Formwork-free device for secondary structure constructional column
By using a support-free formwork device in the construction of secondary structure structural columns, and using anchor reinforcement bars and support plates to maintain the fixed position of the gas filling blocks, the problems of insufficient concrete ramming and poor verticality of the structural columns are solved, and efficient and stable construction results are achieved.
Patent Information
- Application Number
- CN202422223896.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-10
AI Technical Summary
During the construction of secondary structure structural columns, it is difficult for the prior art to ensure that the concrete is completely compacted, and due to the expansion thrust of the concrete, the sides of the aerator block cannot be fully stable and stable, affecting the verticality and stability of the structural columns.
A secondary structure structural column support-free formwork device is adopted, including a structural column steel cage and a concrete aerated block structure. The anchor steel bars are fixedly connected on the inner side wall of the aerated block, and the fixed position of the aerated block is maintained by using support plates and locking rod components to ensure that the concrete is fully compacted.
The independent construction of secondary structural columns is realized, the construction efficiency and short construction period are improved, and the structural stability and appearance quality of structural columns are ensured.
Smart Images
Figure CN223003620U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of secondary structure construction columns, and particularly relates to a formwork-free device for secondary structure construction columns. Background Technique
[0002] The secondary structure of a building is the non-load-bearing part of the building structure, such as non-load-bearing walls, construction columns, ring beams, partition walls and other structures. Compared with the primary structure of the building structure, the secondary structure is a non-load-bearing structure, so the construction requirements are lower than those of the primary structure. In maintaining the safety and stability of the building structure, the secondary structure is less important than the primary structure.
[0003] During the building construction process, since the secondary structure is a non-load-bearing structure, such as a construction column, in order to improve the construction efficiency and reduce the construction difficulty, the secondary structure mostly adopts precast building structure construction. That is, compared with the traditional formwork support and concrete pouring method, the use of precast concrete structures not only greatly increases the construction progress, reduces the construction difficulty, improves the construction efficiency, but also effectively solves the disadvantages existing in the traditional formwork support and concrete pouring process, such as the formwork is easy to bulge after pouring concrete, resulting in leakage of concrete mortar, and the deformation of the poured structure, and the sealing of the formwork after formwork support is not high, resulting in slurry leakage and other problems.
[0004] Specifically, during the construction process of the secondary structure construction column, the prior art uses precast aerated blocks to pile up around the steel bar cage structure and pour concrete along the upper part of the aerated blocks.
[0005] However, it is often found in the actual work process that, firstly, due to the large height of the secondary construction column, after pouring concrete from the top position, due to the large height, it is impossible to ensure that the concrete is fully tamped and filled into the piled aerated blocks. Specifically, the vibrating rod used for tamping simply cannot extend into the steel bar cage from above the construction column. Secondly, when concrete mortar is poured, due to the expansion thrust of the mortar, once the side of the aerated block is not fully and stably supported, such as there is a gap between the aerated block and the wall, under the condition of insufficient support, the concrete mortar is prone to expand and push the aerated block, resulting in insufficient verticality of the construction column, which not only affects the stability of the construction column but also affects the appearance of the construction column. Content of the Utility Model
[0006] Based on the above background, the purpose of the utility model is to provide a formwork-free device for secondary structure construction columns.
[0007] To achieve the above purpose, the utility model adopts the following technical solutions:
[0008] A formwork-free device for secondary structure construction columns includes a construction column steel bar cage and a concrete aerated block structure for forming the construction column;
[0009] The aerated concrete block structure includes a number of first aerated blocks and second aerated blocks stacked in sequence;
[0010] The reinforcement cage of the structural column is located in the cavity formed by the first aerated block and the second aerated block;
[0011] The formwork-free device for the secondary structural column further includes a pouring pressing plate mechanism. The pouring pressing plate mechanism includes support plates supported on both sides of the aerated concrete block structure, and the support plates are pulled by a number of lock tie rod assemblies;
[0012] A number of concrete pouring ports communicating with the cavity are formed on the support plates, and sealing plates for sealing the concrete pouring ports are detachably installed on the support plates.
[0013] Preferably, the transverse cross-sectional shapes of the first aerated block and the second aerated block are U-shaped.
[0014] Preferably, the U-shaped openings of the first aerated block and the second aerated block are arranged in opposite directions.
[0015] Preferably, a pair of tension anchor bars anchored on the reinforcement cage of the structural column are fixedly connected to the inner side walls of the first aerated block and the second aerated block.
[0016] Preferably, the tension anchor bars are respectively fixedly connected to the rear side wall of the first aerated block and the front side wall of the second aerated block;
[0017] The tension anchor bars are distributed in a left-right symmetric manner.
[0018] Preferably, the tension anchor bar includes a horizontally-reinforced part fixedly connected; the horizontally-reinforced part is integrally formed with a hooked part hooked on the reinforcement cage of the structural column.
[0019] Preferably, the left and right sides of the support plate are tightened by a number of lock tie rod assemblies arranged at intervals up and down.
[0020] Preferably, each lock tie rod assembly includes a pulling screw rod slidably connected between the support plates on both sides, and inner pushing nuts are threadedly connected to both ends of the pulling screw rod.
[0021] Preferably, ear seat plates protruding outward are respectively fixedly connected to both ends of the sealing plate;
[0022] Screws slidably connecting the ear seat plates are respectively fixedly connected to both sides of the concrete pouring port, and fastening nuts are threadedly connected to the screws.
[0023] The utility model has the following beneficial effects:
[0024] 1. During construction, in the construction pattern of the first aerated block - the second aerated block - the first aerated block - the second aerated block... the U-shaped openings of the first aerated block and the second aerated block are snapped into the steel reinforcement cage of the structural column (i.e., the steel reinforcement cage of the structural column is located within the cavity formed by the first aerated block and the second aerated block, and the cavity is formed by the U-shaped openings of the aerated blocks). After successive piling up in the above manner, the entire column structure is formed. This method enables the secondary structure to be constructed independently without the need to cooperate with the connected building structure. This construction method is fast, has a short construction period, and is convenient for construction.
[0025] 2. By having the support plates on both sides abut against the side walls of the piled aerated blocks, then turning the inner push nuts towards each other until it becomes difficult to turn. At this time, under the traction of the traction screw, the support plates are firmly clamped between the front and rear side walls of the first aerated block and the second aerated block, and in this way, the first aerated block and the second aerated block are kept fixed. After subsequent filling with concrete, they can also maintain a fixed position.
[0026] 3. During the working process, fill the concrete into the cavity from the concrete pouring opening in a bottom-up manner until it reaches a position close to the concrete pouring opening. At this time, the operator inserts the vibrating rod into the concrete pouring opening. After simple vibration, the concrete structural layer is completely and tightly filled in the cavity.
[0027] Subsequently, align the ear seat plates on both sides of the sealing plate at this position with the screw rods, tighten the nuts, then remove the sealing plate at the upper position, and continue to fill the concrete in the same manner as above and then continue to tamp. Repeat this process until the concrete filling is completed. By this method, sectional grouting of concrete and sectional tamping are achieved, greatly improving the construction efficiency of the structural column and the structural stability of the structural column.
[0028] The advantages of the above structural method also lie in that: the main structure of the structural column can be pre-completed, and thus the building structures such as walls and beam structures that are structurally connected to the structural column do not need to wait for the completion of the construction of the structural column and can be constructed synchronously, further increasing the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.
[0030] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present invention;
[0031] Figure 2It is a schematic structural diagram of a support plate in an embodiment of the present utility model;
[0032] Figure 3 It is a schematic structural diagram of a steel reinforcement cage of a constructed column by piling up a first aerated block and a second aerated block in an embodiment of the present utility model;
[0033] Figure 4 It is a schematic structural diagram of a steel reinforcement cage of an anchor-pulling constructed column with a first aerated block and a second aerated block in an embodiment of the present utility model;
[0034] Figure 5 It is a schematic structural diagram of the distribution mode of anchor-pulling steel bars in an embodiment of the present utility model.
[0035] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments
[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0037] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.
[0038] In addition, the descriptions such as "first" and "second" in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.
[0039] Embodiment 1
[0040] Such as Figures 1-5As shown in the figure, a formwork-free device for secondary structural construction columns includes a construction column steel reinforcement cage (the structure of the construction column steel reinforcement cage is the steel reinforcement cage structure commonly used in existing construction columns, and the main structure includes several longitudinal bars and stirrups hooped outside the longitudinal bars) and a concrete aerated block structure for forming the construction column.
[0041] Specifically, the concrete aerated block structure includes several first aerated blocks 1 and second aerated blocks 2 stacked in sequence; the transverse cross-sectional shapes of the first aerated block 1 and the second aerated block 2 are U-shaped. Moreover, the U-shaped openings of the first aerated block 1 and the second aerated block 2 are arranged in opposite directions. Specifically, the U-shaped opening of the first aerated block 1 faces forward, and the U-shaped opening of the second aerated block 2 faces backward. According to the construction method of first aerated block 1 - second aerated block 2 - first aerated block 1 - second aerated block 2..., the U-shaped openings of the first aerated block 1 and the second aerated block 2 are clamped into the construction column steel reinforcement cage (that is, the construction column steel reinforcement cage is located in the cavity formed by the first aerated block 1 and the second aerated block 2, and the cavity is formed by the U-shaped openings of the aerated blocks). And the whole column structure is formed by stacking in the above way in sequence.
[0042] During the construction process, in order to place and pour concrete into the cavity, due to the expansion force of the concrete, the first aerated block 1 and the second aerated block 2 are displaced due to swelling, affecting the verticality of the construction column. A pair of tension anchor bars 7 anchored on the construction column steel reinforcement cage are fixedly connected to the inner side walls of the first aerated block 1 and the second aerated block 2. The tension anchor bars 7 are respectively fixedly connected to the rear side wall of the first aerated block 1 and the front side wall of the second aerated block 2; the tension anchor bars 7 are distributed in a left-right symmetric manner. The tension anchor bar 7 includes a horizontally arranged part fixedly connected; the horizontally arranged part is integrally formed with a hooked part that hooks on the construction column steel reinforcement cage.
[0043] When stacking the aerated blocks, hook the hooked part of the tension anchor bar 7 on the steel reinforcement cage structure and tie it firmly with iron wire.
[0044] By the above method, the aerated blocks are anchored to the construction column steel reinforcement cage, solving the problem that when pouring and filling concrete, the aerated blocks are displaced due to swelling, affecting the verticality of the construction column.
[0045] Embodiment 2
[0046] As Figures 1-5 shown, on the basis of the structure of Embodiment 1 in this embodiment, in order to support the first aerated block 1 and the second aerated block 2 during the pouring process, maintain the shaped posture and facilitate the vibration after subsequent concrete pouring, the formwork-free device for secondary structural construction columns further includes a pouring pressing plate mechanism. The pouring pressing plate mechanism includes support plates (the front side is the first support plate and the rear side is the second support plate) supported on both sides of the concrete aerated block structure, and the first support plate 32 and the second support plate 31 are pulled by several lock rod assemblies.
[0047] Specifically, the left and right sides between the first support plate 32 and the second support plate 31 are tightened by a number of lock rod assemblies arranged at intervals up and down. Each lock rod assembly includes a pulling screw rod 4 slidably connected between the two support plates, and inner pushing nuts 41 are threadedly connected to both ends of the pulling screw rod 4.
[0048] The first support plate 32 and the second support plate 31 on both sides are abutted against the side walls of the stacked aerated blocks. Subsequently, the inner pushing nuts 41 are screwed towards each other until it becomes difficult. At this time, under the pulling of the pulling screw rod 4, the first support plate 32 and the second support plate 31 are firmly clamped between the front and rear side walls of the first aerated block 1 and the second aerated block 2, and in this way, the first aerated block 1 and the second aerated block 2 are kept fixed. After the subsequent concrete is filled, they can also maintain a fixed posture.
[0049] Embodiment 3
[0050] As Figures 1-5 shown, on the basis of the structure of Embodiment 2 in this embodiment, due to the large height of the construction column, when pouring concrete from the top, the concrete structure cannot be fully tamped and filled into the cavity formed by the first aerated block 1 and the second aerated block 2, which affects the structural stability of the construction column. A number of concrete pouring ports A communicating with the cavity are opened on the first support plate 32 and the second support plate 31 (specifically, the pouring ports are located at the U-shaped opening positions of the first aerated block 1 and the second aerated block 2), and a sealing plate 5 for sealing the concrete pouring port A is detachably installed on the first support plate 32 and the second support plate 31.
[0051] Both ends of the sealing plate 5 are respectively fixedly connected with ear seat plates protruding outward; both sides of the concrete pouring port A are respectively fixedly connected with screw rods slidably connecting the ear seat plates, and fastening nuts are threadedly connected to the screw rods.
[0052] During the working process, the concrete is filled into the cavity from the concrete pouring port A in a bottom-up manner to a position close to the concrete pouring port A. At this time, the operator inserts the vibrating rod into the concrete pouring port A. After simple vibration, the concrete structure layer is completely tightly filled in the cavity.
[0053] Subsequently, the ear seat plates on both sides of the sealing plate 5 at this position are aligned with the screw rods. After tightening the nuts, the sealing plate 5 at the upper position is removed, and after filling the concrete in the same manner as above, it is continued to be tamped. Repeat this process until the concrete filling is completed. By this method, sectional grouting of concrete and sectional tamping are realized, which greatly improves the construction efficiency of the construction column and the structural stability of the construction column.
[0054] The advantages of the above structural method also lie in that the main structure of the construction column can be pre-completed, and then building structures such as walls and beam structures that are structurally connected to the construction column do not need to wait for the construction of the construction column to be completed and can be constructed synchronously, thus further increasing the construction efficiency.
[0055] Certainly, the above description is not a limitation on the present utility model, and the present utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the essence of the present utility model should also fall within the protection scope of the present utility model.
Claims
1. A secondary structure column formwork-free device, characterized in that: It includes a structural column reinforcement cage and a concrete aerated block structure used to form the structural column; The concrete aerated block structure comprises a plurality of first aerated blocks and second aerated blocks stacked in sequence; The structural column reinforcement cage is located in the cavity formed by the first aerated block and the second aerated block; The secondary structure construction column formwork-free device also includes a casting plate mechanism, which includes support plates supported on both sides of the concrete aerated block structure, and the support plates are pulled by a plurality of locking rod assemblies; The support plate is provided with a plurality of concrete pouring openings connected to the cavity, and a sealing plate for sealing the concrete pouring openings is detachably mounted on the support plate.
2. The secondary structure construction column formwork-free device according to claim 1, characterized in that: The transverse cross-section of the first aerated block and the second aerated block is U-shaped.
3. The secondary structure construction column formwork-free device according to claim 2, characterized in that: The U-shaped opening of the first aeration block and the U-shaped opening of the second aeration block are arranged in opposite directions.
4. The secondary structure construction column formwork-free device according to claim 2, characterized in that: A pair of anchor steel bars anchored on the structural column steel cage are fixedly connected to the inner side walls of the first aerated block and the second aerated block.
5. The secondary structure construction column formwork-free device according to claim 4, characterized in that: The anchor steel bars are respectively fixedly connected to the rear side wall of the first aerated block and the front side wall of the second aerated block; The anchor steel bars are distributed in a bilaterally symmetrical manner.
6. The secondary structure construction column formwork-free device according to claim 5, characterized in that: The anchor reinforcement comprises a horizontal reinforcement portion which is fixedly connected and arranged; the horizontal reinforcement portion is integrally formed with a hook reinforcement portion which is hooked on the reinforcement cage of the structural column.
7. The secondary structure construction column formwork-free device according to claim 1, characterized in that: The left and right sides of the support plate are tightened by a plurality of locking rod assemblies spaced apart vertically.
8. The secondary structure construction column formwork-free device according to claim 7, characterized in that: The locking rod assembly includes a pulling screw rod slidably connected between the supporting plates on both sides, and both ends of the pulling screw rod are threadedly connected with internal pushing nuts.
9. The secondary structure construction column formwork-free device according to claim 1, characterized in that: Both ends of the sealing plate are respectively fixedly connected with ear seat plates protruding outward; Screws which are slidably connected to the ear seat plates are fixedly connected to both sides of the concrete pouring port, and fastening nuts are threadedly connected to the screws.