WO2023028818A1

WO2023028818A1 - Outer hanger for cast-in-place air corridor construction of high-rise building structure and construction method therefor

Info

Publication number: WO2023028818A1
Application number: PCT/CN2021/115589
Authority: WO
Inventors: 胡松涛; 贺宏波; 王杰; 徐俊; 郭乐
Original assignee: 中铁上海工程局集团第三工程有限公司; 中铁上海工程局集团有限公司
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2023-03-09
Also published as: DE212021000476U1

Abstract

Disclosed in the present invention are an outer hanger for cast-in-place air corridor construction of a high-rise building structure and a construction method therefor. The outer hanger comprises: several horizontal support beams, the two ends of each horizontal support beam being horizontally suspended on the two sides of a current layer-cured cast-in-place concrete corridor, and being fixed by means of locking members pre-buried above the corridor; and several outer hanger bodies located on the two sides of the corridor, and fixedly connected to the ends of the several horizontal support beams. Each outer hanger body comprises two layers of protection structures; a bottom-layer protection structure is fixed to the horizontal support beams, and comprises a bottom-layer walkway plate and several vertical support rods located on the two sides of the bottom-layer walkway plate; an upper-layer protection structure comprises an upper-layer walkway plate and several vertical protection rods located on the outer side of the upper-layer walkway plate; the vertical support rods are used for supporting the upper-layer walkway plate; and the height of the upper walkway plate is matched with the height of a higher-layer corridor to be constructed. By using the outer hanger provided by the present invention, the construction of a cast-in-situ reinforced concrete structure of the air corridor of the high-rise building structure can be performed more safely, reliably and conveniently.

Description

High-rise building structure embodies the external hanger and its construction method for the construction of poured aerial corridors

technical field

The invention relates to the technical field of high-rise building construction, in particular to an external hanger for the construction of a high-rise building structure reflecting a poured aerial corridor and a construction method thereof.

Background technique

At present, the cantilevered scaffolding system is mostly used for the outer frame system at the corridor, using I-beam six layers and one overhang (cantilever steel pipe fasteners shall not exceed 25 meters in height according to relevant regulations). However, high-rise buildings need to use a large number of steel pipe fasteners. The construction requires a lot of labor, the construction is difficult, the construction period is long, and the safety risk of the construction is high. It is necessary to reserve a large number of I-shaped steel holes in the outer wall, which increases the number of blocked holes in the outer wall. The amount of engineering and the construction difficulty of exterior wall waterproofing.

Air corridors in high-rise buildings are mostly found between two taller buildings (main buildings), and their structures are cast-in-place reinforced concrete structures. During construction, formwork needs to be laid and concrete poured, and scaffolding needs to be erected for construction. However, when When the air corridor (mainly the beam supporting its main body) adopts a pure reinforced concrete structure, because it cannot bear external forces before solidification, it is even necessary to rely on the reinforcement cage on other structures to ensure its accurate position during construction, and it is necessary to set up support. Formwork and scaffolding; and when the ground height of the aerial corridor is high, the erected formwork and scaffolding are easy to lose stability, and relevant regulations do not allow this, the cost is high, and disassembly is difficult, and there is a greater safety risk .

disclosure of invention

The object of the present invention is to provide an external hanger for the construction of high-rise building structure reflecting the pouring corridor in the sky and its construction method, so as to realize safe, reliable and convenient construction of the cast-in-place reinforced concrete structure of the sky corridor of the high-rise building structure.

In order to achieve the above object, the present invention is achieved through the following technical solutions:

A high-rise building structure embodies an external hanger for the construction of an aerial corridor, comprising:

A number of horizontal support beams, the two ends of each horizontal support beam cantilever horizontally on both sides of the cured cast-in-place concrete corridor on the current floor, and are fixed by locking parts pre-buried above the cast-in-place concrete corridor. fixed;

Several external hanger bodies located on both sides of the corridor, each of which is fixedly connected to the ends of several horizontal support beams;

The main body of the external hanger includes a two-layer protective structure, wherein the bottom protective structure is fixed to the horizontal support beam, including the bottom walkway slab and several vertical support rods located on both sides of the bottom walkway slab, and the upper protective structure includes the upper walkway slab and several vertical protective rods located outside the upper walkway slab, the vertical support rods are used to support the upper walkway slab, the height of the upper walkway slab is the same as the height of the upper corridor to be constructed adapt.

Further, the bottom protection structure also includes two bottom horizontal horizontal bars parallel to each other and along the extension direction of the corridor, and several bottom horizontal vertical bars connecting the two bottom horizontal bars. The bottom walkway board is laid on On several bottom horizontal longitudinal bars, several vertical support bars are arranged on two bottom horizontal cross bars;

The upper protective structure also includes two upper horizontal bars parallel to each other and along the extending direction of the corridor, several upper horizontal longitudinal bars connecting the two upper horizontal bars, and the upper layer walkway boards are laid on several upper layer On the horizontal longitudinal bar, several vertical protective bars are arranged on the outer upper level horizontal bar;

Each upper level horizontal bar connects several vertical support bars on one side of the bottom walkway slab.

Further, several vertical support rods located on the outside are connected to the bottom horizontal protection rods, and several vertical protection rods are connected to the upper horizontal protection rods.

Further, several vertical support rods located on the outside are connected to the bottom protection mesh, and several vertical protection rods are connected to the upper protection mesh.

Further, in the bottom protection structure, the vertical support rods on both sides of the bottom walkway slab are oppositely arranged, and a transverse tie rod is connected between the two oppositely arranged vertical support rods.

Further, a diagonal tie rod is connected between the transverse tie rod and the upper protective structure.

Further, in the two hanger main bodies on both sides of the corridor, the inner vertical support rods in the bottom protection structure are arranged oppositely, and a horizontal tie rod is connected between the two oppositely arranged vertical support rods.

Further, the inner sides of the bottom walkway slab and the upper walkway slab are provided with flaps.

Further, the locking member is a U-shaped pipe clamp, including a U-shaped sleeve, two bolts and a steel pressure plate, and the two free ends of the U-shaped sleeve are provided with internal threads that cooperate with the bolts. There are two through holes on the steel pressure plate, the bottom of the U-shaped sleeve is pre-buried in concrete, the horizontal support beam is placed between the two free ends of the U-shaped sleeve, and the bolts pass through The through hole of the steel pressing plate is threadedly connected with the free end of the U-shaped sleeve, and the steel pressing plate is used for pressing and fastening the horizontal support beam.

A kind of construction method of the external hanger used for the construction of the high-rise building structure embodied in the sky corridor as described above, comprising the following steps:

S1. Pre-embed the locking parts in the cast-in-place concrete of the corridor;

S2. After the concrete is solidified to a certain extent, place several horizontal support beams longitudinally on the corridor and make both ends of the horizontal cantilever on both sides of the corridor, and use the locking parts to fix the horizontal support beams;

S3. On both sides of the corridor, the main body of the external hanger is fixedly connected to the end of the horizontal support beam;

Perform cast-in-place construction on the upper floor corridor on the upper walkway slab of the main body of the external hanger, and repeat steps S1 to S3. In step S3, use a tower crane to lift the main body of the external hanger layer by layer.

The present invention has at least one of the following advantages:

The present invention cantilever and fix the horizontal support beam on the cured corridor, and the two ends of the horizontal support beam respectively support two external hanger main bodies, that is, the external hanger main bodies are installed on both sides of the corridor, and the external hanger main body includes two layers. Among them, the height of the bottom protective structure is adapted to the height of the corridor on the current floor, and the height of the upper walkway slab of the upper protective structure is adapted to the height of the upper corridor to be constructed, so the upper protective structure is suitable for the corridor on the first floor to be constructed for construction. Since the horizontal support beam is fixed above the corridor, there is no need to reserve an I-shaped steel hole in the outer wall, which reduces the engineering volume of the outer wall blocking the hole and the construction difficulty of the outer wall waterproof. With the layer-by-layer construction of the corridor, the main body of the outer hanger It can also be lifted layer by layer. The entire external rack is only the height of the two-story corridor, which has good stability and low safety risks.

Brief description of the drawings

Fig. 1 is the front view of the external hanger for the construction of the high-rise building structure embodied in the sky corridor provided by an embodiment of the present invention;

Fig. 2 is a schematic structural view of the main body of the external hanger provided by an embodiment of the present invention;

Fig. 3 is a schematic diagram of installing an external pylon provided by an embodiment of the present invention;

Fig. 4 is a schematic diagram of an external hanger during corridor construction provided by an embodiment of the present invention;

Fig. 5 is a front view of a gallery U-shaped pipe clip provided by an embodiment of the present invention;

Fig. 6 is a schematic diagram of a pre-embedded U-shaped pipe clamp provided by an embodiment of the present invention;

Fig. 7 is a schematic diagram of installing a horizontal support beam provided by an embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

A single-blade spreader transmission device and a single-blade spreader proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and all use imprecise scales, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. In order to make the objects, features and advantages of the present invention more comprehensible, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. condition, so it has no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of the present invention without affecting the effect and purpose of the present invention. within the scope covered by the disclosed technical content.

Please refer to Figures 1 to 7, a high-rise building structure provided by an embodiment of the present invention embodies an external hanger for the construction of a corridor in the air, including: several horizontal support beams 100, and the two ends of each horizontal support beam 100 are horizontal Cantilevered on both sides of the cured cast-in-place concrete corridor on the current floor, fixed by the locking parts 200 pre-buried above the cast-in-place concrete corridor; several external hanger bodies 300 located on both sides of the corridor, Each of the hanger main bodies 300 is fixedly connected to ends of several horizontal support beams 100 . The horizontal support beam 100 can be made of I-beam.

Specifically, the main body 300 of the external hanger is a two-layer protective structure, wherein the bottom protective structure 310 is fixed to the horizontal support beam 100, including the bottom walkway plate 311 and several vertical support rods located on both sides of the bottom walkway plate 312, the upper protective structure 320 includes an upper walkway slab 321 and a number of vertical protective bars 322 located outside the upper walkway slab 321, the vertical support bars 312 are used to support the upper walkway slab 321, the upper walkway slab The height of 321 adapts to the height of the upper corridor to be constructed.

The external hanger structure provided in this embodiment is to hang and fix the horizontal support beam 100 on the cured corridor, and the two ends of the horizontal support beam 100 respectively support two external hanger main bodies 300, that is, the external hangers are installed on both sides of the corridor. The frame main body 300 and the external hanger main body include two layers, wherein the height of the bottom protective structure 310 is adapted to the height of the corridor on the current floor, and the height of the upper walkway plate 321 of the upper protective structure 320 is adapted to the height of the upper corridor to be constructed. Therefore, the upper protective structure 320 is suitable for construction of the upper corridor to be constructed. Since the horizontal support beam 100 is fixed above the corridor, there is no need to reserve an I-shaped steel hole in the outer wall, which reduces the engineering volume of the outer wall plugging the hole and the construction difficulty of the outer wall waterproof. With the layer-by-layer construction of the corridor, the external hanger The main body 300 can also be lifted layer by layer, and the entire external hanger is only the height of a two-story corridor, which has good stability and low safety risks.

Hanging lugs can be reserved on the main body 300 of the external hanger, and the hanging points can be set on the top of the main body 300 of the external hanger. There are no less than two hanging points, and the lifting lugs are custom-made connecting steel plates. Hanging points can also be arranged on the frameworks on both sides of the external hanger main body 300, in order to maintain the overall balance of the frame body, the hanging points should be no less than 4 points, symmetrically and evenly arranged.

In this embodiment, the bottom protection structure 310 also includes two bottom horizontal bars 313 parallel to each other and along the extension direction of the corridor, and several bottom horizontal bars 314 connecting the two bottom horizontal bars 313. The bottom walkway slab 311 is laid on several bottom horizontal longitudinal bars 314, and several vertical support bars 312 are arranged on two bottom horizontal bars 313; similarly, the upper protective structure 320 also includes two The upper horizontal bar 323 in the extension direction of the corridor, several upper horizontal longitudinal bars 324 connecting the two upper horizontal bar 323, the upper floor walkway board 321 is laid on several upper horizontal longitudinal bars 324, several vertical The protective rod 322 is arranged on the upper horizontal bar 323 on the outside; the upper horizontal bar 323 on the inner side connects several vertical support bars 312 inside the bottom walkway plate 311, and the upper horizontal bar 323 on the outer side connects the bottom layer Several vertical support rods 312 on the inner side of the corridor slab 311, the inner side and the outer side here are relative to the corridor, the side of the bottom corridor 311 close to the corridor is the inner side, and the side far away from the corridor is the outer side . In practical applications, the bottom walkway plate 311 and the upper walkway plate 321 can be patterned steel plates for anti-slip when people walk. The rods such as the longitudinal bar 314, the upper horizontal bar 323, and the upper horizontal bar 324 can be square tubes, and the specific size can be set according to the actual situation, such as 60 square tubes, 50 square tubes, etc.

Further, in the bottom protection structure 310, the vertical support rods 312 on both sides of the bottom walkway plate 311 are arranged oppositely, and a transverse tie rod 315 can be arranged between the two oppositely arranged vertical support rods 312, and the transverse tie rod The two ends of 315 are respectively connected to two vertical support rods 312. In addition, a diagonal stay rod 316 may be arranged between the transverse stay rod 315 and the upper protective structure 320, and one end of the diagonal stay rod 316 is connected to the transverse stay rod 315. The other end can be connected to the upper horizontal longitudinal bar 324 of the upper protective structure 320 . Therefore, the stability of the external hanger main body 300 can be enhanced through the arrangement.

Further, in the two external hanger main bodies 30 on both sides of the corridor, the vertical support rods 312 located on the inside of the bottom protection structure 310 are arranged oppositely, and a horizontal Tie rod 317. Thus, the overall stability of the external hanger main bodies 300 on both sides opposite to each other can be enhanced by arranging the horizontal tie rods 317.

In this embodiment, several vertical support rods 312 on the outer side may be connected to the bottom horizontal protection rod 318 , and several vertical protection rods 322 may be connected to the upper horizontal protection rod 325 . Thus, the protection of the pylon can be improved. Further, protective measures can be provided outside the facade of the external hanger, and several vertical support rods 312 located on the outside are connected to the bottom protective mesh 319, and several vertical protective rods 322 are connected to the upper protective mesh 326.

Further, the inner sides of the bottom walkway slab and the upper walkway slab are provided with flaps A, which are used to provide protection for workers during construction.

Generally, in order to facilitate disassembly and lifting, 2-5 horizontal support beams 100 can be used as a group, and the two ends of a group of horizontal support beams 100 are used to support two external hanger main bodies 300 arranged oppositely, forming a hanger together For the unit body, when the corridor is long, multiple hangers can be set to connect the unit body in sequence.

In this embodiment, the locking member 200 can be a U-shaped pipe clamp, as shown in Figures 5a to 5c, including a U-shaped sleeve 210, two bolts 220 and a steel pressure plate 230, the U-shaped sleeve 210 The two free ends are provided with internal threads that cooperate with the bolts, the steel plate 230 is provided with two through holes, the bottom of the U-shaped sleeve 210 is pre-embedded in concrete, and the horizontal support beam 100 is placed Between the two free ends of the U-shaped sleeve 210, the bolt 220 passes through the through hole of the steel pressing plate 230 and is threadedly connected with the free end of the U-shaped sleeve 210, and the steel pressing plate 230 uses Fasten the horizontal support beam 100 by pressing. Preferably, the U-shaped sleeve 210 is welded integrally with the main girder reinforcement of the corridor to form a joint weld. After the solidified strength of the concrete of the corridor after cast-in-place is greater than 75%, install the horizontal support beam 100 between the two free ends of the U-shaped sleeve 210 and lock it with the bolt 220 and the steel plate 230 .

The present invention also provides a construction method for the above-mentioned high-rise building structure embodying the construction of the external hanger for pouring the aerial corridor construction, comprising the following steps:

S1. Pre-embed the locking parts in the cast-in-place concrete of the corridor;

Preferably, the locking piece is a U-shaped pipe clip as shown in FIG. 5 , and the corridor after the pre-embedded locking piece is shown in FIG. 6 .

Preferably, after the curing strength of the concrete is greater than 75%, the horizontal support beams are installed, and the corridor after the installation of the horizontal support beams is shown in FIG. 7 .

The corridor after installing the main body of the external hanger is shown in Figure 3.

Perform cast-in-place construction on the upper floor corridor on the upper walkway slab of the main body of the external hanger, and repeat steps S1 to S3. In step S3, use a tower crane to lift the main body of the external hanger layer by layer. The corridor after construction is shown in Figure 4.

In summary, the present invention pre-embeds the locking parts in advance during the cast-in-place corridor, installs the horizontal support beam cantilevered, and installs the main body of the external hanger. The construction of the cast-in-place reinforced concrete structure of the air corridor of the building structure provides a safe, reliable and convenient construction method for the external hanger.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

In describing the present invention, it is to be understood that the terms "center", "height", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", The orientations or positional relationships indicated by "inner", "outer", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying Describes, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate in a specific orientation, and therefore should not be construed as limiting the invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

Although the content of the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as limiting the present invention. Various modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the above disclosure. Therefore, the protection scope of the present invention should be defined by the appended claims.

Claims

A high-rise building structure embodies an external hanger for the construction of an aerial corridor, which is characterized in that it includes:

A number of horizontal support beams, the two ends of each horizontal support beam cantilever horizontally on both sides of the cured cast-in-place concrete corridor on the current floor, and are fixed by locking parts pre-buried above the cast-in-place concrete corridor. fixed;

Several external hanger bodies located on both sides of the corridor, each of which is fixedly connected to the ends of several horizontal support beams;

The main body of the external hanger includes a two-layer protective structure, wherein the bottom protective structure is fixed to the horizontal support beam, including the bottom walkway slab and several vertical support rods located on both sides of the bottom walkway slab, and the upper protective structure includes the upper walkway slab and several vertical protective rods located outside the upper walkway slab, the vertical support rods are used to support the upper walkway slab, the height of the upper walkway slab is the same as the height of the upper corridor to be constructed adapt.
The high-rise building structure as claimed in claim 1 is characterized in that, the bottom protective structure also includes two bottom horizontal bars parallel to each other and along the extension direction of the corridor, Several bottom horizontal longitudinal bars connecting the two bottom horizontal bars, the bottom walkway plate is laid on several bottom horizontal longitudinal bars, and several vertical support bars are arranged on the two bottom horizontal bars;

The upper protective structure also includes two upper horizontal bars parallel to each other and along the extending direction of the corridor, several upper horizontal longitudinal bars connecting the two upper horizontal bars, and the upper layer walkway boards are laid on several upper layer On the horizontal longitudinal bar, several vertical protective bars are arranged on the outer upper level horizontal bar;

Each upper level horizontal bar connects several vertical support bars on one side of the bottom walkway slab.
The high-rise building structure as claimed in claim 1 is characterized in that the external hangers for the construction of pouring corridors in the sky are characterized in that, some vertical support rods located on the outside are connected with bottom level protection rods, and some vertical protection rods are connected with upper level protection rods. pole.
The high-rise building structure according to claim 1 is characterized in that a plurality of vertical support rods located on the outside are connected to the bottom protection mesh, and a plurality of vertical protection rods are connected to the upper protection mesh.
The high-rise building structure according to claim 1 is characterized in that, in the bottom protection structure, the vertical support rods on both sides of the bottom walkway plate are relatively arranged, and the oppositely arranged A transverse tie rod is connected between the two vertical support rods.
The high-rise building structure according to claim 5 is characterized in that a diagonal tie rod is connected between the horizontal tie rod and the upper protective structure.
The high-rise building structure as claimed in claim 1 embodying the external hanger for pouring the construction of the corridor in the air, characterized in that, in the two external hanger main bodies on both sides of the corridor, the vertical support located on the inner side of the bottom protection structure The rods are arranged oppositely, and a horizontal tie rod is connected between the two vertical support rods arranged oppositely.
The high-rise building structure according to claim 1 is characterized in that, the inside of the bottom walkway slab and the upper walkway slab are provided with flaps.
The high-rise building structure as claimed in claim 1 is characterized in that the external hanger for pouring aerial corridor construction is characterized in that the locking member is a U-shaped pipe clamp, including a U-shaped sleeve, two bolts and a steel plate. The two free ends of the U-shaped sleeve are provided with internal threads that cooperate with the bolts, and the steel pressure plate is provided with two through holes. The bottom of the U-shaped sleeve is pre-embedded in concrete, and the horizontal The support beam is placed between the two free ends of the U-shaped sleeve, and the bolts pass through the through holes of the steel platen and are screwed to the free ends of the U-shaped sleeve, and the steel platen is used for pressing Fasten the horizontal support beams.
A construction method for an external hanger for the construction of a high-rise building structure embodied in a poured aerial corridor as claimed in any one of claims 1-9, characterized in that it comprises the following steps:

S1. Pre-embed the locking parts in the cast-in-place concrete of the corridor;

S2. After the concrete is solidified to a certain extent, place several horizontal support beams longitudinally on the corridor and make both ends of the horizontal cantilever on both sides of the corridor, and use the locking parts to fix the horizontal support beams;

S3. On both sides of the corridor, the main body of the external hanger is fixedly connected to the end of the horizontal support beam;

Perform cast-in-place construction on the upper floor corridor on the upper walkway slab of the main body of the external hanger, and repeat steps S1 to S3. In step S3, use a tower crane to lift the main body of the external hanger layer by layer.