CN220014396U - Cantilever structure template scaffold support frame - Google Patents

Abstract

The utility model discloses a cantilever structure template scaffold support frame, which comprises a main body structure, wherein an anchoring section is arranged on the upper side of a right angle position of the main body structure, the front end of the anchoring section is provided with a pull-up lower support section, one half of the pull-up lower support section is positioned on the side of the main body structure, the other half of the pull-up lower support section is positioned on the side upper side of the main body structure, and a cantilever section is arranged at one end of the middle part of the pull-up lower support section; the whole cantilever system of this device supports and adopts the mode of pull-up and pull-down to prop, will cantilever the moment point forward of support body, the effectual atress form that changes cantilever support system to increased the length of encorbelmenting to a great extent, reduced stock end length, reduced the influence to floor template support system and follow-up engineering construction, strengthened the adaptability of the circumstances such as large-span cantilever, need bear dead weight and great construction load, realized the cost reduction of project and increased efficiency, have fine application prospect and popularization potential.

Description

Cantilever structure template scaffold support frame

Technical Field

The utility model relates to the technical field of building construction equipment, in particular to a cantilever structure template scaffold support frame.

Background

With the development of the building industry, more and more building designs will design the building facade with uneven shapes, especially the roof is provided with the overhanging roof. This brings a lot of inconveniences to the erection of the formwork and the support system, the erection of the outer scaffold, etc. during the construction of the main body.

If a supporting system is erected from the bottom layer for supporting, when the height of the overhanging structure exceeds three layers, the overall frame body is generally large in height and width, the stability of the overall frame body cannot be guaranteed, and the cost is high. If the traditional I-steel is adopted for overhanging, in order to ensure the safety of the frame body, the ratio of the overhanging length to the anchoring length of the I-steel is not more than 1:1.25, when the length of the cantilever structure is 3 meters, the anchoring length is more than 3.75 meters, which leads to the complicated I-steel of the whole floor, seriously influences the erection of an inner scaffold and the construction of a subsequent secondary structure and decoration, and the bearing capacity of the I-steel is also challenged greatly due to the longer cantilever length, thus leaving a huge potential safety hazard for a formwork support system.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a cantilever structure template scaffold support frame.

The aim of the utility model is achieved by the following technical scheme: the utility model provides a structure template scaffold frame encorbelments, includes major structure, its characterized in that: an anchoring section is arranged on the upper side of the right angle of the main structure, a pull-up lower supporting section is arranged at the front end of the anchoring section, one half of the pull-up lower supporting section is located on the side of the main structure, the other half of the pull-up lower supporting section is located on the side above the main structure, and an overhanging section is arranged at one end of the middle of the pull-up lower supporting section.

Preferably, the overhanging section is arranged as an I-steel.

Preferably, the upper pull lower support section is arranged in a triangle shape and comprises an upper pull lower support main stress section, a bottom diagonal support, a diagonal support tower, a bottom vertical support and an upper pull diagonal steel rope; the upper-pulling lower-supporting main stress section is arranged as an I-shaped steel, one end of the upper-pulling lower-supporting main stress section is connected with the overhanging section, the lower vertical support is arranged at one end of the upper-pulling lower-supporting main stress section, and the lower part of the upper-pulling lower-supporting main stress section of the bottom vertical support is connected with the main structure; a bottom diagonal bracing is connected between the bottom of the bottom vertical bracing and one end of the main stress section of the upper pull lower bracing; a cable-stayed tower is arranged above the bottom vertical support, and a pull-up cable-stayed steel rope is connected between the top of the cable-stayed tower and one end of the main stress section of the pull-up lower support.

Preferably, the top of the bottom vertical support and one end of the main stress section of the pull-up lower support are fixedly provided with steel rope fixing pieces, and the pull-up inclined steel rope is connected with the two steel rope fixing pieces.

Preferably, the bottom stiffener is arranged between the middle part of the main stress section of the upper pull lower support and the bottom diagonal brace; and a cable-stayed tower stiffening support is arranged between the upper side of the person who pulls up the main stress section of the lower support and the bottom vertical support.

Preferably, the anchoring section comprises an anchoring main stress section, a pull ring, an anchoring member and a pull-down cable-stayed steel rope; the anchoring main stress section is arranged as an I-shaped steel, one end of the anchoring main stress section is connected with the upper-pulling lower-supporting main stress section, two ends of the anchoring main stress section are fixed on a main structure through anchoring members, pull rings are arranged at the anchoring members, and pull-down inclined-pull steel ropes are connected between the pull rings and the steel rope fixing pieces.

Preferably, the overhanging section, the upper-pull lower-support main stress section and the anchoring main stress section are arranged as a complete I-steel.

The utility model has the following advantages: the whole cantilever system of this device supports and adopts the mode of pull-up and pull-down to prop, will cantilever the moment point forward of support body, the effectual atress form that changes cantilever support system to increased the length of encorbelmenting to a great extent, reduced stock end length, reduced the influence to floor template support system and follow-up engineering construction, strengthened the adaptability of the circumstances such as large-span cantilever, need bear dead weight and great construction load, realized the cost reduction of project and increased efficiency, have fine application prospect and popularization potential.

Drawings

Fig. 1 is a schematic structural diagram of the present utility model.

Fig. 2 is a schematic structural diagram of the second embodiment of the present utility model.

In the figure, the cantilever section (1), the upper-pulling lower-supporting section (2), the anchoring section (3), the main body structure (4), the upper-pulling lower-supporting main stress section (2-1), the bottom diagonal bracing (2-2), the cable-stayed tower (2-3), the bottom vertical bracing (2-4), the bottom stiffener (2-5), the upper-pulling cable-stayed steel rope (2-6), the cable-stayed tower stiffening support (2-7), the steel rope fixing piece (2-8), the anchoring main stress section (3-1), the pull ring (3-2), the anchoring component (3-3) and the lower-pulling cable-stayed steel rope (3-4).

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The supporting frame of the cantilever structure template scaffold comprises a main structure 4, wherein an anchoring section 3 is arranged on the upper side of a right angle part of the main structure 4, a pull-up lower supporting section 2 is arranged at the front end of the anchoring section 3, one half of the pull-up lower supporting section 2 is located on the side of the main structure 4, the other half of the pull-up lower supporting section 2 is located on the side above the main structure 4, and a cantilever section 1 is arranged at one end of the middle part of the pull-up lower supporting section 2.

In the device, the upper pull lower support section 2 is arranged into a triangle, and comprises an upper pull lower support main stress section 2-1, a bottom diagonal support 2-2, a diagonal tower 2-3, a bottom vertical support 2-4 and an upper pull diagonal steel rope 2-6; the anchoring section 3 comprises an anchoring main stress section 3-1, a pull ring 3-2, an anchoring member 3-3 and a pull-down cable-stayed steel rope 3-4, wherein the overhanging section 1, the pull-up lower support main stress section 2-1 and the anchoring main stress section 3-1 are set to be a complete I-steel, the I-steel model is 18#, the specific model is adjusted according to the overhanging length and the stress condition, and the ratio of the length of the overhanging section 1 to the length of the pull-up lower support main stress section 2-1 to the length of the anchoring main stress section 3-1 is not less than 1:1.25. the anchoring main stress section 3-1 of the whole I-steel is partially arranged on the main body structure 4, and two ends of the anchoring main stress section are fixed on the main body structure 4 through the anchoring members 3-3. Then, the bottom of the main stress section 2-1 of the upper pull-down support is provided with a bottom vertical support 2-4, the upper pull-down support main stress section 2-1 at the same position is provided with a cable-stayed tower 2-3, and the cable-stayed tower 2-3 and the bottom vertical support 2-4 are both arranged as 18# I-steel.

In order to improve the supporting strength, a bottom diagonal brace 2-2 of 18# I-steel is connected and arranged between the connection part of the main stress section 2-1 of the upper pull-down support and the overhanging section 1 at one end of the bottom vertical brace 2-4, and a bottom stiffening rod 2-5 of the 18# I-steel is further arranged on the bottom diagonal brace 2-2 and connected to the middle part of the main stress section 2-1 of the upper pull-down support so as to improve the supporting strength. The connecting mode can be welded or riveted, and the included angle between the bottom inclined strut 2-2 and the main stress section 2-1 of the upper pull lower strut is preferably 45-30 degrees, and the minimum angle is not less than 30 degrees. While the bottom stiffener 2-5 needs to be placed vertically up-pulling the lower brace main stress section 2-1.

In order to prevent deformation, two sides of the cable-stayed tower 2-3 are provided with deformation-preventing cable-stayed tower stiffening supports 2-7, meanwhile, in order to improve the supporting strength, a pull-up cable-stayed steel rope 2-6 is arranged between the top of the cable-stayed tower 2-3 and one end of the main stress section 2-1 of the pull-up and pull-down support, and a pull-down cable-stayed steel rope 3-4 is arranged between the top of the cable-stayed tower 2-3 and one end of the main stress section 3-1 of the anchor. It should be noted that the length of the cable-stayed towers 2-3 can be adjusted according to the overhanging length. But the minimum length is required to meet that the included angle between the 2-6 pull-up cable-stayed steel rope and the 2-1 main stress section of the pull-up lower support is not less than 30 degrees; the length of the main stress section 2-4 of the upper pull lower support is determined according to the height of the upper pull lower support, the longest length of the main stress section 2-4 of the upper pull lower support is the height of the beam plus 100mmm, and the upper opening of the bottom diagonal support 2-2 is ensured to be positioned above the elevation of the bottom of the beam.

The bottom stiffening rod 2-5 is arranged in the middle of the main stress section 2-1 of the upper pull lower support and is used for reinforcing the main stress section 2-1 of the upper pull lower support and the bottom diagonal support 2-2, so that the deformation of the component when the component is stressed greatly is prevented, and the stress of the component is influenced; a steel rope anti-sliding component steel rope fixing piece 2-8 made of steel bars with the diameter not smaller than 22mm is welded at the interface position of the bottom diagonal brace 2-2 and the main stress section 2-1 of the upper pull lower support and the top of the diagonal tower 2-3 and is used for sliding when the steel rope is tensioned and stressed excessively, so that the stress of the component is affected; the upper part of the upper pulling-out steel rope 2-6 and the lower pulling-out steel rope 3-4 are the upper pulling-out components of the components, the steel wire rope with the specification and model number not less than 6 multiplied by 37+1 is in a hanging state when being put into use, and the included angles between the upper pulling-out steel rope 2-6 and the upper pulling-out lower supporting main stress section 2-1, between the lower pulling-out steel rope 3-4 and the anchoring main stress section 3-1 are preferably 45 degrees to 30 degrees, and the minimum included angle is not less than 30 degrees.

The end part of the anchoring main stress section 3-1 is provided with a U-shaped pull ring 3-2 made of primary steel bars with the diameter not smaller than 22mm, and the U-shaped pull ring is fixed in a welding mode and is used for fixing and tensioning the pull-down inclined steel ropes 3-4; the anchoring member 3-3 is an anchoring member made of primary reinforcing steel bars with the diameter not smaller than 22mm, 2 channels and 1 channel are respectively arranged on the inner sides of the pull ring 3-2 and the stiffening support 2-7 of the cable-stayed tower, the anchoring member 3-3 can firmly connect and fix the anchoring main stress section 3-1 with concrete in a pre-embedded or reserved hole later installation mode, the anchoring main stress section 3-3 at the end part position of the anchoring main stress section 3-1 is mainly used for transmitting the tensile force born by the member to the main structure 4, and the anchoring member 3-3 at the joint position of the anchoring main stress section 3-1 and the cable-stayed tower 2-3 is mainly used for fixing the member and preventing the member from moving.

After the cantilever structure template scaffold support structure is installed, according to the arrangement requirements of the template scaffold and the outer scaffold, material backing plates such as channel steel, I-steel and the like are paved on the cantilever structure template scaffold support structure and fixed in a mode of iron wires, steel bars and the like, and then the scaffold is erected.

The device is characterized in that the upper part is inclined and supported by the lower part, so that a complete stress system is formed by the upper part inclined and supported and the overhanging I-steel, bending moment points of the overhanging frame body are moved forwards to the positions of 2-8 steel rope fixing pieces of the main stress section of the upper part inclined and supported, the load of the overhanging structure is unloaded to a concrete structure through a supporting structure and an inclined and supported structure, and the bending moment of the main stress section of the upper part inclined and supported is reduced, thereby greatly increasing the overhanging length, reducing the length of an anchoring section extending into a building layer, and effectively solving the problems that the construction cost of the existing high-altitude large-span overhanging support frame is high, and the construction and the follow-up construction of the formwork support system in the building are greatly interfered.

The device comprises the following specific operation steps:

1. according to the overhanging length, the beam plate size and the like of the overhanging structure, the beam plate structure condition of the supporting structure installation layer, the structural model is adopted for preliminary design, the material requirements and the sizes of the components are calculated and rechecked by adjusting the angles of the inclined strut, the upward-pulling structure and the upward-pulling downward-pulling section, an optimal scheme is selected, and the processing and the reservation and the pre-embedding of the anchoring components are carried out.

2. The cantilever structure template scaffold support structure is arranged at a preset position, the support structure and the beam plate are connected into an organic whole through the anchoring member 3-3, and the bottom vertical support 2-4, the anchoring main stress section 3-1 and the beam plate are tightly abutted.

3. The up-pulling and inclined-pulling steel ropes 2-6 and the down-pulling and inclined-pulling steel ropes 3-4 are installed and locked, so that the steel wire is in a hanging state, and the steel wire cannot loosen and displace under the stress.

4. According to the scheme design conditions of the template scaffold and the outer scaffold of the overhanging part, material backing plates such as channel steel, I-steel and the like are paved on the supporting structure of the template scaffold of the overhanging structure and fixed in a mode of iron wires, steel bars and the like.

5. According to the scheme, a template scaffold and an outer scaffold are erected on the base plate, the overhanging part of the template scaffold is connected with the inner scaffold into a unified whole, and the outer scaffold is strictly forbidden to be connected with the template scaffold.

6. Before setting up the scaffold and before pouring concrete after finishing setting up, special acceptance should be carried out, and the scaffold can be put into use after qualified experience. When concrete is poured, the part of the floor slab which is not overhanging should be poured firstly, then the part of the floor slab which is overhanging should be poured so as to reduce the overhanging stress brought to the formwork support system by the weight of the overhanging part of the concrete, meanwhile, a special person should be dispatched to observe whether the structure has deformation and looseness, the construction should be stopped immediately when the structure is problematic, and the follow-up construction can be performed after the construction is processed and re-accepted.

7. If the steel cable is further used for supporting an outer scaffold, after the template and the supporting system are removed, corresponding hard protection is carried out in time, and after acceptance, the pull-down inclined steel cable 3-4 can be removed according to the situation, so that the influence on the construction in the floor is reduced.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (7)

1. The utility model provides a structure template scaffold frame encorbelments, includes major structure (4), its characterized in that: an anchoring section (3) is arranged on the upper side of the right angle of the main body structure (4), a pull-up lower supporting section (2) is arranged at the front end of the anchoring section (3), one half of the pull-up lower supporting section (2) is located on the side of the main body structure (4), the other half of the pull-up lower supporting section is located on the side upper side of the main body structure (4), and an overhanging section (1) is arranged at one end of the middle of the pull-up lower supporting section (2).

2. The cantilever structure template scaffold support frame according to claim 1, wherein: the cantilever section (1) is arranged as an I-shaped steel.

3. The cantilever structure template scaffold support frame according to claim 1, wherein: the upper-pulling lower-supporting section (2) is arranged into a triangle and comprises an upper-pulling lower-supporting main stress section (2-1), a bottom diagonal support (2-2), a diagonal tower (2-3), a bottom vertical support (2-4) and an upper-pulling diagonal steel rope (2-6); the upper-pulling lower-supporting main stress section (2-1) is arranged as an I-shaped steel, one end of the upper-pulling lower-supporting main stress section (2-1) is connected with the overhanging section (1), one end of the upper-pulling lower-supporting main stress section (2-1) is vertically provided with the bottom vertical support (2-4), and the lower part of the upper-pulling lower-supporting main stress section (2-1) of the bottom vertical support (2-4) is connected with the main structure (4); a bottom diagonal bracing (2-2) is arranged between the bottom of the bottom vertical bracing (2-4) and one end of the main stress section (2-1) of the upper pull lower bracing in a connecting way; a cable-stayed tower (2-3) is arranged above a bottom vertical support (2-4), and a pull-up cable-stayed steel rope (2-6) is connected between the top of the cable-stayed tower (2-3) and one end of a main stress section (2-1) of the pull-up lower support.

4. The cantilever structure template scaffold support frame according to claim 2, wherein: a steel rope fixing piece (2-8) is fixedly arranged at the top of the bottom vertical support (2-4) and one end of the main stress section (2-1) of the upper pull lower support, and the upper pull inclined pull steel rope (2-6) is connected and arranged on the two steel rope fixing pieces (2-8).

5. A cantilever structure formwork scaffold support frame as claimed in claim 3, wherein: the lower stiffener (2-5) is arranged between the middle part of the main stress section (2-1) of the upper pull lower brace and the lower diagonal brace (2-2); a cable-stayed tower stiffening support (2-7) is arranged between the upper side of the person who pulls up the main stress section (2-1) of the lower support and the bottom vertical support (2-4).

6. The cantilever structure template scaffold support frame according to claim 1, wherein: the anchoring section (3) comprises an anchoring main stress section (3-1), a pull ring (3-2), an anchoring member (3-3) and a pull-down and pull-up cable (3-4); the anchoring main stress section (3-1) is arranged as an I-shaped steel, one end of the I-shaped steel is connected with the upper-pulling lower-supporting main stress section (2-1), two ends of the anchoring main stress section (3-1) are fixed on the main structure (4) through the anchoring member (3-3), the pull ring (3-2) is arranged at the anchoring member (3-3), and the pull-down inclined-pull steel rope (3-4) is connected between the pull ring (3-2) and the steel rope fixing piece (2-8).

7. The cantilever structure template scaffold support frame according to claim 1, wherein: the cantilever section (1), the upper-pull lower-support main stress section (2-1) and the anchoring main stress section (3-1) are arranged as a complete I-steel.