A frame foundation structure for a roof cooling tower vibration reduction support

Abstract

The utility model discloses a roof cooling tower damping support's frame foundation structure, the frame foundation structure includes a plurality of concrete support column, steel frame platform, a plurality of elastic damper, and the top of each concrete support column is embedded with pre -buried steel sheet, and the lower extreme of each elastic damper is fixed with the pre -buried steel sheet of concrete support column top end, and the steel frame platform is located the top of a plurality of elastic dampers and is fixed with the upper end of a plurality of elastic dampers, and the concrete support column sets up as the variable cross -section column structure, and the concrete support column includes base pedestal and pier column, and the pier column is located the top of base pedestal and is fixed with it. The utility model adopts and disperses the amplitude effect to a plurality of elastic dampers through steel frame platform, effectively reduces the vibration produced when cooling tower equipment operates, and the damping effect is good, effectively avoids the damage of vertical load to roof floor slab.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower equipment installation technology, specifically a frame foundation structure for vibration damping support of roof cooling towers. Background Technology

[0002] In high-rise buildings, building equipment such as air conditioning heat sources, fans, cooling towers, and water pumps are often placed on the podium or roof. The high-speed operation of these devices generates vibrations, causing noticeable vibrations and noise in adjacent rooms, severely impacting users. Furthermore, these devices are typically large, especially cooling towers installed on the podium or roof. The weight of the cooling tower itself, plus the weight when fully filled with water (especially open-type cooling towers), is considerable; large cooling towers can weigh tens or even hundreds of tons. Therefore, to avoid the large cooling tower evenly distributing the load across a larger floor area or directly transferring it to load-bearing walls / columns, which could lead to localized floor cracking, deformation, or even damage due to the massive concentrated load, cooling towers are usually installed on the podium or roof of high-rise buildings. Before installation, the foundation structure of the equipment must be constructed first.

[0003] Existing cooling tower foundation structures are mainly constructed using reinforced concrete. These foundations effectively transfer the static load (self-weight) and dynamic load (operational vibration) of the cooling tower to the main load-bearing structure of the building (beams, columns, shear walls). However, existing cooling tower foundation structures have the following shortcomings:

[0004] 1) The existing basic structure lacks vibration isolation or effective vibration reduction design. The fans and motors of the cooling tower will generate significant vibrations during operation. These vibrations will be transmitted to the entire building through the building structure, causing structural noise and affecting the comfort of people in the building (especially in the offices, hotel rooms, residences, etc. below). Long-term vibration transmission may cause damage or loosening at the building structure connection or non-structural components (such as ceilings and partitions), which poses certain potential hazards to the building structure.

[0005] 2) The existing foundation structure has insufficient contact area with the roof, and the concentrated load is prone to causing roof cracks. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model solves the technical problem of providing a frame foundation structure that combines "several concrete support columns, several elastic vibration dampers, and a steel frame platform." The steel frame platform disperses the amplitude of vibration onto the elastic vibration dampers, effectively reducing the vibration generated during the operation of the cooling tower equipment. This results in excellent vibration reduction and effectively prevents vertical loads from damaging the roof floor slabs.

[0007] To address the aforementioned technical problems, this utility model provides a frame foundation structure for vibration damping support of roof cooling towers. The frame foundation structure includes several concrete support columns, a steel frame platform, and several elastic vibration dampers. The concrete support columns are spaced apart from each other, with a pre-embedded steel plate embedded in the top of each concrete support column. Each elastic vibration damper is located above each concrete support column, and the lower end of each elastic vibration damper is fixed to the pre-embedded steel plate at the top of the concrete support column. The steel frame platform is located above the elastic vibration dampers and is fixed to the upper ends of the elastic vibration dampers. The concrete support columns are configured as variable cross-section column structures, each including a foundation base and a pier. The pier is located above the foundation base and is fixed to it.

[0008] Furthermore, the foundation base of the concrete support column has dimensions of 700×700×100mm, and the pier of the upper part of the concrete support column has dimensions of 400×400×950mm.

[0009] Furthermore, the elastic damper includes an elastic body, an upper connecting seat, and a lower connecting seat. The elastic body is a cylindrical structure. The upper end face of the elastic body is fixedly connected to the upper connecting seat, and the lower end face of the elastic body is fixedly connected to the lower connecting seat. The elastic body is fixed to the steel frame platform through the upper connecting seat, and the elastic body is fixed to the pre-embedded steel plate at the top of the concrete support column through the lower connecting seat.

[0010] Furthermore, the concrete support column is provided with a steel reinforcement cage, which includes corner bars and stirrups. The stirrups are tied to the corner bars at 100mm intervals.

[0011] Furthermore, the dimensions of the embedded steel plate are 240×240×10mm, and the depth to which the embedded steel plate is embedded in the top of the concrete support column is 150mm.

[0012] Furthermore, the corner bars of the steel reinforcement cage are rigidly connected to the embedded steel plate so that the load is transferred to the concrete support column in sequence through the embedded steel plate and the steel reinforcement cage.

[0013] Furthermore, the concrete support column is made of reinforced concrete.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The frame foundation structure of this utility model includes several concrete support columns, a steel frame platform, and several elastic vibration dampers. The concrete support columns are spaced apart, with a pre-embedded steel plate embedded in the top of each column. Each elastic vibration damper is located above each concrete support column, and its lower end is fixed to the pre-embedded steel plate at the top of the concrete support column. The steel frame platform is located above the elastic vibration dampers and is fixed to their upper ends. The concrete support columns are configured as variable cross-section columns, each including a foundation base and a pier. The pier is located above and fixed to the foundation base. This utility model uses a frame foundation structure combining "several concrete support columns, several elastic vibration dampers, and a steel frame platform." The steel frame platform disperses the vibration amplitude onto the elastic vibration dampers, effectively reducing the vibration generated during the operation of the cooling tower equipment. It provides excellent vibration reduction and effectively prevents damage to the roof and floor slabs from vertical loads. Attached Figure Description

[0016] Figure 1 This is a plan view of the basic frame structure of this utility model;

[0017] Figure 2 This utility model Figure 1 Detailed illustration;

[0018] Figure 3 This utility model Figure 1 Sectional view of section 1-1;

[0019] Figure 4 This utility model Figure 3 Detailed illustration;

[0020] Figure 5 This is a plan view of the embedded steel plate and steel frame platform of this utility model;

[0021] Figure 6 This utility model Figure 5 Sectional view of section 2-2;

[0022] Figure 7 This is a schematic diagram of the structure of the elastic vibration damper of this utility model;

[0023] Figure 8 This is a schematic diagram showing the relationship between the concrete foundation pier and the roof floor slab of this utility model.

[0024] In the figure, there are concrete support column 1, foundation base 11, pier column 12, embedded steel plate 13, steel reinforcement cage 14, corner reinforcement 141, stirrup 142, steel frame platform 2, steel frame platform 3, roof floor slab 4, elastic vibration damper 5, elastic body 51, upper connecting seat 52, and lower connecting seat 53. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1-8 As shown, Embodiment 1 of this utility model provides a frame foundation structure for vibration damping support of a roof cooling tower. This frame foundation structure includes several concrete support columns 1, a steel frame platform 232, and several elastic vibration dampers 5. The concrete support columns 1 are spaced apart from each other. A pre-embedded steel plate 13 is embedded in the top of each concrete support column 1. Each elastic vibration damper 5 is located above each concrete support column 1, and the lower end of each elastic vibration damper 5 is fixed to the pre-embedded steel plate 13 at the top of the concrete support column 1. The steel frame platform 232 is located above the elastic vibration dampers 5 and is fixed to the upper ends of the elastic vibration dampers 5. The concrete support columns 1 are configured as variable cross-section columns, each including a foundation base 11 and a pier 12. The pier 12 is located above and fixed to the foundation base 11. The dimensions of the foundation base 11 at the bottom of the concrete support column 1 are 700×700×100mm, and the dimensions of the pier 12 at the top of the concrete support column 1 are 400×400×950mm. In practice, the elastic vibration damper 5 is a 7A4 type damping vibration damper with a rated load of 1000kg. The elastic vibration damper 5 is placed on the pre-embedded steel plate 13 and connected by welding. After the installation of several elastic vibration dampers 5, the steel frame platform 232 is welded on top of several damping vibration dampers so that the steel frame platform 232 is distributed on several elastic vibration dampers 5. In practice, the steel frame platform 232 is erected using 16# I-beams and is fixed to the elastic vibration damper 5 by bolts.

[0027] The frame structure foundation of this utility model sets the concrete support column 1 as a variable cross-section column structure, which increases the bearing area at the bottom of the concrete support column 1, reduces the pressure on the roof floor slab 4, and improves the stress stability of the roof floor slab 4. The vibration load of the cooling tower during operation is dispersed through the steel frame platform 232 and applied to several elastic vibration dampers 5. The vibration transmission generated by the cooling tower during operation can be effectively reduced by several elastic vibration dampers 5. The vibration load generated by the cooling tower during operation is weakened before being transmitted to the roof floor slab 4. This can effectively disperse and reduce the amplitude generated by the cooling tower during operation under different working conditions, with good vibration reduction effect. It effectively avoids the damage of vertical load to the insulation layer, waterproof layer and surface layer on the roof floor slab 4.

[0028] In this embodiment of the utility model, the elastic vibration damper 5 includes an elastic body 51, an upper connecting seat 52, and a lower connecting seat 53. The elastic body 51 has a cylindrical structure. The upper end face of the elastic body 51 is fixedly connected to the upper connecting seat 52, and the lower end face of the elastic body 51 is fixedly connected to the lower connecting seat 53. The elastic body 51 is fixed to the steel frame platform 232 through the upper connecting seat 52, and the elastic body 51 is fixed to the pre-embedded steel plate 13 at the top of the concrete support column 1 through the lower connecting seat 53. Specifically, both the upper connecting seat 52 and the lower connecting seat 53 are made of steel plate with a thickness of 8-12mm. The upper connecting seat 52 is provided with several upper connecting holes, all of which are circular holes, with a quantity of 4 holes in each hole, arranged in a rectangular pattern. The height of the elastic body 51 is 80-120mm, and the diameter is 100-150mm. The elastic vibration damper 5 of this utility model is provided with an upper connecting seat 52 and a lower connecting seat 53, which facilitates the connection between the elastic body 51 and the steel frame platform 232 and the concrete support column 1. The design of the upper connecting hole makes the installation more convenient, and the four rectangular connecting holes can ensure the stability of the connection between the elastic vibration damper 5 and the steel frame platform 232.

[0029] This utility model provides a steel reinforcement cage 14 inside the concrete support column 1. The steel reinforcement cage 14 includes corner bars 141 and stirrups 142. The stirrups 142 are tied and fixed to the corner bars 141 at 100mm intervals. In specific implementation, four corner bars 141 are provided, using the specified specifications. Reinforcing bars, Stirrup 142 is adopted The present invention incorporates a steel reinforcement cage 14 inside the concrete support column 1, which can enhance shear and bending resistance and prevent cracking.

[0030] The embedded steel plate 13 of this invention has dimensions of 240×240×10mm, and the depth of the embedded steel plate 13 embedded in the top of the concrete support column 1 is 150mm. The embedded steel plate 13 has dimensions of 240×240mm, which provides sufficient welding surface, and the 10mm thickness ensures load-bearing strength.

[0031] In this embodiment of the utility model, the corner bars 141 of the reinforcing steel cage 14 are rigidly connected to the embedded steel plate 13 so that the load is transferred to the concrete support column 1 in sequence through the embedded steel plate 13 and the reinforcing steel cage 14. The concrete support column 1 is made of reinforced concrete, and the strength grade of the reinforced concrete is not lower than C30.

[0032] Regarding the installation process of the frame foundation structure of this utility model:

[0033] Step 1) Construct the formwork for the concrete support column 1. Construct the foundation base 11 (700×700×100mm) to serve as the bottom formwork. Construct the pier column 12 (400×400×950mm) to serve as the upper formwork. Fix the upper formwork above the bottom formwork. The reinforcing steel frame 14 uses 4 steel bars. Angle reinforcement 141, paired with Stirrups 142, tied and fixed at 100mm intervals, are placed inside the prepared upper and lower templates;

[0034] Step 2) Installation of embedded steel plate 13: Embed the 240×240×10mm embedded steel plate 13 into the top position of the pier column 12 to a depth of 150mm, and then pour C35 concrete to form concrete support column 1.

[0035] Step 3) Installation of elastic vibration damper 5: Fully weld the bottom of elastic vibration damper 5 to the pre-embedded steel plate 13 to ensure uniform load transfer;

[0036] Step 4) Installation of steel frame platform 232: 16# I-beams are used as steel frame platform 232. The steel frame platform 232 is connected to the upper connecting seat of each elastic damper 5 by bolts, and finally forms a complete frame foundation structure.

[0037] The frame foundation structure of this utility model uses several concrete support columns 1 as core load-bearing components. The foundation base 11 set at the bottom of each concrete support column 1 increases the contact area with the roof floor slab 4 and distributes the load. The pier 12 set on the upper part provides vertical support height to match the installation elevation of the steel frame platform 232. The pre-embedded steel plate 13 serves as a transition connector to ensure the installation accuracy of the elastic vibration damper 5. The elastic vibration damper 5 can reduce the operating noise and resonance of the cooling tower equipment. The cooling tower is directly supported by the steel frame platform 232. The steel frame platform 232 and the elastic vibration damper 5 are connected by bolts to ensure uniform load transfer.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A frame foundation structure for vibration damping support of a roof cooling tower, characterized in that: The frame foundation structure includes several concrete support columns, a steel frame platform, and several elastic vibration dampers. The concrete support columns are spaced apart from each other, and a pre-embedded steel plate is embedded in the top of each concrete support column. Each elastic vibration damper is located above each concrete support column, and the lower end of each elastic vibration damper is fixed to the pre-embedded steel plate at the top of the concrete support column. The steel frame platform is located above the elastic vibration dampers and is fixed to the upper ends of the elastic vibration dampers. The concrete support columns are configured as variable cross-section column structures, and each concrete support column includes a foundation base and a pier. The pier is located above the foundation base and is fixed to it.

2. The frame foundation structure for vibration damping support of roof cooling towers according to claim 1, characterized in that: The foundation base of the concrete support column has dimensions of 700×700×100mm, and the pier of the upper part of the concrete support column has dimensions of 400×400×950mm.

3. The frame foundation structure for vibration damping support of roof cooling towers according to claim 1, characterized in that: The elastic damper includes an elastic body, an upper connecting seat, and a lower connecting seat. The elastic body is a cylindrical structure. The upper end face of the elastic body is fixedly connected to the upper connecting seat, and the lower end face of the elastic body is fixedly connected to the lower connecting seat. The elastic body is fixed to the steel frame platform through the upper connecting seat, and the elastic body is fixed to the pre-embedded steel plate at the top of the concrete support column through the lower connecting seat.

4. The frame foundation structure for vibration damping support of roof cooling towers according to claim 1, characterized in that: The concrete support column is equipped with a steel reinforcement cage, which includes corner bars and stirrups. The stirrups are tied to the corner bars at 100mm intervals.

5. The frame foundation structure for vibration damping support of roof cooling towers according to claim 1, characterized in that: The dimensions of the embedded steel plate are 240×240×10mm, and the depth to which the embedded steel plate is embedded in the top of the concrete support column is 150mm.

6. The frame foundation structure for vibration damping support of roof cooling towers according to claim 4, characterized in that: The corner bars of the steel reinforcement cage are rigidly connected to the embedded steel plate so that the load is transferred to the concrete support column in sequence through the embedded steel plate and the steel reinforcement cage.

7. The frame foundation structure for vibration damping support of roof cooling towers according to claim 1, characterized in that: The concrete support column is made of reinforced concrete.

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