Formwork-free and support-free construction structure of shallow silo overhead column wall beam plate

Abstract

The utility model provides a squat silo overhead layer column wall beam plate mold-free and support-free construction structure which is characterized in that the construction structure comprises a plurality of prefabricated columns, a plurality of prefabricated beams and a plurality of prefabricated plates, the prefabricated columns are arranged in an enclosed area of silo walls of a squat silo at intervals, and the prefabricated beams are arranged in the enclosed area of the silo walls of the squat silo at intervals. Each prefabricated column comprises a column body and a bracket fixed to the side face of the top of the column body, the multiple prefabricated beams are arranged in a grid shape, the two ends of each prefabricated beam are erected on the corresponding bracket, the edge of each prefabricated plate is erected on the corresponding prefabricated beam, and the prefabricated plates are laid on the enclosure face of the granary wall. The utility model has the advantages that the structure of the overhead layer of the squat silo is split into the prefabricated columns, the prefabricated beams and the prefabricated plates, the prefabricated columns, the prefabricated beams and the prefabricated plates are transported to the site to be assembled after being processed in a factory, and a support bent frame is not required to be erected in the assembling process of all the components and when concrete is poured into joints and overlapped parts, so that the construction cost is reduced; therefore, the formwork-free and support-free effect of the squat silo overhead column beam slab is achieved.

Description

Shallow circular warehouse with elevated floor, columns, walls, beams, and slabs – a formwork-free and unsupported construction structure. Technical Field

[0001] This utility model relates to the field of shallow circular silo construction technology, specifically to a construction structure for shallow circular silo with an elevated floor, columns, walls, beams, and slabs that requires no formwork or support. Background Technology

[0002] A shallow circular silo is a cylindrical grain silo with low walls. Its roof is conical with a large diameter and relatively low height. Grain typically enters the silo by gravity through an inlet at the top and is discharged from an outlet at the bottom. Shallow circular silos are mainly used for storing bulk materials such as grains and are widely used in grain storage and other fields. A raised floor is usually set up on the first floor of a shallow circular silo, and there are two traditional methods for this: one is to erect a formwork support frame and pour concrete in place; the other is to use a slipform as a formwork and pour concrete in place. Both methods require reserved areas on-site for material storage, processing, and concrete pump truck parking. Shallow circular silos are usually not standalone but clustered together, with small spacing and limited site space. Using a cast-in-place construction method would pose significant challenges to site planning and could even disrupt normal construction and transportation. Summary of the Invention

[0003] The purpose of this utility model is to address the shortcomings of the existing technology by providing a construction structure for the columns, walls, beams, and slabs of a shallow circular silo without formwork or support. By disassembling the structure of the shallow circular silo into three components—columns, beams, and slabs—which are processed in the factory and then transported to the site for assembly, no supporting frames are required during the assembly process or when pouring concrete at joints and overlapping parts. This achieves the goal of creating a shallow circular silo with columns, beams, and slabs without formwork or support.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A construction structure for a shallow circular silo with an open-plan column, wall, beam, and slab structure that requires no formwork or support is disclosed. The construction structure includes several precast columns, several precast beams, and several precast slabs. The precast columns are spaced apart within the enclosed area of ​​the silo wall. Each precast column includes a column body and corbels fixed to the side of the top of the column body. The precast beams are arranged in a grid pattern, with each end of each precast beam resting on a corbel. The edge of each precast slab rests on a precast beam, and the precast slabs cover the enclosed surface of the silo wall.

[0006] The precast beam has notches on both sides along its length, and the edge of the precast slab is located within the notches.

[0007] The top side of the column has bolt holes for mounting the bracket, and the bracket is detachably connected to the column by bolts and the bolt holes.

[0008] A sleeve is pre-embedded in the bottom of the column, and steel bars are pre-reserved on the foundation within the enclosed area of ​​the silo wall. The sleeve is fitted over the steel bars, and the sleeve is filled with grout.

[0009] The top surface of the column has a protruding first reinforcing bar.

[0010] The end face of the precast beam has a protruding second reinforcing bar, which is inserted into the area directly above the top surface of the column.

[0011] The precast beams include transverse precast beams and longitudinal precast beams, and the second reinforcing bars on the end faces of the transverse precast beams and the second reinforcing bars on the end faces of the longitudinal precast beams have a height difference.

[0012] At least some of the precast slabs are provided with unloading ports.

[0013] The precast slab is provided with reinforcing ribs on its side, and the reinforcing ribs extend to the area directly above the precast beam.

[0014] The construction structure also includes several arc-shaped beams, which are set on the top of the silo wall and spliced ​​into a ring. The end faces of some of the precast beams facing the arc-shaped beams are formed into arcs, and the precast beams with arc-shaped end faces are integrally formed with the corresponding arc-shaped beams.

[0015] The advantages of this utility model are: by disassembling the structure of the shallow circular silo elevated floor into three components—precast columns, precast beams, and precast slabs—which are processed in the factory and then transported to the site for assembly, the precast columns are equipped with corbels at the top to support the precast beams; the precast beams have recesses on both sides to support the precast slabs; the precast beams and slabs are combined with each other in the form of composite beams and slabs, using the lower half of the precast beams and slabs as supports for the upper cast-in-place parts. This eliminates the need for supporting frames during the assembly of all components and the pouring of concrete at the joints and composite parts, thus achieving formwork-free and supportless columns, beams, and slabs in the shallow circular silo elevated floor. Attached Figure Description

[0016] Figure 1 is a structural schematic diagram of the precast column in this utility model;

[0017] Figure 2 is a structural schematic diagram of the precast beam in this utility model;

[0018] Figure 3 is a structural schematic diagram of the construction structure in this utility model;

[0019] Figure 4 is a structural schematic diagram of the precast column and precast beam joint in this utility model;

[0020] Figure 5 is a structural schematic diagram of the precast beam and precast slab joint in this utility model;

[0021] Figure 6 is a schematic diagram of the structure of the precast slab in this utility model;

[0022] Figure 7 is a structural schematic diagram of the integrally formed arc beam and the precast beam in this utility model;

[0023] Figure 8 is a schematic diagram of the construction process of the prefabricated structure in this utility model. Detailed Implementation

[0024] The features and other related features of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate the understanding of those skilled in the art:

[0025] As shown in Figure 1-8, the markings in the figure represent: precast column 1, precast beam 2, precast slab 3, silo wall 4, first reinforcing bar 5, curved beam 6, column 11, corbel 12, and unloading port 31.

[0026] Example: As shown in Figures 1-8, this example relates to a construction structure for a shallow circular warehouse with column, wall, beam and slab structure that is formwork-free and unsupported, used for constructing a shallow circular warehouse with an open floor. This construction structure can eliminate the need for formwork and additional support. The construction structure includes several precast columns 1, several precast beams 2 and several precast slabs 3. Several precast columns 1 are spaced apart within the enclosure area of ​​the shallow circular silo wall 4. The outermost edge precast columns 1 are closely attached to the silo wall 4. Each precast column 1 includes a column body 11 and a bracket fixed to the side of the top of the column body 11. That is, each side of the top of the column body 11 of the precast column 1 that is not closely attached to the silo wall 4 is provided with a bracket, while the top of the column body 11 of the precast column 1 that is closely attached to the silo wall 4 can be configured with the number of brackets according to the number of precast beams 2 that need to be supported. For example, only one bracket can be provided to support one end of a precast beam 2. The precast beams 2 are then erected on the precast columns 1. Specifically, several precast beams 2 are arranged in a grid pattern, with each end of each precast beam 2 resting on a bracket. The edge of each precast slab 3 rests on the precast beam 2, and the precast slab 3 covers the enclosure surface of the silo wall 4.

[0027] Therefore, the entire elevated floor of the shallow circular silo is divided into precast columns 1, precast beams 2, and precast slabs 3. This allows these components to be manufactured in the factory, transported to the site, and then hoisted and assembled. The corbels at the top of the precast columns 1 can support the precast beams 2; the precast slabs 3 can be placed on the precast beams 2; and the precast beams 2 and slabs 3 are in the form of composite beams and slabs, using the lower precast beams and slabs as supports for the upper cast-in-place portion. Through these arrangements, no supporting scaffolding is needed during the assembly of all components, or when pouring concrete at joints and composite sections, thus achieving formwork-free and supportless construction of the columns, beams, and slabs of the elevated floor of the shallow circular silo.

[0028] In some embodiments, recesses are provided on both sides of the precast beam 2 along its length, and the edges of the precast slab 3 are located within the recesses. By providing recesses on both sides of the precast beam 2, the precast slab 3 can be easily positioned and placed, and the structural strength can be enhanced after concrete is poured on top.

[0029] In other embodiments, bolt holes for mounting brackets are provided on the side of the top of the column 11. The brackets are detachably connected to the column 11 via bolts and bolt holes. By making the brackets detachable, once the upper composite cast-in-place concrete portion is cast and the precast beam 2, precast column 1, and precast slab 3 form a whole, the brackets can be removed for use in the construction of the next shallow circular silo elevated floor. In this embodiment, the "top" of the column 11 can refer to the portion of the column 11 near its top surface.

[0030] In this embodiment, a sleeve is pre-embedded in the bottom of the column 11, and reinforcing bars are pre-reserved on the foundation within the enclosed area of ​​the shallow circular silo wall 4. The sleeve is fitted over the reinforcing bars, and the sleeve is filled with grout. That is to say, before inserting the precast column 1, the ground within the enclosed area of ​​the shallow circular silo wall 4 needs to be compacted and treated, and reinforcing bars need to be pre-embedded. The positions of the pre-embedded reinforcing bars correspond one-to-one with the distribution positions of the precast column 1 to be inserted. Thus, when hoisting and placing the precast column 1, the pre-embedded sleeve at the bottom of the column 11 can be used to easily align the pre-embedded reinforcing bars. Then, grout is injected into the sleeve. After the grout solidifies, the precast column 1 and the reinforcing bars pre-reserved on the foundation are connected as one, which can enhance the structural strength.

[0031] In this embodiment, optionally, a protruding first reinforcing bar 5 is reserved on the top surface of the column 11. Thus, the first reinforcing bar 5 can be used to connect with the superstructure and can also be used to reinforce the connection with the precast beam 2, etc.

[0032] Optionally, a protruding second reinforcing bar is reserved on the end face of the precast beam 2. The second reinforcing bar is inserted into the area directly above the top surface of the column 11. Thus, the first reinforcing bar 5 on the top surface of the precast column 1 and the second reinforcing bar on the end face of the precast beam 2 are cross-shaped. When the top of the precast beam 2 and the precast column 1 are poured with concrete to form a whole, the structural strength can be further improved to meet the seismic requirements.

[0033] In some embodiments, the precast beams 2 include transverse precast beams 2 and longitudinal precast beams 2, that is, some precast beams 2 are arranged transversely and some are arranged longitudinally, thus forming a grid-like structure. Furthermore, the second reinforcing bars on the end faces of the transverse precast beams 2 and the second reinforcing bars on the end faces of the longitudinal precast beams 2 have a height difference. When hoisting the precast beams 2, the precast beams 2 with lower reinforcing bars can be hoisted first, and then the precast beams 2 with higher reinforcing bars can be installed. By setting the second reinforcing bars extending from the end faces of the precast beams 2 in different directions to have different height differences, the two can be arranged in an interlaced manner, improving structural strength and meeting seismic requirements.

[0034] In other embodiments, at least a portion of the precast slab 3 is provided with a discharge port 31, which is used to discharge grain from the shallow circular silo.

[0035] In this embodiment, the precast slab 3 has reinforcing ribs on its sides, and these ribs extend to the area directly above the precast beam 2. The reinforcing ribs extending from all four sides of the precast slab 3 extend into the area directly above the precast beam 2. After the concrete is poured to form a single unit, these ribs can improve the structural strength to meet seismic requirements.

[0036] In some embodiments, the construction structure also includes several arc-shaped beams 6, which are set on the top of the silo wall 4 and spliced ​​into a ring. The end faces of some precast beams 2 facing the arc-shaped beams 6 are formed into arcs, and the precast beams 2 with arc-shaped end faces are integrally formed with the corresponding arc-shaped beams 6. Since the arc-shaped beams 6 set on the edge of the shallow circular silo's elevated layer are precast in a factory, and the arc-shaped template is difficult to process, any error in the arc shape at the end will lead to installation difficulties. Therefore, in this embodiment, the arc-shaped beams 6 and the precast beams 2 adjacent to or in contact with the arc-shaped beams 6 are precast integrally. Specifically, reinforcement bars can be reserved on the corresponding end faces of the precast beams 2. The arc-shaped beams 6 are connected to the reinforcement bars on the precast beams 2 using separate grouting sleeves, and the connection points can be constructed using on-site wet-casting.

[0037] As shown in Figure 8, in this embodiment, the specific construction method of the above-mentioned shallow circular warehouse elevated floor column, wall, beam and slab construction structure without formwork and support is as follows:

[0038] First, precast columns 1, precast beams 2, and precast slabs 3 are manufactured in the factory. Then, precast columns 1 are hoisted, and the grouting sleeves pre-embedded at the bottom of column 1 are connected to the pre-reserved reinforcing bars in the foundation. Once the pre-reserved reinforcing bars smoothly enter the sleeves, column 1 is considered essentially in place. At this point, only minor adjustments are needed to column 11 to ensure accurate installation. Then, grouting is performed on the grouting sleeves at the bottom of column 11, connecting column 1 to the pre-reserved reinforcing bars to form a unified structure. After grouting of column 1, precast beams 2 are hoisted. The corbel supports at the top of column 11 are used to temporarily support beams 2, eliminating the need for scaffolding and formwork. Because the reinforcing bars at the beam-column joints are relatively dense, there is a height difference between the longitudinal and transverse reinforcing bars of the precast beams 2 extending into the column to ensure successful installation. The hoisting sequence must be planned in advance: the lower-level reinforcing bar precast beams 2 are hoisted first, followed by the higher-level reinforcing bar precast beams 2. After the precast beam 2 is installed, the precast slab 3 is hoisted in. The precast slab 3 is placed in the recess reserved in the precast beam 2. All the precast slabs 3 are installed on the precast beam 2 to achieve formwork-free support. Finally, concrete is poured on all the overlapping parts to form the whole structure of the entire elevated floor.

[0039] In summary, the beneficial effects of this utility model are as follows: by disassembling the structure of the shallow circular silo elevated floor into three components—precast columns, precast beams, and precast slabs—which are processed in the factory and then transported to the site for assembly, the precast columns are equipped with corbels at the top to support the precast beams; the precast beams have recesses on both sides to support the precast slabs; and the precast beams and slabs are combined with each other in the form of composite beams and slabs, with the lower half of the precast beams and slabs serving as supports for the upper cast-in-place portion. This eliminates the need for supporting frames during the assembly of all components and during the pouring of concrete at the joints and composite portions, thus achieving formwork-free and supportless construction of the columns, beams, and slabs of the shallow circular silo elevated floor.

[0040] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “a” or “one,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “connected” or “linked,” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” and “right,” etc., are used only to indicate relative positional relationships, which change accordingly when the absolute position of the described object changes.

[0041] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A construction structure for shallow circular warehouses with elevated columns, walls, beams, and slabs that requires no formwork or support, characterized in that: The construction structure includes several precast columns, several precast beams, and several precast slabs. The precast columns are spaced apart within the enclosed area of ​​the shallow circular silo wall. Each precast column includes a column body and corbels fixed to the side of the top of the column body. The precast beams are arranged in a grid pattern. Each precast beam has its two ends resting on a corbel. The edge of each precast slab rests on a precast beam. The precast slabs cover the enclosed surface of the silo wall.

2. The construction structure according to claim 1, characterized in that, The precast beam has notches on both sides along its length, and the edge of the precast slab is located within the notches.

3. The construction structure according to claim 1, characterized in that, The top side of the column has bolt holes for mounting the bracket, and the bracket is detachably connected to the column by bolts and the bolt holes.

4. The construction structure according to claim 1, characterized in that, A sleeve is pre-embedded in the bottom of the column, and steel bars are pre-reserved on the foundation within the enclosed area of ​​the silo wall. The sleeve is fitted over the steel bars, and the sleeve is filled with grout.

5. The construction structure according to claim 1, characterized in that, The top surface of the column has a protruding first reinforcing bar.

6. The construction structure according to claim 1, characterized in that, The end face of the precast beam has a protruding second reinforcing bar, which is inserted into the area directly above the top surface of the column.

7. The construction structure according to claim 6, characterized in that, The precast beams include transverse precast beams and longitudinal precast beams, and the second reinforcing bars on the end faces of the transverse precast beams and the second reinforcing bars on the end faces of the longitudinal precast beams have a height difference.

8. The construction structure according to claim 1, characterized in that, At least some of the precast slabs are provided with unloading ports.

9. The construction structure according to claim 1, characterized in that, The precast slab is provided with reinforcing ribs on its side, and the reinforcing ribs extend to the area directly above the precast beam.

10. The construction structure according to claim 1, characterized in that, The construction structure also includes several arc-shaped beams, which are set on the top of the silo wall and spliced ​​into a ring. The end faces of some of the precast beams facing the arc-shaped beams are formed into arcs, and the precast beams with arc-shaped end faces are integrally formed with the corresponding arc-shaped beams.

Images