Same-layer bearing hanging type truss
By designing the same-layer load-bearing hanging trusses, and using vertical booms to connect the upper and lower trusses, the problem that the load of the existing building exceeds the original design value during renovation is solved, and structural reinforcement is achieved without affecting the same-layer and upper and lower spaces, simplifying the construction process and providing laying space for equipment pipelines.
Patent Information
- Application Number
- CN202323480114.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-20
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2033-12-20
AI Technical Summary
When the existing buildings are converted into UPS equipment rooms or battery rooms, large loads need to be added, resulting in floor loads exceeding the original design value. The original beam and slab components cannot meet the new bearing capacity requirements, and conventional reinforcement methods have a great impact on the adjacent rooms and lower rooms on the same floor.
A same-layer load-bearing hanging truss is designed, mainly composed of upper-layer fasting truss and lower-layer fasting trusses. The upper and lower-layer trusses are connected through vertical booms to form a reinforced structure to avoid the impact on adjacent spaces on the same floor and the upper and lower floor spaces.
Reinforcement on the same floor is achieved, avoiding the impact on adjacent rooms and upper and lower spaces on the same floor, simplifying the construction process, shortening the construction period, and providing laying space for equipment pipelines.
Smart Images
Figure CN222649544U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building structure design, and in particular relates to a same-layer load-bearing hanging truss. Background Art
[0002] Currently, there is an increasing demand to change the functional use of rooms in existing buildings. For example, with the continuous development of new energy technologies, existing rooms need to be converted into UPS equipment rooms, battery rooms, etc. These changes in room function often require a significant increase in load, causing the floor load to exceed the original design load value of the existing building. The original beams and slabs cannot meet the bearing capacity or deformation requirements after the room's functional change. Therefore, the structural components of the room need to be reinforced. However, conventional structural reinforcement methods have a significant impact on adjacent rooms on the same floor or rooms below. For example, the relocation of equipment pipelines may cause the functional use of the room to be interrupted, and the space occupied by formwork or construction platforms below the room to be renovated can have a significant impact on the normal use of adjacent rooms and even the entire building. Summary of the Invention
[0003] The technical problem to be solved by the utility model is to provide a same-layer load-bearing hanging truss with simple structure, low construction difficulty and short construction period to avoid affecting adjacent spaces on the same layer and spaces on upper and lower floors.
[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:
[0005] The same-layer load-bearing hanging truss is mainly composed of an upper hollow-web truss and a lower hollow-web truss. One end of the lower hollow-web truss is flush with one end of the upper hollow-web truss, and the other end of the lower hollow-web truss is connected to the upper hollow-web truss through a vertical hanger.
[0006] The upper holier-web truss and the lower holier-web truss are both composed of an upper chord, a lower chord and a web.
[0007] The web members are bolted or welded between the top and bottom chords.
[0008] The upper and lower chords are both rectangular steel tubes, and the webs are angle steels.
[0009] The vertical hanger is a rectangular steel tube tie rod, and the two ends of the rectangular steel tube tie rod are respectively connected to the upper hollow truss and the lower hollow truss through flanges and node plates.
[0010] The upper holier-web truss and / or the lower holier-web truss are formed by splicing a plurality of unit trusses.
[0011] The upper holler truss and the lower holler truss are parallel to each other.
[0012] The upper holler truss is longer than the lower holler truss.
[0013] The two ends of the upper hollow truss are fixed to the structural columns at both ends by post-anchoring, and one end of the lower hollow truss is fixed to the structural column.
[0014] Reinforced webs are added at the points where equipment pipes pass through the upper and lower hollow-web trusses.
[0015] In response to the current problem of the renovation of existing buildings bearing new additional loads on the same floor, the inventor designed a same-floor load-bearing hanging truss, which is mainly composed of an upper hollow truss and a lower hollow truss. One end of the lower hollow truss is flush with one end of the upper hollow truss, and the other end of the lower hollow truss is connected to the upper hollow truss via a vertical hanger. The utility model can reinforce the upper and lower trusses connected by vertical hangers on the same floor, and transfer the floor load of the renovated space to the structural columns on the same floor, avoiding the impact of occupying adjacent rooms on the same floor and the upper and lower floors on the normal use of the building, and the abdominal cavity in the truss can be used as a space for laying equipment pipelines. In addition, the hanging truss is easy to install and simple to manufacture, and can be widely used to bear new additional loads on the same floor. It is a new type of structural load-bearing device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model of the same-layer load-bearing hanging truss.
[0017] Figure 2 This is a schematic diagram of the use status of the utility model's same-layer load-bearing hanging truss
[0018] In the figure: 1 upper holder truss, 2 lower holder truss, 3 vertical hanger, 4 flange, 5 upper chord, 6 lower chord, 7 web member, 8 structural column, 9 floor slab, 10 equipment pipe, 11 beam, 12 aisle, 13 partition wall, 14 room, 15 load. DETAILED DESCRIPTION
[0019] 1. Basic structure
[0020] As shown in the figure, the same-story load-bearing hanging truss of the present invention is primarily composed of an upper holier-web truss 1 and a lower holier-web truss 2. Each holier-web truss is composed of an upper chord 5, a lower chord 6, and a web 7. The upper and lower chords are rectangular steel tubes, while the webs are angle steel. The webs are bolted or welded between the upper and lower chords.
[0021] The upper and lower Hollower trusses are parallel (in this example, the upper Hollower trusses are longer than the lower Hollower trusses). One end of the lower Hollower truss is flush with one end of the upper Hollower truss, and the other end of the lower Hollower truss is connected to the upper Hollower truss via a vertical hanger 3. The vertical hanger is a rectangular steel tube tie rod, and its ends are connected to the upper Hollower truss and the lower Hollower truss respectively via a flange 4 and a gusset plate.
[0022] The upper hollow-web truss or the lower hollow-web truss can be formed by splicing multiple unit trusses.
[0023] 2. Construction and use
[0024] (1) The upper and lower hollow trusses need to be aligned with the structural columns 8 at their ends, and holes should be pre-drilled in the filling wall through which the upper and lower chord steel rectangular tubes of the trusses need to pass.
[0025] (2) At the supports of the two trusses, embedded parts are added to the structural columns by post-anchoring, and steel corbels are set on the embedded parts as supports for the trusses.
[0026] (3) At the supports at both ends of the upper hollow truss, one end is welded to the newly added steel corbel, and the other end is provided with a sliding support and placed on another newly added steel corbel. Since the connection between the truss and the newly added corbel allows a gap between it and the original structural column, the error in the processing and manufacturing of the steel structure can be absorbed. In order to facilitate transportation and passing through walls and existing pipelines, the square tubes of the upper and lower chords can be divided into 2 to 3 sections, which are then bolted or welded together after positioning.
[0027] (4) After the upper and lower chords of the upper hollow truss are in place and connected, the webs are spliced to the node plates by quick splicing to form an integrally stressed truss.
[0028] (5) A vertical hanger is set above the column-free end of the lower hollow truss. The upper part of the vertical hanger is connected to the node of the upper truss through flange bolts and node plates, and the lower part of the vertical hanger is connected to the end node of the lower truss through flange bolts and node plates, which is conducive to installation in a small space and can achieve rapid splicing.
[0029] (6) An embedded part is added to the other end of the lower hollow truss by post-anchoring. Steel plates or angle steels are welded on the embedded parts as connectors for the upper and lower chord supports of the truss. The steel rectangular tubes of the upper and lower chords are directly welded to the support connectors.
[0030] (7) After the main body of the added hollow truss is completed, purlins and floor steel plates can be arranged between the lower trusses of each frame. The added load can be applied to the new floor slab and hollow truss below. The load is transferred to the original structural columns through the truss, reducing the impact on the original beams and slabs and avoiding the occupation of adjacent spaces on the same floor and the spaces above and below. The belly space formed by the truss can be used for the arrangement of equipment pipelines. In order to solve the problem of collision with existing pipelines, reinforcing web rods can be added. During use, rubber pads can be installed between the truss and the floor slab of the current floor.
[0031] The utility model can be manufactured in divisible units and then assembled on site, which is suitable for different installation conditions. Bolt connections can be used between components to achieve rapid installation, thereby avoiding the use of on-site welding technology. It is more suitable for renovation projects of buildings with strict fire protection requirements.
Claims
1. A same-layer load-bearing hanging truss, characterized in that It is mainly composed of an upper hollow truss and a lower hollow truss. One end of the lower hollow truss is flush with one end of the upper hollow truss, and the other end of the lower hollow truss is connected to the upper hollow truss through a vertical hanger.
2. The same-layer load-bearing hanging truss according to claim 1 is characterized in that: The upper hollow-web truss and the lower hollow-web truss are both composed of an upper chord, a lower chord and a web.
3. The same-layer load-bearing hanging truss according to claim 2 is characterized in that: The web member is connected between the upper chord and the lower chord by bolts or welding.
4. The same-layer load-bearing hanging truss according to claim 3 is characterized in that: The upper chord and the lower chord are both rectangular steel tubes, and the web is angle steel.
5. The same-layer load-bearing hanging truss according to claim 1, characterized in that: The vertical hanger is a rectangular steel tube tie rod, and the two ends of the rectangular steel tube tie rod are respectively connected to the upper hollow truss and the lower hollow truss through flanges and node plates.
6. The same-layer load-bearing hanging truss according to claim 1, characterized in that: The upper hollow-web truss and / or the lower hollow-web truss are formed by splicing a plurality of unit trusses.
7. The same-layer load-bearing hanging truss according to claim 1, characterized in that: The upper hollow-web truss and the lower hollow-web truss are parallel up and down.
8. The same-layer load-bearing hanging truss according to claim 1, characterized in that: The upper hollow-web truss is longer than the lower hollow-web truss.
9. The same-layer load-bearing hanging truss according to claim 1, characterized in that: The two ends of the upper hollow-web truss are fixed to the structural columns at the two ends by post-anchoring, and one end of the lower hollow-web truss is fixed to the structural column.
10. The same-layer load-bearing hanging truss according to claim 1, characterized in that: Reinforced web bars are additionally provided at the locations where equipment pipelines pass through the upper hollow-web trusses and the lower hollow-web trusses.