Detachable temporary supporting truss and mounting structure thereof

Abstract

The utility model belongs to the technical field of trusses, and discloses a detachable temporary supporting truss and a mounting structure thereof, the detachable temporary supporting truss comprises upper chord steel and lower chord steel which are vertically distributed in parallel, a reinforcing member is connected between the upper chord steel and the lower chord steel, and the length of the upper chord steel is larger than that of the lower chord steel. The end face of any end of the upper chord steel and the end face of the corresponding end of the lower chord steel are not located in the same vertical plane, and fixing holes are formed in the two ends of the upper chord steel. The supporting truss formed by connecting the upper chord steel, the lower chord steel, the vertical steel and the inclined web steel is firm in structure, good in stability, small in deflection change and capable of being prefabricated in a factory in advance according to the size of a construction drawing, and compared with a traditional full steel pipe supporting structure, site construction erecting time is greatly saved; in addition, the installation technology requirement is not high, operation is easy and convenient, and practicability is high.

Description

Technical Field

[0001] This utility model belongs to the field of truss technology, specifically relating to a detachable temporary support truss and its installation structure. Background Technology

[0002] As a green and environmentally friendly material, steel is increasingly being used in the main structure design of buildings such as office buildings, teaching buildings, laboratories, factories, and residences. Currently, after the main steel frame structure is completed, a large area of ​​truss floor slabs needs to be laid between adjacent steel beams. For spans exceeding three meters, temporary supports are required. The current conventional method for erecting temporary supports is a full-span steel pipe support structure. Specifically, a vertical steel pipe support is installed every two meters along the length, and a horizontal steel pipe connection is made every three meters along the height to ensure successful installation of the truss floor slab and successful concrete pouring, meeting the requirements for downward deflection. This method has certain technical drawbacks: 1. It uses a large amount of steel pipes, all of which are assembled and dismantled on-site, resulting in slow construction progress; 2. It requires a professional construction team with high skill requirements; 3. From the erection of the supports to the demolding of the upper concrete slab, there is no working surface, delaying the construction schedule. These three disadvantages have a certain impact on project management and costs. Therefore, this utility model proposes a detachable temporary support truss and its installation structure to solve the above problems. Utility Model Content

[0003] This utility model addresses the shortcomings of the prior art by providing a detachable temporary support truss and its installation structure. It uses a prefabricated steel truss with fixing holes at both ends, enabling rapid assembly with the steel beams on both sides. The construction operation is simple and quick, effectively replacing the traditional full-span steel pipe support. After installation, it does not affect the working surface of the lower floors at all, saving time on the erection, dismantling, and concrete demolding of the steel pipe support, which is beneficial to the construction period.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A detachable temporary support truss includes an upper chord steel and a lower chord steel distributed in parallel. A reinforcing member connects the upper chord steel and the lower chord steel. The length of the upper chord steel is greater than the length of the lower chord steel, and the end face of any end of the upper chord steel and the corresponding end face of the lower chord steel are not in the same vertical plane. Fixing holes are provided at both ends of the upper chord steel.

[0006] Preferably, the reinforcing member includes multiple vertical steel bars and multiple diagonal web steel bars, with the multiple vertical steel bars and multiple diagonal web steel bars distributed alternately.

[0007] Preferably, the diagonal webs on both sides of each vertical steel are arranged symmetrically.

[0008] Preferably, each of the vertical steel bars forms a triangular structure with its adjacent diagonal web steel bar and the upper chord steel bar or the lower chord steel bar, and each of the vertical steel bars is perpendicular to the upper chord steel bar and the lower chord steel bar.

[0009] Preferably, the upper chord steel, lower chord steel, vertical steel, and diagonal web steel are all angle steel.

[0010] A detachable temporary support truss installation structure includes a detachable temporary support truss and two steel beams. The detachable temporary support truss is located between the two steel beams, and the fixing holes at each end of the truss are connected to the corresponding steel beams via matching fixing components.

[0011] Preferably, the supporting fixing components include a supporting keel, a supporting member, an adjusting nut, and fasteners. The lower end of the supporting keel is connected to the supporting member, and the upper end is threadedly connected to the adjusting nut. The upper chord steel is pressed on the adjusting nut, and its upper end is provided with fasteners. The fasteners and supporting members are tightly fitted to the flanges on the upper and lower sides of the steel beam, respectively.

[0012] Preferably, the upper end of the supporting keel is threaded with a locking nut, and the upper chord steel is located between the locking nut and the adjusting nut.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] (1) The support truss structure composed of upper chord steel, lower chord steel, vertical steel and diagonal web steel is solid, has good stability and small deflection. It can be prefabricated in the factory according to the dimensions of the construction drawings. Compared with the traditional full-span steel pipe support structure, it greatly saves the on-site construction and erection time. The upper chord steel has fixing holes at both ends, which can realize the rapid assembly with the steel beam. The installation technology requirements are not high, the operation is simple and convenient, and the practicality is strong.

[0015] (2) The support truss of this utility model is suspended and erected. After installation, it does not affect the working surface of the lower floor at all. It can save the time of erection, dismantling and concrete demolding of conventional steel pipe support, which is beneficial to the construction period. Moreover, after the construction is completed, the support truss can be dismantled and recycled, which is economical and environmentally friendly. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the detachable temporary support truss structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the detachable temporary support truss of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the supporting keel, supporting member, adjusting nut and locking nut of this utility model;

[0020] In the diagram: 1. Upper chord steel, 2. Lower chord steel, 3. Fixing hole, 4. Vertical steel, 5. Sloping web steel, 6. Steel beam, 601. Wing plate, 602. Web plate, 7. Support keel, 8. Support piece, 9. Adjusting nut, 10. Fastener, 11. Locking nut. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "middle", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] like Figure 1As shown, a detachable temporary support truss includes an upper chord steel 1 and a lower chord steel 2 arranged parallel to each other. A reinforcing member connects the upper and lower chord steels. The reinforcing member includes multiple vertical steels 4 and multiple diagonal web steels 5. The vertical steels and diagonal web steels are alternately distributed. Each vertical steel is perpendicular to both the upper and lower chord steels. The diagonal web steels on both sides of each vertical steel are symmetrically arranged. Each vertical steel forms a triangular structure with its adjacent diagonal web steel and the upper or lower chord steel, improving the strength and stability of the connection structure between the upper and lower chord steels. In this embodiment, the reinforcing member includes three vertical steels and four diagonal web steels, arranged alternately. The three vertical steels are evenly spaced, and the distance between adjacent vertical steels in this embodiment is 500mm. The upper chord is longer than the lower chord, and the end face of either end of the upper chord is not in the same vertical plane as the corresponding end face of the lower chord. This facilitates the installation of the detachable temporary support truss between the two steel beams and avoids the lower chord from contacting the steel beam, which would affect installation. Fixing holes 3 are provided at both ends of the upper chord, with the center of each hole 30mm from the edge. These holes are used to connect to the steel beam, facilitating assembly and disassembly. The upper chord, lower chord, vertical steel, and diagonal web steel are all angle steel. Angle steel is easy to handle and can be prefabricated in the factory using welding according to the drawings, saving on-site construction time and effectively replacing traditional full-span steel pipe supports. This utility model's detachable temporary support truss exhibits good structural stability and minimal deflection.

[0025] like Figure 2 As shown, a detachable temporary support truss installation structure includes a detachable temporary support truss and two steel beams 6. The detachable temporary support truss is located between the web plates 602 of the two steel beams 6, and the fixing holes at each end of the truss are connected to the corresponding side steel beams via matching fixing components. (Combined with 2 and...) Figure 3 As shown, the supporting fixing components include a supporting keel 7, a supporting member 8, an adjusting nut 9, and a fastener 10. The lower end of the supporting keel is connected to the supporting member, and the upper end is threadedly connected to the adjusting nut. The upper chord steel is pressed against the adjusting nut, and its upper end is provided with a fastener. The fastener and the supporting member are tightly fitted to the flanges 601 on the upper and lower sides of the steel beam, respectively. The adjusting nut allows for fine adjustment of the height of the detachable temporary support truss according to actual needs, ensuring that the fastener is tightly fitted to the upper flange of the steel beam, and the supporting member is tightly fitted to the lower flange of the steel beam. In this embodiment, the supporting member is made of angle steel, and the fastener is made of construction timber. The upper end of the supporting keel is threadedly connected to a locking nut 11, and the upper chord steel is located between the locking nut and the adjusting nut. The locking nut can effectively fix the position of the upper chord steel.

[0026] The working principle of this utility model is as follows:

[0027] like Figures 1 to 3As shown, the angle steel used in this invention is welded into a stable supporting truss. Using matching fixing components, the supporting truss is installed between the web plates 602 of two adjacent steel beams 6, serving as temporary support. This replaces the conventional full-span steel pipe support structure, significantly reducing the amount of steel pipe used, providing good stability, and minimizing deflection. Furthermore, installation is simple and convenient, requiring no professional scaffolders. After installation, it does not affect the work surface of the lower floors, saving time on the erection, dismantling, and concrete demolding of conventional steel pipe supports, thus benefiting the construction schedule. After construction is completed, the fasteners 10 can be removed, and the supporting truss can be disassembled from the two steel beams 6 for reuse, making it energy-saving and environmentally friendly.

[0028] Combination Figures 1 to 3 As shown, the construction steps for installing the detachable temporary support truss of this utility model are as follows:

[0029] (1) Place the prefabricated detachable temporary support truss (prefabricated according to the actual requirements of the construction site) on the lower floor and assign a dedicated person to be responsible for the installation (one person on each side, operating simultaneously).

[0030] (2) Pass the upper end of the supporting keel 7 through the fixing hole 3 at the end of the upper chord steel 1 from bottom to top;

[0031] (3) Place the support member 8 at the bottom of the supporting keel 7 on the wing plate 601 on the lower side of the steel beam 6, rotate the adjusting nut 9 to a suitable height, press the upper chord steel 1 on the adjusting nut 9, and then rotate the locking nut 11 to lock and fix it.

[0032] (4) Insert the fastener (building timber) 10 between the upper wing plate 601 and the upper chord steel 1 of the steel beam 6, and use a wrench or hammer to tap it to make it secure and achieve the effect of locking, so that the upper and lower ends of the detachable temporary support truss are tightly embedded between the upper and lower wing plates 601 of the steel beam 6.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all changes falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

Claims

1. A detachable temporary support truss, characterized in that: It includes an upper chord steel and a lower chord steel distributed in parallel. A reinforcing member connects the upper chord steel and the lower chord steel. The length of the upper chord steel is greater than the length of the lower chord steel. The end face of either end of the upper chord steel and the corresponding end face of the lower chord steel are not in the same vertical plane. Fixing holes are opened at both ends of the upper chord steel.

2. The detachable temporary support truss as described in claim 1, characterized in that: The reinforcing member includes multiple vertical steel bars and multiple diagonal web steel bars, which are distributed alternately.

3. A detachable temporary support truss as described in claim 2, characterized in that: The diagonal webs on both sides of each vertical steel are symmetrically arranged.

4. A detachable temporary support truss as described in claim 2, characterized in that: Each of the vertical steel bars forms a triangular structure with its adjacent diagonal web steel bar and its upper or lower chord steel bar, and each of the vertical steel bars is perpendicular to the upper and lower chord steel bars.

5. A detachable temporary support truss as described in claim 2, characterized in that: The upper chord steel, lower chord steel, vertical steel, and diagonal web steel are all angle steel.

6. A detachable temporary support truss installation structure, characterized in that: Includes a detachable temporary support truss as described in any one of claims 1-5, and two steel beams, wherein the detachable temporary support truss is located between the two steel beams, and the fixing hole at each end of the truss is connected to the corresponding steel beam via a matching fixing component.

7. The detachable temporary support truss installation structure as described in claim 6, characterized in that: The supporting fixing components include a supporting keel, a supporting member, an adjusting nut, and fasteners. The lower end of the supporting keel is connected to the supporting member, and the upper end is threadedly connected to the adjusting nut. The upper chord steel is pressed on the adjusting nut, and its upper end is provided with fasteners. The fasteners and supporting members are tightly fitted to the flanges on the upper and lower sides of the steel beam, respectively.

8. The detachable temporary support truss installation structure as described in claim 7, characterized in that: The upper end of the supporting keel is threaded with a locking nut, and the upper chord steel is located between the locking nut and the adjusting nut.

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