CN107740506B - Large-tonnage HMD damper system and construction method thereof - Google Patents

Abstract

The large-tonnage HMD damper system is arranged in a concrete frame right below a concrete beam, the concrete beam is erected on the concrete frame and comprises a counterweight body and a support frame which are sequentially arranged from inside to outside, the support frame comprises an inner layer frame, a middle layer frame and an outer layer frame which are sequentially arranged from inside to outside, the bottom of the outer layer frame is connected with a driving device, and the driving device is arranged right below the inner layer frame, the middle layer frame and the counterweight body. The application has the characteristics of safety, applicability and the like, has good popularization and practical value, and can generate good economic benefit after wide popularization and application.

Description

Large tonnage HMD damper system and its construction method

technical field

The invention relates to the field of building construction, in particular to a large-tonnage HMD damper system and a construction method thereof.

Background technique

In order to offset the vibration of the top of the building under the action of wind load and earthquake load, super high-rise buildings generally install dampers on the top of the building. The large-tonnage HMD damper is designed according to the engineering conditions. It has a significant wind resistance effect. The shock absorption effect under the action of strong winds in one year can reach 45%, and the shock absorption effect can reach 30% under the action of strong winds in 10 years. Using 1% damping can Stabilizes buildings.

Contents of the invention

The purpose of the present invention is to provide a large-tonnage HMD damper system and its construction method, to solve the technical problems of complex hoisting methods and long construction time in the prior art; and to solve the problem of unstable support frame after construction in the prior art.

To achieve the above object, the present invention adopts the following technical solutions:

The large-tonnage HMD damper system is set inside the concrete frame directly below the concrete beam. The concrete beam is erected on the concrete frame. It includes an inner frame, a middle frame and an outer frame arranged sequentially from the inside to the outside, the bottom of the outer frame is connected with a driving device, and the driving device is arranged directly under the inner frame, the middle frame and the counterweight body.

Further preferably, the transverse sections of the middle frame and the outer frame are regular octagons, and the transverse sections of the inner frame are square.

Further, the inner side of the inner frame and the weight body are fitted together.

Further, the inner frame, the middle frame and the outer frame are assembled from prefabricated components.

More preferably, the middle frame and the inner frame support each other.

The construction method of the large-tonnage HMD damper system is characterized in that it includes the following steps:

Step 1, pre-construction preparation: assemble the supporting frame prefabricated parts in the factory, and install the embedded parts on the concrete frame;

Step 2, installation of the driving device: hoist the driving device to the predetermined position through the hoisting device;

Step 3, install the support frame: After the assembled prefabricated components of the inner frame, middle frame and outer frame are hoisted to predetermined positions by the hoisting device in sequence, they are assembled to form a support frame;

Step 4, quality inspection: Carry out quality inspection on the installation elevation and positioning dimensions of the supporting frame, continue to rectify if it is unqualified, tighten the bolts of each part after passing the pass, and remove the auxiliary structure. At this point, the construction of the large-tonnage HMD damper system is completed.

Further preferably, the hoisting device in the step 2 and step 3 includes a hook, two short steel cables, a balance shoulder pole, a replacement steel cable and a chain pulley arranged sequentially from top to bottom, and the hook is also hung with a Long steel cable, the bottom of the long steel cable is provided with two connecting steel cables through the hanging ring, and the bottom of the chain pulley and the connecting steel cable are all connected to the assembled prefabricated components of the inner frame, the middle frame and the outer frame .

Further, the installation of the support frame in step three specifically includes the following steps: when installing the support frame at the concrete beam, first hoist the prefabricated component to the lower part of the concrete beam through the cooperation of the long steel cable and the connecting steel cable, and then use the The combination of balancing poles, replacement cables and chain blocks hoisted the prefabricated elements directly below the concrete beams, after which the long cables and connecting cables were removed.

More preferably, in step 3, three groups of construction personnel cooperate when installing the support frame at the concrete beam position, the first group of construction personnel is located on the concrete beam, the second group of construction personnel is located on the support frame, and the third group of construction personnel is located on the supporting frame. Heavy bottom.

Compared with the prior art, the present invention has the following characteristics and beneficial effects:

Adopting the hoisting method of the present invention can save hoisting times, save the use time of the tower crane, reduce the construction cost, improve the construction progress, reduce the difficulty of installation while ensuring the stability of the frame hoisting, and create construction conditions for follow-up work and other specialties. The supporting frame after construction by this method is more stable and fast, and the staff can be effectively prevented from being injured.

The invention has the characteristics of safety and applicability, has good popularization and practical value, and can produce good economic benefits after being widely popularized and applied.

Description of drawings

Fig. 1 is a structural schematic diagram of the positional relationship between the large-tonnage HMD damper system and the concrete beam involved in the present invention;

Fig. 2 is a schematic structural view of the large-tonnage HMD damper system involved in the present invention;

3 is a schematic diagram of the overall structure of the hoisting device involved in the present invention when hoisting;

Fig. 4 is a schematic diagram of the connection structure of the long steel cable and the connecting cable and the prefabricated component involved in the present invention;

Fig. 5 is a schematic diagram of the connection structure between the balance shoulder pole, the replacement steel cable and the chain pulley and the prefabricated component involved in the present invention.

Description of drawings: 1-counterweight; 2-inner frame; 3-middle frame; 4-outer frame; 5-concrete frame; 6-concrete beam; 7-driving device; 8-hook; 9-short steel cable; 10-long steel cable; 11-replacement steel cable; 12-chain pulley; 13-connecting steel cable; 14-prefabricated component; 15-first group of construction workers; 16-second group of construction workers; A group of construction workers; 18-balance pole.

Detailed ways

In order to make the technical means, innovative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below.

The examples described here are specific specific implementations of the present invention, and are used to illustrate the concept of the present invention. They are all explanatory and exemplary, and should not be construed as limiting the implementation of the present invention and the scope of the present invention. In addition to the embodiments described here, those skilled in the art can also adopt other obvious technical solutions based on the claims of the application and the contents disclosed in the description, and these technical solutions include adopting any obvious changes made to the embodiments described here. Replacement and modified technical solutions.

The HMD damper adopts a multi-stage pendulum-type tuned mass damper and a control drive device. It is mainly composed of a lower drive device, an upper frame and a counterweight. The counterweight and the frame are related to the hanging relationship. The heavy body, the inner frame, the middle frame and the outer frame are "nested" with each other. The principle of the HMD damper is based on the detection of the wind force at the height of the building and the detection of the vibration state of the building itself. Through the judgment of the computer program, the working mode and operation mode can be independently selected, and the output voltage and polarity of the variable frequency motor can be adjusted to change the damper. The swinging amplitude and swinging period of the counterweight have a damping effect on the vibration of the building, achieving the effect of reducing the vibration of the building itself and the wind vibration.

The large-tonnage HMD damper system, as shown in Figures 1 and 2, is installed inside the concrete frame 5 directly below the concrete beam 6, and the concrete beam 6 is erected on the concrete frame 5, including the counterweight 1 and The support frame, the support frame includes an inner frame 2, a middle frame 3 and an outer frame 4 arranged sequentially from inside to outside, the bottom of the outer frame 4 is connected with the driving device 7, and the driving device 7 is arranged on the inner frame 2, the middle frame 3 and counterweight 1, the transverse sections of the middle frame 3 and the outer frame 4 are regular octagons, the transverse section of the inner frame 2 is square, and the inner side of the inner frame 2 is fitted with the counterweight 1. The inner frame 2, the middle frame 3 and the outer frame 4 are assembled from prefabricated components 14, and the middle frame 3 and the inner frame 2 support each other.

The construction method of the large-tonnage HMD damper system is characterized in that it includes the following steps:

Step 1, preparation before construction: assembling the supporting frame prefabricated parts in the factory, and installing the embedded parts on the concrete frame 5;

Step 2, installation of the driving device 7: hoisting the driving device 7 to a predetermined position through a hoisting device;

Step 3, install the support frame: After the assembled prefabricated components 14 of the inner layer frame 2, middle layer frame 3 and outer layer frame 4 are hoisted to predetermined positions in sequence by the hoisting device, they are assembled to form a support frame; Step 2 And the hoisting device of step 3 comprises suspension hook 8, two short steel cables 9, balance pole 18, replacement steel cable 11 and chain pulley 12 that are arranged successively from top to bottom, and long steel cable 10 is also hung on the suspension hook 8. , the bottom of the long steel cable 10 is provided with two connecting steel cables 13 chain pulleys 12 and the bottom of the connecting steel cable 13 through the hanging ring and is connected with each assembled prefabricated component 14 of the inner layer frame 2, the middle layer frame 3 and the outer layer frame 4 . The installation of the support frame in Step 3 specifically includes the following steps: As shown in Figure 4, when the support frame is installed at the concrete beam 6, firstly, the prefabricated component 14 is hoisted to the concrete through the cooperation of the long steel cable 10 and the connecting steel cable 13. For the lower part of the beam 6, as shown in Figure 5, the prefabricated component 14 is hoisted directly below the concrete beam 6 through the cooperation of the balance shoulder pole 18, the replacement steel cable 11 and the chain pulley 12, and then the long steel cable 10 and the connecting steel cable 13 are removed , as shown in Figure 3, step 3 has three groups of construction personnel to cooperate when installing the support frame at the concrete beam 6, the first group of construction personnel 15 is located on the concrete beam 6, the second group of construction personnel 16 is located on the support frame, and the third group of construction personnel is located on the support frame. A group of construction personnel 17 is located at the bottom of the counterweight body 1 .

Step 4, quality inspection: Carry out quality inspection on the installation elevation and positioning dimensions of the supporting frame, continue to rectify if it is unqualified, tighten the bolts of each part after passing the pass, and remove the auxiliary structure. At this point, the construction of the large-tonnage HMD damper system is completed.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (1)

1. A construction method for a large-tonnage HMD damper system, characterized in that the large-tonnage HMD damper system is installed inside the concrete frame (5) directly below the concrete beam (6), and the concrete beam (6) is erected On the concrete frame (5), it is characterized in that it includes a counterweight (1) and a supporting frame arranged sequentially from inside to outside, and the supporting frame includes an inner layer frame (2) and a middle layer frame arranged sequentially from inside to outside (3) and the outer frame (4), the bottom of the outer frame (4) is connected to the driving device (7), and the driving device (7) is arranged on the inner frame (2), the middle frame (3) and directly below the counterweight body (1); the transverse sections of the middle frame (3) and the outer frame (4) are regular octagons, and the transverse section of the inner frame (2) is square; the inner frame (2) ) and the counterweight body (1) are fitted together; the inner frame (2), the middle frame (3) and the outer frame (4) are assembled from prefabricated components (14); the middle frame (3 ) and the inner frame (2) support each other; The construction of the large-tonnage HMD damper system includes the following steps: Step 1, pre-construction preparation: assemble the supporting frame prefabricated parts in the factory, and install the embedded parts on the concrete frame (5); Step 2, installation of the driving device (7): hoist the driving device (7) to a predetermined position through the hoisting device; Step 3, install the supporting frame: hoist the assembled prefabricated components (14) of the inner frame (2), middle frame (3) and outer frame (4) to the predetermined positions in sequence through the hoisting device , assembled to form a support frame; Step 4, quality inspection: Carry out quality inspection on the installation elevation and positioning dimensions of the support frame, continue to rectify if unqualified, tighten the bolts of each part after passing the pass, and remove the auxiliary structure, so far, the construction of the large-tonnage HMD damper system is completed; The hoisting device in the step 2 and step 3 includes a hook (8), two short steel cables (9), a balance pole (18), a replacement steel cable (11) and a chain pulley (12) arranged in sequence from top to bottom ), the hook (8) is also hung with a long steel cable (10), the bottom of the long steel cable (10) is provided with two connecting steel cables (13) through the hanging ring, and the chain pulley (12 ) and the bottom of the connecting cable (13) are connected with each assembled prefabricated component (14) of the inner frame (2), the middle frame (3) and the outer frame (4); The installation of the support frame in the third step specifically includes the following steps: when the support frame is installed at the concrete beam (6), firstly, the prefabricated components (14 ) to the lower part of the concrete beam (6), and then the prefabricated component (14) is hoisted directly below the concrete beam (6) through the cooperation of the balance shoulder pole (18), the replacement steel cable (11) and the chain pulley (12), and then Remove the long steel cable (10) and the connecting steel cable (13); in the third step, when installing the support frame at the concrete beam (6), there are three groups of construction personnel to cooperate, and the first group of construction personnel (15) is located on the concrete beam (6) ), the second group of construction personnel (16) is located on the supporting frame, and the third group of construction personnel (17) is located at the bottom of the counterweight body (1).