Shock insulation air pipe structure with ultra-large displacement and construction method thereof

Abstract

The invention discloses an ultra-large displacement shock insulation air pipe structure and a construction method thereof.The ultra-large displacement shock insulation air pipe structure comprises two air pipe sections, one air pipe section is fixedly arranged in a shock insulation area of a building structure, the other air pipe section is fixedly arranged in a non-shock insulation area of the building structure, and a shock insulation seam is formed between the shock insulation area and the non-shock insulation area; the connecting section is connected between the two air pipe sections and is arranged in the seismic isolation seam in the horizontal direction or the vertical direction, the connecting section comprises a plurality of flexible air pipes and supporting springs which are coaxially arranged, flanges are formed at the two ends of each flexible air pipe, every two adjacent flexible air pipes are connected through the corresponding flanges, and the supporting springs are connected with the flexible air pipes. The multiple supporting springs are connected between the flanges at the two ends of each section of flexible air pipe and arranged in the circumferential direction of the flanges, and the number of the supporting springs arranged on every two adjacent sections of flexible air pipes is different. According to the invention, the problem that there is no specific practice standard and mature case for the shock insulation air duct with the displacement exceeding 800mm and the deformation exceeding 400mm in a shock insulation building is solved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to an ultra-large displacement seismic isolation air duct structure and a construction method thereof. Background Art

[0002] Seismic isolation technology separates the upper and lower structures of buildings, and absorbs earthquake energy by building an isolation layer, reducing damage to the upper structure caused by earthquakes, and achieving the principle of normal use after an earthquake. However, a large amount of experience in earthquake disasters has shown that the isolation layer deforms greatly under the action of an earthquake, and the number and types of pipes inside it are large. Among them, the air ducts passing through the isolation layer will bend or axially deform due to the displacement of the isolation layer. At present, there are no specific standards or mature cases for seismic isolation air ducts with displacement exceeding 800mm and deformation exceeding 400mm in seismic isolation buildings. Summary of the invention

[0003] In order to overcome the defects of the prior art, a super-large displacement seismic isolation air duct structure and a construction method thereof are provided to solve the problem that there are no specific practice standards and mature cases for seismic isolation air ducts with a displacement exceeding 800mm and a deformation exceeding 400mm in seismic isolation buildings.

[0004] In order to achieve the above object, a super-large displacement seismic isolation air duct structure is provided, comprising:

[0005] Two air duct segments, one air duct segment is fixedly arranged in the seismic isolation zone of the building structure, and the other air duct segment is fixedly arranged in the non-seismic isolation zone of the building structure, and a seismic isolation gap is formed between the seismic isolation zone and the non-seismic isolation zone;

[0006] A connecting segment is connected between the two air duct segments and is arranged in the seismic isolation joint along the horizontal direction or the vertical direction. The connecting segment includes multiple coaxially arranged flexible air duct sections and support springs. Flanges are formed at both ends of the flexible air duct. Two adjacent flexible air duct sections are connected by the flanges. Multiple support springs are connected between the flanges at both ends of each flexible air duct section. The multiple support springs are arranged along the circumferential direction of the flange, and the number of support springs arranged on two adjacent flexible air duct sections is different.

[0007] Furthermore, the connecting segments are arranged in the vertical direction, the number of the flexible air ducts is at least three, the number of support springs arranged on the odd-numbered flexible air ducts is the same, the number of support springs arranged on the even-numbered flexible air ducts is the same, and the number of support springs arranged on the odd-numbered flexible air ducts is greater than the number of support springs arranged on the even-numbered flexible air ducts.

[0008] Furthermore, the connecting segment is arranged in a horizontal direction, and the connecting segment also includes a supporting plate arranged below the connecting segment, and the opposite sides of the supporting plate are suspended on the ceiling of the building structure through suspension rods, and multiple sliding trolleys are movably arranged on the supporting plate, and the flanges of two adjacent sections of flexible air ducts are fixed to the sliding trolleys.

[0009] Furthermore, the number of the flexible air ducts is at least five, the number of support springs arranged on the odd-numbered flexible air ducts is the same, the number of support springs arranged on the even-numbered flexible air ducts is the same, and the number of support springs arranged on the odd-numbered flexible air ducts is greater than the number of support springs arranged on the even-numbered flexible air ducts.

[0010] Furthermore, the flexible air duct is in a rectangular shape, and a plurality of the support springs are respectively provided on four side surfaces of the flexible air duct in a circumferential direction.

[0011] Furthermore, a plurality of the support springs are arranged at equal intervals on the side surface of the flexible air duct.

[0012] Furthermore, the sliding trolley is arranged along the width direction of the connecting segment.

[0013] The present invention provides a construction method of a super-large displacement seismic isolation air duct structure, comprising the following steps:

[0014] One air duct segment is fixedly installed in the seismic isolation area of ​​the building structure, and the other air duct segment is fixedly installed in the non-seismic isolation area of ​​the building structure;

[0015] Connect multiple sections of flexible air ducts together through flanges;

[0016] Connecting a plurality of support springs between the flanges at both ends of each section of the flexible air duct to form a connection section, wherein the plurality of support springs are arranged along the circumferential direction of the flanges, so that the plurality of sections of the flexible air duct are coaxially arranged;

[0017] The connecting segment is arranged in a seismic isolation gap formed between the seismic isolation zone and the non-seismic isolation zone, and the connecting segment is connected between the two air duct segments.

[0018] The beneficial effect of the present invention is that the connection segments in the ultra-large displacement seismic isolation air duct structure of the present invention are composed of "multi-section" flexible air ducts, which subverts the traditional "single-section" structure of seismic isolation air ducts. The multi-section structure makes the "folding" part of the seismic isolation air duct more uniform, which not only improves the appearance of the seismic isolation air duct, but also prevents the seismic isolation module from not having the automatic recovery function or failing to recover in place after an earthquake. The displacement of the ultra-large displacement seismic isolation air duct structure of the present invention exceeds 800mm and the deformation exceeds 400mm.

[0019] The flanges on the four sides of each section of the flexible air duct of the ultra-large displacement seismic isolation air duct structure of the present invention are all equipped with support springs, which is essentially different from the spring installation structures of all other seismic isolation air duct inventions. The function of the support springs is to keep each section of the flexible air duct in a normal length state in non-earthquake conditions to ensure a good appearance after the seismic isolation air duct is installed. During an earthquake, it can partially absorb the seismic energy to ensure that the seismic isolation air duct will not shake too violently and that the seismic isolation air duct can exert its displacement capacity under the action of the earthquake, and the air duct will not be damaged. After the earthquake, the seismic isolation air duct can be quickly reset under the action of the springs. On the other hand, by changing the number of support springs set on the flexible air duct, during an earthquake, the connecting segments can be induced to undergo adaptive deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0021] Figure 1 It is a structural schematic diagram of the ultra-large displacement seismic isolation air duct structure of the first embodiment of the present invention.

[0022] Figure 2 It is a front view of the ultra-large displacement seismic isolation air duct structure of the first embodiment of the present invention.

[0023] Figure 3 It is a structural schematic diagram of the ultra-large displacement seismic isolation air duct structure of the second embodiment of the present invention.

[0024] Figure 4 It is a front view of the ultra-large displacement seismic isolation air duct structure of the second embodiment of the present invention.

[0025] Figure 5 Schematic diagram of the structure of the connecting segment of the second embodiment of the present invention. DETAILED DESCRIPTION

[0026] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] First embodiment

[0029] Reference Figure 1 and Figure 2As shown, the present invention provides an ultra-large displacement seismic isolation air duct structure, comprising: an air duct segment 1 and a connecting segment 2.

[0030] There are two air duct segments 1, one of which is fixedly arranged in the seismic isolation zone of the building structure, and the other is fixedly arranged in the non-seismic isolation zone of the building structure. A seismic isolation gap is formed between the seismic isolation zone and the non-seismic isolation zone.

[0031] The connecting segment 2 is arranged in the seismic isolation gap along the horizontal direction or the vertical direction. The connecting segment 2 is connected between the two air duct segments.

[0032] Specifically, the connection segment 2 includes a plurality of coaxially arranged flexible air ducts 21 and support springs 22. Flanges 23 are formed at both ends of the flexible air duct 21. Two adjacent flexible air ducts 21 are connected by the flanges 23. A plurality of support springs 22 are connected between the flanges 23 at both ends of each flexible air duct 21. The plurality of support springs 22 are arranged along the circumferential direction of the flanges 23. The number of support springs 22 arranged on two adjacent flexible air ducts 21 is different.

[0033] In this embodiment, the flexible air duct 21 is in a rectangular parallelepiped shape. The sliding trolley 26 is arranged along the width direction of the connecting segment 2 .

[0034] In this embodiment, the connecting segment 2 is arranged in the vertical direction. The number of the flexible air duct 21 is at least three. Figure 1 For example, the number of flexible air ducts is 3. The number of support springs 22 provided on the odd-numbered flexible air ducts 21 is the same. The number of support springs 22 provided on the even-numbered flexible air ducts 21 is the same. The number of support springs 22 provided on the odd-numbered flexible air ducts 21 is greater than the number of support springs 22 provided on the even-numbered flexible air ducts 21.

[0035] A plurality of supporting springs 22 are respectively provided on four side surfaces of the flexible air duct 21 in the circumferential direction.

[0036] Preferably, a plurality of support springs 22 are arranged at equal intervals on the side of the flexible air duct 21 .

[0037] In this embodiment, three support springs are arranged on each side of the odd-numbered flexible air ducts. The support springs are spiral springs. Two support springs are arranged on each side of the even-numbered flexible air ducts.

[0038] The ultra-large displacement isolation duct structure in this embodiment is suitable for vertical installation. The vertically installed connecting section is composed of three sections of flexible ducts, and the maximum allowable displacement of each section of the flexible duct is 1 / 3 (266.7) mm of the entire isolation module. The sections of the flexible ducts and the sections of the flexible ducts are connected by flange bolts.

[0039] The main body of each section of flexible air duct is a foldable flexible air duct with angle steel flanges at both ends. The angle steel flanges are two sizes larger than the angle steel flanges of ordinary air ducts of the same specifications. The inner diameter (clearance) of the flexible air duct is the same as the inner diameter of the ordinary air duct. 12 support springs are used between the flanges at both ends of the flexible air duct sections (sections 1 and 3) to connect the flanges of each section of the flexible air duct and support the section of the flexible air duct. The middle section of the flexible air duct uses 8 support springs to connect the flanges of the section of the flexible air duct and support the section of the flexible air duct.

[0040] In this embodiment, the function of the support spring is to keep each section of the flexible air duct at a normal length when there is no earthquake to ensure a good appearance of the flexible air duct after installation. During an earthquake, the spring of each section of the flexible air duct can partially absorb the energy of the earthquake, the flexible air duct will not shake too violently, and the flexible air duct can exert its displacement capacity under the action of the earthquake, the flexible air duct will not be damaged, and after the earthquake, the flexible air duct can quickly return to the original state of each section of the flexible air duct under the action of the spring.

[0041] The spring of each section of the flexible air duct is installed at the outer 1 / 3 of the angle steel flange of the flexible air duct. The purpose is to ensure that the supporting spring of the flexible air duct does not touch the flexible air duct body, so as to avoid or reduce the friction and wear between the flexible air duct and the supporting spring.

[0042] The present invention provides a construction method of a super-large displacement seismic isolation air duct structure, which is characterized by comprising the following steps:

[0043] S1. One air duct segment 1 is fixedly installed in the seismic isolation area of ​​the building structure, and the other air duct segment is fixedly installed in the non-seismic isolation area of ​​the building structure.

[0044] S2, connecting multiple sections of flexible air ducts 21 together through flanges 23.

[0045] S3. Connect multiple support springs 22 between the flanges 23 at both ends of each section of the flexible air duct 21 to form a connecting segment 2. The multiple support springs 22 are arranged along the circumferential direction of the flange 23, so that the multiple sections of the flexible air duct 21 are coaxially arranged.

[0046] S4. The connecting segment 2 is arranged between the seismic isolation area and the non-seismic isolation area to form a seismic isolation gap, and the connecting segment 2 is connected between the two air duct segments.

[0047] Second embodiment

[0048] Reference Figures 3 to 5 As shown, the present invention provides an ultra-large displacement seismic isolation air duct structure, comprising: an air duct segment 1 and a connecting segment 2.

[0049] There are two air duct segments 1, one of which is fixedly arranged in the seismic isolation zone of the building structure, and the other is fixedly arranged in the non-seismic isolation zone of the building structure. A seismic isolation gap is formed between the seismic isolation zone and the non-seismic isolation zone.

[0050] The connecting segment 2 is arranged in the seismic isolation gap along the horizontal direction or the vertical direction. The connecting segment 2 is connected between the two air duct segments.

[0051] Specifically, the connection segment 2 includes a plurality of coaxially arranged flexible air ducts 21 and support springs 22. Flanges 23 are formed at both ends of the flexible air duct 21. Two adjacent flexible air ducts 21 are connected by the flanges 23. A plurality of support springs 22 are connected between the flanges 23 at both ends of each flexible air duct 21. The plurality of support springs 22 are arranged along the circumferential direction of the flanges 23. The number of support springs 22 arranged on two adjacent flexible air ducts 21 is different.

[0052] In this embodiment, the flexible air duct 21 is in a rectangular parallelepiped shape. The sliding trolley 26 is arranged along the width direction of the connecting segment 2 .

[0053] In this embodiment, the connecting segment 2 is arranged in the horizontal direction, and the connecting segment 2 also includes a supporting plate 24 arranged below the connecting segment 2. The opposite sides of the supporting plate 24 are suspended on the ceiling of the building structure through suspension rods 25. A plurality of sliding trolleys 26 are movably arranged on the supporting plate 24, and the flanges 23 of two adjacent sections of the flexible air duct 21 are fixed on the sliding trolleys 26.

[0054] The number of flexible air ducts 21 is at least five, the number of support springs 22 set on the odd-numbered flexible air ducts 21 is the same, the number of support springs 22 set on the even-numbered flexible air ducts 21 is the same, and the number of support springs 22 set on the odd-numbered flexible air ducts 21 is greater than the number of support springs 22 set on the even-numbered flexible air ducts 21.

[0055] The flexible air duct 21 is in a rectangular parallelepiped shape. A plurality of support springs 22 are respectively disposed on four side surfaces of the flexible air duct 21 in the circumferential direction.

[0056] Preferably, a plurality of support springs 22 are arranged at equal intervals on the side of the flexible air duct 21 .

[0057] There are 5 sections of flexible air duct, among which the support spring installation form of sections 1, 3 and 5 is the same as the two side sections of the vertically installed flexible air duct in the first embodiment, and the support spring installation form of sections 2 and 4 is the same as the middle section of the vertically installed flexible air duct in the first embodiment; the lower end of the flange of each section of the flexible air duct is fixed on the sliding trolley on the supporting plate (the sliding trolley can slide freely on the supporting plate), with the purpose of ensuring the straightness and durability of the seismic isolation air duct installation.

[0058] The present invention provides a construction method of a super-large displacement seismic isolation air duct structure, comprising the following steps:

[0059] S10, fixing one air duct segment 1 in the seismic isolation area of ​​the building structure, and fixing another air duct segment in the non-seismic isolation area of ​​the building structure.

[0060] S20, connecting multiple sections of flexible air ducts 21 together through flanges 23.

[0061] Before installing the flexible air duct, a support plate is suspended on the ceiling of the building structure in the seismic isolation zone, and the elevation of the support plate is lower than the elevation of the bottom of the flexible air duct.

[0062] After the support plate is installed, a sliding trolley is movably arranged on the support plate.

[0063] The sliding trolley includes a base and two rows of rollers installed on the base. The base is arranged along the width direction of the flexible air duct. The two rows of rollers are arranged along the width direction of the earthquake. The rollers are universal wheels.

[0064] Multiple sections of flexible air duct 21 are connected together through flange 23, and the flange of the flexible air duct is placed on a sliding trolley.

[0065] S30, multiple support springs 22 are connected between the flanges 23 at both ends of each section of the flexible air duct 21 to form a connecting segment 2, and the multiple support springs 22 are arranged along the circumferential direction of the flange 23, so that the multiple sections of the flexible air duct 21 are coaxially arranged.

[0066] After the support spring is installed on the flexible air duct, the flanges of two adjacent sections of the flexible air duct are fixedly installed on the pulley trolley, so that the flexible air duct can slide universally on the support plate.

[0067] S40, disposing the connection segment 2 between the seismic isolation area and the non-seismic isolation area to form a seismic isolation gap, and connecting the connection segment 2 between the two air duct segments.

[0068] The flexible air ducts at both ends of the assembled connecting segment are connected to the air duct segment through flanges.

[0069] The connection segments in the ultra-large displacement seismic isolation duct structure of the present invention are composed of "multi-section" flexible ducts, which subverts the traditional "single-section" structure of seismic isolation ducts. The multi-section structure makes the "folding" part of the seismic isolation duct (module) more uniform, which not only improves the appearance of the seismic isolation duct, but also prevents the seismic isolation module from not having the automatic recovery function or not being able to recover in place after an earthquake.

[0070] The allowable deformation of the traditional seismic isolation air duct does not exceed 400mm, and the allowable deformation of the super-large displacement seismic isolation air duct structure of the present invention is 800mm. The use of this theory can further increase the deformation of the seismic isolation air duct.

[0071] Traditional seismic isolation air ducts are studied based on the seismic isolation air duct itself. The research on the ultra-large displacement seismic isolation air duct structure of the present invention goes beyond the seismic isolation air duct itself, overturning the shortcomings of traditional seismic isolation air ducts that cannot adapt to large earthquakes, large displacements and are difficult to automatically reset.

[0072] The flanges on the four sides of each section of the flexible air duct of the ultra-large displacement seismic isolation air duct structure of the present invention are all equipped with support springs, which is essentially different from the spring installation structures of all other seismic isolation air duct inventions. The function of the support springs is to keep each section of the flexible air duct in a normal length state in non-earthquake conditions to ensure a good appearance after the seismic isolation air duct is installed. During an earthquake, it can partially absorb the seismic energy to ensure that the seismic isolation air duct will not shake too violently and that the seismic isolation air duct can exert its displacement capacity under the action of the earthquake, and the air duct will not be damaged. After the earthquake, the seismic isolation air duct can be quickly reset under the action of the springs. On the other hand, by changing the number of support springs set on the flexible air duct, during an earthquake, the connecting segments can be induced to undergo adaptive deformation.

[0073] The ultra-large displacement seismic isolation duct structure of the present invention proposes for the first time a new solution that different structural forms should be used for horizontal and vertical installation of seismic isolation ducts. When installed horizontally, a support plate plus a sliding trolley is used to support the seismic isolation duct, thereby improving the visual quality and seismic isolation performance of the seismic isolation duct installation.

[0074] The ultra-large displacement seismic isolation duct structure of the present invention solves the problem of ultra-large displacement of seismic isolation of air ducts. The seismic isolation capacity of the ultra-large displacement seismic isolation duct structure of the present invention for the air duct system is not lower than the seismic isolation capacity of the seismic isolation support plus damper of the civil engineering for the structure, turning the ultra-large displacement seismic isolation air duct from theory into a safe and reliable reality. The ultra-large displacement seismic isolation duct structure of the present invention is safe, reliable, and durable. It does not need to be repaired after an earthquake and can be applied to various ventilation and air-conditioning systems, especially medical systems and fire protection systems. Its highly reliable seismic isolation performance and automatic reset function can ensure the ventilation performance of the air duct is interrupted, which can save countless lives.

[0075] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A super-large displacement seismic isolation duct structure, characterized in that: include: Two air duct segments, one air duct segment is fixedly arranged in the seismic isolation zone of the building structure, and the other air duct segment is fixedly arranged in the non-seismic isolation zone of the building structure, and a seismic isolation gap is formed between the seismic isolation zone and the non-seismic isolation zone; A connecting segment is connected between the two air duct segments and is arranged in the seismic isolation joint along the horizontal direction or the vertical direction. The connecting segment includes multiple coaxially arranged flexible air duct sections and support springs. Flanges are formed at both ends of the flexible air duct. Two adjacent flexible air duct sections are connected by the flanges. Multiple support springs are connected between the flanges at both ends of each flexible air duct section. The multiple support springs are arranged along the circumferential direction of the flange, and the number of support springs arranged on two adjacent flexible air duct sections is different.

2. The ultra-large displacement seismic isolation air duct structure according to claim 1 is characterized in that: The connecting segments are arranged along the vertical direction, the number of the flexible air ducts is at least three, the number of support springs arranged on the odd-numbered flexible air ducts is the same, the number of support springs arranged on the even-numbered flexible air ducts is the same, and the number of support springs arranged on the odd-numbered flexible air ducts is greater than the number of support springs arranged on the even-numbered flexible air ducts.

3. The ultra-large displacement seismic isolation air duct structure according to claim 1 is characterized in that: The connecting segment is arranged in a horizontal direction, and the connecting segment also includes a supporting plate arranged below the connecting segment. The opposite sides of the supporting plate are suspended on the ceiling of the building structure through suspension rods. A plurality of sliding trolleys are movably arranged on the supporting plate, and flanges of two adjacent sections of flexible air ducts are fixed on the sliding trolleys.

4. The ultra-large displacement seismic isolation air duct structure according to claim 3 is characterized in that: The number of the flexible air ducts is at least five, the number of support springs arranged on the odd-numbered flexible air ducts is the same, the number of support springs arranged on the even-numbered flexible air ducts is the same, and the number of support springs arranged on the odd-numbered flexible air ducts is greater than the number of support springs arranged on the even-numbered flexible air ducts.

5. The ultra-large displacement seismic isolation air duct structure according to claim 4 is characterized in that: The flexible air duct is in a rectangular shape, and a plurality of the support springs are respectively arranged on four side surfaces of the flexible air duct in a circumferential direction.

6. The ultra-large displacement seismic isolation air duct structure according to claim 5, characterized in that: A plurality of the support springs are arranged at equal intervals on the side surface of the flexible air duct.

7. The ultra-large displacement seismic isolation air duct structure according to claim 1, characterized in that: The sliding trolley is arranged along the width direction of the connecting segment.

8. A construction method for the ultra-large displacement seismic isolation air duct structure according to any one of claims 1 to 7, characterized in that: The following steps are involved: One air duct segment is fixedly installed in the seismic isolation area of ​​the building structure, and the other air duct segment is fixedly installed in the non-seismic isolation area of ​​the building structure; Connect multiple sections of flexible air ducts together through flanges; Connecting a plurality of support springs between the flanges at both ends of each section of the flexible air duct to form a connection section, wherein the plurality of support springs are arranged along the circumferential direction of the flanges, so that the plurality of sections of the flexible air duct are coaxially arranged; The connecting segment is arranged in a seismic isolation gap formed between the seismic isolation zone and the non-seismic isolation zone, and the connecting segment is connected between the two air duct segments.

Images