Temporary jig frame for continuous-flow construction of hyperbolic steel connecting bridge overcrossing subway station building

Abstract

The utility model discloses an overpass subway station building hyperbolic steel connecting bridge non-stop construction temporary jig frame which comprises profile steel bases installed on the two opposite sides of a platform plate of a bailey truss, two profile steel bases are arranged on each side of the platform plate, and the two profile steel bases are arranged in the length direction of the platform plate; the bearing frame comprises two stand columns arranged oppositely and a plurality of cross beams connected between the two stand columns, the cross beams are arranged at intervals in the vertical direction, the two stand columns are arranged in the width direction of the platform plate, and a containing through groove allowing the end of an upper chord steel beam of the hyperbolic steel connecting bridge to be embedded is formed between the cross beam on the top layer and the two stand columns; the two inclined pull rods are arranged in a crossed mode and connected to the two opposite bearing frames on the two opposite sides of the platform plate in a pulling mode. And the inclined supporting rod is supported between the stand column and the end part of the profile steel base. The utility model solves the problems that the upper chord steel beam of the steel connecting bridge has no acting point in the overhead installation process and the installation difficulty is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction, and particularly relates to a continuous-flow construction temporary jig frame for a hyperbolic steel continuous bridge overpassing a subway station building. BACKGROUND

[0002] When a super-long large-span hyperbolic steel continuous bridge is erected above a city trunk road and a subway station building, the conventional construction method is to close the city trunk road, erect a temporary jig frame above the city trunk road, and then perform scattered assembly or use a large crawler crane to perform integral hoisting. During the construction of the steel continuous bridge, the only motorway on the city trunk road cannot be occupied, otherwise a safety accident may occur and traffic congestion may be caused, and only the green belt and the sidewalk can be occupied. An operation platform is erected in the limited space, scattered assembly is performed on site, a hydraulic synchronous sliding construction technology is used, and the steel continuous bridge is cumulatively slid and positioned. The influence on the subway in operation, the city trunk road, and underground municipal pipelines is minimal, and the construction requirements of the special protection zone of the subway are met.

[0003] During the construction process, the elevation of the arc-shaped bridge body, the inclined pull rod, the vertical rod, and the horizontal beam elevation control are extremely difficult, especially the installation of the upper chord in the air is extremely difficult, many factors such as wind force, outward expansion and overturning of the top arc-shaped member need to be considered, the self-weight of the steel continuous bridge member is large, the maximum weight of a single member is 15 t, and the maximum cumulative weight of the upper member is 80 t, and therefore the vertical and other horizontal member installation can be performed only after the upper main chord is installed and leveled.

[0004] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the utility model and should not be regarded as an acknowledgment or any form of suggestion that it forms prior art that is publicly known. CONTENT OF THE UTILITY MODEL

[0005] In order to overcome the defects in the prior art, the continuous-flow construction temporary jig frame for a hyperbolic steel continuous bridge overpassing a subway station building is provided to solve the problem that the installation of the upper chord steel beam of the steel continuous bridge in the air has no anchoring point and is difficult to install.

[0006] To achieve the above-mentioned purpose, a continuous-flow construction temporary jig frame for a hyperbolic steel continuous bridge overpassing a subway station building is provided, which comprises:

[0007] A profile steel base is installed on the opposite sides of the platform plate of the Bailey frame, two profile steel bases are arranged on each side of the platform plate, and the two profile steel bases are arranged along the length direction of the platform plate;

[0008] A support frame comprises two opposite columns and a plurality of cross beams connected between the two columns, the plurality of cross beams are arranged in a vertical direction, the two columns are arranged in a width direction of the platform plate, and a receiving groove is formed between the top layer cross beam and the two columns for embedding the end of the upper chord steel beam of the hyperbolic steel continuous bridge.

[0009] Two oblique tie rods are arranged in cross, and two supporting frames arranged oppositely at positions of opposite sides of the platform plate are pulled together;

[0010] An oblique support rod is supported between the column and the end of the steel base.

[0011] Further, the upper end of the oblique tie rod is connected to the two columns of the supporting frame.

[0012] Further, the opposite sides of the column of a supporting frame are respectively supported with the oblique support rods.

[0013] Further, the steel base comprises:

[0014] Two long beams are arranged oppositely along the length direction of the platform plate, and the column is vertically arranged on the long beam.

[0015] A plurality of short beams are connected to the two long beams.

[0016] Further, the lower end of the oblique tie rod is connected to the intersection of the column and the long beam.

[0017] The upper-crossing subway station house double-curved steel continuous bridge uninterrupted flow construction temporary jig of the utility model sets the force point in the process of installing the upper chord steel beam in the air of the overpass bridge, can quickly level the upper chord steel beam after installation to facilitate the installation of the vertical and other horizontal components of the steel continuous bridge. The upper-crossing subway station house double-curved steel continuous bridge uninterrupted flow construction temporary jig of the utility model utilizes the triangular stability principle, adopts the H-shaped steel welded overall jig, and contains the upper chord steel beam in the jig accommodating groove, and meets the rapid construction of the large and heavy components in the air on site.

[0018] The upper-crossing subway station house double-curved steel continuous bridge uninterrupted flow construction temporary jig of the utility model utilizes the triangular stability principle, and the welded finished jig realizes the installation of the large-span and heavy components in other parts of the effective turnover except for the adjustment of the top horizontal rod according to the component elevation. BRIEF DESCRIPTION OF DRAWINGS

[0019] Other features, objects and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments, made with reference to the accompanying drawings:

[0020] Fig. 1 It is a structural schematic view of the upper-crossing subway station house double-curved steel continuous bridge uninterrupted flow construction temporary jig of the utility model embodiment.

[0021] Fig. 2 It is a side view of the upper-crossing subway station house double-curved steel continuous bridge uninterrupted flow construction temporary jig of the utility model embodiment.

[0022] Fig. 3 Figure 2 is a use state diagram of the temporary jig frame for continuous-flow construction of the hyperbolic steel continuous bridge overpassing the subway station building according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] The application will be described in further detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application and are not a limitation on the application. In addition, it should be noted that only parts related to the application are shown in the drawings for ease of description.

[0024] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and embodiments.

[0025] Referring to Figs. 1 to 3 The utility model provides a kind of overpassing subway station building hyperbolic steel continuous bridge continuous-flow construction temporary jig frame, it include: section steel base 1, support frame 2, oblique pull rod 3, oblique bracing 4.

[0026] Specifically, section steel base 1 is installed on the opposite sides of the platform plate of bailey frame 5. The platform plate is installed on the bailey frame as an operating platform. Each side of the platform plate is provided with two section steel bases 1. Two section steel bases 1 are arranged along the length direction of the platform plate.

[0027] In the present embodiment, the section steel base is rectangular. The section steel base is arranged along the length direction of the platform plate.

[0028] Among them, section steel base 1 includes: long beam and short beam. Long beam and short beam are respectively prepared by H-shaped steel.

[0029] Specifically, the number of long beams is two. Two long beams are oppositely arranged. Long beam is arranged along the length direction of the platform plate. Column 21 is vertically arranged on the long beam. The number of short beams is a plurality of short beams. The short beam is connected to the two long beams.

[0030] Support frame 2 includes two columns 21 and a plurality of cross beams 22.

[0031] Two columns 21 are oppositely arranged. Column 21 is vertically arranged on the long beam. In the present embodiment, the column is arranged in the middle part of the long beam.

[0032] A plurality of cross beams 22 are connected between two columns 21. A plurality of cross beams 22 are arranged in vertical direction. Two columns 21 are arranged along the width direction of the platform plate. The cross beam 22 of the top layer and the two columns 21 form a receiving through slot 20 for embedding the end part of the top chord steel beam 6 of the hyperbolic steel continuous bridge.

[0033] The number of the diagonal pull rods 3 is two. The two diagonal pull rods 3 are arranged in cross. The diagonal pull rods 3 are connected to the opposite two support frames 2 on the opposite sides of the platform plate.

[0034] As a preferable embodiment, the upper end of the diagonal pull rod 3 is connected to the two vertical columns 21 of the support frame 2. The lower end of the diagonal pull rod 3 is connected to the intersection of the vertical column 21 and the long beam.

[0035] The diagonal support rod 4 is supported between the vertical column 21 and the end of the steel base 1.

[0036] In the embodiment, the opposite two sides of the vertical column 21 of one support frame 2 on one side of the platform plate are respectively supported by the diagonal support rods 4. One side of the vertical column of the other support frame on one side of the platform plate is supported by the diagonal support rod.

[0037] In the embodiment, the utility model discloses a continuous-flow construction temporary jig of subway station house hyperbolic steel continuous bridge.

[0038] The utility model discloses a continuous-flow construction temporary jig of subway station house hyperbolic steel continuous bridge sets the force point in the process of installing the upper chord steel beam of the overpass, can make the upper chord steel beam install after fast copy level to facilitate the vertical and other horizontal component installation of steel continuous bridge. The utility model discloses a continuous-flow construction temporary jig of subway station house hyperbolic steel continuous bridge utilizes the triangle stability principle, adopts H type steel welded whole jig, and the jig contains the recess of upper chord steel beam hoisting, and the upper end of steel beam is welded vertical pole and installs double row steel wire rope as safety rope before hoisting, ensures the safety belt to hang and set in the construction process, adopts the curved arm vehicle to assist welding in addition to adopting the basket to carry out welding in the welding process, satisfies the quick construction of on -the -spot open -air oversize, superheavy component.

[0039] The utility model discloses a continuous-flow construction temporary jig of subway station house hyperbolic steel continuous bridge sets the force point in the process of installing the upper chord steel beam of the overpass, can make the upper chord steel beam install after fast copy level to facilitate the vertical and other horizontal component installation of steel continuous bridge. The utility model discloses a continuous-flow construction temporary jig of subway station house hyperbolic steel continuous bridge utilizes the triangle stability principle, adopts H type steel welded whole jig, and the jig contains the recess of upper chord steel beam hoisting, and the upper end of steel beam is welded vertical pole and installs double row steel wire rope as safety rope before hoisting, ensures the safety belt to hang and set in the construction process, adopts the curved arm vehicle to assist welding in addition to adopting the basket to carry out welding in the welding process, satisfies the quick construction of on -the -spot open -air oversize, superheavy component.

[0040] To reduce the impact of wind on the support frame, 12mm steel wire rope is used on one side of the support frame for tensioning. Two 200mm H-beam diagonal tie rods are installed on two opposing support frames on either side of the platform. These two diagonal tie rods form an X-shaped tie. The ends of these tie rods are welded to the columns and the long beams of the steel base, respectively. The base of the column is welded to a 200mm H-beam welded steel base. The long beam of the steel base runs full length, connecting the column and diagonal braces as a single unit. The columns, diagonal braces, horizontal beams, and steel base are all constructed from 200mm H-beam steel.

[0041] The temporary cradle for the continuous construction of the hyperbolic steel bridge over the subway station building of this utility model adopts a 200mm H-shaped steel welded finished cradle to ensure steady construction of the upper chord and solve the problem of overhead construction of super-high and super-heavy components.

[0042] The temporary cradle for the continuous construction of the hyperbolic steel bridge over the subway station building of this utility model adopts common H-shaped steel materials and utilizes the triangle stability principle to weld the finished cradle. In addition to the top horizontal bar being adjusted according to the component elevation, the cradle for installing large-span and overweight components with effective turnover in other parts is realized.

[0043] The utility model uses conventional H-shaped steel to weld a finished tire frame above the Bailey frame for the continuous construction of the hyperbolic steel connecting bridge over the subway station building based on the principle of triangle stability. This solves the problem of installing the upper chord with oversized and overlong components in the air. Except for a horizontal beam on the upper part that needs to be adjusted according to the installation elevation of the component, the tire frames in other parts meet the installation requirements of the upper chord of the entire connecting bridge, thus realizing a rotatable tire frame, saving on-site construction materials, and ensuring the overall installation period of the steel connecting bridge.

[0044] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the utility model disclosed in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the concept of the utility model. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A temporary jig frame for continuous flow construction of a hyperbolic steel overpass bridge of a subway station building, characterized in that, The application relates to a double-curved steel bridge support structure, comprising: a type steel base installed on opposite sides of a platform plate of a bailey frame, each side of the platform plate is provided with two type steel bases arranged along the length direction of the platform plate; a support frame comprising two opposite columns and a plurality of cross beams connected between the two columns, the cross beams are arranged in a vertical direction, the two columns are arranged along the width direction of the platform plate, and a top layer of the cross beams and the two columns form a receiving groove for embedding an end part of an upper chord steel beam of the double-curved steel bridge; two diagonal pull rods arranged in a cross manner and connected to two support frames arranged at positions opposite to each other on opposite sides of the platform plate; a diagonal support rod supported between the end part of the column and the type steel base.

2. The continuous-flow construction temporary jig frame of the hyperbolic steel overpass bridge of the subway station building according to claim 1, characterized in that, The upper end of the diagonal pull rod is connected to the two columns of the support frame.

3. The continuous-flow construction temporary jig frame of the hyperbolic steel overpass bridge of the subway station building according to claim 1, characterized in that, The opposite sides of the column of a support frame are respectively provided with the diagonal support rods.

4. The continuous-flow construction temporary jig frame of the hyperbolic steel overpass bridge of the subway station building according to claim 1, characterized in that, The type steel base comprises: two long beams arranged in opposite directions along the length direction of the platform plate, and the column is vertically arranged on the long beams; a plurality of short beams connected to the two long beams.

5. The continuous-flow construction temporary jig frame of the hyperbolic steel overpass bridge of the subway station building according to claim 4, characterized in that, The lower end of the diagonal pull rod is connected to the intersection of the column and the long beam.

Images