CN107246073A - Core Walls Structure crossbar structure synchronous construction structure and method - Google Patents

Abstract

The invention provides a core tube vertical and horizontal structure synchronous construction structure and method. The synchronous construction structure of the vertical and horizontal structure of the core tube includes a vertically arranged wall outer formwork, a vertically arranged wall inner formwork, a horizontally arranged floor formwork, a first hydraulic climbing device, a second hydraulic climbing device and independent support rods; the wall The formwork on the outside of the body and the formwork on the inside of the wall are fixed by pull screws. The first hydraulic climbing device is located on the side of the formwork on the outside of the wall away from the formwork on the inside of the wall. The second hydraulic climbing device is located on the side of the formwork on the inside of the wall and away from the outside formwork of the wall. One side of the wall; the outer formwork of the wall is connected with the first hydraulic climbing device, and the inner formwork of the wall is connected with the second hydraulic climbing device; the lower part of the floor formwork is supported by an independent support rod. The vertical and horizontal structures of the core tube in the present invention can be constructed synchronously, therefore, the construction speed of the horizontal structure is accelerated, and the purpose of synchronous construction of the horizontal and vertical structures is achieved.

Description

Synchronous Construction Structure and Method of Vertical and Horizontal Structure of Core Tube

technical field

The invention relates to the construction field, in particular to a core tube vertical and horizontal structure synchronous construction structure and method.

Background technique

In the construction of super high-rise structures, the construction and deployment of the core tube and the outer frame structure are often used at different heights, and the construction of the core tube structure mainly adopts the formwork system of hydraulic climbing formwork with steel formwork. Due to the self-heaviness of the steel formwork, the hydraulic climbing formwork system is self-heavy, the material stacking capacity is reduced, and the climbing is slow. At the same time, the formwork system of the steel pipe support frame is often used in the horizontal structure construction of the core tube, and its construction speed is slower than that of the vertical structure. Therefore, the core In the construction of tube structures, the vertical structure is usually constructed first, and the horizontal structure is deployed behind the construction, resulting in difficulty in material turnover, large investment in safety protection, and longer overall construction period during horizontal structure construction.

Contents of the invention

The purpose of the present invention is to provide a synchronous construction structure and method for the vertical and horizontal structure of the core tube, so as to solve the problems of difficult material turnover, large investment in safety protection, and prolonged overall construction period in the horizontal structure construction in the prior art.

In order to solve the above-mentioned technical problems, the present invention provides a synchronous construction structure for the vertical and horizontal structure of the core tube, which includes vertically arranged wall outer formwork, vertically arranged wall inner formwork, horizontally arranged floor formwork, and a first hydraulic climbing device , the second hydraulic climbing device and an independent support rod; the outer formwork of the wall and the inner formwork of the wall are fixed by pull screws, and the first hydraulic climbing device is located at the outer formwork of the wall away from the wall One side of the inner formwork, the second hydraulic climbing device is located on the side of the wall inner formwork away from the wall outer formwork; the wall outer formwork is connected to the first hydraulic climbing device, the The inner formwork of the wall is connected with the second hydraulic climbing device; the lower part of the floor formwork is supported by the independent support rod.

Preferably, the floor formwork is spliced by a plurality of top sub-formworks, a plurality of aluminum beam keels are arranged at intervals on the lower surface of the floor formwork, and multiple aluminum beam keels are installed at intervals on the lower surface of each aluminum beam keel. Each support head is detachably connected to the top end of one of the independent support rods.

Preferably, the back of the wall outer formwork or the wall inner formwork is provided with multiple rows of channel steel back flutes from top to bottom, and the pair of tension screws are fixed at the channel steel back flutes.

Preferably, the outer formwork of the wall, the inner formwork of the wall and the formwork of the floor are all made of aluminum alloy formwork.

Preferably, the synchronous construction structure of the vertical and horizontal structure of the core tube also includes an aluminum sheet for sealing the waste openings on the outer formwork of the wall, or the inner formwork of the wall, or the floor formwork, and the aluminum The sheet has a stepped structure, and the small end of the stepped structure is inserted into the outside formwork of the wall, or the formwork inside the wall, or the discarded opening on the formwork of the floor slab, and the aluminum sheet and the outside of the wall The formwork, or the wall inner formwork, or the floor formwork is welded.

Preferably, the perforation between the pull screw and the outer formwork of the wall or the inner formwork of the wall is sealed with a shaped plastic cup.

Preferably, two adjacent back flute segments in the channel steel back flute in each row are connected by a U code, the U code is made of No. 14 channel steel, and the U code is connected by a wall-through bolt respectively connected with the two back corrugated sections.

Preferably, the back corrugated section is connected to the outer formwork of the wall or the inner formwork of the wall through hook bolts.

Preferably, the synchronous construction structure of the vertical and horizontal structure of the core tube also includes a wooden formwork used in conjunction with the outer formwork of the wall, or the inner formwork of the wall, or the floor formwork, and the wooden formwork is lined with a 50mm thick The wooden frame, the wooden frame is provided with a through hole, and the wooden formwork is connected with the external formwork of the wall, the internal formwork of the wall, or the formwork of the floor through the bolts inserted in the through hole side rib connections.

The present invention also provides a construction method for the synchronous construction structure of the above-mentioned vertical and horizontal structure of the core tube, including:

Step 1, division of climbing formwork installation units: adopt the installation method of first assembling several units on the ground, and then hoisting the units into place, and divide the hoisting units of the climbing formwork system according to the size, weight, lifting capacity of the tower crane, and site conditions, etc. It is divided into three parts, namely the climbing formwork frame for the external wall, the climbing formwork frame for the internal wall and the climbing formwork frame for the material platform;

Step 2, carried out in sequence: pre-embedding of the wall, installation of the wall-attached device, pre-assembly of the main load-bearing frame and the hanger on the ground, installation of stairs, overall hoisting of the main load-bearing frame, inserting the plug-in board and the structure after being in place. Fixing, ground assembly formwork support frame system, hoisting formwork support frame system, ground assembly support frame system, vertical support frame overall hoisting, erecting platform, laying platform slabs, installing hydraulic climbing system, ground assembly of expanded metal mesh, hoisting of expanded metal mesh Placement, installation of corner netting, wall formwork installation, floor beam and slab support frame erection, floor beam formwork installation and correction, floor slab keel installation, floor slab installation and leveling, horizontal structural reinforcement binding;

Step 3, complete vertical and horizontal concrete pouring simultaneously.

Step 4, dismantling and unloading of the aluminum alloy formwork, the lifting guide rail for climbing the climbing formwork frame body, and the lifting frame body for climbing the climbing formwork frame body;

Step 5, repeat steps 2 to 4 above.

The vertical and horizontal structures of the core tube in the present invention can be constructed synchronously. Therefore, the problems of difficult material turnover, large investment in safety protection, and prolonged overall construction period in the prior art during horizontal structure construction are avoided, and the construction speed of the horizontal structure is accelerated. The purpose of simultaneous construction of horizontal and vertical structures.

In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail below.

Description of drawings

The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

Figure 1 is a top view of the synchronous construction structure of the vertical and horizontal structure of the core tube;

FIG. 2 is a sectional view of FIG. 1 .

The reference signs in the figure: 1, the outer formwork of the wall; 2, the inner formwork of the wall; 3, the floor formwork; 4, the first hydraulic climbing device; 5, the second hydraulic climbing device; 6, the independent support rod.

detailed description

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below in conjunction with examples.

In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the present invention, rather than Full examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

The present invention provides a synchronous construction structure of the vertical and horizontal structure of the core tube, which includes a vertically arranged wall outer formwork 1, a vertically arranged wall inner formwork 2, a horizontally arranged floor formwork 3, a first hydraulic climbing device 4, and a second hydraulic climbing device. Two hydraulic climbing devices 5 and independent support rods 6; the wall outer formwork 1 and the wall inner formwork 2 are fixed by pull screws, and the first hydraulic climbing device 4 is located far away from the wall outer formwork 1 One side of the wall inner formwork 2, the second hydraulic climbing device 5 is located on the side of the wall inner formwork 2 away from the wall outer formwork 1; the wall outer formwork 1 and the wall The first hydraulic climbing device 4 is connected, and the wall inner formwork 2 is connected with the second hydraulic climbing device 5 ; the lower part of the floor formwork 3 is supported by the independent support rod 6 .

Due to the adoption of the above technical solution, the vertical and horizontal structures of the core tube in the present invention can be constructed synchronously. Therefore, the problems of difficult material turnover, large investment in safety protection, and prolonged overall construction period in the prior art during horizontal structure construction are avoided. The construction speed of the horizontal structure has achieved the purpose of simultaneous construction of the horizontal and vertical structures. In addition, the support system of the floor formwork 3 adopts an independent quick-release support system composed of independent support rods 6, the concrete strength requirement is low when the formwork is removed, and the formwork removal and turnover speed are fast.

For example, for a standard floor height of 4.5 meters, the independent quick release support system in the present invention selects a disc-type steel support, and the distance between the support poles (i.e. the independent support poles 6) is 1.2m, 0.9m, and the horizontal The rod step distance is 1.9m and 1.5m. The arrangement of supporting poles corresponds to the position of the quick-release head (supporting aluminum beam) in the design of the beam-slab formwork. At the position of multi-step cross bars, a diagonal bar is set between the upper and lower step cross bars.

Preferably, the floor formwork 3 is spliced by a plurality of top sub-formworks, the lower surface of the floor formwork 3 is provided with a plurality of aluminum beam keels at intervals, and the lower surface of each aluminum beam keel is installed at intervals There are a plurality of support heads, each of which is detachably connected to the top end of one of the independent support rods 6 .

Preferably, the back of the wall outer formwork 1 or the wall inner formwork 2 is provided with multiple rows of channel steel back flutes from top to bottom, and the pair of pull screws are fixed at the channel steel back flutes.

Preferably, the outer formwork 1 of the wall, the inner formwork 2 of the wall and the formwork 3 of the floor are all made of aluminum alloy formwork. The present invention adopts the aluminum alloy formwork, because the aluminum alloy formwork has the characteristics of light weight and high strength, therefore, the comprehensive weight of the whole formwork system is about 21-22kg/㎡, which is far lower than the weight of the traditional steel formwork. For example, the formwork system composed of aluminum alloy formwork can be mainly composed of various types of standard components, and at the same time, customized design and processing can be carried out for special parts according to needs. Wide range of features. For example, the alloy template profile is 65mm high and 4mm thick.

Preferably, the synchronous construction structure of the vertical and horizontal structure of the core tube also includes an aluminum sheet for sealing the discarded openings on the outer formwork 1 of the wall, the inner formwork 2 of the wall, or the formwork 3 of the floor, The aluminum sheet has a stepped structure, and the small end of the stepped structure is inserted into the discarded opening on the outer wall formwork 1, or the inner wall formwork 2, or the floor formwork 3, and the The aluminum sheet is welded to the outer formwork 1 of the wall, or the inner formwork 2 of the wall, or the formwork 3 of the floor. For example, for the opening of the discarded aluminum alloy template, the above-mentioned aluminum sheet is used to block the opening. The thickness of the aluminum sheet is 4mm, the size is 50mm square, and there is a protrusion with a diameter of 25mm and a thickness of 4mm in the middle. The aluminum sheet and the panel of the template are welded into a As a whole, the plugging of the discarded bolt holes is realized.

Preferably, the perforation between the pull screw and the wall outer formwork 1 or the wall inner formwork 2 is sealed with a shaped plastic cup. For example, the screw hole of the aluminum alloy formwork is blocked with a shaped plastic cup, which is set on the PVC sleeve and can be unscrewed after the formwork is removed.

Preferably, two adjacent back flute segments in the channel steel back flute in each row are connected by a U code, the U code is made of No. 14 channel steel, and the U code is connected by a wall-through bolt respectively connected with the two back corrugated sections. For example, the length of the back flute section is 1000mm, and two oblong holes are opened.

Preferably, the back corrugated section is connected with the wall outer formwork 1 or the wall inner formwork 2 through hook bolts. In order to ensure the integrity of the wall formwork, the inner and outer formwork of the outer wall and the channel steel back flute are not only connected by wall-through bolts, but also connected by the above-mentioned hook bolts. The hooks of the hook bolts hook the frame of the aluminum alloy formwork. The stud part protrudes through the channel steel back flute, and the channel steel back flute and the wall formwork are tightly connected as a whole through gaskets and nuts.

Considering the number of turnover times of aluminum alloy formwork, for local special structural arrangements, when the configuration of aluminum formwork cannot be used repeatedly, wood formwork will be partially configured. For this reason, preferably, the synchronous construction structure of the vertical and horizontal structure of the core tube also includes a wooden formwork used in conjunction with the wall outer formwork 1, or the wall inner formwork 2, or the floor slab formwork 3, and the wooden formwork The lower liner is lined with a 50mm thick wooden frame, and a through hole is opened on the wooden frame, and the wooden formwork is connected with the wall external formwork 1 or the wall internal formwork through the bolts pierced in the through hole. 2. Or the side rib connection of the floor formwork 3. For example, a 15mm thick wooden formwork is selected, and a 50mm thick wooden square is used as the lining, and the overall thickness is consistent with the aluminum formwork. The side ribs of the aluminum alloy formwork are also provided with openings correspondingly, and holes are drilled at the corresponding positions of the wooden beams, and the wooden formwork and the aluminum alloy formwork are tightly connected by bolts.

In summary, the core tube vertical and horizontal structure synchronous construction structure in the present invention has the following characteristics:

1. The formwork system is light in weight and high in strength, and the climbing formwork system has light weight and high bearing capacity. The formwork system of this construction structure adopts aluminum alloy formwork, which has the characteristics of light weight and high strength. The comprehensive weight of the formwork system is 21-22kg/㎡, which is much lower than the weight of traditional steel formwork. Using the formwork of this system, the overall weight of the hydraulic climbing formwork system is about 13t lower than that of the traditional portable steel formwork, and its own weight is greatly reduced. The reduced self-weight can supplement the bearing capacity of each stacking layer, and the material carrying capacity is greatly improved, which has a positive effect on speeding up the construction progress.

2. The system has high flexibility, wide application range and strong versatility. The combined aluminum alloy formwork system is composed of plates of different sizes and types. Each plate can be deepened in advance according to the structural form and made on demand. The formwork system has a wide range of applications and strong versatility. At the same time, the design size of the aluminum alloy formwork system takes into account the need to connect with other formwork systems, and can be easily mixed with steel formwork, wood formwork and other formwork systems, with high flexibility.

3. The horizontal and vertical structures are constructed simultaneously, and the total construction time is short. The horizontal structural formwork support system of the construction structure adopts an independent quick-release support system. Compared with the traditional steel pipe support system, the support rods of this system are greatly reduced. The concrete strength requirement is low when the formwork is removed, and the formwork removal and turnover speed are fast. Under the guarantee of this system, the construction speed of the horizontal structure is much faster than the traditional steel pipe support system, which can ensure the simultaneous construction of the horizontal structure and the vertical structure, and reduce the difficulty of material turnover and time waste in the subsequent construction of the horizontal structure.

Further, the present invention also provides a construction method for the synchronous construction structure of the above-mentioned vertical and horizontal structure of the core tube, including:

Step 1, division of climbing formwork installation units: adopt the installation method of first assembling several units on the ground, and then hoisting the units into place, and divide the hoisting units of the climbing formwork system according to the size, weight, lifting capacity of the tower crane, and site conditions, etc. It is divided into three parts, namely the climbing formwork frame for the external wall, the climbing formwork frame for the internal wall and the climbing formwork frame for the material platform;

Step 2, carried out in sequence: pre-embedding of the wall, installation of the wall-attached device, pre-assembly of the main load-bearing frame and the hanger on the ground, installation of stairs, overall hoisting of the main load-bearing frame, inserting the plug-in board and the structure after being in place. Fixing, ground assembly formwork support frame system, hoisting formwork support frame system, ground assembly support frame system, vertical support frame overall hoisting, erecting platform, laying platform slabs, installing hydraulic climbing system, ground assembly of expanded metal mesh, hoisting of expanded metal mesh Placement, installation of corner netting, wall formwork installation, floor beam and slab support frame erection, floor beam formwork installation and correction, floor slab keel installation, floor slab installation and leveling, horizontal structural reinforcement binding;

Step 3, complete vertical and horizontal concrete pouring simultaneously.

Step 4, dismantling and unloading of the aluminum alloy formwork, the lifting guide rail for climbing the climbing formwork frame body, and the lifting frame body for climbing the climbing formwork frame body;

Step 5, repeat steps 2 to 4 above.

In the following, a specific embodiment is used to illustrate the implementation process of the above method.

(1) Division of climbing formwork installation units

The climbing formwork installation of this project adopts the installation method of first assembling into several units on the ground, and then hoisting the units into place. According to the frame size, weight, tower crane lifting capacity, site site and other conditions, the lifting units of the climbing formwork system of this project are divided: External wall climbing formwork (total of 12 units, each unit has two hydraulic climbing machine positions, a total of 24 machine positions), internal wall climbing formwork (total of 6 units, each unit has four hydraulic climbing mold machine position, a total of 24 machine positions), material platform climbing formwork frame (a total of 2 units, each unit has 4 hydraulic climbing formwork positions, a total of 8 machine positions)

(2) Installation of wall pre-embedded and wall-attached devices

According to the structural characteristics of this project, it is arranged at the attachment point on the shear wall or beam, and a Φ60 casing is pre-embedded on the wall when the wall reinforcement is bound. The pre-embedded casing is stuffed with fillers such as sawdust or foam, and the two ends are sealed with tape. The pre-embedded casing must be welded and fixed with auxiliary steel bars and additional steel bars on the wall to limit the up and down and left and right movement of the embedded casing, but not to restrict the front and rear movement of the pre-embedded casing, which is convenient for mold clamping operations. After the concrete pouring of the installation layer wall is formed, the wall attachment device is installed, and the rear double row frame is removed downward to a certain height.

(3) Pre-assemble the main bearing frame and hanger on the ground

The main load-bearing frame and hanger of each machine position of the hydraulic climbing formwork frame are pre-assembled into a whole through bolts, which is the lower frame body. The platform steel girders between the lower frame bodies are connected by U-shaped bolts.

(4) When installing stairs, the wooden square of the platform can be partially tied on the ground

The platform stairs of the lower frame body are welded on the platform steel beams of the lower frame body. Bind part of the platform beams to the platform steel beams of the lower frame body through iron wires.

(5) The main bearing frame is hoisted as a whole, and after it is in place, insert the insert plate and fix it with the structure

Hoist the assembled lower frame body as a whole, insert the anti-tilt plate to fix the frame body and the structure after it is in place, and tighten the legs of the lower frame body against the wall to adjust the lower frame body vertically.

(6) Ground assembly formwork support frame system

Lay the formwork support frame connected to the back flute of the climbing formwork frame flatly in the field, connect the formwork support frame column above the back flute through bolts, and then connect the adjusting screw to the formwork support frame column through the pin shaft. Afterwards, the assembled supporting frame is hoisted and installed on the pulley with a tower crane, and the ground assembly of the formwork supporting frame is completed.

(7) Hoisting formwork support frame system

Lift the assembled formwork support frame and install it on the uppermost platform steel beam of the lower frame body, and the pulley and the platform steel beam are connected by U-shaped bolts.

(8) Ground assembly support frame system

Lay out the columns of the support frame in the field, connect the platform steel beams between the columns of the support frame through U-shaped bolts, and then weld and install the stairs between the platforms, and bind some platform wooden beams.

(9) Overall hoisting of the vertical support frame

The assembled support frame is lifted by the tower crane, and the support frame is installed in the connection hole above the machine position of the lower frame body through bolts to complete the overall hoisting of the upper frame body.

(10) Set up the platform and lay the platform board

Bind the remaining wooden beams of the platform with the steel beams of the platform with iron wires to complete the platform wooden beams. Hang the patterned steel plate into the frame for laying. After the patterned steel plate is paved, the two adjacent patterned steel plates are first welded and fixed, and then the self-tapping screws are passed through the patterned steel plate and fixed on the platform wooden frame by a hand drill to complete the patterned steel plate. Install.

(11) Install hydraulic climbing system

Lift the hydraulic climbing formwork cylinder, pump station, electrical box, and cables into the frame platform, and install the hydraulic electric control system.

(12) Ground assembly of steel mesh

Before the steel mesh is assembled on the ground, an assembly platform with an area of 7m x 7m and a height of 1.2m is set up on the ground. The mesh and the vertical rod are firstly connected by bolts, and then the horizontal rod and the vertical rod are connected by bolts. Assemble the steel mesh parts into a whole piece of steel frame steel mesh.

(13) Lifting and loading of steel mesh

Use a tower crane to lift the entire steel mesh and move it to the outside of the frame for hoisting into place. The crossbar of the steel mesh is placed on the joist on the outside of the frame, and the steel mesh crossbar and the joist of the frame are connected by U-shaped bolts. Connect to realize the fixation of expanded metal mesh and frame body.

(14) Installation of corner guard net

The corner netting frame is first welded and connected on the ground, the movable mesh is inserted into the corner netting frame, and the corner netting is hoisted as a whole and moved to the corner of the frame body. First weld the cross bar of the corner net protection frame with the vertical pole on the side of the conventional net protection, and then weld and reinforce the side poles of the corner net protection frame and the side poles of the conventional net protection through the auxiliary cross bar. Two corner guards at one corner form a closed recessed corner.

(15) Wall formwork installation

a. Before installing the wall formwork, do a good job of cleaning the formwork and apply the release agent.

b. The wall formwork is assembled and formed at one time and installed on the climbing formwork system. The outer formwork of the outer wall is hung on the back of the climbing formwork trolley. Formwork body steel beams. After the wall panel is installed, install and then install the back flute reinforcement on both sides. The hook bolt first fixes the back flute, and then installs the wall formwork to pull the screw and fix it.

(16) Erection of floor beams and slab support frames

a. The standard story height of this project is 4.5m, and the formwork support adopts disc steel support.

b. Before the formwork support system is set up, it should be set out according to the plan, and a model unit should be made. After the formwork is set up in sections or as a whole, the project leader will organize technical, safety and supervisory personnel to check and accept.

c. During the installation process of the formwork and its support system, set up triangular support frames for the first four vertical poles to ensure their vertical stability, and tie the horizontal poles and diagonal poles in time. After the subsequent vertical poles are erected, they must be connected with the surrounding vertical poles through horizontal rods and oblique rods in time to ensure firm fixation and prevent overturning. Before the wall formwork is installed with the pull screw, the board surface should be inclined inward at a certain angle and braced firmly to prevent collapse.

(17) Installation and correction of floor beam formwork

a. After the vertical correction of the wall body is completed, the floor beam bottom slab formwork is installed.

b. The bottom formwork should be installed first for the floor beam formwork, and the side formwork should be installed after correcting the verticality.

(18) Floor panel keel installation

After checking that all parts of the line hammer are pointing to the vertical reference line of the wall, start to install the floor keel. The keel installation is related to the flatness of the floor surface, and the level can be adjusted with a single support during the installation period.

(19) Floor panel installation and leveling

When the diagonal line of the floor is checked correctly, start to install the floor formwork. The floor formwork should be arranged in parallel one by one, first temporarily fixed with pins, and finally the pins are tightened uniformly.

After the formwork of each unit is installed, use a level to measure its flatness and the installation elevation of this floor. If there is any deviation, it will be corrected through the adjustable support of the formwork system until the overall flatness and corresponding elevation are achieved.

(20) Binding of horizontal structural steel bars

Binding beams and slab reinforcement.

(21) Simultaneous pouring of vertical and horizontal concrete

In concrete pouring, the vertical components should be poured first, and then the horizontal components should be poured.

a. Layered pouring is adopted in the vertical structure pouring. All columns and shear walls need to be divided into 2-3 times with an interval of 4 hours to ensure that each pouring does not exceed 2 meters and is vibrated evenly.

b. In the pouring of horizontal structures, the concrete pouring should be spread from the middle to the surroundings to prevent the overall displacement of the aluminum formwork. And it should be ensured that the material is evenly cut, and the material must not be too thick at one time.

c. The vertical concrete pump pipe cannot be in rigid contact with the aluminum alloy formwork. The pump pipe must be fixed on the two floors below the working surface, and the pump pipe on the floor needs to be shock-proof with rubber pads.

The concrete labels of the vertical structure and the horizontal structure are different. In order to meet the requirements of simultaneous pouring of the vertical and horizontal structures, the following measures are taken to ensure the pouring of the separate labels:

a. Strengthen plan management: Calculate the vertical and horizontal concrete demand of each floor in advance.

b. Strengthen on-site management: When pouring horizontal structures (concrete label is C35), ensure that the concrete in the collecting hopper (the volume of the hopper used is 0.7m ³ ) can fill the pump pipe (when pouring 7 floors, the concrete in the collecting hopper is 1/ 2 hoppers), and the bottom watcher confirms to the top discharger whether pouring of slab concrete has started. The high-grade concrete of the vertical structure can be 5% to 10% more than the calculated amount. The amount of concrete in the hopper is increased by 1/40 hopper compared with the upper layer.

(22) Aluminum alloy formwork dismantling and unloading

a. Wall formwork:

When the demolition condition is reached, the pull screw should be removed first, and then the wall formwork should be removed. The wall formwork should start from the top of the wall.

The wall formwork rises and falls together with the climbing formwork system.

b. Horizontal structure template:

1) When the formwork is removed, only the formwork is removed, and the quick-release head (meteor hammer joint) is retained, and it is strictly forbidden to touch the rods of the support system. When the top formwork is removed, every time each formwork needs to be dragged by a person, and then the pins are removed. When the formwork is lowered, it should be handled with care, and it is strictly forbidden to drop the formwork directly to the floor. The demolition work starts with the removal of the plate girder, the removal of the 180mm pin and the beam formwork connecting rod on the plate girder where it is located, followed by the removal of the pins and wedges of the plate girder and the adjacent top plate, and then the beam bottom plate can be removed.

2) The support system of this project has three floors at the bottom of the slab and five floors at the bottom of the beam, which are used for turnover.

3) The upper and lower transfer of beams, slab templates and their supporting materials is completed by manual transfer.

4) Due to the use of the quick release system, the maximum spacing between the supports under the slab is 1200mm×1200mm, and the spacing between the supports under the beam is 1200mm. Therefore, the concrete strength when the formwork is removed and the support system is removed is stipulated as follows:

(23) Lifting guide rail for climbing formwork frame

When the strength of the concrete on the upper wall meets the demoulding requirements, the formwork can be moved back or lifted away. At this time, the pouring of the roof concrete can be arranged, and the wall bolts and wall attachment devices can be installed at the pre-embedded holes. Adjust the cam swing block of the upper and lower climbing boxes of the hydraulic climbing formwork frame to the position of the climbing guide rail, operate the hydraulic lifting device, climb the guide rail to the position of the wall-attached device on the previous floor, and continue to raise the guide rail by about 50cm. Remove the bottom wall-attached device and move it to the second platform from the top for standby, then press down the guide rails to the wall-attached device.

(24) Lifting frame for climbing formwork frame

When the guide rail climbs in place, adjust the upper and lower climbing box cam swing blocks of the hydraulic climbing formwork frame to the position of the climbing frame body, slightly top the frame body, pull out the insert plate fixed to the structure, loosen the legs against the wall, and then operate the hydraulic lifting The device climbs the frame body to the position on the previous floor, inserts the plug-in board, tightens the legs against the wall, and then moves the formwork support frame to strengthen the formwork of the outer wall, and pours the concrete of the wall.

After the frame climbs into place, the 100mm gap between two adjacent frames is closed with a flap. Repeat the normal process until the structure is capped.

(25) Wall formwork installation and mold closing, horizontal structure formwork installation

The installation method and requirements are the same as (15)-(19).

(26) Binding of horizontal structural steel bars

(27) Simultaneous pouring of vertical and horizontal structural concrete

(28) Aluminum alloy formwork dismantling and unloading

(29) The climbing formwork frame climbs up again, and then circulates the above construction process

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 Core Walls Structure crossbar structure synchronous construction structure, it is characterised in that including the wall outer side template being vertically arranged (1) the wall inner side template (2) that, is vertically arranged, horizontally disposed slab form (3), the first hydraulic climbing device (4), second Hydraulic climbing device (5) and independent support bar (6)；

The wall outer side template (1) is fixed with the wall inner side template (2) by Screw arbor with nut at both-ends, first hydraulic climbing Device (4) is located at the side of the remote wall inner side template (2) of the wall outer side template (1), and second hydraulic pressure is climbed Rise the side that device (5) is located at the remote wall outer side template (1) of the wall inner side template (2)；

The wall outer side template (1) is connected with the first hydraulic climbing device (4), the wall inner side template (2) and institute State the connection of the second hydraulic climbing device (5)；

The lower support of the slab form (3) has the independent support bar (6).

2. Core Walls Structure crossbar structure synchronous construction structure according to claim 1, it is characterised in that the slab form (3) it is spliced by multiple top surface subtemplates, multiple aluminium diplodocus has been positioned apart from the lower surface of the slab form (3) Bone, the lower surface compartment of terrain of each aluminium diplodocus bone is provided with multiple fasteners, each branch fastener with described in one The top of independent support bar (6) is detachably connected.

3. Core Walls Structure crossbar structure synchronous construction structure according to claim 1, it is characterised in that the wall outer side mould The back side of plate (1) or the wall inner side template (2) is from top to bottom provided with multirow channel-section steel back cord, and the Screw arbor with nut at both-ends is fixed on At the channel-section steel back cord.

4. Core Walls Structure crossbar structure synchronous construction structure according to claim 1, it is characterised in that the wall outer side mould Plate (1), the wall inner side template (2) and the slab form (3) use aluminum alloy mould plate.

5. Core Walls Structure crossbar structure synchronous construction structure according to claim 4, it is characterised in that the Core Walls Structure is in length and breadth Structure synchronization constructing structure also includes being used to block the wall outer side template (1) or the wall inner side template (2) or institute The aluminium flake of the discarded perforate on slab form (3) is stated, the aluminium flake has terraced structure, and the small end of the terraced structure is inserted Enter in the discarded perforate on the wall outer side template (1) or the wall inner side template (2) or the slab form (3), The aluminium flake is welded with wall outer side template (1) or the wall inner side template (2) or the slab form (3).

6. Core Walls Structure crossbar structure synchronous construction structure according to claim 4, it is characterised in that the Screw arbor with nut at both-ends with Using sizing glue cup closure at perforation between the wall outer side template (1) or the wall inner side template (2).

7. Core Walls Structure crossbar structure synchronous construction structure according to claim 3, it is characterised in that the channel-section steel of often going is carried on the back Using U-shaped code connection between two adjacent back cords section in stupefied, the U-shaped code is made of No. 14 channel-section steels, and the U-shaped code passes through Through-wall bolt is connected with described two back cords section respectively.

8. Core Walls Structure crossbar structure synchronous construction structure according to claim 7, it is characterised in that the back cord section passes through Hook bolt is connected with the wall outer side template (1) or the wall inner side template (2).

9. Core Walls Structure crossbar structure synchronous construction structure according to claim 1, it is characterised in that the Core Walls Structure is in length and breadth Structure synchronization constructing structure also includes and the wall outer side template (1) or the wall inner side template (2) or the floor It is lined with the plank sheathing that template (3) is used cooperatively, the plank sheathing on the thick wooden a tree, used in making timber for boats of 50mm, the wooden a tree, used in making timber for boats and offers through hole, institute State plank sheathing and pass through the bolt that is located in the through hole and the wall outer side template (1) or the wall inner side template (2) or the slab form (3) the connection of side rib.

10. a kind of construction method of the Core Walls Structure crossbar structure synchronous construction structure any one of claim 1 to 9, its It is characterised by, including：

Step 1, creeping formwork installation unit is divided：First installation on ground is taken to lift installation side in place into some units, then subdivision This climbing form system lifting elements are divided into three by formula according to situations such as support body size, weight, tower crane handling ability, live place Individual part, i.e. exterior wall climbing form frame, interior wall climbing form frame and material platform climbing form frame；

Step 2, perform successively：The installation of wall pre-embedded, wall-attaching equipment, ground preassembling, peace are carried out by primary load bearing frame and hanger Fill stair, the integral hoisting of primary load bearing frame, enter to plug plate behind position and structure is fixed, installation on ground formwork-support system, Formwork-support system is lifted, platform, laying landing slab are set up in installation on ground support frame system, vertical supporting frame integral hoisting, Hydraulic climbing system is installed, the installation on ground of expanded metal lath, the lifting of expanded metal lath enters position, the installation of turning protecting wire net, wall form peace Dress, floor beam, plate bracing frame are set up, floor beam model sheetinstallat and correction, floorboard keel installation, and floorboard is installed and leveling, Horizontal structure reinforcing bar colligation；

Step 3, vertical and Horizontal concrete is completed synchronously to pour.

Step 4, aluminum alloy mould plate is removed and had bad luck, the lift rail that creeping formwork support body climbs, the lifting frame body that creeping formwork support body climbs；

Step 5, above step 2 to 4 is circulated.