CN107152160A - A kind of shuttering supporting builder's jack operation platform erection method - Google Patents

Abstract

The invention provides a method for erecting a construction platform of a formwork-supported cantilevered scaffold, which belongs to the technical field of construction engineering and is used for erecting a scaffold outside a shear wall. The method for erecting a construction platform of a formwork-supported cantilevered scaffold includes the step of installing a cantilever support , the steps of setting rooting points on the cantilever support, the steps of installing scaffolding, the steps of installing wall parts, the steps of installing formwork jacking, the steps of installing diagonal braces and the steps of installing protective railings. This method is easy to operate, fast in erection speed, and greatly improves The construction efficiency reduces the construction cost. The structure of the scaffold is stable and reliable. The suspension setting of the steel wire rope and the setting of the protective railing greatly improve the safety performance of the scaffold. Moreover, the scaffold is easy to disassemble and assemble, and the materials can be reused, saving costs.

Description

A method for erecting a formwork-supported cantilevered scaffolding construction platform

technical field

The invention relates to the technical field of construction engineering, in particular to a method for erecting a formwork-supported cantilevered scaffolding construction platform.

Background technique

Generally, in the construction of super high-rise buildings, the higher the floor of the building, the more complex the construction environment and the greater the difficulty of construction. In the structural construction and exterior decoration construction, construction personnel often need to build scaffolding outside the building for construction. However, the existing scaffold erection method is inconvenient to operate, low in erection efficiency and poor in safety

Contents of the invention

The object of the embodiments of the present invention is to provide a method for erecting a construction platform of a formwork-supported cantilevered scaffold, which can better improve the above-mentioned problems.

The embodiment of the present invention is realized like this:

Embodiments of the present invention provide a method for erecting a formwork-supported cantilevered scaffolding construction platform, which is used to erect a scaffold on the outside of a shear wall, where a wooden box and a PVC pipe are pre-embedded on the shear wall, and the wooden box is provided with Through holes, the formwork supports the cantilevered scaffolding construction platform and the erection method includes the following steps:

Install the cantilever support: At the position of the scaffold to be installed, pass the cantilever support through the through hole of the wooden box into the shear wall, the part of the cantilever support located on the outside of the shear wall is the first part, The first part is suspended in the air, and the part of the cantilever support located on the inner side of the shear wall is the second part, and the second part is fixed on the steel bar of the beam plate;

Set up rooting points on the cantilever support: set positioning reinforcement on the upper surface of the first part of the suspension support as the rooting point of the scaffold, and the distance between two adjacent positioning reinforcements is 1000-1050mm;

Scaffold installation: install a vertical pole at the positioning steel bar, fix the longitudinal sweeping rod and the horizontal sweeping rod to the vertical rod respectively, and the distance between the longitudinal sweeping rod and the horizontal sweeping rod and the cantilevered support is: 180-200mm, the vertical horizontal bar and the horizontal horizontal bar are fixed on the vertical bar to form a scaffold, and a scaffold board is arranged at the lower end of the scaffold, and the scaffold has a horizontal direction, a longitudinal direction and a vertical direction;

Install the wall fittings: set a connecting piece on the inside and outside of the shear wall near the PVC pipe, pass one end of the connecting wall piece through the PVC pipe and connect with the two connecting pieces, the connecting wall The other end of the piece is located on the outside of the shear wall and connected to the scaffold. In the vertical direction, the upper and lower ends of the scaffold are each provided with a wall piece. In the longitudinal direction, a piece is provided every three spans. even wall pieces;

Install formwork jacking: in the transverse direction of the scaffold, the vertical pole close to the shear wall is the inner pole, and the formwork jacking is set on the top of the inner pole for supporting the formwork;

Install the diagonal brace: the wall connecting piece at the upper end of the scaffold is an extended wall connecting piece, the diagonal brace is arranged between the lengthening connecting wall piece and the cantilever support, one end of the diagonal brace is connected to the cantilever The part of the supporting member abutting against and close to the cantilever supporting member is connected to the scaffold, and the other end is connected to the end of the extended wall connecting member away from the shear wall;

Install the protective railing: set the first protective railing at the upper side of the lengthened wall part 200-220mm from the outer side of the cantilever beam to be poured, and set the second protective railing at the end of the extended wall part away from the shear wall.

Optionally, the end of the cantilever support away from the shear wall is also suspended by a first steel wire rope, one end of the first steel wire is connected to the end of the first part away from the shear wall, and the other end is anchored to Shear walls and bolted connections above the cantilevered supports.

Optionally, the end of the lengthened connecting wall piece away from the shear wall is also suspended by a second steel wire rope, one end of the second steel wire rope is connected to the end of the lengthened connecting wall piece away from the shear wall, and the other end is It is connected with bolts anchored in the shear wall and located above the extension wall piece.

Optionally, both the first steel wire rope and the second steel wire rope include a main steel wire rope and an auxiliary steel wire rope, and the diameters of the main steel wire rope and the auxiliary steel wire rope are both φ20mm.

Optionally, a wedge for wedging the overhanging support is provided at the through hole of the wooden box.

Optionally, a steel bar pre-embedded ring is provided on the steel bar of the beam and slab corresponding to the position of the scaffolding, and the second part passes through the steel bar pre-embedded ring.

Optionally, the longitudinal spacing of the vertical poles of the scaffold is 1200mm, and the step distance of the horizontal poles of the scaffold is 1500-1800mm.

Optionally, the vertical poles, longitudinal sweeping poles, horizontal sweeping poles, wall parts and diagonal braces are all made of φ48×3.5 steel pipes, and the cantilevered supports are made of 20# I-beam. The PVC pipe is made of DN50PVC pipe.

Optionally, the length of the first part is 1200-1300mm, and the length of the second part is 1800-1900mm.

Optionally, the positioning reinforcement is made of C20 reinforcement and has a length of 100-110mm.

Embodiments of the present invention have the following beneficial effects:

The formwork-supported cantilevered scaffolding construction platform erection method provided by the embodiment of the present invention is easy to operate and fast in erection speed, which greatly improves the construction efficiency and reduces the construction cost. The safety performance of the scaffold is greatly improved, and the scaffold is convenient for disassembly and assembly, and materials can be reused, thereby saving costs.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore do not It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

Fig. 1 is a schematic structural view of a formwork-supported cantilevered scaffold construction platform provided by an embodiment of the present invention.

Icons: 101-shear wall; 102-wooden box; 103-PVC pipe; 201-cantilever support; 2011-first part; 2012-second part; 202-wedge; 203-first wire rope; 204-bolt ;205-positioning reinforcement;206-scaffolding;2061-pole;2062-horizontal sweeping rod;2063-longitudinal sweeping rod; ; 210-li pole; 211-formwork jack; 212-diagonal brace; 213-the first protective railing; 214-the second protective railing.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is some embodiments of the present invention, but not all of them. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present invention, it should be noted that the orientations or The positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the invention is used, or the orientation or positional relationship that is commonly understood by those skilled in the art, or the orientation or positional relationship that the product of the invention uses Orientation or positional relationship that is conventionally placed is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be interpreted as Limitations on the Invention. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation", "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of 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.

Implementation

Referring to FIG. 1 , an embodiment of the present invention provides a method for erecting a formwork-supported cantilevered scaffolding construction platform, which is used for erecting a scaffold 206 outside a shear wall 101 .

It should be noted that when the structure is constructed to a certain position, the wooden box 102 or DN50PVC pipe 103 is pre-embedded in the shear wall 101, and a through hole is reserved on the wooden box 102; The pre-embedded ring of φ16 steel bar is preset on the steel bar.

The scaffold 206 to be erected has a transverse direction, a longitudinal direction and a vertical direction.

The formwork supports the cantilevered scaffolding 206 platform erection method including the following steps:

Install the cantilever support 201: At the position of the scaffold 206 to be installed, the cantilever support 201 is penetrated into the shear wall 101 from the through hole of the wooden box 102, and the cantilever support 201 is located on the outside of the shear wall 101 Part is the first part 2011, the first part 2011 is suspended, the part of the cantilever support 201 located inside the shear wall 101 is the second part 2012, and the second part 2012 passes through the pre-embedded ring of the steel bar and is fixed on the steel bar of the beam and slab.

The length dimension of the first part 2011 is 1200-1300mm, preferably 1200mm; the length dimension of the second part 2012 is 1800-1900mm, preferably 1800mm.

Cantilever supports 201 are arranged in parallel in the longitudinal direction with many, and the distance between adjacent two cantilever supports 201 is determined according to the vertical distance of the vertical pole 2061 of the scaffold 206 designed.

In order to prevent the cantilevered support 201 from sliding in the through hole, a wedge 202 can be arranged at the through hole, and the wedge 202 is inserted into the gap between the cantilevered support 201 and the wooden box 102 .

In order to improve the safety of the cantilever support 201, the first wire rope 203 can be used to suspend at the end of the cantilever support 201 away from the shear wall 101. One end is connected, and the other end is connected with a bolt 204 anchored to the shear wall 101 and located above the cantilever support 201 .

The first wire rope 203 includes a main wire rope and an auxiliary wire rope, which can greatly improve the safety of suspension.

In this embodiment, the cantilever support 201 can be made of 20# I-beam, the wedge 202 can be made of wood material, the bolt 204 anchored on the shear wall 101 can be M24 high-strength bolt 204, and the main wire rope Both the diameter and the auxiliary steel wire rope are φ20mm steel wire rope.

Rooting points are set on the cantilever support 201: on the upper surface of the first part 2011 of the cantilever support 201, positioning steel bars 205 are set as the rooting points of the scaffold 206, and the distance between two adjacent positioning steel bars 205 is 1000-1050mm.

In this embodiment, the positioning steel bar 205 is made of C20 steel bar, of course, it can also be made of steel pipe, and the length of the positioning steel bar 205 is 100-110mm. Preferably, the length of the positioning steel bar 205 is 100 mm, and the distance between two adjacent positioning steel bars 205 is about 1050 mm.

Install the scaffolding 206: set the vertical rod 2061 at the positioning steel bar 205, fix the vertical sweeping rod 2063 and the horizontal sweeping rod 2062 to the vertical rod 2061 respectively, and the distance between the vertical sweeping rod 2063, the horizontal sweeping rod 2062 and the cantilever support 201 is 180 -200mm, the vertical horizontal bar and the horizontal horizontal bar are fixed on the vertical bar 2061 to form a scaffold 206, and a scaffold board is arranged at the lower end of the scaffold 206.

In this embodiment, the vertical distance of the vertical rod 2061 is about 1200mm, the horizontal distance of the vertical rod 2061 is about 1050mm, the step distance between the vertical horizontal rod and the horizontal horizontal rod is 1500-1800mm, the vertical sweeping rod 2063 and the horizontal sweeping rod 2062 The distance between the cantilevered supports 201 is about 200mm.

In this embodiment, the vertical bar 2061, the longitudinal sweeping bar 2063, the horizontal sweeping bar 2062, the longitudinal horizontal bar and the horizontal horizontal bar can all be made of φ48×3.5 steel pipes.

Install the connecting wall piece 208: a connecting piece 207 is respectively set at the position close to the PVC pipe 103 inside and outside the shear wall 101. One end passes through the PVC pipe 103 and is connected with two connectors 207, and the other end of the wall member 208 is positioned at the outside of the shear wall 101 and is connected with the scaffold 206. In the vertical direction, the upper end and the lower end of the scaffold 206 respectively A wall connecting piece 208 is provided, and a wall connecting piece 208 is provided every three spans in the longitudinal direction.

The wall part 208 at the upper end of the scaffold 206 is an extended wall part 2081. In order to improve the stability and safety of the extended wall part 2081, the second steel wire rope 209 can be passed at the end of the extended wall part 2081 away from the shear wall 101. For suspension, one end of the second steel wire rope 209 is connected to the end of the extension wall 2081 away from the shear wall 101 , and the other end is connected to the bolt 204 anchored to the shear wall 101 and located above the extension wall 2081 .

The second wire rope 209 also includes a main wire rope and an auxiliary wire rope, which can greatly improve the safety of suspension.

In this embodiment, both the wall connecting piece 208 and the connecting piece 207 can be made of φ48×3.5 steel pipe.

Install template jacking 211: in the transverse direction of scaffolding 206, the vertical pole 2061 close to the shear wall 101 is the inner vertical pole 210, and the inner vertical pole 210 is about 200mm away from the outer wall of the shear wall 101, and the inner vertical pole 210 A formwork jack 211 is provided on the top for supporting the formwork.

Install the diagonal brace 212: the wall connecting piece 208 at the upper end of the scaffold 206 is an extended wall connecting piece 2081, the diagonal brace 212 is arranged between the lengthening connecting wall piece 2081 and the cantilever support 201, and one end of the diagonal brace 212 is connected to the The part of the cantilever support 201 abutting against and close to the cantilever support 201 is connected to the scaffold 206 , and the other end is connected to the end of the extended wall connecting member 2081 away from the shear wall 101 .

In this embodiment, the extended wall connecting piece 2081 is used as the semi-permanent wall connecting piece 208 for easy disassembly.

Install the protective railing: set the first protective railing 213 on the upper side of the extended wall part 2081 at a distance of 200-220 mm from the outer side of the cantilever beam to be poured, preferably at a distance of 200 mm from the outer side of the cantilever beam to be poured. Set the first protective railing 213 , the height dimension of the first protective railing 213 is 1200mm, and the second protective railing 214 is set at the end of the extended connecting wall piece 2081 away from the shear wall 101, and the distance between the second protective railing 214 and the lengthening connecting wall piece 2081 is far away from the shear wall 101 The size of one end is 200mm.

The second protective railing 214 is used as a semi-permanent protective railing, which is convenient for disassembly.

The formwork supported cantilevered scaffolding construction platform erecting method provided by the embodiment of the present invention is easy to operate, fast in erection speed, greatly improves the construction efficiency, and reduces the construction cost. The structure of the scaffold 206 is stable and reliable. The setting greatly improves the safety performance of the scaffold 206, and the scaffold 206 is easy to disassemble, and the materials can be reused, which saves the cost.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. a kind of shuttering supporting builder's jack operation platform erection method, for setting up scaffold on the outside of shear wall, its It is characterised by, tub and pvc pipe are embedded with shear wall, and the tub is provided with through hole, and this shuttering supporting builder's jack is applied Work Platforms Construct Method of Super comprises the following steps：

Installation is encorbelmented support member：At scaffold position to be installed, the support member that will encorbelment penetrates shear wall from the through hole of tub, The part in the outside positioned at shear wall of the support member of encorbelmenting is Part I, and the Part I is hanging, the branch of encorbelmenting The part of the inner side positioned at shear wall of support member is Part II, and the Part II is fixed on beam reinforced steel bar；

Encorbelment to set on support member and take root a little：In the upper surface of the Part I of the support member of encorbelmenting, spacer bar conduct is set Scaffold is taken root a little, and the spacing of adjacent two spacer bars is 1000-1050mm；

Scaffold is installed：Vertical rod is set at the spacer bar, and will longitudinally sweep the floor bar and bar of laterally sweeping the floor are individually fixed in institute State vertical rod, the spacing of bar is swept the floor in the longitudinal direction and the transverse direction is swept the floor bar and the support member of encorbelmenting is 180-200mm, will longitudinal direction Horizon bar and transverse horizontal bar are fixed on the vertical rod and constitute scaffold, and scaffold board is set in the lower end of the scaffold, described Scaffold has horizontal direction, longitudinal direction and vertical direction；

Wall-connecting piece is installed：A piece connector is set respectively at the position of pvc pipe in the interior outside of shear wall, by the even wall One end of part passes through out of pvc pipe and is connected with two connectors, the other end of the wall-connecting piece be located at the outside of shear wall and It is connected with the scaffold, in the vertical direction, the top and bottom of the scaffold are respectively provided with a wall-connecting piece, in longitudinal side Upwards, every three across a piece wall-connecting piece of setting；

Installation form jacking：On the horizontal direction of the scaffold, the vertical rod close to shear wall is inner vertical rod, described inner vertical The top of bar sets template jacking to be used for support shuttering；

Bracing element is installed：Bracing element is arranged at lengthening wall-connecting piece by the wall-connecting piece of the upper end of the scaffold to lengthen wall-connecting piece Between support member of encorbelmenting, one end of the bracing element is abutted with the support member of encorbelmenting and close to the portion of the support member of encorbelmenting Divide and be connected with the scaffold, the other end is connected with one end of the remote shear wall of the lengthening wall-connecting piece；

Guard rail is installed：Set at the upper lateral extent outside 200-220mm to be poured for building Cantilever Beams of the lengthening wall-connecting piece First guard rail, the second guard rail is set in the one end for lengthening the remote shear wall of wall-connecting piece.

2. shuttering supporting builder's jack operation platform erection method according to claim 1, it is characterised in that described outstanding Choose remote shear wall one end of support member also by the first steel wire rope carry out it is outstanding draw, one end of first steel wire rope and described the Remote shear wall one end connection of a part, the other end is with being anchored in shear wall and the bolt above the support member of encorbelmenting Connection.

3. shuttering supporting builder's jack operation platform erection method according to claim 2, it is characterised in that described to add One end of the remote shear wall of long wall-connecting piece also by the second steel wire rope carry out it is outstanding draw, one end of second steel wire rope with it is described Remote shear wall one end connection of wall-connecting piece is lengthened, the other end is with being anchored in shear wall and above the lengthening wall-connecting piece Bolt connection.

4. shuttering supporting builder's jack operation platform erection method according to claim 3, it is characterised in that described One steel wire rope and second steel wire rope include main rope and secondary steel wire rope, the main rope and the secondary steel wire rope Diameter is φ 20mm.

5. shuttering supporting builder's jack operation platform erection method according to claim 1, it is characterised in that the wood The through hole of box is provided with the wedge for support member of being encorbelmented for wedging.

6. shuttering supporting builder's jack operation platform erection method according to claim 1, it is characterised in that with it is described Fill the beam reinforced steel bar at scaffold opposite position and be provided with the pre-buried ring of reinforcing bar, the Part II passes through the pre-buried ring of reinforcing bar.

7. shuttering supporting builder's jack operation platform erection method according to claim 1, it is characterised in that the pin The longitudinal pitch of the vertical rod of hand cradle is 1200mm, and the horizon bar step pitch of the scaffold is 1500-1800mm.

8. shuttering supporting builder's jack operation platform erection method according to claim 1, it is characterised in that described vertical Bar, longitudinal bar of sweeping the floor, laterally sweep the floor bar, wall-connecting piece and bracing element are made of the steel pipes of φ 48 × 3.5, the support member of encorbelmenting It is made of 20# I-steel, the pvc pipe is made of DN50PVC pipes.

9. shuttering supporting builder's jack operation platform erection method according to claim 1, it is characterised in that described The length dimension of a part is 1200-1300mm, and the length dimension of the Part II is 1800-1900mm.

10. shuttering supporting builder's jack operation platform erection method according to claim 1, it is characterised in that described Spacer bar uses that C20 reinforcing bars are made and length dimension is 100-110mm.