Steel arch support device for deck type box arch bridge construction

Abstract

The utility model provides a steel arch support device for deck type box arch bridge construction. The steel arch support device for deck type box arch bridge construction comprises an arch support, a pier and a bottom layer, the pier is arranged on the top of the arch support, and the bottom layer is arranged on the outer wall of one side of the arch support; the bottom layer is composed of a first base layer and a second base layer, the first base layer is located at the top of the second base layer, and a support is arranged on the first base layer; the support comprises a plurality of first concrete supports, a plurality of second concrete supports, a plurality of third concrete supports, a plurality of fourth concrete supports, a plurality of first steel pipe stand columns, a plurality of second steel pipe stand columns and a plurality of third steel pipe stand columns. According to the steel arch support device for deck type box arch bridge construction, the new steel arch support is arranged, so that the stress stability of the steel arch can be guaranteed, and the problems of settlement, deformation and the like of the steel arch due to low rock mass strength can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, in particular to a steel arch frame supporting device for the construction of a top-bearing box-type arch bridge. Background Art

[0002] A top-supported arch bridge is a bridge whose deck is set on the main load-bearing structure of the bridge span (i.e., the arch rib). The arch seat is a component that transmits the thrust of the arch rib end (also called the arch end) to the bedrock. It is located at the connection between the two ends of the arch bridge and the bedrock. Both ends of the arch rib of the top-supported arch bridge are supported on the arch seat. The arch seat is an important component supporting the structure above the arch. The arch seat used to support the arch rib is a permanent support, which is generally a reinforced concrete structure supported on the bedrock. Among them, the arch rib is also called the main arch or arch ring. When constructing a top-supported box-type arch bridge with a reinforced concrete arch ring as the arch rib, the arch rib is usually cast in place using a pre-erected steel arch frame; after the arch rib is cast and formed, the steel arch frame is removed. After the steel arch frame is erected and before the arch rib is cast, in order to accurately grasp the stress, strain and displacement of the steel arch frame under the influence of factors such as load and temperature, and to ensure the safe and smooth casting of the arch rib, the erected steel arch frame needs to be pre-stressed, and the steel arch frame needs to be pre-stressed in full section. The main purpose of pre-stressing the steel arch frame is: first, to test the strength and stability of the steel arch frame and the support, and to eliminate the inelastic deformation of the steel arch frame before the arch rib concrete casting construction, mainly to eliminate the settlement deformation of the steel arch frame and the deformation of the contact parts of the arch frame; second, to test the stress and elastic deformation of the steel arch frame, and measure the elastic deformation of the steel arch frame. After the arch rib is cast, the steel arch frame is dismantled.

[0003] At present, prefabricated blocks are mainly used for paving of steel arch frames during the construction of steel arch support frames. Due to their small area and low strength, prefabricated blocks are difficult to bear the load of the steel arch frames in soft rock and soil surrounding rock, and they are crushed and settled, resulting in reduced stability of the steel arch frames and endangering construction safety.

[0004] Therefore, it is necessary to provide a new steel arch support device for top-supported box-type arch bridge construction to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a steel arch frame support device for the construction of an upper-supported box-type arch bridge, which can not only ensure the force stability of the steel arch frame by setting a new steel arch frame support, but also avoid the problems of settlement and deformation of the steel arch frame due to low rock strength.

[0006] In order to solve the above technical problems, the utility model provides a steel arch frame support device for construction of a top-bearing box-type arch bridge, comprising: an arch seat, a pier and a bottom layer, wherein the pier is arranged on the top of the arch seat, and the bottom layer is arranged on one side outer wall of the arch seat;

[0007] The bottom layer is composed of a base layer 1 and a base layer 2, wherein the base layer 1 is located on the top of the base layer 2, and a bracket is provided on the base layer 1;

[0008] The bracket includes a plurality of concrete supports 1, a plurality of concrete supports 2, a plurality of concrete supports 3, a plurality of concrete supports 4, a plurality of steel pipe columns 1, a plurality of steel pipe columns 2, a plurality of steel pipe columns 3, a plurality of steel pipe columns 4, two groups of connecting steel pipes 1, a plurality of connecting steel pipes 2, two groups of connecting steel pipes 3, a plurality of connecting steel pipes 4, two groups of supporting inclined steel pipes 1, a plurality of supporting inclined steel pipes 2, a plurality of connecting steel pipes 5, a plurality of supporting inclined steel pipes 3, a plurality of column top beams, a plurality of adjustment blocks and a plurality of longitudinal beam pads;

[0009] A plurality of concrete supports 1, a plurality of concrete supports 2, a plurality of concrete supports 3 and a plurality of concrete supports 4 are all arranged on the base 1, and a plurality of steel pipe columns 1, a plurality of steel pipe columns 2, a plurality of steel pipe columns 3 and a plurality of steel pipe columns 4 are respectively arranged on the tops of the plurality of concrete supports 1, a plurality of concrete supports 2, a plurality of concrete supports 3 and a plurality of concrete supports 4;

[0010] Multiple steel tube columns one are connected through two sets of connecting steel tubes one, multiple steel tube columns two are connected through multiple connecting steel tubes two, multiple steel tube columns one and multiple steel tube columns two are connected through two sets of connecting steel tubes three, multiple steel tube columns two and multiple steel tube columns three are connected through multiple connecting steel tubes four, multiple steel tube columns one and multiple steel tube columns two are connected through multiple supporting inclined steel tubes one, multiple steel tube columns two and multiple steel tube columns three are connected through multiple supporting inclined steel tubes two, multiple steel tube columns three and multiple steel tube columns four are connected through multiple connecting steel tubes five, multiple steel tube columns one, multiple steel tube columns two, multiple steel tube columns three and multiple steel tube columns four are connected through multiple supporting inclined steel tubes three respectively.

[0011] As a further solution of the utility model, the number of each group of connecting steel pipes one is multiple, and the number of each group of connecting steel pipes three is multiple.

[0012] As a further solution of the utility model, the top ends of multiple steel tube columns one, multiple steel tube columns two, multiple steel tube columns three and multiple steel tube columns four are respectively connected to the bottom ends of multiple column top cross beams, multiple adjustment blocks are respectively arranged on the tops of the multiple column top cross beams, and multiple longitudinal beam pads are respectively arranged on the tops of the multiple adjustment blocks.

[0013] As a further solution of the utility model, the base layer 2 is made of moderately weathered limestone, and the base layer 1 is made of strongly weathered limestone and hornblende.

[0014] As a further solution of the utility model, the tops of the plurality of longitudinal beam pads are connected to the same supporting cross beam.

[0015] As a further solution of the utility model, the supporting crossbeam is connected to a transverse distribution beam, and the transverse distribution beam is connected to a low mold.

[0016] Compared with the related art, the steel arch support device for construction of a top-bearing box-type arch bridge provided by the utility model has the following beneficial effects:

[0017] 1. The utility model can not only ensure the force stability of the steel arch frame by setting up a new steel arch frame support, but also avoid the problems of settlement and deformation of the steel arch frame due to low rock strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the bracket in the utility model;

[0021] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part A.

[0022] In the figure: 1. arch seat; 2. pier; 3. bottom layer; 31. base layer one; 32. base layer two; 4. bracket; 41. concrete support one; 42. concrete support two; 43. concrete support three; 44. concrete support four; 45. steel pipe column one; 46. steel pipe column two; 47. steel pipe column three; 48. steel pipe column four; 49. connecting steel pipe one; 50. connecting steel pipe two; 51. connecting steel pipe three; 52. connecting steel pipe four; 53. supporting inclined steel pipe one; 54. supporting inclined steel pipe two; 55. connecting steel pipe five; 56. supporting inclined steel pipe three; 57. column top beam; 58. adjustment block; 59. longitudinal beam pad; 5. supporting beam; 6. transverse distribution beam; 7. low formwork. DETAILED DESCRIPTION

[0023] Please refer to Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 It is a schematic diagram of the structure of the utility model; Figure 2 It is a schematic diagram of the structure of the bracket in the utility model; Figure 3 for Figure 1 The enlarged structural diagram of the A part in the middle. The steel arch frame support device for the construction of the top-bearing box-type arch bridge includes: an arch seat 1, a pier 2 and a bottom layer 3, wherein the pier 2 is arranged on the top of the arch seat 1, and the bottom layer 3 is arranged on one side outer wall of the arch seat 1;

[0024] The bottom layer 3 is composed of a base layer 1 31 and a base layer 2 32. The base layer 1 31 is located on the top of the base layer 2 32. A bracket 4 is provided on the base layer 1 31.

[0025] The bracket 4 includes a plurality of concrete bearings 1 41, a plurality of concrete bearings 2 42, a plurality of concrete bearings 3 43, a plurality of concrete bearings 44, a plurality of steel pipe columns 1 45, a plurality of steel pipe columns 2 46, a plurality of steel pipe columns 3 47, a plurality of steel pipe columns 48, two groups of connecting steel pipes 1 49, a plurality of connecting steel pipes 2 50, two groups of connecting steel pipes 3 51, a plurality of connecting steel pipes 4 52, two groups of supporting inclined steel pipes 1 53, a plurality of supporting inclined steel pipes 2 54, a plurality of connecting steel pipes 55, a plurality of supporting inclined steel pipes 3 56, a plurality of column top beams 57, a plurality of adjustment blocks 58 and a plurality of longitudinal beam pads 59;

[0026] A plurality of concrete supports 1 41, a plurality of concrete supports 2 42, a plurality of concrete supports 3 43 and a plurality of concrete supports 4 44 are all arranged on the base 1 31, and a plurality of steel pipe columns 1 45, a plurality of steel pipe columns 2 46, a plurality of steel pipe columns 3 47 and a plurality of steel pipe columns 4 48 are respectively arranged on the tops of the plurality of concrete supports 1 41, the plurality of concrete supports 2 42, the plurality of concrete supports 3 43 and the plurality of concrete supports 4 44;

[0027] Multiple steel tube columns 1 45 are connected by two sets of connecting steel tubes 1 49, multiple steel tube columns 2 46 are connected by multiple connecting steel tubes 2 50, multiple steel tube columns 1 45 and multiple steel tube columns 2 46 are connected by two sets of connecting steel tubes 3 51, multiple steel tube columns 2 46 and multiple steel tube columns 3 47 are connected by multiple connecting steel tubes 4 52, multiple steel tube columns 1 45 and multiple steel tube columns 2 46 are connected by multiple supporting inclined steel tubes 1 53, multiple steel tube columns 2 46 and multiple steel tube columns 3 47 are connected by multiple supporting inclined steel tubes 2 54, multiple steel tube columns 3 47 and multiple steel tube columns 48 are connected by multiple connecting steel tubes 5 55, and multiple steel tube columns 1 45, multiple steel tube columns 2 46, multiple steel tube columns 3 47 and multiple steel tube columns 4 48 are respectively connected by multiple supporting inclined steel tubes 3 56.

[0028] The number of each group of connecting steel pipes 49 is multiple, and the number of each group of connecting steel pipes 3 51 is multiple.

[0029] The top ends of multiple steel tube columns 1 45 , multiple steel tube columns 2 46 , multiple steel tube columns 3 47 and multiple steel tube columns 4 48 are respectively connected to the bottom ends of multiple column top cross beams 57 , multiple adjustment blocks 58 are respectively arranged on the top ends of multiple column top cross beams 57 , and multiple longitudinal beam pads 59 are respectively arranged on the top ends of multiple adjustment blocks 58 .

[0030] The second base layer 32 is made of moderately weathered limestone, and the first base layer 31 is made of strongly weathered limestone and hornblende.

[0031] The tops of the plurality of longitudinal beam pads 59 are connected to the same supporting cross beam 5 .

[0032] The supporting crossbeam 5 is connected to a transverse distribution beam 6 , and the transverse distribution beam 6 is connected to a low mold 7 .

[0033] The cooperation among the bottom layer 3, the concrete support 1 41, the concrete support 2 42, the concrete support 3 43 and the concrete support 4 44 can improve the firmness and stability of the steel pipe column 1 45, the steel pipe column 2 46, the steel pipe column 3 47 and the steel pipe column 4 48 and avoid the occurrence of settlement deformation. The steel pipe 1 53, multiple supporting inclined steel pipe 2 54, multiple connecting steel pipe 55 and multiple supporting inclined steel pipe 3 56, multiple column top beams 57, multiple adjustment blocks 58 and multiple longitudinal beam pads 59 constitute the bracket body, and the supporting beam 5, the transverse distribution beam 6 and the low mold 7 form a platform, so that the support frame body is formed through the cooperation of the bracket body and the platform, which can ensure the stability of the force. Therefore, the new steel arch frame support can not only ensure the force stability of the steel arch frame, but also avoid the settlement and deformation of the steel arch frame due to the low strength of the rock mass.

[0034] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0035] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0036] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A steel arch support device for construction of a top-bearing box-type arch bridge, It is characterized in that include: An abutment, a pier and a bottom layer, wherein the pier is arranged on the top of the abutment, and the bottom layer is arranged on one side outer wall of the abutment; The bottom layer is composed of a base layer 1 and a base layer 2, wherein the base layer 1 is located on the top of the base layer 2, and a bracket is provided on the base layer 1; The bracket includes a plurality of concrete supports 1, a plurality of concrete supports 2, a plurality of concrete supports 3, a plurality of concrete supports 4, a plurality of steel pipe columns 1, a plurality of steel pipe columns 2, a plurality of steel pipe columns 3, a plurality of steel pipe columns 4, two groups of connecting steel pipes 1, a plurality of connecting steel pipes 2, two groups of connecting steel pipes 3, a plurality of connecting steel pipes 4, two groups of supporting inclined steel pipes 1, a plurality of supporting inclined steel pipes 2, a plurality of connecting steel pipes 5, a plurality of supporting inclined steel pipes 3, a plurality of column top beams, a plurality of adjustment blocks and a plurality of longitudinal beam pads; A plurality of concrete supports 1, a plurality of concrete supports 2, a plurality of concrete supports 3 and a plurality of concrete supports 4 are all arranged on the base 1, and a plurality of steel pipe columns 1, a plurality of steel pipe columns 2, a plurality of steel pipe columns 3 and a plurality of steel pipe columns 4 are respectively arranged on the tops of the plurality of concrete supports 1, a plurality of concrete supports 2, a plurality of concrete supports 3 and a plurality of concrete supports 4; Multiple steel tube columns one are connected through two sets of connecting steel tubes one, multiple steel tube columns two are connected through multiple connecting steel tubes two, multiple steel tube columns one and multiple steel tube columns two are connected through two sets of connecting steel tubes three, multiple steel tube columns two and multiple steel tube columns three are connected through multiple connecting steel tubes four, multiple steel tube columns one and multiple steel tube columns two are connected through multiple supporting inclined steel tubes one, multiple steel tube columns two and multiple steel tube columns three are connected through multiple supporting inclined steel tubes two, multiple steel tube columns three and multiple steel tube columns four are connected through multiple connecting steel tubes five, multiple steel tube columns one, multiple steel tube columns two, multiple steel tube columns three and multiple steel tube columns four are connected through multiple supporting inclined steel tubes three respectively.

2. The steel arch support device for construction of a deck box-type arch bridge according to claim 1, Features: The number of each group of connecting steel pipes one is multiple, and the number of each group of connecting steel pipes three is multiple.

3. The steel arch support device for construction of a deck box-type arch bridge according to claim 1, Features: The top ends of the plurality of steel tube columns one, the plurality of steel tube columns two, the plurality of steel tube columns three and the plurality of steel tube columns four are respectively connected to the bottom ends of the plurality of column top cross beams, the plurality of adjustment blocks are respectively arranged on the top ends of the plurality of column top cross beams, and the plurality of longitudinal beam pads are respectively arranged on the top ends of the plurality of adjustment blocks.

4. The steel arch support device for construction of a deck box-type arch bridge according to claim 1, Features: The second base layer is made of moderately weathered limestone, and the first base layer is made of strongly weathered limestone and hornblende.

5. The steel arch support device for construction of a deck box-type arch bridge according to claim 1, Features: The tops of the plurality of longitudinal beam pads are connected with a same supporting cross beam.

6. The steel arch support device for construction of a deck box-type arch bridge according to claim 5, Features: The supporting crossbeam is connected with a transverse distribution beam, and the transverse distribution beam is connected with a low mold.

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