Micro-damage newly-added equipment foundation structure of existing roof

Abstract

The utility model belongs to the technical field of micro-damage newly-added equipment foundation structures of existing roofs, and particularly relates to a micro-damage newly-added equipment foundation structure of an existing roof, which comprises an original structural beam, a newly-added plate lower beam is arranged on the original structural beam, and a column pier is mounted on the newly-added plate lower beam. A newly-added plate lower beam is arranged on an original structural beam, a column pier, newly-added equipment and an equipment foundation beam are installed on the newly-added plate lower beam, a column pier is arranged on an original concrete transverse plate, a connecting plate is installed on the column pier through a connecting bolt, a chemical anchor bolt is installed below the original concrete transverse plate, and a screw rod is fixed in a concrete base material drill hole in a cementing mode through a special chemical adhesive. The steel beam is installed below the connecting plate, the transverse stiffening ribs are arranged on the steel beam, the original concrete transverse plate is filled with high-strength mortar, and the transverse stiffening ribs are connected to an H-shaped steel web plate in a welded or bolted mode, so that the effect of increasing the bending rigidity and the shear bearing capacity of the section of the H-shaped steel is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of a slightly damaged new equipment foundation structure for an existing roof, in particular to a slightly damaged new equipment foundation structure for an existing roof. Background Art

[0002] With the development of my country's urbanization process, the construction industry has gradually transformed from an incremental market to a stock market, and more and more existing building renovation and reinforcement projects have emerged. Adding new equipment to existing roofs is a common demand for current reinforcement and renovation projects. The micro-damage new equipment foundation structure of the existing roof is designed to minimize the impact on the existing roof structure, while ensuring that the new equipment can be stably installed on the roof.

[0003] At present, in the prior art, a Chinese utility model patent with announcement number CN219732864U discloses a structural structure for adding a water tank foundation to an existing building with minimal damage. The patent sets support piers on the original frame beams, and the water tank beams are anchored into the support piers at both ends as the water tank foundation. This can not only avoid a large number of demolition and rebar planting to damage the original structure, but also avoid the new water box beam causing changes in the force transmission mode of the original structure. It has the advantages of clear force transmission, controllable performance and simple construction. However, in actual use of the device, the support piers must be connected to the existing main structure beams. If there are no existing structural beams near the newly added equipment, the support piers need to be placed on the existing structural beams farther away, which will cause the equipment foundation to be too long, thereby affecting the normal use function of the roof. In view of this, we propose a minimally damaged new equipment foundation structure for an existing roof. Utility Model Content

[0004] The main purpose of the utility model is to provide a minimally damaged new equipment foundation structure for an existing roof, which can solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model proposes a minimally damaged new equipment foundation structure for an existing roof, comprising an original structural beam, on which a new plate underbeam is provided, on which a pier is installed, and the pier is detachably connected with a connecting plate, which is installed by applying structural adhesive.

[0006] Preferably, the connecting plate is threadedly connected with a connecting bolt, and the connecting bolt includes an anchor plate.

[0007] Preferably, new equipment and equipment foundation beams are installed on the new plate lower beam.

[0008] Preferably, an original concrete cross plate is provided under the pier, and a chemical anchor bolt is provided under the original concrete cross plate. The chemical anchor bolt is a high-strength anchor bolt with vinyl resin as the main raw material, also known as a chemical medicine bolt. The chemical anchor bolt uses a special chemical adhesive to glue and fix the screw rod to the drilled hole of the concrete substrate to realize a composite part for anchoring the fixing part.

[0009] Preferably, a steel beam is installed below the original concrete cross plate, and a transverse stiffening rib is provided on the steel beam. The transverse stiffening rib is welded or bolted to the H-shaped steel web, thereby increasing the bending stiffness and shear bearing capacity of the H-shaped steel section.

[0010] Preferably, high-strength mortar is filled between the original concrete cross plate and the steel beam. High-strength mortar is a material mixed with cement, aggregate, additives, etc. in a special ratio. It has the characteristics of high strength, high durability, good fluidity and adhesion. It can form a solid filling layer in the concrete structure to improve the overall bearing capacity and durability of the structure. The high-strength mortar is filled between the original concrete cross plate and the steel beam to enhance the adhesion between the original concrete cross plate and the steel beam, and at the same time, the load on the plate is smoothly transferred to the steel beam.

[0011] The utility model provides a minimally damaged new equipment foundation structure for an existing roof.

[0012] Beneficial effects:

[0013] (1) The newly added equipment foundation structure of the slightly damaged existing roof is provided with a new plate underbeam on the original structural beam, on which a column pier, new equipment and equipment foundation beam are installed, and a column pier is provided on the original concrete cross plate, and a connecting plate is installed on the column pier through connecting bolts, and a chemical anchor bolt is installed under the original concrete cross plate. The screw rod is glued and fixed in the drilled hole of the concrete base material through a special chemical adhesive to realize a composite component for anchoring the fixing part.

[0014] (2) The foundation structure of the newly added equipment with minimal damage to the existing roof is equipped with a steel beam under the connecting plate. The steel beam is provided with transverse stiffening ribs, and high-strength mortar is filled between the original concrete transverse plate and the steel beam. The transverse stiffening ribs are welded or bolted to the H-shaped steel web to increase the bending stiffness and shear bearing capacity of the H-shaped steel section. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the basic planar structure of the equipment of the utility model;

[0017] Figure 2 The side view structure of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 3 It is a schematic diagram of the structure of some devices of the utility model;

[0019] Figure 4 The side view structure of the utility model is shown in FIG. Figure 2 .

[0020] Description of Figure Numbers:

[0021] 1. Newly added beam under the plate; 2. Original structural beam; 3. Column pier; 4. Newly added equipment; 5. Equipment foundation beam; 6. Original concrete cross plate; 8. Chemical anchor bolts; 9. Connecting bolts; 901, anchor plate; 10. Connecting plate; 11. Steel beam; 12. Transverse stiffening ribs; 13. High-strength mortar.

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4 The utility model proposes a minimally damaged new equipment foundation structure of an existing roof, including an original structural beam 2, on which a newly added under-slab beam 1 is arranged. The newly added under-slab beam 1 refers to a beam structure added under the floor slab in an existing building structure in order to enhance the bearing capacity of the floor slab or meet other structural requirements. This structural modification method is usually used to reinforce or expand existing buildings to adapt to new use requirements or increase bearing capacity. A column pier 3 is installed on the newly added under-slab beam 1, and the column pier 3 is detachably connected to a connecting plate 10, which is installed by applying structural adhesive.

[0025] In the embodiment of the utility model, in order to enable the newly added equipment foundation structure of the existing roof to have a better effect, specifically, the connecting plate 10 is threadedly connected with a connecting bolt 9, and the connecting bolt 9 includes an anchor plate 901. The newly added equipment 4 and the equipment foundation beam 5 are installed on the beam 1 under the newly added plate. Specifically, the equipment foundation beam 5 is connected to the pier 3, and the newly added equipment 4 is placed on the equipment foundation beam 5. The original concrete cross plate 6 is provided below the pier 3, and a chemical anchor 8 is provided below the original concrete cross plate 6. The chemical anchor 8 is a high-strength anchor bolt with vinyl resin as the main raw material, also known as a chemical medicine bolt. The chemical anchor 8 uses a special chemical adhesive to glue and fix the screw to the drilled hole in the concrete substrate to achieve a composite component for anchoring the fixing part.

[0026] Furthermore, a steel beam 11 is installed under the original concrete cross plate 6, and a transverse stiffening rib 12 is provided on the steel beam 11. By welding or bolting the transverse stiffening rib 12 to the H-shaped steel web, the bending stiffness and shear bearing capacity of the H-shaped steel section are increased. The main functions and advantages of the transverse stiffening rib 12 include improving torsional stiffness. The transverse stiffening rib 12 can effectively improve the torsional stiffness of the beam, reduce the deformation of the beam under the action of torque, ensure the overall structural stability of the beam, and reduce the vibration and deformation of the structure. Secondly, it improves the transverse strength. The transverse stiffening rib 12 increases the cross-sectional area of ​​the beam, thereby improving the overall bending and shearing capacity of the beam, and can effectively improve the transverse strength of the beam when bearing load, ensuring the beam Lasting performance and safety, followed by improving the stress-bearing performance. The setting of the transverse stiffening ribs 12 makes the stress of the beam more uniform, reduces the stress concentration of the beam under load, and improves the stress-bearing performance and service life of the beam. The original concrete cross plate 6 and the steel beam 11 are filled with high-strength mortar 13. The high-strength mortar 13 is a material mixed with cement, aggregate, additives, etc. in a special ratio. It has the characteristics of high strength, high durability, good fluidity and adhesion. It can form a solid filling layer in the concrete structure, improve the overall bearing capacity and durability of the structure, and the high-strength mortar is filled between the original concrete cross plate and the steel beam to facilitate enhancing the adhesion between the original concrete cross plate and the steel beam, and at the same time, the load on the plate is smoothly transferred to the steel beam.

[0027] In the utility model, when in use, a newly added plate underbeam 1 is provided on the original structural beam 2, and column piers 3, newly added equipment 4 and equipment foundation beams 5 are installed on the newly added plate underbeam 1, and column piers 3 are provided on the original concrete cross plate 6, and the column piers 3 are installed with connecting plates 10 through connecting bolts 9, and chemical anchors 8 are installed under the original concrete cross plate 6, and steel beams 11 are installed under the connecting plate 10, and transverse stiffening ribs 12 are provided on the steel beams 11, and high-strength mortar 13 is filled between the original concrete cross plate 6 and the steel beams 11.

[0028] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A minimally damaged new equipment foundation structure for an existing roof, comprising an original structural beam (2), characterized in that: A newly added under-slab beam (1) is provided on the original structural beam (2), a column pier (3) is installed on the newly added under-slab beam (1), and the column pier (3) is detachably connected with a connecting plate (10).

2. According to claim 1, a minimally damaged new equipment foundation structure for an existing roof, characterized in that: The connecting plate (10) is threadedly connected with a connecting bolt (9), and the connecting bolt (9) comprises an anchor plate (901).

3. The minimally damaged new equipment foundation structure for an existing roof according to claim 1, characterized in that: Newly added equipment (4) and equipment foundation beam (5) are installed on the newly added lower plate beam (1).

4. The minimally damaged new equipment foundation structure for an existing roof according to claim 1, characterized in that: An original concrete transverse plate (6) is provided below the column pier (3), and a chemical anchor bolt (8) is provided below the original concrete transverse plate (6).

5. The minimally damaged new equipment foundation structure for an existing roof according to claim 4 is characterized by: A steel beam (11) is installed below the original concrete transverse plate (6), and a transverse stiffening rib (12) is provided on the steel beam (11).

6. The minimally damaged new equipment foundation structure for an existing roof according to claim 5, characterized in that: High-strength mortar (13) is filled between the original concrete transverse plate (6) and the steel beam (11).

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