Modular vertical reinforcement structure

Abstract

The utility model provides a kind of modular vertical steel bar structure belongs to the field of construction engineering science and technology.Solve the problem of deviation adaptability, installation efficiency, economy and other problems of modular construction group steel bar connection.It includes several steel bar modules and several grouting sleeves, several steel bar modules are connected by several grouting sleeves, the several steel bar modules are steel bar cage or steel bar mesh, grouting sleeve is installed on the steel wire head of each steel bar cage or steel bar mesh.The modular vertical grouting sleeve in the utility model does not need auxiliary equipment, only 10 minutes of crane is used to complete the core process of "cage positioning-grouting-upper cage inserting steel bar", and the crane can be immediately transferred during the curing period of grout.Thus, more than 90% of crane standby time is saved, platform erection and electrical wiring are reduced, and rapid hoisting, rapid connection and equipment lightweight are truly realized.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering science and technology, and in particular relates to a modular vertical steel reinforcement structure. Background Technology

[0002] New-type building industrialization is an inevitable path for the high-quality development of my country's construction industry, and the industrialization of steel reinforcement engineering is an important component of building industrialization. With the decline of my country's demographic dividend and rising labor costs, modular construction of steel reinforcement engineering is gradually becoming an inevitable trend in engineering construction. Traditional steel reinforcement connection methods can no longer meet the needs of modular construction in engineering projects. During the construction of steel reinforcement engineering, the steel cages / mesh are affected by factors such as hoisting deformation and prefabrication errors, resulting in certain axial gaps and radial offsets in the steel reinforcement that need to be connected. Traditional steel reinforcement connection methods cannot guarantee construction quality and efficiency.

[0003] Currently, to meet the requirements of modular construction, various methods such as straight thread extended wire connection technology, extruded sleeve rebar connection technology, threaded combined sleeve rebar connection technology, and extruded threaded combined sleeve rebar connection technology can be used to achieve modular group rebar installation. Although these solutions can be used for group rebar connections, they still have certain shortcomings in terms of deviation adaptability, installation efficiency, and economy. To further improve the industrialization and standardization of rebar engineering, increase the overall construction efficiency of rebar engineering, shorten the construction period, reduce the overall labor load, and meet the needs of rebar engineering construction, it is urgent to develop a new type of modular rebar connection construction technology to meet the higher demands of engineering construction. Utility Model Content

[0004] In view of this, in order to solve the shortcomings of modular construction grouped steel bar connection mentioned in the background technology, such as deviation adaptability, installation efficiency and economy, this utility model proposes a modular vertical steel bar structure and its construction method, which can quickly complete the synchronous connection of multiple vertical steel bars on the construction site through overall hoisting and sleeve grouting connection process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a modular vertical steel reinforcement structure, comprising several steel reinforcement modules and several grouting sleeves, wherein the several steel reinforcement modules are connected by several grouting sleeves, and the several steel reinforcement modules are steel reinforcement cages or steel reinforcement meshes, and a grouting sleeve is installed on the steel wire end of each steel reinforcement cage or steel reinforcement mesh.

[0006] Furthermore, the grouting sleeve includes a plug and a sleeve body. A plug is installed at one end of the sleeve and is connected to the first reinforcing bar. Grout is injected into the sleeve body, and a second reinforcing bar is inserted into the sleeve.

[0007] Furthermore, the first reinforcing bar has a reinforcing bar thread at its end, and the plug has an internal thread on its inner side, with the reinforcing bar thread being screwed into the internal thread.

[0008] Furthermore, the plug is connected to the sleeve body by a thread.

[0009] Compared with the prior art, the advantages of the modular vertical steel reinforcement structure described in this utility model are: 1. This utility model aims to completely solve the problems of low efficiency, difficult positioning, large quality fluctuations, and high on-site labor intensity caused by traditional methods of binding, welding, or connecting single sleeves one by one. The modular vertical grouting sleeve in this utility model requires no auxiliary equipment and can complete the core processes of "lowering the cage, positioning, grouting, and inserting the reinforcing bars" in just 10 minutes using a crane. The crane can be moved immediately during the grout curing period. As a result, more than 90% of the crane waiting time is saved, platform construction and electrical wiring are reduced, and rapid hoisting, rapid connection and equipment lightweighting are truly achieved.

[0010] 2. Compared with existing connection technologies, this utility model can significantly improve construction speed, reduce hoisting and labor costs, reduce safety risks, and ensure that the performance requirements of steel bar connection are met, thereby promoting the development of industrialization, intelligence and green building. Attached Figure Description

[0011] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings: Figure 1 This is a process flow diagram of the modular vertical steel reinforcement structure and its construction method described in this utility model; Figure 2 This is a schematic diagram of the grouting sleeve structure; Figure 3 This is a schematic diagram of the steel mesh structure; Figure 4 This is a schematic diagram of the installation of steel mesh panels. In the diagram: 1-plug, 2-rebar thread, 3-sleeve body, 4-grout, 5-rigid tooling, 6-grouting sleeve, 7-first rebar, 8-second rebar. Detailed Implementation The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0012] See Figure 1-4This embodiment describes a modular vertical steel reinforcement structure, comprising several steel reinforcement modules and several grouting sleeves. The steel reinforcement modules are connected by several grouting sleeves 6. The steel reinforcement modules are steel cages or steel meshes, and a grouting sleeve 6 is installed on the steel wire end 2 of each steel cage or steel mesh.

[0013] The grouting sleeve 6 includes a plug 1 and a sleeve body 3. The plug 1 is installed at one end of the sleeve and is connected to the first reinforcing bar 7. Grout 4 is injected into the sleeve body 3 and a second reinforcing bar 8 is inserted into the sleeve body 3.

[0014] The first reinforcing bar 7 has a reinforcing bar thread 2 at its end, and the plug 1 has an internal thread on its inner side, and the reinforcing bar thread 2 is screwed into the internal thread.

[0015] The plug 1 is connected to the sleeve body 3 by a thread.

[0016] The connection method of the grouting sleeve in the modular vertical steel reinforcement structure is as follows: the plug 1 is pre-installed on one end of the sleeve body 3 to form a prefabricated joint assembly. The joint assembly is connected to the first steel bar 7 by a threaded connection and a specified torque is applied. Grout 4 is injected into the sleeve body 3 to a predetermined elevation. While the grout 4 is still fluid, the second steel bar 8 is inserted into the sleeve body 3 from top to bottom to the designed embedding depth. After the grout 4 hardens, the connection of the two steel bars is achieved.

[0017] The construction method for the modular vertical steel reinforcement structure specifically includes the following steps: Step 1: Cut the ends of the reinforcing bars flat according to the design length requirements, process straight threads, and connect the grouting sleeve 6; Step 2: In the processing plant or workshop, the upper and lower steel cages or steel meshes that need to be connected are made by automatic equipment or manual processing. The lower mesh is pre-embedded with no less than 2 vertical steel bars that extend 1 meter above the mesh. These are used to fix the upper steel mesh with the horizontal steel bars in Step 6. At the same time, a rigid fixture 5 is installed for hoisting the mesh to prevent deformation during the hoisting process. The rigid fixture 5 can be removed 24 hours after the grouting in Step 5. Step 3: Hoist the lower steel reinforcement module into place (if the lower steel reinforcement of the module needs to be connected with the pre-embedded short steel reinforcement, follow steps 4, 5, and 7 below, which are omitted here). (The relevant steps for pouring concrete for the lower steel reinforcement mesh module are also omitted here. The focus is on the mesh-mesh connection process). Step 4: The grouting sleeve 6 is installed on the steel wire end 2 of the lower steel reinforcement module. Grout 4 is injected into the internal cavity of the grouting sleeve 6 to the preset control line to reserve expansion space for the upper steel reinforcement. The upper steel reinforcement module is vertically inserted into the previously grouting grouting sleeve 6 by a crane. Step 5: While the grout is still in a flowing state, hoist the upper steel reinforcement module as a whole and insert it vertically into the grouting sleeve 6 of the lower steel reinforcement module from top to bottom to ensure that the designed embedding depth is achieved. Step 6: Using the horizontal bars of the upper steel mesh and the vertical bars of the lower steel mesh, or using the horizontal bars of the upper and lower steel mesh, fixation clamps are used as temporary tie pieces to prevent disturbance during the hardening process of the grout. Step 7: After the grout has fully hardened, remove the fixing clamps. The multiple vertical steel bars of the upper and lower steel bar modules will be connected in an integrated manner to achieve rapid assembly of "cage-cage" / "mesh-mesh". The upper and lower reinforcement modules can be reinforcement cages or reinforcement meshes, etc., and are described in terms of modules.

[0018] In step 6, the fixing clamp is used to fix the horizontal bars of the upper and lower steel bar modules or to fix the upper horizontal bars to the pre-embedded vertical bars.

[0019] Compared to this invention, existing extrusion connections require suspending the hydraulic clamps, along with the pump station, oil pipes, and lifting points, next to the reinforcing bars for operation. On-site, a column-beam support frame must be erected before hanging the hydraulic clamps. After all preparations are complete, each reinforcing bar is extruded individually, with an average connection time of approximately 4 minutes per bar. If calculated based on a module of 60 vertical reinforcing bars, and assuming the crane can leave after connecting 80% of the bars, this amounts to approximately 3 hours of crane time, and multiple people are needed to move the equipment. The extrusion sleeve requires a hydraulic pump station, a clamping device, and a power supply, necessitating multiple dedicated operators and oil pipe installation on-site. Therefore, extrusion connections are inefficient and cost-effective. This invention effectively solves the problems associated with extrusion connections.

[0020] Taking the connection of steel cages or steel mesh in building construction and bridge engineering as an example, the process of this utility model first processes the straight threads of the steel bars at the ends in the processing workshop and connects them to the grouting sleeve 6. The upper and lower steel cages or steel mesh are made in the processing workshop. The lower steel cage or steel mesh is hoisted and positioned on the project site. Grout is injected from top to bottom into the grouting sleeve 6 to the preset control line. While the grout is still fluid, the upper steel cage or steel mesh is hoisted and positioned. The two ends of the steel mesh are fixed with fixing clamps to ensure the installation and positioning of the steel mesh, and the steel bars are connected at the same time. After connection, the fixing clamps are removed.

[0021] The entire process significantly reduces the time required for rebar connection and substantially decreases the need for on-site labor. The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.

Claims

1. A modular vertical steel reinforcement structure, characterized in that: It includes several steel reinforcement modules and several grouting sleeves (6). The steel reinforcement modules are connected by several grouting sleeves (6). The steel reinforcement modules are steel cages or steel meshes. A grouting sleeve (6) is installed on the steel wire end (2) of each steel cage or steel mesh. The grouting sleeve (6) includes a plug (1) and a sleeve body (3). A plug (1) is installed at one end of the sleeve. The plug (1) is connected to the first reinforcing bar (7). Grout (4) is injected into the sleeve body (3). A second reinforcing bar (8) is inserted into the sleeve body (3).

2. The modular vertical steel reinforcement structure according to claim 1, characterized in that: The first reinforcing bar (7) is provided with a reinforcing bar thread (2) at its end, and the plug (1) is provided with an internal thread on its inner side. The reinforcing bar thread (2) is screwed into the internal thread.

3. The modular vertical steel reinforcement structure according to claim 1, characterized in that: The plug (1) is connected to the sleeve body (3) by a thread.

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