CN219731699U - Integral dismounting device for underpinning type bracket unit - Google Patents

Abstract

The utility model relates to an integral dismantling device for a lower bearing type support unit, which comprises two bearing beams and two rows of rope penetrating pipes which are poured in a cast-in-situ bridge deck and distributed along a longitudinal bridge direction, wherein the same row of rope penetrating pipes are provided with two rope penetrating pipes and distributed along a transverse bridge direction, four slings correspondingly penetrate through the four rope penetrating pipes one by one and are connected to two ends of the two bearing beams one by one, a plurality of distribution beams are paved on the bearing beams, the lower bearing type support unit is placed on the distribution beams when in use, and the upper ends of each sling are respectively connected together by a winch supported on the cast-in-situ bridge deck. The utility model aims to provide a whole dismantling device for a lower support type bracket unit, which solves the problem that the lower support type bracket unit needs to be dismantled at high altitude.

Description

Integral dismounting device for underpinning type bracket unit

Technical Field

The utility model relates to the technical field of bridge construction, in particular to a device for integrally dismantling a lower bearing type bracket unit.

Background

The wet joint of the cast-in-situ bridge deck of the steel-concrete composite beam is conventionally constructed by adopting a bracket method or a lower bearing type hanging die method. The conventional hanging die method is to separately arrange supporting seats on the tops of two adjacent steel box girders, arrange transverse hanging girders between the two opposite supporting seats, arrange two or more hanging rods on the transverse hanging girders, and install wet joint cast-in-situ bearing girders, distribution girders and templates (the wet joint cast-in-situ bearing girders, the distribution girders and the templates are collectively called as a lower support unit, and the parts for fixing the lower support unit are called as a suspension system) at the lower ends of the hanging rods, so as to provide reliable and stable support for wet joint cast-in-situ. However, due to the large storage of the beam top transverse hanging beam, the mechanized integral construction of the cast-in-situ bridge deck is affected, the flatness quality control of the bridge deck is further affected, and the underpinning type bracket unit needs to be removed at high altitude.

In order to solve the problem of cast-in-place concrete integrally pouring of the bridge deck caused by the arrangement of the beam top transverse hanging beam in the suspension system, a lower bearing type supporting template system of the buried base appears in engineering, namely, the suspension system of the lower bearing type supporting frame unit is slightly lower than the elevation of the bridge deck, the use of bridge deck concrete mechanized paving and leveling equipment is not affected, the bridge deck flatness and the construction efficiency are better improved, and the problem of high-altitude dismantling required by the lower bearing type supporting frame unit cannot be solved.

Disclosure of Invention

The utility model aims to provide a whole dismantling device for a lower support type bracket unit, which solves the problem that the lower support type bracket unit needs to be dismantled at high altitude.

The technical problems are solved by the following technical scheme: the utility model provides a lower bearing type support unit wholly demolishs device, lower bearing type support unit is located the below of cast-in-place bridge floor, its characterized in that includes two spandrel girders and pours two rows of reeving pipes that distribute along the longitudinal bridge direction in the cast-in-place bridge floor, and same row reeving pipe has two reeving pipes and distributes along the transverse bridge direction, four slings pass four reeving pipes after one-to-one and connect in one-to-one at two spandrel girders's both ends, have laid a plurality of distribution beams on the spandrel girders, during the use lower bearing type support unit is shelved on the distribution beam, and the upper end of each hoist cable is respectively same to support the hoist engine link together on the cast-in-place bridge floor. When the support device is used, a cast-in-place bridge deck is poured through the suspension system in combination with the lower support type support unit to form a pipe, the pipe is embedded in the cast-in-place bridge deck, four slings penetrate through four rope penetrating holes after construction of the cast-in-place bridge deck, the four slings are connected with a bearing beam placed on the ground, the bearing beam and the first distribution beam are lifted to support the lower support type support unit through a winch, the suspension system is removed to enable the lower support type support unit to be supported through the distribution beam, then the winch is released to enable the slings to droop, the bearing beam is placed on the ground to enable the lower support type support unit to be moved to the ground, and finally the lower support type support unit is detached or recycled. The design of the utility model ensures that the lower bearing type bracket unit can be removed by moving the ground without overlapping high-altitude removal.

Preferably, the spandrel girder is distributed along a longitudinal bridge.

Preferably, the length of the spandrel girder is four meters, the two spandrel girders are parallel, and the distance between the two spandrel girders is 1.5 meters.

Preferably, the slings are steel cables, and the spandrel girder and the distributing girder are both channel steel structures.

Preferably, the rope penetrating pipe is a PVC pipe.

Preferably, the lower support bracket unit is provided with a rope threading hole for a sling to pass through. The utility model is convenient to install.

Preferably, the winch is supported on the cast-in-situ bridge deck through a support frame, the support frame comprises two door frames, a plurality of side connecting rods for connecting two ends of the two door frames together and a suspension beam connected to the two door frames, and the winch is suspended on the suspension beam. The winch is convenient to fix.

Preferably, the suspension beam is placed on the portal frame, the hoist is provided with a hanging ring, and the suspension beam is arranged in the hanging ring in a penetrating manner. The winch is convenient to remove from the supporting frame.

Preferably, the lower end of the sling passes through the lower part of the spandrel girder, then bends upwards and then bends downwards to form a left folding part, the folding part is arranged in a U-shaped elbow in a penetrating way, two ends of the elbow are simultaneously arranged on the pressing block in a penetrating way, locking nuts are connected to the two ends of the elbow in a threaded way, and the locking nuts on the two ends of the elbow are simultaneously pressed on the pressing block to enable the pressing block to be matched with the elbow to clamp the folding part. The connection between the sling and the spandrel girder is reliable and the dismounting is convenient.

The beneficial effects of the utility model are as follows: the lower bearing type bracket unit can be integrally lowered and removed, the working procedure is simplified, the work efficiency is improved, and particularly, the integral hoisting installation can be carried out in the same order when the lower bearing type bracket unit is used in a turnover manner; secondly, the traditional beam bottom high-altitude demolding operation is converted into bridge floor upper and lower ground operation, so that high-altitude operation is avoided, and construction safety is greatly ensured; and the unloading device adopts conventional section steel and small-sized winch equipment, can utilize construction leftover materials to process the unloading frame, is low in investment and recyclable, is economical, energy-saving and environment-friendly, and has good economic and social benefits.

Drawings

FIG. 1 is a schematic view of the present utility model in use;

FIG. 2 is an enlarged schematic view of a support frame;

FIG. 3 is an enlarged schematic view of the connection of the sling and the bolster;

FIG. 4 is a schematic sectional view of A-A of FIG. 3.

In the figure: the cast-in-situ bridge floor comprises a lower bearing type bracket unit 1, a cast-in-situ bridge floor 2, a spandrel girder 3, a distribution girder 4, a supporting frame 5, a winch 6, a portal frame 7, a side connecting rod 8, a suspension girder 9, a lifting ring 10, a superposition part 11, an elbow 12, a pressing block 13, a locking nut 14 and a sling 15.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, a lower support bracket unit is integrally removed, and a lower support bracket unit 1 is positioned below a cast-in-place deck 2. Comprises two spandrel girders 3 and two rows of rope penetrating pipes (not shown in the drawing) which are poured in the cast-in-situ bridge deck and distributed along the longitudinal bridge direction, wherein the rope penetrating pipes are PVC pipes. The same row of rope threading pipes are provided with two rope threading pipes and distributed along the transverse bridge direction, and four slings 15 penetrate through the four rope threading pipes in a one-to-one correspondence manner and are connected to the two ends of two spandrel girders in a one-to-one correspondence manner, and a plurality of distribution girders 4 are paved on the spandrel girders. The upper end of each sling is connected with a hoist 6 which is supported on the cast-in-situ bridge deck by the same supporting frame 5. The spandrel girder is distributed along the longitudinal bridge direction. The length of the spandrel girder is four meters, the two spandrel girders are parallel, and the distance between the two spandrel girders is 1.5 meters. The sling is a steel cable, and the spandrel girder and the distributing girder are both channel steel structures. The lower support bracket unit is provided with a rope threading hole for the sling to pass through. The support frame comprises two door frames 7, a plurality of side connecting rods 8 connecting the two ends of the two door frames together and a suspension beam 9 connected to the two door frames. The suspension beam is placed on the portal frame, the hoist is provided with two hanging rings 10, and the suspension beam is arranged in the hanging rings in a penetrating manner. The lower extreme of hoist cable passes the below of spandrel girder and upwards buckles the back and then buckle downwards and form left portion of closing 11, and the coincide portion wears to establish in the elbow 12 of "U" font, and two ends of elbow wear to establish simultaneously on pressing block 13, all threaded connection has lock nut 14 on two ends of elbow, and lock nut on two ends of elbow presses simultaneously and presses on the briquetting makes pressing block cooperation elbow clamping coincide portion.

The process for dismantling the lower bearing type bracket unit by the utility model comprises the following steps: the cast-in-place bridge deck is poured through a suspension system in combination with a lower bearing type support unit to form a pipe, the pipe is embedded in the cast-in-place bridge deck, four slings penetrate through four rope holes after the construction of the cast-in-place bridge deck is completed and then are connected with a bearing beam on the ground, then a winch is supported on the cast-in-place bridge deck through a support frame, the four slings are connected with the four winches, the lower end of the four slings penetrates through the rope holes and then are connected with the bearing beam, the bearing beam and the distribution beam are lifted to support the lower bearing type support unit through the winch, the suspension system is removed to support the lower bearing type support unit through the distribution beam, then the slings are loosened to enable the slings to sag, the bearing beam is placed on the ground to enable the lower bearing type support unit to be moved to the ground, and finally the lower bearing type support unit is removed or recycled.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a lower bearing type support unit wholly demolishs device, lower bearing type support unit is located the below of cast-in-place bridge floor, its characterized in that includes two spandrel girders and pours two rows of reeving pipes that distribute along the longitudinal bridge direction in the cast-in-place bridge floor, and same row reeving pipe has two reeving pipes and distributes along the transverse bridge direction, four slings pass four reeving pipes after one-to-one and connect in one-to-one at two spandrel girders's both ends, have laid a plurality of distribution beams on the spandrel girders, during the use lower bearing type support unit is shelved on the distribution beam, and the upper end of each hoist cable is respectively same to support the hoist engine link together on the cast-in-place bridge floor.

2. A unit removal apparatus as set forth in claim 1, wherein,

the spandrel girder is distributed along the longitudinal bridge direction.

3. A whole dismounting device for a underpinning type stand unit as claimed in claim 2, wherein,

the length of the spandrel girder is four meters, the two spandrel girders are parallel, and the distance between the two spandrel girders is 1.5 meters.

4. A undermount bracket unit overall removal apparatus as claimed in claim 1, 2 or 3 wherein said slings are steel cables and said bolster and distribution beams are of channel construction.

5. A whole dismounting device for a underpinning type support unit according to claim 1, 2 or 3, characterized in that the rope tube is a PVC tube.

6. A lower support unit overall dismantling device according to claim 1, 2 or 3, wherein the lower support unit is provided with a rope hole for a sling to pass through.

7. A whole dismounting device for a lower support frame unit according to claim 1, 2 or 3, characterized in that the hoist is supported on the cast-in-place deck by a support frame comprising two portal frames, a number of side connecting rods connecting the two ends of the two portal frames together and a suspension beam connected to the two portal frames, the hoist being suspended on the suspension beam.

8. The integrated dismounting device of claim 7, wherein,

the hanging beam is placed on the portal frame, the hoist is provided with a hanging ring, and the hanging beam is arranged in the hanging ring in a penetrating manner.

9. A whole dismantling device for a lower support type bracket unit according to claim 1, 2 or 3, wherein the lower end of the sling is bent upwards after passing through the lower part of the bearing beam to form a superposed part, the superposed part is arranged in a U-shaped elbow in a penetrating way, two ends of the elbow are arranged on the pressing block in a penetrating way at the same time, locking nuts are connected to the two ends of the elbow in a threaded way, and the locking nuts on the two ends of the elbow are pressed on the pressing block at the same time so that the pressing block is matched with the elbow to clamp the superposed part.