CN215319414U - Pre-tensioned and post-tensioned common prefabricated beam pedestal device - Google Patents

Abstract

The utility model relates to a pre-tensioned and post-tensioned common precast beam pedestal device, which comprises a pedestal body and a supporting structure, wherein the pedestal body comprises a main platform, a post-tensioned end platform and a pre-tensioned beam set, the pre-tensioned beam set comprises a tensioning stressed side beam, a fixed end beam and a force application end beam, the force application end beam is provided with a tensioning device, and two ends of the tensioning stressed side beam are provided with abutting structures; the tensioning device comprises a telescopic cylinder, a sliding inner beam and a reverse tensioning traction rod, wherein a cylinder body of the telescopic cylinder is fixed on the force application end beam, and the sliding inner beam is in sliding fit with the inner side of the tensioning stressed edge beam; the top support structure comprises a top plate and triangular stress distribution ribs, the top plate is fixed at two ends of the tensioning stress side beam, and the triangular stress distribution ribs are welded between the top block and the side wall of the tensioning stress side beam. This prefabricated roof beam pedestal device of pretension and post-tensioned sharing can satisfy the prefabrication of pretension roof beam and post-tensioned roof beam simultaneously and use to application mode switches conveniently, is guaranteeing to support on the basis of intensity and stability simultaneously, has avoided large-scale basic concrete construction.

Description

Pre-tensioned and post-tensioned common prefabricated beam pedestal device

Technical Field

The utility model relates to the field of civil engineering and bridge construction equipment, in particular to a pre-tensioned and post-tensioned common precast beam pedestal device.

Background

Traditional precast beam pedestals are divided into post-tensioned precast beam pedestals and pre-tensioned precast beam pedestals according to different prestress treatment modes. The post-tensioned precast beam pedestal needs to bear the tension of a structure formed by concrete, so that stronger vertical supporting force is needed; the pretensioning precast beam pedestal needs to have stronger horizontal stress stability, so that the two pedestals have different base structures, and the application range is limited by the type of the precast beam. In addition, the two traditional precast beam pedestals need to be excavated to carry out concrete or pile construction, so that the cost is high, the construction quantity is large, and the flexibility is poor.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: overcome the restriction of traditional precast beam pedestal range of application, provide a precast beam pedestal device of pretension and post-tensioned sharing, it can satisfy the prefabrication of pretension roof beam and post-tensioned roof beam simultaneously and use to application mode switches conveniently, is guaranteeing simultaneously on the basis of support intensity and stability, has avoided large-scale basic concrete construction.

The pre-tensioned and post-tensioned common precast beam pedestal device comprises a pedestal body and a supporting structure, wherein the pedestal body is fixedly arranged above the supporting structure, the pedestal body comprises a main platform, a post-tensioned end platform and a pre-tensioned beam set, the post-tensioned end platform is arranged on two sides of the main platform, the pre-tensioned beam set is detachably arranged on the post-tensioned end platform, the pre-tensioned beam set comprises a tensioning stressed side beam, a fixed end beam and a force application end beam, a tensioning device is arranged on the force application end beam, and abutting structures are arranged at two ends of the tensioning stressed side beam; the tensioning device comprises a telescopic cylinder, a sliding inner beam and a tension reversing draw bar, wherein a cylinder body of the telescopic cylinder is fixed on the force application end beam, the sliding inner beam is arranged on the inner side of the tensioning stressed edge beam in a sliding mode, a plug rod of the telescopic cylinder penetrates through the force application end beam to be connected with the tension reversing draw bar, and the tension reversing draw bar is fixed on the sliding inner beam; the top support structure comprises a top plate and triangular stress distribution ribs, the top plate is fixed at two ends of the tensioning stress side beam, and the triangular stress distribution ribs are welded between the top support structure and the tensioning stress side beam.

In order to realize the quick installation and removal of the pre-tensioning beam set on the post-tensioning end beam and further realize the convenient and quick switching of the pre-tensioning beam and the pre-tensioning beam prefabrication application, the bottoms of the tensioning force-bearing side beam, the fixed end beam and the force application end beam are provided with screw holes, the post-tensioning end platform is provided with through holes matched with the screw holes in position, and the tensioning force-bearing side beam, the fixed end beam and the force application end beam are detachably connected and fixed on the post-tensioning end platform through strong bolts.

For under the prerequisite of concrete foundation construction not going on, realize the powerful and stable support to the pedestal body when post-tensioned beam is prefabricated, bearing structure includes supporting beam, board and distribution roof beam between the roof beam, and the board is mated formation between the roof beam is in supporting beam top, the distribution roof beam is in with supporting beam vertical direction equidistant laying in board top between the roof beam, main platform and post-tensioned end platform are mated formation to be fixed on the distribution roof beam.

For on the basis of guaranteeing supporter bottom intensity and stability, can adjust and revise bearing structure, the dismouting of being convenient for simultaneously is transported, a supporting beam is the I-steel roof beam, is connected with horizontal spacing connecting rod between a supporting beam, the dress is worn at a supporting beam's beam wall trompil at horizontal spacing connecting rod both ends to it has tensioning adjusting nut to screw joint in the beam wall, outside.

The pre-tensioned and post-tensioned common precast beam pedestal device overcomes the limitation of the application range of the traditional precast beam pedestal, can simultaneously meet the prefabrication application of a pre-tensioned beam and a post-tensioned beam, is convenient and fast in application mode switching, avoids large-scale foundation concrete construction on the basis of ensuring the supporting strength and stability, and is widely suitable for application in the construction of precast beam bodies in various pre-stress treatment forms.

Drawings

The utility model is further described by the pre-tensioned and post-tensioned precast beam pedestal device with reference to the accompanying drawings:

FIG. 1 is a schematic front plan view of the present pre-tensioned and post-tensioned precast beam skid apparatus;

FIG. 2 is a schematic left side plan view of the present pre-tensioned and post-tensioned precast beam skid mounting apparatus;

FIG. 3 is a top plan view of the present pre-tensioned and post-tensioned precast beam stand apparatus.

In the figure:

1-a table seat body, 2-a supporting structure, 3-a tensioning device, 4-a propping structure and 5-a strong bolt;

11-main platform, 12-post-tensioning end platform and 13-pre-tensioning beam group; 21-support beam, 22-inter-beam plate, 23-distribution beam; 31-telescopic cylinder, 32-sliding inner beam and 33-reverse tension bar; 41-top plate and 42-triangular stress distribution ribs;

131-tensioning stress side beams, 132-fixed end beams and 133-pre-force application end beams; 211-horizontal limit link, 212-tension adjusting nut.

Detailed Description

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "left", "right", "front", "back", "top", "bottom", "inner", "outer", etc., indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

The technical solution of the present invention is further described by the following specific examples, but the scope of the present invention is not limited to the following examples.

Embodiment 1: as shown in fig. 1 to 3, the precast beam pedestal device shared by pre-tensioning and post-tensioning comprises a pedestal body 1 and a support structure 2, wherein the pedestal body 1 is fixedly installed above the support structure 2, wherein the pedestal body 1 comprises a main platform 11, a post-tensioning end platform 12 and a pre-tensioning beam set 13, the post-tensioning end platform 12 is installed at two sides of the main platform 11, the pre-tensioning beam set 13 is detachably installed on the post-tensioning end platform 12, the pre-tensioning beam set 13 comprises a tensioning force-bearing side beam 131, a fixed end beam 132 and a force-applying end beam 133, a tensioning device 3 is arranged on the force-applying end beam 133, and abutting structures 4 are arranged at two ends of the tensioning force-bearing side beam 131; the tensioning device 3 comprises a telescopic cylinder 31, a sliding inner beam 32 and a tension reversing draw bar 33, wherein a cylinder body of the telescopic cylinder 31 is fixed on the force application end beam 133, the sliding inner beam 32 is arranged on the inner side of the tensioning force-bearing side beam 131 in a sliding mode, a plug rod of the telescopic cylinder 31 penetrates through the force application end beam 133 to be connected with the tension reversing draw bar 33, and the tension reversing draw bar 33 is fixed on the sliding inner beam 32; the top support structure 4 comprises a top plate 41 and triangular stress distribution ribs 42, the top plate 41 is fixed at two ends of the tensioning stress side beam 131, and the triangular stress distribution ribs 42 are welded between the top support structure 4 and the side wall of the tensioning stress side beam 131. Stretch-draw atress boundary beam 131, fixed end beam 132 and application of force end beam 133 bottom are opened there is the screw hole, open on the post-tensioned end platform 12 have with position assorted through-hole is seted up to the screw hole, stretch-draw atress boundary beam 131, fixed end beam 132 and application of force end beam 133 are realized through strong bolt 5 and are connected fixedly in the detachable of post-tensioned end platform 12. The device is used for realizing the quick installation and removal of the pre-tensioning beam set on the post-tensioning end beam, and further realizing the convenient and quick switching of the pre-tensioning beam and the post-tensioning beam prefabrication application.

Embodiment 2: the pre-tensioned and post-tensioned precast beam pedestal device comprises a support beam 21, an inter-beam plate 22 and a distribution beam 23, wherein the inter-beam plate 22 is paved above the support beam 21, the distribution beam 23 is paved above the inter-beam plate 22 at equal intervals in the direction vertical to the support beam 21, and the main platform 11 and the post-tensioned end platform 12 are paved and fixed on the distribution beam 23. On the premise of not constructing a concrete foundation, strong and stable support for the platform body is realized when the post-tensioned beam is prefabricated. The supporting beams 21 are I-shaped steel beams, horizontal limiting connecting rods 211 are connected between the supporting beams 21, two ends of each horizontal limiting connecting rod 211 are arranged in beam wall openings of the supporting beams 21 in a penetrating mode, and tensioning adjusting nuts 212 are screwed in the inner side and the outer side of each beam wall. On the basis of guaranteeing supporter bottom intensity and stability, can adjust and revise bearing structure, the dismouting of being convenient for simultaneously is transported. The remaining structure and components are as described in embodiment 1, and the description will not be repeated.

When in use: the post-tensioning platform base is used for performing structural tensioning after the precast beam is built with concrete in a template, so that the prefabrication of a post-tensioning beam body is realized; after the stressed side beam and the end beam structure are connected on the end platform, the end beam and the inner beam can be used for fixing and tensioning the steel bars or the steel strands, then the mould is hoisted and the concrete is concerned, and then the quick and convenient disassembly is carried out, namely the pre-tensioned beam body prefabrication is realized; the inner beam sliding design makes the tensioning direction stable, the bolt type is fixed, the rapid switching of the pre-tensioning application and the post-tensioning application is realized, the jacking structure design increases the tensioning stability and the jacking strength, the dispersed steel beam is supported to be laid, the excavation molding construction of concrete or pile column type foundations is not only saved, but also the disassembly and the assembly are convenient, and the convenient secondary application and the field structural adjustment are realized.

This precast beam pedestal device of pretension and post-tensioning sharing has overcome the restriction of traditional precast beam pedestal range of application, and it can satisfy the prefabrication of pretension roof beam and post-tensioning roof beam simultaneously and use to application mode switches conveniently, and on the basis of guaranteeing support intensity and stability, large-scale basic concrete construction has been avoided to the while, extensively is suitable for in the precast beam body construction of all kinds of prestressing force processing forms and uses.

The foregoing description illustrates the principal features, rationale, and advantages of the utility model. It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments or examples, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The foregoing embodiments or examples are therefore to be considered in all respects illustrative and not restrictive. The scope of the utility model is indicated by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (4)

1. The utility model provides a prefasten with prefasten precast beam pedestal device of sharing, characterized by: the platform comprises a platform body (1) and a supporting structure (2), wherein the platform body (1) is fixedly installed above the supporting structure (2), the platform body (1) comprises a main platform (11), a post-tensioning end platform (12) and a pre-tensioning beam set (13), the post-tensioning end platform (12) is installed on two sides of the main platform (11), the pre-tensioning beam set (13) is detachably installed on the post-tensioning end platform (12), the pre-tensioning beam set (13) comprises a tensioning stress side beam (131), a fixed end beam (132) and a force application end beam (133), a tensioning device (3) is arranged on the force application end beam (133), and abutting structures (4) are arranged at two ends of the tensioning stress side beam (131);

the tensioning device (3) comprises a telescopic cylinder (31), a sliding inner beam (32) and a reverse tensioning traction rod (33), a cylinder body of the telescopic cylinder (31) is fixed on the force application end beam (133), the sliding inner beam (32) is arranged on the inner side of the tensioning force-bearing side beam (131) in a sliding mode, a plug rod of the telescopic cylinder (31) penetrates through the force application end beam (133) to be connected with the reverse tensioning traction rod (33), and the reverse tensioning traction rod (33) is fixed on the sliding inner beam (32);

the top support structure (4) comprises a top plate (41) and a triangular stress distribution rib (42), the top plate (41) is fixed at two ends of the tensioning stress side beam (131), and the triangular stress distribution rib (42) is welded between the top support structure (4) and the side wall of the tensioning stress side beam (131).

2. The pretensioned and pretensioned common precast beam pedestal set according to claim 1, wherein: stretch-draw atress boundary beam (131), fixed end roof beam (132) and application of force end roof beam (133) bottom are opened there is the silk hole, open on post-tensioned end platform (12) have with position assorted through-hole is seted up to the silk hole, stretch-draw atress boundary beam (131), fixed end roof beam (132) and application of force end roof beam (133) are realized through powerful bolt (5) and are connected fixedly in the detachable of post-tensioned end platform (12) on.

3. A pretensioned and post-tensioned precast beam pedestal set according to claim 1 or 2, wherein: the supporting structure (2) comprises a supporting beam (21), an inter-beam plate (22) and a distribution beam (23), the inter-beam plate (22) is paved above the supporting beam (21), the distribution beam (23) is arranged above the inter-beam plate (22) in the vertical direction of the supporting beam (21) at equal intervals, and the main platform (11) and the post-tensioning end platform (12) are paved and fixed on the distribution beam (23).

4. A pretensioned and post tensioned common precast beam pedestal set according to claim 3 wherein: the supporting beams (21) are I-shaped steel beams, horizontal limiting connecting rods (211) are connected between the supporting beams (21), two ends of each horizontal limiting connecting rod (211) are arranged in beam wall openings of the supporting beams (21) in a penetrating mode, and tensioning adjusting nuts (212) are screwed in the inner side and the outer side of each beam wall.

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