Temporary reinforcing device for steel structure in structural replacement process

Abstract

The utility model discloses a kind of temporary reinforcing devices of steel structure in structural replacement process, including two side vertical beams and roof beam, two side vertical beams and roof beam constitute portal frame structure, it is inclined to be provided with an outer connection inclined strut component between the roof beam and two side vertical beams, the outer connection inclined strut component is reinforced and connected by snap ring component between the roof beam, the outer connection inclined strut component both ends are detachably connected on roof beam or side vertical beam by sleeve pipe component, and detachably connected between the outer connection inclined strut component and sleeve pipe component by connecting component;The outer connection inclined strut component includes first inclined strut and second inclined strut, and the first inclined strut is adjustably installed in the second inclined strut.The reinforcing device is stable in whole and convenient to install and disassemble.

Description

Technical Field

[0001] This utility model relates to the field of steel structure construction technology, specifically to a temporary steel structure reinforcement device during structural replacement. Background Technology

[0002] In functional upgrades or structural renovations of existing buildings, it is often necessary to partially demolish and rebuild the original structure to achieve a structural transformation. In such projects, to meet the operational requirements of subsequent new construction and structural replacement, the original structure is typically demolished to reduce its weight, retaining only a small number of original structural components, such as parts of the roof, attic frame beams, slabs, columns, and frame columns. However, this weight-reduction demolition method significantly increases construction difficulty: on the one hand, the safety and stability of the original structure are challenged due to the limited number of retained components; on the other hand, the integrity of the new structure must also be effectively guaranteed, thus requiring corresponding reinforcement measures. Furthermore, construction often follows the sequence of "demolition and weight reduction carried out layer by layer from top to bottom, and new structure construction carried out layer by layer from bottom to top," further exacerbating the complexity of structural stress during construction.

[0003] In particular, during the conversion from frame structures to shear wall structures, the overall stability and ease of installation and dismantling of the temporary steel reinforcement support structure used to ensure construction safety and temporarily enhance structural stability become core issues affecting project safety and efficiency. Therefore, developing a reliable and efficient temporary steel reinforcement device for these special conditions during structural replacement is of significant practical importance. Utility Model Content

[0004] The purpose of this invention is to provide a temporary steel structure reinforcement device during structural replacement, which solves the problem of reliable support of the original steel structure during the conversion from a frame structure to a shear wall structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A temporary steel structure reinforcement device for structural replacement includes two side vertical beams and a top beam, which together form a portal frame structure. An external connecting diagonal brace assembly is inclinedly arranged between the top beam and each of the two side vertical beams. The external connecting diagonal brace assembly is reinforcedly connected to the top beam by a snap ring assembly. Both ends of the external connecting diagonal brace assembly are detachably connected to the top beam or the side vertical beam by sleeve assemblies. The external connecting diagonal brace assembly and the sleeve assembly are detachably connected by a connecting assembly. The external connecting diagonal brace assembly includes a first diagonal brace and a second diagonal brace, with the first diagonal brace adjustablely installed inside the second diagonal brace.

[0007] Preferably, the retaining ring assembly includes an upper pressure plate, a lower pressure plate, a half ring, a first retaining ring, a second retaining ring, and a steel cable. The lower pressure plate is detachably installed on the top of the second diagonal brace by reinforcing bolts, and the upper pressure plate is detachably installed on the bottom of the top beam by reinforcing bolts. A half ring is installed on both the upper and lower pressure plates. A first retaining ring is engaged on the half ring installed on the upper pressure plate, and a second retaining ring is engaged on the half ring installed on the lower pressure plate. The first retaining ring and the second retaining ring are connected by a steel cable.

[0008] Preferably, the sleeve assembly includes a first sleeve frame and a second sleeve frame. Both the first sleeve frame and the second sleeve frame are U-shaped and have a groove inside. The first sleeve frame and the second sleeve frame are connected as a whole by mounting bolts and connected to the side vertical beam or the top beam. Mortar is poured into the groove.

[0009] Preferably, one end of the first diagonal brace is detachably connected to one of the first sleeve supports via a connecting assembly, and one end of the second diagonal brace is also detachably connected to another of the first sleeve supports via a connecting assembly.

[0010] Preferably, the connecting assembly includes two L-shaped plates, which are detachably mounted on the first sleeve frame by fasteners, and the first diagonal brace and the second diagonal brace are both hinged between the two L-shaped plates.

[0011] Preferably, an elongated hole is provided on the side wall of the first diagonal brace, and an elongated hole is also provided on the side wall of the second diagonal brace. The first diagonal brace is sleeved inside the second diagonal brace and is adjustablely connected at the elongated hole by a fastener.

[0012] In this utility model, the old beams (top beams) and old columns (side vertical beams) are reinforced and installed using external diagonal bracing components, and are detachably connected using sleeve components, making disassembly and assembly convenient.

[0013] The first and second sets of pipe racks were installed on the old beams and columns (top beam and side vertical beam) using multiple mounting bolts. The old beams and columns were then fixed. Next, one end of the first diagonal brace was connected to the first set of pipe racks installed on the top beam using a connecting assembly, and one end of the second diagonal brace was connected to the first set of pipe racks installed on the side vertical beam using a connecting assembly. The first and second diagonal braces were then fixed and locked in place using bolts at the elongated holes. To better install the first and second sets of pipe racks on the old beams, two grooves were set up, and mortar was poured into both grooves.

[0014] With the old beams and columns securely installed, the length of the first and second diagonal braces is adjusted by changing their relative positions to better accommodate the distance between them.

[0015] An elongated hole is formed on the side wall of the first diagonal brace, and an elongated hole is also formed on the side wall of the second diagonal brace. The first diagonal brace is fitted inside the second diagonal brace and is connected in an adjustable manner at the elongated hole by bolts. During installation, the overall length is determined first, and then adjusted. During adjustment, the relative positions of the first diagonal brace and the second diagonal brace are adjusted by turning the bolts to adjust the length to suit the installation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0018] Figure 3 This is a schematic diagram of part of the structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the external connecting diagonal brace component of this utility model;

[0020] Figure 5 This is a schematic diagram of the retaining ring assembly structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the hinged connection of the second diagonal brace of this utility model;

[0022] In the diagram: 1. Side vertical beam; 2. Top beam; 3. External connecting diagonal brace assembly; 4. Clamping ring assembly; 5. Sleeve assembly; 6. Connecting assembly; 30. First diagonal brace; 31. Second diagonal brace; 40. Upper pressure plate; 41. Lower pressure plate; 42. Half ring; 43. First clamping ring; 44. Second clamping ring; 45. Steel rope; 46. Reinforcing bolt; 50. First sleeve support; 51. Second sleeve support; 52. Groove; 60. L-shaped plate. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] like Figures 1-6 The temporary steel structure reinforcement device shown in the diagram includes two side vertical beams 1 and a top beam 2, which together form a portal frame structure.

[0025] An external connecting diagonal brace assembly 3 is inclinedly installed between the top beam 2 and the two side vertical beams 1. The external connecting diagonal brace assembly 3 is reinforced and connected to the top beam 2 by a retaining ring assembly 4. Both ends of the external connecting diagonal brace assembly 3 are detachably connected to the top beam 2 or the side vertical beam 1 by a sleeve assembly 5. The external connecting diagonal brace assembly 3 and the sleeve assembly 5 are detachably connected by a connecting assembly 6.

[0026] The external diagonal bracing assembly 3 includes a first diagonal brace 30 and a second diagonal brace 31. The first diagonal brace 30 is adjustablely installed inside the second diagonal brace 31. Specifically, an elongated hole is provided on the side wall of the first diagonal brace 30, and an elongated hole is also provided on the side wall of the second diagonal brace 31. The first diagonal brace 30 is sleeved inside the second diagonal brace 31 and is adjustablely connected at the elongated hole by bolts.

[0027] One end of the first diagonal brace 30 is detachably connected to one of the first pipe supports 50 via a connecting assembly 6, and one end of the second diagonal brace 31 is also detachably connected to another of the first pipe supports 50 via the connecting assembly 6. Specifically, the connecting assembly 6 includes two L-shaped plates 60, which are detachably mounted on the first pipe supports 50 via fasteners. Both the first diagonal brace 30 and the second diagonal brace 31 are hinged between the two L-shaped plates 60 via hinge shafts.

[0028] The retaining ring assembly 4 includes an upper pressure plate 40, a lower pressure plate 41, a half-ring 42, a first retaining ring 43, a second retaining ring 44, and a steel cable 45. The lower pressure plate 41 is detachably mounted on the top of the second diagonal brace 31 by a reinforcing bolt 46. The upper pressure plate 40 is detachably mounted on the bottom of the top beam 2 by a reinforcing bolt 46. A half-ring 42 is mounted on both the upper pressure plate 40 and the lower pressure plate 41. A first retaining ring 43 is engaged with the half-ring 42 mounted on the upper pressure plate 40, and a second retaining ring 44 is engaged with the half-ring 42 mounted on the lower pressure plate 41. The first retaining ring 43 and the second retaining ring 44 are connected by a steel cable 45.

[0029] The sleeve assembly 5 includes a first sleeve bracket 50 and a second sleeve bracket 51. Both the first sleeve bracket 50 and the second sleeve bracket 51 are U-shaped and each has a slot 52 inside. The first sleeve bracket 50 and the second sleeve bracket 51 are connected as a whole by mounting bolts and connected to the side vertical beam 1 or the top beam 2.

[0030] Mortar is poured into the groove 52. Two mortar grouts are fixedly connected to the left and right sides of the top beam 2, and two mortar grouts are fixedly connected to the left and right sides of the side vertical beam 1. The mortar is M10 mortar or concrete. At the elevation position of the newly built structural slab, M12 diameter internal expansion bolts are inserted around the retained frame columns and driven into the new structural slab. A 300mm wide post-cast strip is reserved at the junction of the old beam and the old column, and a 100mm thick M10 mortar or concrete of the same strength grade as the floor slab is poured to temporarily fill it to ensure the stability of the side vertical beam 1 and the top beam 2. After the new structure is completed, it will be removed together with the side vertical beam 1 and the top beam 2. Some beams will be in a cantilever state. The support system under this part of the beam will not be removed for the time being. The support system under the beam will be removed when the strength of the supplementary structure reaches the design requirements.

[0031] The above embodiments are merely illustrative of the concept and implementation of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical solutions without substantial changes are still within the scope of protection.

Claims

1. A temporary steel structure reinforcement device during structural replacement, comprising two side vertical beams (1) and a top beam (2), wherein the two side vertical beams (1) and the top beam (2) constitute a portal frame structure, characterized in that: An external connecting diagonal brace assembly (3) is inclinedly provided between the top beam (2) and the two side vertical beams (1). The external connecting diagonal brace assembly (3) is reinforced and connected to the top beam (2) by a snap ring assembly (4). Both ends of the external connecting diagonal brace assembly (3) are detachably connected to the top beam (2) or the side vertical beam (1) by a sleeve assembly (5). The external connecting diagonal brace assembly (3) is detachably connected to the sleeve assembly (5) by a connecting assembly (6). The external connecting diagonal brace assembly (3) includes a first diagonal brace rod (30) and a second diagonal brace rod (31). The first diagonal brace rod (30) is adjustablely installed inside the second diagonal brace rod (31).

2. The temporary steel structure reinforcement device during structural replacement according to claim 1, characterized in that: The clasp assembly (4) includes an upper pressure plate (40), a lower pressure plate (41), a half ring (42), a first clasp (43), a second clasp (44), and a steel cable (45). The lower pressure plate (41) is detachably installed on the top of the second diagonal brace (31) by a reinforcing bolt (46), and the upper pressure plate (40) is detachably installed on the bottom of the top beam (2) by a reinforcing bolt (46). A half ring (42) is installed on both the upper pressure plate (40) and the lower pressure plate (41). A first clasp (43) is engaged on the half ring (42) installed on the upper pressure plate (40), and a second clasp (44) is engaged on the half ring (42) installed on the lower pressure plate (41). The first clasp (43) and the second clasp (44) are connected by a steel cable (45).

3. The temporary steel structure reinforcement device during structural replacement according to claim 1, characterized in that: The sleeve assembly (5) includes a first sleeve frame (50) and a second sleeve frame (51). Both the first sleeve frame (50) and the second sleeve frame (51) are U-shaped and each has a groove (52) inside. The first sleeve frame (50) and the second sleeve frame (51) are connected as a whole by mounting bolts and connected to the side vertical beam (1) or the top beam (2). Mortar is poured into the groove (52).

4. The temporary steel structure reinforcement device during structural replacement according to claim 3, characterized in that: One end of the first diagonal brace (30) is detachably connected to one of the first sleeve brackets (50) via a connecting component (6), and one end of the second diagonal brace (31) is also detachably connected to another of the first sleeve brackets (50) via a connecting component (6).

5. The temporary steel structure reinforcement device during structural replacement according to claim 3 or 4, characterized in that: The connecting assembly (6) includes two L-shaped plates (60), which are detachably mounted on the first sleeve bracket (50) by fasteners. The first diagonal brace (30) and the second diagonal brace (31) are both hinged between the two L-shaped plates (60).

6. The temporary steel structure reinforcement device during structural replacement according to claim 1, characterized in that: An elongated hole is provided on the side wall of the first diagonal brace (30), and an elongated hole is also provided on the side wall of the second diagonal brace (31). The first diagonal brace (30) is sleeved inside the second diagonal brace (31) and is adjustablely connected at the elongated hole by fasteners.

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