Assembly type frame structure external hanging ALC batten connecting device and construction method

Abstract

The invention provides an assembly type frame structure external hanging ALC batten connecting device and a construction method, and belongs to the technical field of ALC batten installment, the assembly type frame structure external hanging ALC batten connecting device comprises a steel frame, an ALC batten and a fixing mechanism, a damping buffer mechanism is arranged between the ALC batten and the fixing mechanism, the ALC batten is connected with the steel frame through the fixing mechanism, one end of the fixing mechanism is connected to the steel frame, and the other end of the fixing mechanism is connected to the ALC batten. The other end of the fixing mechanism is fixedly connected with the ALC batten through the damping and buffering mechanism, a friction plate is arranged between the fixing mechanism and the damping and buffering mechanism, and one end of the damping and buffering mechanism is fixedly connected to the steel frame. According to the fabricated frame structure external hanging ALC batten connecting device and the construction method, the defects of a traditional connecting mode in the aspects of damping performance and construction efficiency are overcome, and powerful support is provided for improving the anti-seismic performance of a fabricated building structure.

Description

Technical Field

[0001] This invention relates to the field of ALC panel installation technology, and in particular to a connection device and construction method for external ALC panels on a prefabricated frame structure. Background Technology

[0002] In the construction industry, ALC precast panels are widely used in prefabricated building structures, especially as exterior wall panels, due to their lightweight, high strength, and excellent thermal insulation properties. However, the effective connection between ALC precast panels and steel frames, as well as their vibration damping performance, have become key factors affecting the overall structural safety and durability.

[0003] Traditionally, ALC precast slabs are often rigidly connected to steel frames. While this method is simple to construct, under dynamic loads such as earthquakes, sudden changes in stiffness can easily lead to stress concentration at the connection points, causing connection failure or even overall structural instability. Especially in high-intensity earthquake zones, effectively absorbing and dissipating seismic energy and reducing structural dynamic response has become a crucial issue in improving the seismic performance of building structures. Existing damping measures, such as simply installing rubber pads, can provide a certain degree of damping, but under complex and variable seismic motion, their energy dissipation capacity and durability often fall short of expectations, failing to effectively absorb and dissipate seismic energy and reduce structural dynamic response. Furthermore, some damping connection devices have complex structural designs, leading to cumbersome installation processes and further impacting overall construction efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a connection device and construction method for external ALC strips of prefabricated frame structures, which solves the shortcomings of traditional connection methods in terms of shock absorption performance and construction efficiency, and provides strong support for improving the seismic performance of prefabricated building structures.

[0005] To achieve the above objectives, the present invention provides an external ALC strip connection device for a prefabricated frame structure, comprising a steel frame, an ALC strip, and a fixing mechanism. A shock-absorbing and buffering mechanism is provided between the ALC strip and the fixing mechanism. The ALC strip is connected to the steel frame through the fixing mechanism. One end of the fixing mechanism is connected to the steel frame, and the other end of the fixing mechanism is fixedly connected to the ALC strip through the shock-absorbing and buffering mechanism. A friction plate is provided between the fixing mechanism and the shock-absorbing and buffering mechanism, and one end of the shock-absorbing and buffering mechanism is fixedly connected to the steel frame.

[0006] Preferably, the ALC strip has bolt holes, and the ALC strip, the fixing mechanism, and the shock absorption mechanism are fixedly connected by double-ended bolts. The fixing mechanism includes clamping angle steel, and a disc spring is provided between the double-ended bolts and the clamping angle steel.

[0007] Preferably, the shock absorption and buffer mechanism includes a metal square tube and a square tube sleeve. The square tube sleeve is fitted inside the metal square tube. A vibration isolation pad and a buffer air rod are provided outside the square tube sleeve. The two ends of the vibration isolation pad are respectively connected to the inner wall of the metal square tube and the outer wall of the square tube sleeve. One end of the buffer air rod is fixedly connected to the outer wall of the square tube sleeve.

[0008] Preferably, the buffer air rod includes a movable rod and a rubber pad at the end of the movable rod. Both ends of the metal square tube are provided with inflatable sleeves, and the end of the inflatable sleeve is provided with a vent hole. The other end of the inflatable sleeve is sleeved and connected to the movable rod.

[0009] Preferably, the square tube sleeve has a bolt hole in its center, and a double-ended bolt passes through the square tube sleeve, so that the metal square tube and the steel frame are fixedly connected by bolts.

[0010] Preferably, the vibration isolation pad is composed of a rubber and carbon steel composite, and both ends of the vibration isolation pad are welded to a metal square tube and a square tube sleeve, respectively.

[0011] Preferably, the friction plate is composed of a high-strength steel and aluminum alloy laminate, and hard particles of silicon carbide or aluminum oxide are embedded in the friction plate.

[0012] A construction method for connecting external ALC strips in a prefabricated frame structure includes the following steps: S1. The laser positioning instrument determines the installation position of the steel frame, and it is temporarily fixed with high-strength bolts to ensure that the verticality and horizontality of the steel frame meet the requirements. S2. Fix the metal square tube fitted into the square tube sleeve and the clamping angle steel bolts to the steel frame. Hoist the ALC strip to the installation position and adjust it precisely using the guide device to align the bolt holes. S3. Insert the double-headed bolt through the ALC strip, square tube sleeve and clamping angle steel, embed it into the friction plate and adjust its position to ensure a tight fit; S4. Verify the tightening torque of the double-headed bolts, the embedding depth of the friction plate, and the condition of the vibration isolation pads. Conduct a dynamic response test to verify the vibration reduction effect.

[0013] Therefore, the present invention employs the above-mentioned prefabricated frame structure external ALC strip connection device and construction method, and the technical effects are as follows: 1. Excellent vibration damping performance: By designing a vibration damping and buffering mechanism that includes vibration isolation pads and buffer air bars, longitudinal vibration energy is effectively absorbed and dispersed; by using a friction plate made of high-strength steel and aluminum alloy laminated with embedded hard particles, the friction coefficient between the fixed mechanism and the vibration damping and buffering mechanism is increased, lateral vibration energy is absorbed, thereby significantly improving the overall seismic performance of the structure.

[0014] 2. High construction efficiency: The modular design concept allows for the prefabrication of components such as the steel frame, ALC panels, fixing mechanisms, and shock-absorbing buffer mechanisms, enabling simple and quick on-site assembly. Combined with the use of laser positioning instruments and guiding devices, precise and rapid positioning and adjustment are achieved, significantly reducing construction adjustment time and labor intensity, thus improving overall construction efficiency.

[0015] 3. Simple and reliable structure: The connection device has a simple and clear structural design, with each component having a clearly defined function. It is easy to manufacture and install. Through strict construction steps and verification testing processes, the connection quality is ensured to meet the design requirements, providing a stable and reliable connection solution for prefabricated building structures. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the prefabricated frame structure external ALC strip connection device according to the present invention; Figure 2 This is a top view of the overall structure of the prefabricated frame structure external ALC strip connection device of the present invention; Figure 3 This is a schematic diagram of the shock absorption and buffer mechanism of the external ALC strip connection device for a prefabricated frame structure according to the present invention.

[0017] Figure Labels 1. Steel frame; 2. ALC strip; 3. Double-ended bolt; 4. Shock absorption and buffer mechanism; 5. Fixing mechanism; 6. Clamping angle steel; 7. Metal square tube; 8. Disc spring; 9. Friction plate; 10. Square tube sleeve; 11. Vibration isolation pad; 12. Moving rod; 13. Rubber pad; 14. Inflatable sleeve; 15. Vent hole. Detailed Implementation

[0018] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0020] Example 1 like Figures 1-2As shown, the present invention provides an external ALC strip connection device for prefabricated frame structures, including a steel frame 1, an ALC strip 2, and a fixing mechanism 5. The steel frame 1 includes a frame beam arranged along the entire length. The two ends of the frame beam are rigidly connected to the frame columns by high-strength bolts. In some scenarios, welding reinforcement can be used to ensure that the beam and the main structure form an integral load-bearing system. After the beam is installed, the verticality and horizontality deviations meet the requirements of the "Technical Standard for Prefabricated Steel Structure Buildings" GB / T51232, providing a stable foundation for the installation of the ALC strip 2. The upper and lower ends of the ALC strip 2 are connected to the continuous frame beam through the fixing mechanism 5. A shock-absorbing buffer mechanism 4 is provided between the ALC strip 2 and the fixing mechanism 5. One end of the fixing mechanism 5 is connected to the continuous frame beam of the steel frame 1, and the other end of the fixing mechanism 5 is fixedly connected to the ALC strip 2 through the shock-absorbing buffer mechanism 4. A friction plate 9 is provided between the fixing mechanism 5 and the shock-absorbing buffer mechanism 4. One end of the shock-absorbing buffer mechanism 4 is fixedly connected to the continuous frame beam of the steel frame 1. This design aims to solve the shortcomings of traditional connection methods in terms of shock absorption performance and construction efficiency, and improve the overall seismic performance of prefabricated building structures.

[0021] The steel frame 1, serving as the robust support of the entire structure, is precisely and temporarily fixed in its predetermined position using high-strength bolts, ensuring that its verticality and horizontality meet design requirements and providing a stable supporting foundation for the entire structure. The ALC panel 2, a key component of the external wall panel, has pre-drilled bolt holes for seamless connection with the subsequent fixing mechanism 5 and shock-absorbing buffer mechanism 4. Adjacent ALC panels 2 are joined using a tongue-and-groove joint with a flexible sealing design at the joint, ensuring the connection's sealing, shock absorption, and overall integrity. The fixing mechanism 5 mainly consists of clamping angle steel 6, one end of which is tightly connected to the continuous frame beam of the steel frame 1 via bolts, while the other end is firmly fixed to the ALC panel 2 via the shock-absorbing buffer mechanism 4. A disc spring 8 is also installed between the double-ended bolt 3 and the clamping angle steel 6, providing not only the necessary preload but also effectively absorbing some vibration energy and enhancing the stability of the connection.

[0022] like Figure 3 As shown, the vibration damping mechanism 4 includes a metal square tube 7 and a square tube sleeve 10 fitted inside it. A vibration isolation pad 11 and a buffer air rod are installed on the outside of the square tube sleeve 10. The vibration isolation pad 11 is composed of a rubber and carbon steel composite, with its two ends welded to the inner wall of the metal square tube 7 and the outer wall of the square tube sleeve 10, respectively. It can effectively absorb and disperse longitudinal vibration energy, reducing the impact on the overall structure. The buffer air rod includes a movable rod 12 and a rubber pad 13 at its end. Inflatable sleeves 14 are provided at both ends of the metal square tube 7, and the internal air pressure is adjusted through vent holes 15. Under vibration, the buffer air rod further buffers longitudinal vibration through expansion and contraction, and the deformation of the rubber pad 13, ensuring the stability of the structure.

[0023] A friction plate 9 is provided between the fixed mechanism 5 and the shock absorption and buffer mechanism 4. It is composed of high-strength steel and aluminum alloy laminate and embedded with silicon carbide or alumina hard particles, which significantly increases the friction coefficient. This allows the energy to be effectively absorbed through friction when lateral vibration occurs, preventing excessive displacement of the structure.

[0024] The ALC strip 2 is connected in a horizontal manner. The horizontal connection (adjacent strips on the same layer) adopts a tongue and groove splicing process. A rubber damping strip of the same material as the vibration isolation pad 11 is embedded in the tongue and groove seam, and the outer side is sealed with sealant. While achieving the function of sealing and waterproofing, the rubber damping strip absorbs the horizontal vibration, forming a synergistic effect with the horizontal vibration damping design of the friction plate 9 and the shock absorption buffer mechanism 4.

[0025] A construction method for connecting external ALC strips in a prefabricated frame structure includes the following steps: S1. Steel Frame 1 Installation: A high-precision laser positioning instrument is used to determine the precise installation position of steel frame 1 in the building structure, ensuring that steel frame 1 can be placed accurately according to the design blueprint; high-strength bolts are used to fix steel frame 1, focusing on ensuring the firmness of the connection between the continuous frame beam and the frame column. During this process, special attention must be paid to the tightening force of the bolts to ensure the stability of steel frame 1; after fixing, the verticality and horizontality of steel frame 1 are fully checked to ensure that it fully meets the design requirements, providing a solid foundation for subsequent steps.

[0026] S2. Component Assembly: The metal square tube 7, which is pre-fitted into the square tube sleeve 10, and the clamping angle steel 6 are firmly fixed to the continuous frame beam of the steel frame 1 with bolts. This process requires precise control of the tightening degree of the bolts and the relative position between the components to ensure the firmness and accuracy of the connection. At the same time, the ALC strip 2 is slowly lifted to the top of the installation position using hoisting equipment. The position of the ALC strip 2 is precisely adjusted by the guide device until the bolt holes on it are aligned with the bolt holes of the components below, in preparation for the subsequent bolt connection.

[0027] S3. Bolt Connection and Adjustment: After aligning the bolt holes, insert the double-ended bolt 3, ensuring it can smoothly pass through the ALC strip 2, square tube sleeve 10, and clamping angle steel 6; then, embed the friction plate 9 in the appropriate position, and adjust the position of the friction plate 9 to ensure it fits tightly with the surrounding components; simultaneously complete the splicing of adjacent ALC strips 2, with the longitudinal strips connected by groove-bore joints and locating pins inserted, and the transverse strips completed by tongue and groove splicing and embedding rubber damping strips. This step not only requires precise operation but also a deep understanding of the interaction between components to ensure the quality and stability of the connection.

[0028] S4. Verification and Testing: Verify the tightening torque of the double-ended bolt 3 to ensure that it meets the tightening requirements of the design; at the same time, check whether the embedding depth of the friction plate 9 is appropriate and whether the condition of the vibration isolation pad 11 is good; verify the tongue and groove fit of adjacent strips, the fullness of the sealant filling and the firmness of the positioning pin installation to ensure that the splice joint is not loose and has no leakage.

[0029] The aforementioned connection device, through the synergistic effect of its carefully designed mechanisms, achieves stable connection and efficient vibration damping of the external ALC panel 2 under vibration conditions. When vibration occurs, the continuous frame beam of the steel frame 1 serves as the foundation support, maintaining the overall structural stability. The ALC panel 2, as the external wall panel, is connected to the continuous frame beam via the fixing mechanism 5. The vibration damping and buffering mechanism 4, located between the fixing mechanism 5 and the ALC panel 2, becomes crucial for absorbing vibration. The vibration isolation pad 11 in the vibration damping and buffering mechanism 4 is made of a composite of rubber and carbon steel, effectively absorbing and dispersing longitudinal vibration energy, reducing the direct impact of vibration on the structure. Simultaneously, the buffer air rod, through its internal inflatable sleeve 14 and moving rod 12 design, undergoes expansion and contraction deformation under vibration, further buffering longitudinal vibration. Furthermore, the friction plate 9 installed between the fixing mechanism 5 and the shock-absorbing mechanism 4 is made of high-strength steel and aluminum alloy laminated with embedded hard particles, which increases the coefficient of friction. During lateral vibration, it effectively absorbs energy through friction, preventing excessive structural displacement. The rubber damping strips and sealing structure between adjacent plates further enhance lateral damping performance and overall sealing. All mechanisms are tightly connected by bolts and other fasteners, ensuring they work collaboratively in a vibration environment to jointly resist vibration damage to the structure, thereby significantly improving the overall seismic performance of the prefabricated building structure.

[0030] Therefore, the present invention adopts the above-mentioned prefabricated frame structure external ALC strip connection device and construction method. Through the coordinated design of steel frame, fixing mechanism, shock absorption and buffer mechanism and friction plate, a high-efficiency shock absorption connection between ALC strip and steel frame is achieved. Among them, the vibration isolation pad and buffer air rod effectively absorb longitudinal vibration, while the friction plate absorbs lateral vibration. The close cooperation of each mechanism significantly improves the overall seismic performance of the structure. At the same time, the modular design and precise construction method greatly improve the construction efficiency and ensure the stable and reliable connection quality.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A prefabricated frame structure external ALC strip connection device, characterized in that, It includes a steel frame, ALC panels and a fixing mechanism. A shock-absorbing and buffering mechanism is set between the ALC panels and the fixing mechanism. The ALC panels are connected to the steel frame through the fixing mechanism. One end of the fixing mechanism is connected to the steel frame, and the other end of the fixing mechanism is fixedly connected to the ALC panels through the shock-absorbing and buffering mechanism. A friction plate is set between the fixing mechanism and the shock-absorbing and buffering mechanism. One end of the shock-absorbing and buffering mechanism is fixedly connected to the steel frame.

2. The prefabricated frame structure external ALC strip connection device according to claim 1, characterized in that, The ALC strip has bolt holes. The ALC strip, the fixing mechanism, and the shock absorption mechanism are fixedly connected by double-ended bolts. The fixing mechanism includes clamping angle steel, and a disc spring is installed between the double-ended bolts and the clamping angle steel.

3. The prefabricated frame structure external ALC strip connection device according to claim 1, characterized in that, The shock absorption and buffer mechanism includes a metal square tube and a square tube sleeve. The square tube sleeve is fitted inside the metal square tube. A vibration isolation pad and a buffer air rod are installed outside the square tube sleeve. The two ends of the vibration isolation pad are connected to the inner wall of the metal square tube and the outer wall of the square tube sleeve, respectively. One end of the buffer air rod is fixedly connected to the outer wall of the square tube sleeve.

4. The prefabricated frame structure external ALC strip connection device according to claim 3, characterized in that, The buffer air rod includes a movable rod and a rubber pad at the end of the movable rod. Both ends of the metal square tube are provided with inflatable sleeves, and the end of the inflatable sleeve is provided with a vent hole. The other end of the inflatable sleeve is connected to the movable rod.

5. The prefabricated frame structure external ALC strip connection device according to claim 3, characterized in that, The square tube sleeve has bolt holes on its axis, and double-ended bolts pass through the square tube sleeve. The metal square tube is fixedly connected to the steel frame by bolts.

6. The prefabricated frame structure external ALC strip connection device according to claim 3, characterized in that, The vibration isolation pad is composed of rubber and carbon steel composite, and its two ends are welded to metal square tubes and square tube sleeves, respectively.

7. The prefabricated frame structure external ALC strip connection device according to claim 3, characterized in that, The friction plate is composed of high-strength steel and aluminum alloy laminate, with hard particles of silicon carbide or aluminum oxide embedded in the friction plate.

8. A construction method for connecting external ALC strips in a prefabricated frame structure, comprising applying the prefabricated frame structure external ALC strip connection device according to any one of claims 1-7 to the connection between external ALC strips and steel frames, characterized in that, Includes the following steps: S1. The laser positioning instrument determines the installation position of the steel frame, and it is temporarily fixed with high-strength bolts to ensure that the verticality and horizontality of the steel frame meet the requirements. S2. Fix the metal square tube fitted into the square tube sleeve and the clamping angle steel bolts to the steel frame. Hoist the ALC strip to the installation position and adjust it precisely using the guide device to align the bolt holes. S3. Insert the double-headed bolt through the ALC strip, square tube sleeve and clamping angle steel, embed it into the friction plate and adjust its position to ensure a tight fit; S4. Verify the tightening torque of the double-headed bolts, the embedding depth of the friction plate, and the condition of the vibration isolation pads. Conduct a dynamic response test to verify the vibration reduction effect.

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