CN217517956U - Inverted beam structure - Google Patents

Abstract

The application relates to a reversed beam structure for installing a curtain wall. Comprises a reversed beam structure, a structural beam, a curtain wall and a floor plate. The installed part sets up on the structure roof beam, and the installed part is prefabricated alloy material, and coupling assembling sets up on the installed part, and coupling assembling connects installed part and curtain. Above-mentioned technical scheme through setting up the installed part into prefabricated alloy material, can avoid traditional concrete reversed beam at first need on-the-spot formwork, pour and cause the problem that construction speed is slow, delay the time limit for a project. Meanwhile, the prefabricated alloy material can fix the connecting assembly at the designated position of the mounting part in advance before installation, and the problems that the traditional curtain wall embedded part is difficult to position in the concrete reversed beam and deviation is generated during installation can be avoided. Secondly, the precast alloy material is formed when leaving the factory, so that the problems that the quality of the structure is influenced due to the arrangement of the embedded part, the connection strength between the embedded part and the structure cannot be ensured, the potential safety hazard is generated and the like when the concrete reversed beam is cast in place can be avoided.

Description

Inverted beam structure

Technical Field

The application relates to the technical field of buildings, in particular to a reversed beam structure.

Background

In recent years, the development of building industrialization is greatly promoted by the country, and how to improve the building industrialization degree and accelerate the construction speed is widely concerned.

The building industrialization mainly pushed by the state at the present stage is a system mainly comprising a steel structure frame, an outer curtain wall enclosure part and a concrete floor plate, wherein in the system, for better ensuring the integrity and the earthquake resistance of the building, a concrete inverted beam pouring part is usually arranged at the enclosure part of the outer curtain wall of the building in the construction process and is used for embedding curtain wall embedded parts. However, the construction method has two disadvantages of slow construction speed and poor forming effect.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is necessary to provide a reversed beam structure for solving the problems of a slow construction speed and a poor forming effect of a concrete reversed beam.

An inverted beam structure for installing a curtain wall comprises an installation part and a connecting assembly. The installed part set up in on the structure roof beam, the installed part is prefabricated alloy material, coupling assembling set up in on the installed part, just coupling assembling connects the installed part reaches the curtain.

Above-mentioned technical scheme sets up to the prealloy material through with the installed part, has following technological effect: 1. the installed part of precast alloy material is fashioned part, can the direct mount on the structure roof beam to can avoid among the prior art concrete inverted beam to pour the piece and need earlier on-the-spot formwork, then pour and wait to solidify, the process that demolish the template at last and bring is loaded down with trivial details and the problem that the construction speed is slow, delays the time limit for a project that leads to the fact from this. 2. The mounting part made of the prefabricated alloy material can be used for directly fixing the connecting assembly used for mounting the curtain wall enclosure blocking part on the mounting part, so that the problems that in the prior art, the curtain wall enclosure blocking part is connected with the curtain wall embedded part in the concrete inverted beam pouring part by the curtain wall embedded part and the mounting accuracy of the connecting assembly is low due to the fact that the curtain wall embedded part is difficult to position in the concrete inverted beam pouring part are solved. 3. The concrete inverted beam casting part can generate certain interference due to the arrangement of the embedded parts when cast in place, the problems of insufficient casting height, leakage vibration and incompact vibration of the concrete inverted beam casting part in the construction process, such as honeycomb and holes are formed, the installation part made of prefabricated alloy materials is a formed part and does not need to be provided with a curtain wall embedded part, and therefore the quality problem of an inverted beam structure caused by the influence of the curtain wall embedded part can be avoided. 4. Because the concrete inverted beam among the prior art need pour after the concrete initial set of floor bearing plate, two times concrete placement time is inconsistent and forms the cold joint easily in the juncture of floor bearing plate and inverted beam, has the infiltration hidden danger, has increased waterproof operation work load, and causes the problem that the concrete leaks and leads to the pollution of facade easily, and the inverted beam structure of prefabricated alloy material structure need not to carry out the secondary pouring, can avoid because of the infiltration problem that the secondary pouring concrete produced. 5. When the concrete inverted beam in the prior art is demolished after pouring, the inverted beam is usually arranged at the edge of the structure, so that the potential safety hazard of high-altitude parabolic movement exists in the demolition process of the formwork. And the reverse beam structure of the precast alloy does not need to be disassembled after being fixedly connected to the structural beam, so that the safety problem generated during the disassembly of the template can be avoided.

In one embodiment, the mounting member includes a mounting portion, the mounting portion is disposed at a bottom of the mounting member and includes a mounting surface, and the mounting portion is fixedly connected to the structural beam through the mounting surface.

Above-mentioned technical scheme through setting up the installation department into the plane of installed part bottom, can increase the installation area between installed part and the structure roof beam, improves the installation stability between installed part and the structure roof beam.

In one embodiment, the attachment of the mounting portion to the structural beam is an intermittent weld.

Above-mentioned technical scheme, through intermittent welding's mode, can reduce installed part and structural beam because of the deformation that the welding produced when fixed connection to for welding deformation part reservation space.

In one embodiment, the mounting member comprises a fence portion plumbed to limit the floor plate.

Above-mentioned technical scheme, through the fender portion that encloses that the plummet set up, the installed part can play spacing and the effect of blocking the floor board, need not independent formwork and can accomplish the back direct casting concrete at floor board reinforcement ligature.

In one embodiment, the installed part includes a supporting part and a connecting part, the connecting part is arranged on one side of the installed part far away from the installation part, the supporting part is connected with the installation part and the connecting part, and the connecting part is provided with an installation space for installing the connecting component.

Above-mentioned technical scheme, through setting up connecting portion, curtain coupling assembling can accurate location, improves the connection stability between curtain and the installed part. Meanwhile, the supporting part can support the connecting part and the connecting assembly and can provide the overall structural strength of the mounting part.

In one embodiment, the support part includes a support rod, one end of the support rod is connected to the mounting part, and the other end of the support rod is connected to the connecting part.

Above-mentioned technical scheme through set up the bracing piece in the connecting piece, can further improve the structural strength of installed part.

In one embodiment, the number of the supporting rods is at least two, and a plurality of the supporting rods are obliquely arranged on the mounting part and are arranged in a staggered manner.

Above-mentioned technical scheme is through setting up many spinal branchs vaulting pole and many spinal branchs vaulting pole crisscross setting each other, can averagely bear each department load on the installed part to improve the support intensity of supporting part with less material cost.

In one embodiment, the connecting assembly includes a first connecting member and a second connecting member, the first connecting member is disposed on the connecting portion, and the first connecting member has a groove, the second connecting member is connected to the groove, and the second connecting member is connected to the enclosing member.

Above-mentioned technical scheme, through the cooperation of first connecting piece and second connecting piece, enclose fender piece and can fixed connection on the second connecting piece.

In one embodiment, the mounting member is made of steel.

Above-mentioned technical scheme, the installed part of making through steel possesses sufficient material strength and has lower material cost.

In one embodiment, the connecting assembly is provided with an anti-corrosion coating.

Above-mentioned technical scheme through be provided with anti-corrosion coating on coupling assembling, prevents that coupling assembling from reducing joint strength because of rustting, leads to the curtain to be connected the unstable safety problem that produces with the building main part.

In summary, the present application has the following beneficial effects:

1. the utility model provides a reverse beam structure can avoid traditional concrete reverse beam to need on-spot formwork, pour and cause the problem that construction speed is slow, delay the time limit for a project.

2. The utility model provides a reverse beam structure can avoid the concrete reverse beam to have the infiltration hidden danger, needs extra waterproof operation and causes the concrete to leak easily and lead to the problem that the facade pollutes.

3. The utility model provides an anti-beam structure can fix coupling assembling in advance at the assigned position of installed part before the installation, can avoid the curtain built-in fitting to fix a position the difficulty in the anti-beam of concrete, and the installation produces the problem of deviation.

4. The utility model provides a full intensity has during the installation of anti-roof beam structure, need not to demolish the mould, can avoid the concrete anti-roof beam to demolish the potential safety hazard problem that the in-process has the object thing in high altitude at the template.

5. The utility model provides a reverse beam structure can be installed simultaneously along with the structure roof beam, need not to carry out operations such as formwork, pour, can shorten the activity duration, improves the efficiency of construction.

6. The utility model provides an anti-beam structure has complete structure promptly when dispatching from the factory, and built-in fitting lug connection need not to pour on the installed part, can avoid because of the anti-beam structure quality of pouring production is poor, the not enough safety problem that leads to of built-in fitting joint strength.

Drawings

FIG. 1 is a schematic structural view of a concrete inverted beam in the prior art;

fig. 2 is a schematic structural diagram of an inverted beam structure according to an embodiment of the present application.

Description of reference numerals:

10. concrete reversed beam; 20. curtain wall embedded parts; 100. a reversed beam structure; 200. a structural beam; 300. a surrounding blocking part; 400. a floor plate; 110. a mounting member; 120. a connection assembly; 111. an installation part; 112. a surrounding blocking part; 113. a support portion; 114. a connecting portion; 1131. a support bar; 121. a first connecting member; 122. a second connecting member.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the current steel structure frame, outer curtain wall and concrete floor's quick system of building, curtain wall and steel structure main part set up the concrete structure back beam usually at concrete floor's structure edge for fixed curtain wall built-in fitting, then welding coupling assembling on the built-in fitting, through coupling assembling fixed connection curtain. However, there are many problems due to the need for on-site formwork erection, casting and form removal of the concrete inverted beam.

Referring to fig. 1, fig. 1 shows a schematic structural diagram of a concrete inverted beam 10 in the prior art, a large number of curtain wall embedded parts 20 need to be arranged in the concrete inverted beam 10, and the embedded parts are easily deviated from the original positioning due to the washing of concrete in the concrete pouring process. Meanwhile, due to the existence of the curtain wall embedded part 20, the concrete in the concrete inverted beam 10 is not poured enough at the position of the curtain wall embedded part 20, and the structural strength of the concrete inverted beam 10 is affected by the problems of hole generation and the like.

Therefore, it is necessary to provide a new type of inverted beam structure to solve the problems of poor structural strength of the concrete inverted beam 10, inaccurate installation of the curtain wall embedded part 20, and long construction period.

Referring to fig. 2, fig. 2 is a schematic view of an inverted beam structure for installing the fence 300 according to an embodiment of the present application, including an inverted beam structure 100, a structural beam 200, a fence 300, and a floor slab 400. The structural beam 200 is a steel structural body of a building and is used for providing an installation foundation of the inverted beam structure 100, the enclosure member 300 is an outer wall enclosure of the building, the inverted beam structure 100 comprises a mounting member 110 and a connecting assembly 120, the mounting member 110 is fixedly arranged on the structural beam 200, and the connecting assembly 120 is directly arranged on the mounting member 110 to be connected with the enclosure member 300 without arranging embedded parts.

Specifically, the mounting member 110 is made of a prefabricated alloy material, and the prefabricated alloy material is used for manufacturing the inverted beam structure, so that the inverted beam structure has a complete structure and sufficient strength when leaving a factory, and operations such as formwork erecting, pouring and formwork removal are not required to be performed on a construction site.

Further, as the inverted beam structure needs to be connected with the enclosing part 300, part of the inverted beam is arranged at the edge of the building, and as the precast alloy material does not need to be subjected to form removal operation on a construction site, the risk that heavy objects such as embedded parts, templates and the like fall from the high altitude during the form removal operation can be avoided.

The inverted beam structure made of the prefabricated alloy material has a stable structure, and the connecting assembly 120 can be directly welded to the inverted beam structure without arranging an embedded part, so that the problem that the connection of the fence part 300 is unstable due to inaccurate positioning of the embedded part in the inverted beam is solved.

Meanwhile, due to the fact that the embedded parts are omitted, the inverted beam structure made of the prefabricated alloy materials can prevent the embedded parts from being arranged in the inverted beam structure to affect concrete pouring, the problems that the pouring height of the embedded parts is insufficient, vibration leakage occurs and vibration is not compact to form honeycombs and holes and the like are caused in the inverted beam structure, the structural quality is affected, the connection strength of the embedded parts and the structure cannot be guaranteed, and potential safety hazards and the like are caused.

The installation member 110 can be directly installed in synchronization with the structural beam 200 without waiting for the concrete floor plate 400 to be poured and constructed, so that the problem that in the prior art, the concrete floor plate 400 and the concrete inverted beam 10 are easy to form a cold joint at the junction of the floor plate 400 and the inverted beam due to inconsistent concrete pouring time of two times to cause water seepage can be avoided. Further, the problems of slow construction speed, high construction cost and additional construction risk caused by adding a large amount of waterproof engineering for preventing water seepage are avoided.

Specifically in the present embodiment, the mount 110 is preferably made of a steel material. The steel material has enough strength and can meet the requirements of construction materials of the inverted beam structure, and meanwhile, the price of the steel material is relatively low, so that the material cost of the inverted beam structure can be reduced.

The mounting member 110 includes a mounting portion 111, a fence portion 112, a support portion 113, and a connecting portion 114. Specifically, the mounting part 111 is disposed at the bottom of the mounting part 110 for connecting the structural beam 200, and provides a mounting base for the mounting part 110 as a whole. In particular, in the present embodiment, the mounting portion 111 has a smooth mounting surface to increase a contact area with the structural beam 200, thereby improving structural stability of the mounting member 110.

In some embodiments, the mounting portion 111 is fixedly connected to the structural beam 200 to improve the mounting stability between the mounting member 110 and the structural beam 200. More specifically, the mounting portion 111 is welded directly to the top of the structural beam 200, and both side fillet welds of the mounting portion 111 have a leg size of 6 mm.

In other embodiments, the mounting portion 111 and the top of the structural beam 200 are welded intermittently to reduce deformation of the mounting member 110 and the structural beam 200 due to welding when they are fixedly coupled, and to provide a space for a welding deformation portion. When the intermittent welding process is adopted, the length of the welding line is 100mm, and the interval is 300 mm.

In other embodiments, the mounting portion 111 and the structural beam 200 are detachably connected, so that field operation can be flexibly performed when special working conditions are met. In the embodiment, the mounting portion 111 and the structural beam 200 are provided with corresponding screw holes, and the mounting portion 111 and the structural beam 200 are detachably connected by bolts.

In other embodiments, the mounting member 110 is integrally formed with the structural beam 200, which can reduce the manufacturing cost of the connection between the mounting member 110 and the structural beam 200 and achieve higher connection strength.

The connection mode between the mounting portion 111 and the structural beam 200 is not limited to the embodiment of the present application, and can be adjusted by a person skilled in the art according to the conventional technical means and common knowledge in the art.

The installation member 110 is provided with a surrounding block 112 at a side thereof adjacent to the concrete floor panel 400 for limiting the concrete floor panel 400. Specifically, the dam 112 is plumbed to conform to the side of the floor panel 400. The height of the surrounding part 112 is higher than that of the floor plate 400 so as to completely limit and block the floor plate 400 and prevent the floor plate 400 from sliding.

The mounting member 110 further includes a connection part 114, and the connection part 114 is disposed at an upper side of the mounting member 110 to provide a mounting space of the connection assembly 120. Specifically, the connecting portion 114 includes a top portion of the mounting member 110 and a sidewall space above the fence 112, the connecting member 120 is fixedly connected to the mounting member 110, and the mounting member 110 is welded to the fence 300 through the connecting member 120, so as to realize a stable connecting structure between the structural beam 200, the mounting member 110, the connecting member 120, and the fence 300.

The connecting assembly 120 includes a first connecting member 121 and a second connecting member 122, the first connecting member 121 is disposed on the connecting portion 114, the connecting portion 114 is provided with a groove for mounting the second connecting member 122, one side of the second connecting member 122 is connected with the groove, and one side of the second connecting member 122 close to the curtain wall enclosure 300 is provided with a plurality of mounting points for welding the enclosure 300 to the second connecting member 122. By the assembly of the first and second connectors 121 and 122, the installation position of the enclosure 300 is provided and the enclosure 300 can be fixedly connected to the mounting member 110.

Specifically, in this embodiment, the connecting assembly 120 includes a galvanized steel through for the curtain wall, a galvanized steel groove for bending the curtain wall, and galvanized steel angle for the curtain wall. The curtain wall bending galvanized steel groove is fixedly arranged on the connecting portion 114 at the top of the mounting part 110, the curtain wall galvanized steel is welded on one side, deviating from the connecting portion 114, of the curtain wall bending galvanized steel groove, and the curtain wall galvanized angle steel is fixedly arranged on the connecting portion 114 located on the side wall of the upper side of the surrounding blocking portion 112. The curtain wall bending galvanized steel groove and the curtain wall galvanized steel through are provided with connecting points for fixedly connecting the enclosing and blocking piece 300.

The connecting assembly 120 is further provided with an anti-corrosion coating to prevent the connecting assembly 120 from rusting and reducing the connecting strength, so that the safety problem caused by unstable connection of the fence 300 and the building main body is avoided.

In other embodiments, the connecting assembly 120 can be directly disposed in the mounting member 110 and integrally formed with the mounting member 110, so as to reduce the processing cost, shorten the construction time, and improve the connection strength.

The mounting member 110 further includes a support portion 113, and the support portion 113 is disposed between the connection portion 114 and the mounting portion 111 for providing the overall structural strength of the mounting member 110. Specifically, the lower side of the supporting portion 113 is connected to the mounting portion 111, and the upper side of the supporting portion 113 is connected to the connecting portion 114, for supporting the connecting portion 114 and the connecting assembly 120. In the embodiment, the supporting portion 113 includes a side wall of the mounting member 110 opposite to the side of the surrounding portion 112, and the side wall is a steel plate structure with a thickness of 6mm to provide sufficient supporting strength.

The supporting portion 113 includes a supporting rod 1131, one end of the supporting rod 1131 is connected to the mounting portion 111, and the other end is connected to the connecting portion 114, for supporting the connecting portion 114 and the connecting assembly 120 connected to the connecting portion 114. Specifically, in the present embodiment, the support bars 1131 include at least two support bars, one end of one support bar 1131 close to the mounting portion 111 is disposed on the mounting portion 111 at an inclination angle of 30 degrees, another end of the other support bar 1131 close to the connecting portion 114 is also connected to the connecting portion 114 at an inclination angle of 30 degrees, and the two support bars 1131 are staggered with each other to averagely bear loads on the mounting portion 110, and meanwhile, the support strength of the support portion 113 is improved by disposing the support bars 1131 with less material cost.

It should be noted that the arrangement of the support bar 1131 is not limited to that described in this embodiment, and may be a beam-type simple support, a rigid frame-type or a multi-span continuous steel truss-type structure, and the like, and those skilled in the art can adjust and select the support bar according to actual situations.

In the present embodiment, the mounting member 110 is a square tube structure, and the square tube structure has a hollow structure with a rectangular cross section. The square tube is abutted against one side wall of the floor plate 400 to form a surrounding blocking part 112, one side wall of the surrounding blocking part 112 departing from the floor plate 400 is a supporting part 113, the bottom of the square tube is welded on the structural beam 200 to form an installation part 111, and the top of the square tube is welded with a steel plate to form a connecting part 114. More specifically, the square tube is a square tube with a specification of 250x100x6mm, and the end is welded and sealed by a 6mm steel plate.

It can be understood that the length of the square tube can be adaptively adjusted and designed according to the side length of the floor board 400. It should be noted that the specification of the square tube is not limited to the specification described in this embodiment, and those skilled in the art can adjust and select the specification according to the actual situation.

The application of the inverted beam structure for curtain wall installation has the following implementation principles: the reverse beam structure of the prefabricated alloy part replaces the traditional concrete reverse beam structure, and the steps of formwork support, pouring, forming and formwork removal are not needed to be carried out on site, so that the construction period is shortened, and the construction speed is increased. Meanwhile, the curtain wall connecting assembly can be directly welded on the inverted beam structure of the prefabricated alloy part, a curtain wall embedded part is not needed to be arranged, and the problem that the concrete inverted beam forming effect is poor due to the curtain wall embedded part can be completely eliminated.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. An inverted beam structure, comprising:

the mounting piece (110) is arranged on the structural beam (200), and the mounting piece (110) is made of a prefabricated alloy material; and

the connecting component (120) is arranged on the mounting component (110), and the connecting component (120) is connected with the mounting component (110) and the enclosing component (300).

2. The inverted beam structure according to claim 1, wherein the mounting member (110) comprises a mounting portion (111), the mounting portion (111) is disposed on a side of the mounting member (110) adjacent to the structural beam (200), the mounting portion (111) has a mounting surface, and the mounting portion (111) is fixedly connected to the structural beam (200) through the mounting surface.

3. The inverted beam structure according to claim 2, wherein the attachment means (111) is an intermittent weld with the structural beam (200).

4. The inverted beam structure according to claim 2, wherein the mounting member (110) comprises a fence portion (112), the fence portion (112) is vertically arranged relative to the mounting portion (111), and the fence portion (112) is used for limiting a pouring boundary of the floor plate (400).

5. The inverted beam structure according to claim 2, wherein the mounting member (110) includes a support portion (113) and a connection portion (114), the connection portion (114) is disposed on a side of the mounting member (110) away from the mounting portion (111), the support portion (113) connects the mounting portion (111) and the connection portion (114), and a mounting space for mounting the connection assembly (120) is provided on the connection portion (114).

6. The inverted beam structure according to claim 5, wherein the support portion (113) comprises a support bar (1131), one end of the support bar (1131) is connected to the mounting portion (111), and the other end of the support bar is connected to the connecting portion (114).

7. The inverted beam structure according to claim 6, wherein the support rods comprise at least two support rods, and at least two support rods (1131) are obliquely arranged on the mounting portion (111) and are staggered with each other.

8. The inverted beam structure according to claim 5, wherein the connecting assembly (120) comprises a first connecting member (121) and a second connecting member (122), the first connecting member (121) is disposed on the connecting portion (114), a groove is formed on the first connecting member (121), the second connecting member (122) is connected to the groove, and the second connecting member (122) is connected to the enclosing member (300).

9. The counter beam structure according to claim 1, characterized in that the mounting member (110) is made of steel.

10. An inverted beam structure according to claim 8, wherein the connection assembly (120) is provided with an anti-corrosion coating.

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