Temporary support for hoisting steel box girder
Technical Field
The utility model belongs to the technical field of temporary supports, and particularly relates to a temporary support for hoisting a steel box girder.
Background
The steel box girder needs the temporary support as the basis when hoisting, has safe construction operation platform on the temporary support, therefore, the temporary support's demand lies in stable in structure, convenient to detach and installation, especially during steel box girder hoist and mount, need bear the steel box girder earlier by the temporary support, then make the steel box girder descend gradually, finally bear the steel box girder completely by the temporary support, under this requirement, the applicant is to improve the structural stability of current steel box girder and the cooperation of temporary support and steel box girder.
Disclosure of Invention
The utility model provides a temporary bracket for hoisting a steel box girder.
The utility model aims to provide a temporary support for hoisting a steel box girder, which consists of structures such as a pre-buried steel plate, an upright post, a distribution beam, a jack and the like.
In order to achieve the purpose of the utility model, the technical scheme of the utility model is as follows:
the temporary support for hoisting the steel box girder comprises a concrete foundation, wherein a plurality of stand columns are arranged at intervals on the concrete foundation, a distribution beam is arranged on the stand columns, a plurality of sandboxes are arranged on the distribution beam, a plurality of jacks are arranged on two sides of each sandbox, the jacks are arranged on the distribution beam, push rods of the jacks are upwards arranged, and tooth plates are arranged on the push rods of the jacks.
Further, an embedded steel plate is arranged in the concrete foundation, and the upright post is connected with the embedded steel plate.
Further, a supporting beam is arranged between the upright posts.
Further, the supporting beam comprises inclined struts which are obliquely arranged and transverse struts which are horizontally arranged, one end of each inclined strut is connected with one upright post, the other end of each inclined strut is connected with the other upright post, one end of each transverse strut is connected with one upright post, and the other end of each transverse strut is connected with the other upright post.
Further, a connecting plate is arranged on the upright post, and the diagonal bracing and the transverse bracing are fixedly connected with the connecting plate.
Further, the distribution beam is made of I-shaped steel.
Further, a plurality of reinforcing rib plates are arranged at the joint of the upright post and the embedded steel plate.
Further, a plurality of reinforcing rib plates are arranged at the joint of the upright post and the distribution beam.
Further, the reinforced net is arranged inside the concrete foundation, and the reinforced net is arranged at the top, the bottom and the side parts of the concrete foundation.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the concrete foundation is taken as a bearing foundation of the temporary support, the embedded steel plate in the concrete foundation is utilized to be fixed with the upright post, I-steel is arranged at the upper end of the upright post to be used as a distribution beam to distribute the weight of the steel box girder, the sandbox supports the bottom of the steel box girder, the jack is matched with the pressing plate to support the side wing of the steel box girder, the steel box girder stably falls on the supporting point of the upright post foundation and the supporting surface of the distribution beam as the foundation under the continuous descending of the push rod of the jack and the continuous sand releasing of the sandbox, the upright post, the distribution beam and the jack are assembled to form the temporary support, and after the steel box girder is fixed, the upright post, the distribution beam and the jack are disassembled, so that the temporary support is convenient to install and disassemble and has a stable structure.
2. The utility model installs the supporting beam between the upright posts, the supporting beam is based on the cross braces and the diagonal braces, the stability between the upright posts is increased, and the supporting beam and the upright posts are convenient to detach after the steel box girder is hoisted and fixed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
fig. 2 is a schematic diagram of the front view structure of the present utility model.
In the figure:
1. the concrete foundation comprises pre-buried steel plates, 2, upright posts, 3, connecting plates, 4, diagonal braces, 5, transverse braces, 6, distribution beams, 7, sandboxes, 8, jacks, 9, dental plates, 10, steel box beams, 11 and concrete foundations.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
In the present utility model, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. refer to an orientation or a positional relationship based on that shown in the drawings, and are merely relational terms, which are used for convenience in describing structural relationships of various components or elements of the present utility model, and do not denote any one of the components or elements of the present utility model, and are not to be construed as limiting the present utility model.
Example 1
The embodiment is a temporary bracket for hoisting a steel box girder, which is used for temporarily supporting the steel box girder 10, and has the main technical requirements that the temporary bracket is convenient to install and detach and has a stable structure, and comprises a concrete foundation 11, wherein an embedded steel plate 1 is embedded in the concrete foundation 11, C25 concrete is adopted as concrete, in the embodiment, the width and the height of the concrete foundation 11 are 3500mm and 500mm, the length is determined according to the length of the temporary bracket, the range is 6000-17000mm, reinforcing steel meshes are arranged at the positions, which are 50mm away from the top surface, the bottom and the side surface, inside the concrete foundation 11, of the embedded steel plate 1 are embedded in the top surface of the concrete foundation 11, the steel plates are 500mm long and 500mm wide and 16mm high, a plurality of stand columns 2 are arranged at intervals are arranged on the concrete foundation 11, the stand columns 2 are connected with the embedded steel plate 1 in a bolt connection mode, the upright post 2 of the embodiment adopts more than 6 cylindrical hollow columns with the diameter of 325mm, the distance between the upright posts 2 is 2m in the longitudinal bridge direction, the distance between the transverse bridge and the upright posts 2 is 2.3-2.5m, the upright posts 2 are connected with the distribution beam 6 through bolts, in the embodiment, the connection part of the upright posts 2 and the embedded steel plate 1 is provided with a plurality of reinforcing rib plates, the connection part of the upright posts 2 and the distribution beam 6 is provided with a plurality of reinforcing rib plates, the stability of the connection part of the reinforcing upright posts 2, the embedded steel plate 1 and the distribution beam 6 is enhanced, the distribution beam 6 is I-shaped steel, the I-shaped steel structure of the distribution beam 6 also mainly plays the role of distributing the weight of the steel box beam 10, a plurality of sand boxes 7 are arranged on the distribution beam 6, a plurality of jacks 8 are arranged on two sides of the sand boxes 7, the jacks 8 are fixedly arranged on the distribution beam 6 through bolts, the push rods of the jacks 8 are upwards arranged, the tooth plate 9 is installed on the push rod of the jack 8, and elevation is adjusted through the jack 8 in the embodiment.
This embodiment is for guaranteeing the stable structure of stand 2, install a supporting beam between stand 2, a supporting beam includes inclined stay 4 and horizontal bracing 5 of arranging of slope, the one end and a stand 2 of inclined stay 4 are connected, the other end and another stand 2 of inclined stay 4 are connected, the one end and a stand 2 of horizontal bracing 5 are connected, the other end and another stand 2 of horizontal bracing 5 are connected, specifically, the welding has connecting plate 3 on the stand 2, inclined stay 4, the fixed connection of horizontal bracing 5 and connecting plate 3, fixed connection mode includes welding and bolted connection, a supporting beam adopts channel-section steel structure, the material is Q235B, in addition, this embodiment erects safety construction operation platform on distributing beam 6, the railing of platform is formed by the angle steel welding, establish green mesh net in the railing outside, the plank or steel sheet are laid to the platform bottom, the cat ladder adopts GB 4053.1-2009's fixed steel straight ladder, the welding is in the stand 2 outside.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
While the foregoing description of the embodiments of the present utility model has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the utility model, but rather, it is intended to cover all modifications or variations within the scope of the utility model as defined by the claims of the present utility model.