel bars 45 are connected to each other through the several U-shaped connecting steel bars 43 to form a steel mesh, which can effectively improve the overall toughness and strength. A layer of the UHPC layer 52 is laid on the upper end of the embedded steel plate 41, so that the bridge can obtain extremely high strength and durability. At the same time, the UHPC material has extremely high compressive strength and has good impact resistance and fatigue resistance. The asphalt layer 53 at the top has the advantages of waterproof, anti-corrosion, durability, etc., and is easy to maintain.

Claims

1. An installation structure that can be used for a steel-UHPC composite steel bridge, characterized in that: include Steel beam base (1), two sets of the steel beam base (1) can provide fixed support and construction space; A support component (2), wherein the support component (2) is fixedly arranged on the upper ends of the two groups of steel beam bases (1), and the support component (2) can provide stable bottom support; A docking component (3), the docking component (3) being fixedly arranged on the upper end of the supporting component (2), and the docking component (3) being capable of docking installation; An installation component (4), wherein the installation component (4) is fixedly arranged on the upper end of the docking component (3), and the installation component (4) makes the connection between the docking components (3) more secure; A laying component (5), wherein the laying component (5) is fixedly arranged on the upper end of the installation component (4), and the laying component (5) provides a flat bridge deck for the installation of the steel bridge; The supporting component (2) comprises: I-shaped steel beams (21), wherein two groups of the I-shaped steel beams (21) are fixedly arranged in a mirror-image manner on the upper ends of the two groups of the steel beam bases (1); The docking component (3) comprises: Connecting steel plates (31), wherein a plurality of the connecting steel plates (31) are fixedly arranged in a mirror-image manner on the upper ends of the two groups of I-shaped steel beams (21), and the plurality of the connecting steel plates (31) can provide a stable laying space; Docking holes (32), a plurality of the docking holes (32) are opened inside a plurality of the connecting steel plates (31), and a plurality of the docking holes (32) can provide space for fixed connection; Internal connecting steel bars (33), wherein a plurality of the internal connecting steel bars (33) are fixedly arranged in a plurality of the butt holes (32) of a plurality of the connecting steel plates (31), and the plurality of the internal connecting steel bars (33) can enable the plurality of the connecting steel plates (31) to be stably butt-jointed; The laying component (5) comprises: Expansion joints (51), a plurality of the expansion joints (51) are mirror-imaged on a plurality of the connecting steel plates (31), and the plurality of the expansion joints (51) can prevent the beam body from being displaced by a certain distance; A UHPC layer (52), wherein the UHPC layer (52) is fixedly laid on the upper end of the mounting component (4), and the UHPC layer (52) can improve the overall durability and strength; An asphalt layer (53), the asphalt layer (53) is laid on the upper end of the UHPC layer (52).

2. The mounting structure for a steel-UHPC composite steel bridge according to claim 1, characterized in that: The mounting component (4) comprises: An embedded steel plate (41), wherein the embedded steel plate (41) is fixedly arranged on the upper ends of the plurality of connecting steel plates (31), and the embedded steel plate (41) can provide a firm support; Mounting holes (42), a plurality of the mounting holes (42) are mirror-fixedly arranged on the inner side of the connecting steel plate (31), and a plurality of the mounting holes (42) can provide a fixed space; U-shaped connecting steel bars (43), wherein a plurality of the U-shaped connecting steel bars (43) pass through the embedded steel plates (41) and the plurality of mounting holes (42) to fix and connect the plurality of connecting steel plates (31); Connecting bolts (44), wherein a plurality of the connecting bolts (44) are fixedly arranged at the lower end connection of a plurality of the U-shaped connecting steel bars (43), and the plurality of the connecting bolts (44) can prevent the U-shaped connecting steel bars (43) from falling off; Transverse steel bars (45), a plurality of the transverse steel bars (45) are fixedly arranged on the upper end of the embedded steel plate (41), and the plurality of the transverse steel bars (45) can provide a transverse supporting force; Vertical steel bars (46), wherein a plurality of the vertical steel bars (46) are fixedly arranged on the upper ends of the plurality of the transverse steel bars (45), and the plurality of the vertical steel bars (46) and the plurality of the transverse steel bars (45) can form a strong steel mesh; A connecting component (6), wherein the connecting component (6) is fixed in a mirror-image manner inside the embedded steel plate (41), and the connecting component (6) can improve the connection strength between the plurality of transverse steel bars (45) and the plurality of vertical steel bars (46).

3. The mounting structure for a steel-UHPC composite steel bridge according to claim 2, characterized in that: The connecting component (6) comprises: An arc-shaped connecting section (61), wherein a plurality of the arc-shaped connecting sections (61) are arranged in an array inside the embedded steel plate (41); Side reinforcement bars (62), a plurality of the side reinforcement bars (62) pass through the embedded steel plate (41) and are fixedly arranged on the upper ends of a plurality of the transverse reinforcement bars (45) in a mirror-image manner, and the plurality of the side reinforcement bars (62) can improve the stability of the connection.

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