CN218952751U

CN218952751U - Operation platform for hollow building construction

Info

Publication number: CN218952751U
Application number: CN202222918286.4U
Authority: CN
Inventors: 唐涛; 陈金果; 贾龙; 费世林; 蔡钦好
Original assignee: China Railway No 2 Engineering Group Co Ltd; China Railway Erju 5th Engineering Co Ltd
Current assignee: China Railway No 2 Engineering Group Co Ltd; China Railway Erju 5th Engineering Co Ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-05-02
Anticipated expiration: 2032-11-02

Abstract

The utility model relates to the technical field of bridge construction, in particular to an operation platform for hollow building construction, which comprises an operation platform body, wherein the operation platform body is fixed on the inner side wall of a hollow building. According to the utility model, the operation platform is fixed by depending on the inner side wall of the hollow building, so that the construction of a higher construction platform is performed, the construction mode of the structure is friendly to the limited space construction with variable cross section and large inclination angle, the environment adaptability is strong, the space limitation is small, and the problem that the floor stand in the prior art cannot be constructed from bottom to top along with the height of the hollow building with variable cross section, large inclination angle and small operation space is solved.

Description

Operation platform for hollow building construction

Technical Field

The utility model relates to the technical field of bridge construction, in particular to an operation platform for hollow building construction.

Background

The building field is rapidly developed, and more ultrahigh buildings are appeared. In the ultra-high thin wall hollow building construction, the structure has the characteristics of small construction space, inclined building and higher height, and the common floor support cannot freely change along with the section change of the structure under the condition, because the inclined building can necessarily lead the floor support erected by the ground to be inclined, but the stability of the support structure is greatly influenced; in addition, the high building is required to have a relatively high and wide support structure, and the stability of the support can be influenced, so that the existing floor type support cannot well meet the construction requirement, and under the condition, the construction difficulty is high and the operation is complex.

Disclosure of Invention

The utility model aims at: the operation platform for hollow building construction is provided for solving the problems that a floor type support in the prior art cannot be sequentially increased from bottom to top to set up a construction platform in the inner space of a thin-wall building with gradually changed cross section, small operation space and large building inclination angle.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

an operation platform for hollow building construction comprises an operation platform body, wherein the operation platform body is fixed on the inner side wall of a hollow building. According to the utility model, the operation platform is fixed by depending on the inner side wall of the hollow building, so that the construction of a higher construction platform is performed, the construction mode of the structure is friendly to the limited space construction with variable cross section and large inclination angle, the environment adaptability is strong, the space limitation is small, and the problem that the floor stand in the prior art cannot be constructed from bottom to top along with the height of the hollow building with variable cross section, large inclination angle and small operation space is solved. The operation platform body should be capable of supporting construction personnel.

The operation platform body can be presented in a plate structure form, a lever beam structure form or a combination structure form of the two structure forms, and the operation platform body is not limited to the common structure form.

Preferably, the operation platform further comprises an embedded part fixed on the inner side wall of the hollow building, and the embedded part is detachably connected with the operation platform body. Therefore, the mounting and dismounting are convenient and quick, and the damage to the structure of the thin-wall building can be avoided, so that the structural strength is reduced, and the repeated utilization of the operation platform is facilitated.

Preferably, the operation platform body comprises at least two pairs of support units, each pair of support units comprises two support units, the two support units are respectively and fixedly installed on two inner side walls of the hollow building, and the two support units of each pair are connected through a bearing beam; each supporting unit comprises a fixed steel plate which is fixedly connected with the embedded part and used for fixing the operation platform body on the inner side wall of the hollow building. Through setting up at least two pairs of supporting elements and being used for building construction platform, stability is better, both can set up side by side (parallel/intersection is the contained angle) between every supporting element in order to lay the dull and stereotyped in the coplanar, also can the staggered arrangement of different faces, the balanced stability and the safety that the constructor stood of being convenient for can. After each pair of supporting units are disassembled, the operation platform which can be repeatedly utilized to other section sizes can be built by selecting a mode of cutting and fixing the steel plates.

The bearing beam can be an integrally formed component or can be formed by splicing and connecting split components; the fixed steel plate can be of a flat plate structure, and also can be an L-shaped steel plate or a square plate and the like, so that the fixed steel plate is convenient to attach and fix on the inner side wall of a building, and is also convenient to connect with a force transmission structure of the spandrel girder.

Preferably, the spandrel girder comprises a first bearing section and a second bearing section, the first bearing section is detachably connected with the second bearing section, the first bearing section is fixedly connected with one supporting unit in the pair of supporting units, and the second bearing section is correspondingly and fixedly connected with the other supporting unit in the pair of supporting units. The bearing beam is conveniently disassembled and hoisted into a limited space with a variable cross section, so that field installation is realized, the space between the side wall positions of the current installation is adapted, and the construction is convenient. For example, one end of the first bearing section can be fixedly connected with one of the paired support units in a welding or bolting, clamping or other mode, the opposite end of the second bearing section is fixedly connected with the other paired support unit in a similar mode, and the butt joint ends of the first bearing section and the second bearing section are assembled together in a bolting, clamping or sliding mode; therefore, when the supporting unit at one end is in a state to be installed, the length of the spandrel girder is conveniently adjusted according to the current side wall construction position.

As other possible embodiments, the first bearing section/second bearing section may be square steel, channel steel, i-steel, angle steel, etc., the first bearing beam section and the second bearing beam section may be in the same structural form, such as angle steel-angle steel, square steel-square steel, etc. which are arranged in a staggered or overlapping manner, or may be in different steel types, such as the first bearing section adopts square steel, and the second bearing section adopts one or two i-steel/channel steel arranged in parallel.

Preferably, the first bearing section and the second bearing section are square steel members with large supporting surfaces, the butt ends of the first bearing section are adaptively nested in the second bearing section and can stretch out and draw back, and the first bearing section and the second bearing section are connected through bolts. The utility model adopts the square steel member with telescopic length as the spandrel girder, has large supporting surface, high strength and rigidity, and is convenient, safer, more reliable and stable in construction.

Preferably, the supporting unit further comprises a stiffening plate, wherein the stiffening plate is vertically arranged on the fixed steel plate and used for supporting the spandrel girder, so that the structural strength and stability are improved.

Preferably, the support unit further comprises a support beam, the support beam cantilever is arranged on the fixed steel plate, and the support beam is positioned on the top of the stiffening plate. The supporting beam is used for supporting the spandrel girder, which is beneficial to improving the structural strength and reducing the deflection deformation of the spandrel girder. The support beam can be cantilever-mounted in a manner of welding, clamping, embedded assembly or bolt connection.

Preferably, the embedded part adopts a taper bolt component and comprises an embedded plate, a high-strength screw rod and taper nuts, wherein the embedded plate and the taper nuts are respectively in threaded connection with two ends of the screw rod, the high-strength screw rod can penetrate through the taper nuts and extend out of a concrete template or a connected fixed steel plate and then are pre-fastened and fixed through the nuts, or the whole embedded part and the template or the fixed steel plate are fixedly connected together by adopting a mode of fastening the taper nuts, so that the upper load of a spandrel girder on the fixed steel plate is transferred to a building. The embedded part is beneficial to ensuring the structural stability of the operation platform, does not influence the structural strength of a building, and after the operation platform is disassembled, the hole reserved at the conical nut can be smoothed by filling concrete, so that the appearance is attractive.

Preferably, all spandrel girders are arranged on the same plane in parallel, at least two distribution girders are arranged at the top of the spandrel girders, and the distribution girders and all spandrel girders are arranged in a staggered way, so that the integrity of the operation platform is improved, and the bearing strength of the construction platform is improved.

Preferably, the distribution beam is a square steel member, and has good stability and large bearing surface.

Preferably, the top of the distribution beam is laid with a standing board.

Preferably, all the fixed steel plates positioned on the inner side wall of the same side of the hollow building in the operation platform body are integrally formed, and the operation platform can also be constructed in the hollow building with variable cross section, large inclination angle and small operation space.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. the operation platform for hollow building construction provided by the utility model is friendly to construction in a limited space with a variable section and a large inclination angle, has strong environmental adaptability and small space limitation, and solves the problem that the floor stand in the prior art cannot be constructed from bottom to top along with the height of a hollow building with a variable section, a large inclination angle and a small operation space.

2. The operation platform for hollow building construction provided by the utility model is simple to operate, is firmly fixed, and can effectively improve the construction efficiency of hollow buildings and ensure the construction safety.

3. The operation platform for hollow building construction provided by the utility model can be dismantled for reuse after the engineering is completed, has no damage to the building, has little influence on the quality and appearance of the concrete structure, and has low economic cost.

Drawings

Fig. 1 is a cross-sectional view of the construction operation platform in the hollow column of example 1.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is an enlarged view of a portion B in fig. 1.

Fig. 4 is an elevation view of the operator's platform installed in a hollow tower.

Fig. 5 is a front view of the supporting unit in embodiment 1.

Fig. 6 is a left side view of fig. 5.

Icon: 1-a spandrel girder; 11-bearing segment one; 12-a second bearing section; 2-fixing a steel plate; 3-stiffening plates; 4-supporting beams; 5-a distribution beam; 6-standing board; 7-embedding parts; 71-embedding plates; 72-screw; 73-cone nut; 74-fastening bolts; 8-tower column.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

An operation platform for hollow building construction comprises an operation platform body, wherein the operation platform body is fixed on the inner side wall of a hollow building.

Through relying on the inside wall of hollow building to fix operating platform to this is put up of higher construction platform, and this kind of structure is put up the mode and is friendly to the limited space construction that the cross-section is changed, the inclination is big, and environmental suitability is strong, space restriction is little, has solved the unable problem of constructing from bottom to top along with the height of the hollow building of variable cross-section, big inclination, little operating space of prior art floor frame. The operation platform body should be capable of supporting construction personnel.

Specifically, as shown in fig. 1-6, the operation platform in this embodiment further includes an embedded part 7 fixed on the inner side wall of the hollow building, and the embedded part 7 can be detachably connected with the operation platform body, so that the operation platform is easy to detach and install. As shown in fig. 2, the embedded part 7 includes an embedded plate 71, a high-strength screw 72 and a cone nut 73 (also called a climbing cone), and the embedded plate 71 and the cone nut 73 are respectively in threaded connection with two ends of the high-strength screw 72. As shown in fig. 4 to 6, the operation platform body includes at least two pairs of support units, each pair of support units includes two support units for being respectively and fixedly installed on two inner side walls of the hollow building, the two support units of each pair are oppositely arranged and are connected through the spandrel girder 1. Each supporting unit comprises a fixed steel plate 2, and the fixed steel plate 2 is fixedly connected with an embedded part 7 to play a role in force transmission. The supporting unit further comprises a supporting beam 4 and a stiffening plate 3, the supporting beam 4 and the stiffening plate 3 are arranged on the fixed steel plate 2, one end of the supporting beam 4 is welded on the fixed steel plate 2 in a cantilever manner and used for supporting the spandrel girder 1, and the supporting beam 4 adopts channel steel; two adjacent edges of the stiffening plate 3 are respectively welded with the bottom surfaces of the fixed steel plate 2 and the supporting beam 4 vertically, and the stiffening plate 3 is provided with two or more stiffening plates and is distributed at intervals along the width direction of the channel steel. Further, the spandrel girder 1 comprises a first bearing section 11 and a second bearing section 12, the first bearing section 11 and the second bearing section 12 are made of square steel members with large and small sizes, the supporting surface is large, one end of the first bearing section 11 is welded on the fixed steel plate 2 on the corresponding side in a butt joint manner, the other end of the first bearing section 11 is nested in the butt joint end of the second bearing section 12 in a butt joint manner and is fixedly connected in a butt joint manner by adopting a plurality of bolts, and the other end of the second bearing section 12 is welded on the fixed steel plate 2 on the corresponding side in a butt joint manner; the spandrel girder 1 adopts the segmental type to assemble the structure, when the supporting unit of one end is in waiting the installation state, the length of the spandrel girder 1 is adjusted according to current lateral wall construction position to the convenience like this, and the convenience is disassembled and is transported in the limited space of variable cross section, and the suitability is good. The support beam 4 and the stiffening plate 3 at the bottom of the spandrel girder 1 are beneficial to ensuring the support strength of upper load and preventing the spandrel girder 1 from flexural deformation, so that the structure is more reliable and stable.

When the support is installed, the embodiment adopts a structure form that a plurality of pairs of support units are arranged on the same plane side by side. Further, distributing beams 5 are arranged at intervals at the tops of the supporting beams 4 arranged side by side, the distributing beams 5 are uniformly distributed, and the distributing beams 5 are square steel members; a layer of wood pattern is paved on the top of the distribution beam 5 to serve as a standing board 6, so that construction staff can stand and rest construction equipment conveniently. The size of the standing board 6 should be as consistent as possible with the cross-sectional size of the current height position so as not to drop things.

The embodiment takes the construction of a variable cross section and an ultra-high cable tower column 8 of a large-span cable-stayed bridge as an example. The angle between the tower 8 and the vertical is about 16.5 deg.. During construction, before pouring the concrete of the tower column 8, the height of the construction platform and the fixed position of the spandrel girder 1 are designed according to the structural shape, and the installation number and the spacing of the spandrel girder 1 are determined according to the construction load size and the specification requirement, and are marked on a template. The corresponding positions of the templates are provided with holes, two conical nuts 73 meeting the stress requirement are arranged on the inner sides of the templates to serve as embedded parts 7, and the number of bolt intervals is strictly controlled according to the design requirement. The outside of the template is connected with a cone nut 73 through a fastening bolt 74 matched with the model, and the whole embedded part 7 is firmly connected with the template.

And prefabricating the concrete outside components of the construction platform in a special processing field. The fixed steel plate 2 is provided with holes and welded with positioning channel steel (namely a supporting beam 4), and the size and the distance of the holes are required to meet the matching requirements of the diameters and the distances of the fastening bolts 74. And the square steel (namely the spandrel girder 1) is fed according to the maximum section, and proper holes are drilled on the butt joint parts of the large square steel and the small square steel according to the slope rate of the structure and the height of the construction section, so that the connection and the fixation of the large square steel and the small square steel are facilitated.

After the pouring of the first section of the concrete of the tower column is completed, the mould is removed, each prefabricated semi-finished product is hoisted to the position of the embedded part 7 on the outer side of the concrete, the fixed steel plate 2 is connected and fixed by the embedded part 7, the square steel (namely the spandrel girder 1) is welded and bolted, and an operation platform is erected for construction. And after the pouring of the second section of the concrete is completed and the formwork climbs to the next section (climbing formwork), an operation platform is formed in the same manner. The operation platform formed by the previous section can be removed according to the working condition requirement, and the concrete construction of the next section is repeatedly utilized; after the operation platform is removed, the hollow of the cone nut 73 remains in the concrete structure, and the concrete surface is smoothed by cement mortar with the same label, so that the appearance and quality of the concrete are not affected.

According to the embodiment, the embedded part 7 is fixed on the upper section in advance, one steel plate is respectively fixed on the surfaces of the opposite side walls of the concrete based on the embedded part 7, square steel with different sizes is welded at the centers of the two corresponding steel plates, the square steel with the large diameter is sleeved into the square steel with the small diameter to form the platform spandrel girder 1, and square timber (namely the distribution girder 5) and a wood template (namely the standing plate 6) are erected on the spandrel girder 1 to form a construction operation platform. The device of the operation platform is simple to operate, firm in fixation and capable of effectively improving the construction efficiency and the construction safety of the tower column 8. The operation platform can be dismantled for repeated use after the engineering is completed, and large steel plates are not processed; after the cone nuts 73 of each section are removed, the hollow holes of the residual cone nuts 73 can be used for repairing the concrete surface by cement mortar, so that the influence on the concrete structure is small, the cost of the treatment mode is low, and the efficiency is high. The embodiment provides an effective scheme aiming at the erection of the construction platform at the inner side of the inclined cable tower, particularly the erection of the construction platform of the inner space of various thin-wall buildings with gradually changed sections, small operation space and large building inclination angles, and solves the problems that the conventional floor stand platform is complex in operation, cannot adapt to the building with large inclination angles, is difficult to adapt to the variable-section platform and the like.

Example 2

The embodiment also provides an operation platform for hollow building construction, and compared with embodiment 1, the difference of the embodiment mainly lies in: all the fixed steel plates 2 positioned on the inner side wall of the same side of the hollow building in the operation platform body are integrally formed. The construction in the hollow building with variable cross section, large inclination angle and small operation space can be realized, but the construction in the hollow building with the same cross section size is more suitable.

It should be noted that the operation platform bodies in

embodiments

1 and 2 may be fixedly connected to the inner side wall of a side of the hollow building, or two or more inner side walls may be fixedly connected at the same time, and even distributed at different height positions within a certain concrete segment range, which is not limited to the above-mentioned exemplary arrangement mode.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. An operation platform for hollow building construction is characterized by comprising an operation platform body, wherein the operation platform body is fixed on the inner side wall of a hollow building;

the embedded part (7) is fixed on the inner side wall of the hollow building, and the embedded part (7) is detachably connected with the operation platform body;

the operation platform body comprises at least two pairs of supporting units, and the two supporting units of each pair are connected through a spandrel girder (1); each supporting unit comprises a fixed steel plate (2), and the fixed steel plates (2) are fixedly connected with the embedded parts (7).

2. An operating platform for hollow building construction according to claim 1, characterized in that all the fixed steel plates (2) on the inner side walls on the same side of the hollow building are integrally formed.

3. An operating platform for hollow building construction according to claim 1, characterized in that the load-bearing beam (1) comprises a first load-bearing section (11) and a second load-bearing section (12), the first load-bearing section (11) being detachably connected to the second load-bearing section (12), the first load-bearing section (11) being fixedly connected to one of the pair of support units, the second load-bearing section (12) being correspondingly fixedly connected to the other of the pair of support units.

4. An operating platform for hollow building construction according to claim 3, characterized in that the first (11) and second (12) bearing segments are square steel members, the butt ends of the first (11) bearing segments being adapted to nest within the second (12) bearing segments, the first (11) and second (12) bearing segments being bolted.

5. An operating platform for hollow building construction according to claim 1, characterized in that the supporting unit further comprises stiffening plates (3), the stiffening plates (3) being arranged vertically on the fixed steel plate (2), the stiffening plates (3) being used for supporting the spandrel girder (1).

6. An operating platform for hollow building construction according to claim 5, characterized in that the support unit further comprises a support beam (4), the support beam (4) being cantilever-mounted on the fixed steel plate (2), the support beam (4) being located on top of the stiffening plate (3).

7. An operating platform for hollow building construction according to any of claims 1-6, characterized in that all the spandrel girders (1) are arranged in parallel on the same plane, the top of the spandrel girders (1) is provided with at least two distribution girders (5), the distribution girders (5) being arranged in a staggered manner with respect to all the spandrel girders (1).

8. An operating platform for hollow building construction according to claim 7, characterized in that the top of the distribution beam (5) is laid with a standing board (6).