External prestressed structure for reinforcing masonry structure house

Abstract

The utility model discloses a body outside prestress structure for reinforcing masonry structure house, including masonry mechanism and tightening mechanism, the masonry mechanism includes building block, multiple steel strand bundles transversely throughout the both ends of building block, tightening mechanism, the tightening mechanism includes multiple fixed line cover of the movable sleeve joint in multiple steel strand bundles both ends. In the utility model, after steel strand bundle transversely throughout building block, the fixed line cover is sleeved in the outside end part of steel strand bundle, passes through the rotation screw rod, drives two pressure blocks and inserts the inside of fixed line cover and moves back to, then the vertical embedding of axle is inserted in the stranding gap of steel strand bundle, and the radial compression of steel strand bundle line body is realized to pressure block simultaneously, and this double fixed structure effectively promotes the combination intensity of fixed line cover and steel strand bundle, can prevent both from separating in hydraulic tensioning operation, can also ensure the uniform transmission of load in the tensioning process, thereby guaranteeing the stable implementation of hydraulic system operation.

Description

Technical Field

[0001] This utility model relates to the field of titanium cup technology, specifically to an external prestressed structure for reinforcing masonry structures. Background Technology

[0002] Due to its low tensile strength but good compressive strength, masonry materials require careful control of their stress state in engineering applications. Masonry is highly susceptible to brittle failure when subjected to tensile stress or eccentric compressive loads. To mitigate this mechanical deficiency, prestressed steel strand reinforcement technology is commonly used in engineering practice. This involves pre-embedding steel strand bundles within the masonry to form a constraint system. This process applies prestressing force to the steel strands through prestressing, creating a favorable pre-compression stress field in the masonry before service, thereby effectively improving the structure's crack resistance.

[0003] Considering the increased construction costs associated with the installation of integral steel strands, the optimized engineering solution adopted a detachable steel tie rod connection system. This system uses reusable steel tie rods at both ends of the steel strand bundle and employs hydraulic tensioning equipment for prestress control. However, in practical applications, stress concentration at the connection nodes, coupled with fatigue effects under dynamic loads, makes the connection prone to localized fractures and damage, leading to the failure of the hydraulic tensioning operation. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] An external prestressed structure for reinforcing masonry structures includes a masonry mechanism and a tightening mechanism. The masonry mechanism includes masonry blocks and multiple steel strand bundles that run transversely through both ends of the masonry blocks. The tightening mechanism includes multiple wire-fixing sleeves that are movably sleeved at both ends of the multiple steel strand bundles, steel tie rods connected to the outer walls of the wire-fixing sleeves, two pads that fit against the top and bottom of the steel strand bundles, a U-shaped opening on the wire-fixing sleeve, a threaded rod movably located inside the U-shaped opening, and two sets of locking components located at both ends of the threaded rod. Both pads are fixedly connected to the inner walls of the wire-fixing sleeves.

[0007] By adopting the above technical solution, after the steel strand bundle passes through the block laterally, the fixing sleeve is fitted onto the outer end of the steel strand bundle. By rotating the threaded rod, two pressure blocks are driven to move in opposite directions and insert into the fixing sleeve. Then, the insertion shaft is vertically embedded into the stranding gap of the steel strand bundle. At the same time, the pressure blocks radially press the steel strand bundle body. This double fixing structure effectively improves the bonding strength between the fixing sleeve and the steel strand bundle. It can prevent the two from separating during hydraulic tensioning operations and ensure the uniform transmission of load during tensioning, thereby ensuring the stable implementation of the hydraulic system operation.

[0008] In a preferred embodiment, the present invention can be further configured such that the external threads on the threaded rod are set in two segments with opposite directions of rotation.

[0009] In a preferred embodiment, the present invention can be further configured such that: multiple levers are fixedly connected to the outer side of the threaded rod, the multiple levers are equally spaced and arranged in a ring, and the levers are located inside the U-shaped opening.

[0010] In a preferred embodiment, the present invention can be further configured as follows: the locking assembly consists of a pressure block and a pin, the pressure block slides through the inner wall of the U-shaped opening, the pressure block is screwed to the threaded rod, the pin is located inside the wire fixing sleeve and is fixedly connected to the pressure block, and the pin passes through the steel strand bundle body.

[0011] In a preferred embodiment, the present invention can be further configured such that the outer end of the insert shaft is tapered, and the insert shaft is made of an alloy material.

[0012] In a preferred embodiment, the present invention can be further configured such that: both ends of the block are provided with a clamping mechanism, the clamping mechanism includes a baffle attached to one end of the block, an outer plate disposed on the outside of the baffle, and two hydraulic cylinders connected between the baffle and the outer plate, the two hydraulic cylinders being connected in series, and the outer ends of three adjacent steel tie rods being fixedly connected to the inner sidewall of the outer plate.

[0013] In a preferred embodiment, the present invention can be further configured such that: the baffle has a plurality of circular openings suitable for the steel strand bundle to pass through, the diameter of the circular openings being larger than the diameter of the steel strand bundle.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0015] 1. In this utility model, after the steel strand bundle passes through the block laterally, the fixing sleeve is fitted onto the outer end of the steel strand bundle. By rotating the threaded rod, two pressure blocks are driven to move in opposite directions and insert into the fixing sleeve. Then, the insertion shaft is vertically embedded into the stranding gap of the steel strand bundle. At the same time, the pressure blocks radially press the steel strand bundle body. This double fixing structure effectively improves the bonding strength between the fixing sleeve and the steel strand bundle. It can prevent the two from separating during hydraulic tensioning operations and ensure the uniform transmission of load during tensioning, thereby ensuring the stable implementation of the hydraulic system operation.

[0016] 2. In this utility model, after both ends of the steel strand bundle are locked with the wire sleeves, it is manually determined whether the steel tie rod and the outer plate are firmly connected. If the answer is yes, two hydraulic cylinders are started. Then the cylinder body of the hydraulic cylinder squeezes the block through the baffle, and the moving end of the hydraulic cylinder pulls the steel strand bundle through the outer plate, steel tie rod, and wire sleeve. This realizes the hydraulic tensioning operation, so that the block forms a strong pre-compression stress field before service, effectively improving the crack resistance of the structure. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the masonry mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the tightening mechanism of this utility model;

[0020] Figure 4 This is a split diagram of the tightening mechanism of this utility model;

[0021] Figure 5 This is a schematic diagram of the clamping mechanism of this utility model.

[0022] Figure label:

[0023] 100. Masonry structure; 110. Masonry block; 120. Steel strand bundle;

[0024] 200. Tightening mechanism; 210. Wire fixing sleeve; 220. Steel tie rod; 230. Pad block; 240. U-shaped opening; 250. Threaded rod; 260. Locking assembly; 261. Pressure block; 262. Insert shaft;

[0025] 300. Clamping mechanism; 310. Baffle; 320. Hydraulic cylinder; 330. Outer plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0027] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0028] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing an external prestressed structure for reinforcing masonry structures.

[0029] Example 1:

[0030] Combination Figure 1-5 As shown, the external prestressed structure for reinforcing masonry structure houses provided by this utility model includes a masonry mechanism 100 and a tightening mechanism 200. The masonry mechanism 100 includes a block 110 and a plurality of steel strand bundles 120 that pass through both ends of the block 110 laterally.

[0031] The tightening mechanism 200 includes multiple wire fixing sleeves 210 movably sleeved at both ends of multiple steel strand bundles 120, steel pull rods 220 connected to the outer wall of the wire fixing sleeves 210, two pads 230 attached to the top and bottom of the steel strand bundles 120, a U-shaped opening 240 provided on the wire fixing sleeves 210, a threaded rod 250 movably provided inside the U-shaped opening 240, and two sets of locking components 260 provided at both ends of the threaded rod 250. Both pads 230 are fixedly connected to the inner wall of the wire fixing sleeves 210.

[0032] Furthermore, the external thread on the threaded rod 250 is configured as two segments with opposite directions of rotation. The shape design of the threaded rod 250 can simultaneously drive the two sets of locking components 260 to move outward, ensuring that the steel strand bundle 120 can be fixed.

[0033] Furthermore, multiple levers are fixed to the outer side of the threaded rod 250. The levers are evenly spaced and arranged in a ring. The levers are located inside the U-shaped opening 240. The levers are provided to facilitate the operator to rotate the threaded rod 250.

[0034] Furthermore, the locking assembly 260 is composed of a pressure block 261 and a insertion shaft 262. The pressure block 261 slides through the inner wall of the U-shaped opening 240 and is screwed to the threaded rod 250. The insertion shaft 262 is located inside the wire fixing sleeve 210 and is fixedly connected to the pressure block 261. The insertion shaft 262 passes through the wire body of the steel strand bundle 120. The structural design of the locking assembly 260 can both fasten the steel strand bundle 120 and press the wire body of the steel strand bundle 120 firmly. With double reinforcement, the connection between the wire fixing sleeve 210 and the steel strand bundle 120 is improved.

[0035] Example 2:

[0036] Combination Figure 4 As shown, based on Embodiment 1, the outer end of the insert shaft 262 is set to be tapered, the insert shaft 262 is made of alloy material, and the shape design of the insert shaft 262 makes it easy to insert the insert shaft 262 into the wire body of the steel strand bundle 120.

[0037] Example 3:

[0038] Combination Figure 1 and Figure 5As shown, in the above embodiment, both ends of the block 110 are provided with a fastening mechanism 300. The fastening mechanism 300 includes a baffle 310 attached to one end of the block 110, an outer plate 330 disposed outside the baffle 310, and two hydraulic cylinders 320 connected between the baffle 310 and the outer plate 330. The two hydraulic cylinders 320 are connected in series. The outer ends of three adjacent steel tie rods 220 are fixed to the inner sidewall of the outer plate 330. Both ends of the steel strand bundle 120 are locked with wire sleeves. After step 210, it is manually determined whether the steel tie rod 220 and the outer plate 330 are firmly connected. If the answer is yes, two hydraulic cylinders 320 are activated. Then, the cylinder body of the hydraulic cylinder 320 squeezes the block 110 through the baffle 310. The moving end of the hydraulic cylinder 320 pulls the steel strand bundle 120 through the outer plate 330, the steel tie rod 220, and the wire fixing sleeve 210, thereby realizing the hydraulic tensioning operation, so that the block 110 forms a strong pre-compression stress field before service, effectively improving the crack resistance of the structure.

[0039] Furthermore, the baffle 310 has multiple circular openings suitable for the steel strand bundle 120 to pass through. The diameter of the circular openings is larger than the diameter of the steel strand bundle 120. The design of the circular openings and their dimensions ensures that the baffle 310 will not affect the pulling of the steel strand bundle 120.

[0040] The working principle and usage process of this utility model are as follows: After the steel strand bundle 120 passes through the block 110 laterally, the fixing sleeve 210 is fitted onto the outer end of the steel strand bundle 120. By rotating the threaded rod 250, the two pressure blocks 261 are driven to move in opposite directions and insert into the fixing sleeve 210. Then, the insert shaft 262 is vertically embedded into the twisting gap of the steel strand bundle 120. At the same time, the pressure blocks 261 radially press the steel strand bundle 120. This double fixing structure (the embedded fixing of the insert shaft 262 and the radial pressing of the pressure blocks 261) effectively improves the bonding strength between the fixing sleeve 210 and the steel strand bundle 120. It can prevent the two from separating during the hydraulic opening operation and ensure the uniform transmission of load during the tensioning process, thereby ensuring the stable implementation of the hydraulic system operation.

[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An external prestressed structure for reinforcing masonry structures, characterized in that, include: A masonry structure (100) includes a block (110) and a plurality of steel strand bundles (120) that run laterally through both ends of the block (110); The tightening mechanism (200) includes multiple wire fixing sleeves (210) movably sleeved at both ends of multiple steel strand bundles (120), a steel pull rod (220) connected to the outer wall of the wire fixing sleeve (210), two pads (230) fitted to the top and bottom of the steel strand bundles (120), a U-shaped opening (240) provided on the wire fixing sleeve (210), a threaded rod (250) movably provided inside the U-shaped opening (240), and two sets of locking components (260) provided at both ends of the threaded rod (250). Both pads (230) are fixedly connected to the inner wall of the wire fixing sleeve (210).

2. The external prestressed structure for reinforcing masonry structures according to claim 1, characterized in that, The external threads on the threaded rod (250) are configured as two segments with opposite directions of rotation.

3. The external prestressed structure for reinforcing masonry structures according to claim 1, characterized in that, Multiple levers are fixed to the outer side of the threaded rod (250). The levers are evenly spaced and arranged in a ring. The levers are located inside the U-shaped opening (240).

4. The external prestressed structure for reinforcing masonry structures according to claim 1, characterized in that, The locking assembly (260) consists of a pressure block (261) and a pin (262). The pressure block (261) slides through the inner wall of the U-shaped opening (240). The pressure block (261) is screwed to the threaded rod (250). The pin (262) is located inside the wire fixing sleeve (210) and is fixed to the pressure block (261). The pin (262) passes through the wire body of the steel strand bundle (120).

5. The external prestressed structure for reinforcing masonry structures according to claim 4, characterized in that, The outer end of the insert shaft (262) is tapered, and the insert shaft (262) is made of alloy material.

6. The external prestressed structure for reinforcing masonry structures according to claim 1, characterized in that, Both ends of the block (110) are provided with a fastening mechanism (300). The fastening mechanism (300) includes a baffle (310) attached to one end of the block (110), an outer plate (330) located outside the baffle (310), and two hydraulic cylinders (320) connected between the baffle (310) and the outer plate (330). The two hydraulic cylinders (320) are connected in series, and the outer ends of three adjacent steel tie rods (220) are fixed to the inner sidewall of the outer plate (330).

7. The external prestressed structure for reinforcing masonry structures according to claim 6, characterized in that, The baffle (310) has multiple circular openings suitable for the steel strand bundle (120) to pass through, and the diameter of the circular openings is larger than the diameter of the steel strand bundle (120).

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