WO2019011319A1

WO2019011319A1 - Hydraulic steel jacking platform capable of achieving integral and local jacking of external formwork and steel platform

Info

Publication number: WO2019011319A1
Application number: PCT/CN2018/095591
Authority: WO
Inventors: 丁云波; 陈跃熙; 刘�东; 张锐; 胡宁; 韩宇; 崔苗; 任鹏程; 徐永亮
Original assignee: 四川华西集团有限公司; 中国华西企业有限公司
Priority date: 2017-07-14
Filing date: 2018-07-13
Publication date: 2019-01-17
Also published as: CN107299755A

Abstract

A hydraulic steel jacking platform capable of achieving integral and local jacking of an external formwork and steel platform, comprising a climbing system (17) in a stereoscopic structure formed by sequential enclosure of a plurality of climbing form units (21), wherein a jacking system (16) formed by a plurality of abreast jacking units (20) is arranged in the stereoscopic structure; the climbing system (17) and the jacking system (16) are both capable of moving vertically; and a space for pouring of a concrete wall is formed between the climbing system (17) and the jacking system (16). The described steel platform has the advantages that connection modes are set as required by means of designing external climbing and internal jacking, which guarantees construction safety, shortens the distance from the top surface of the platform to a main working plane, improves the operating efficiency of operators going up and down, and increases the operating space, so that convenience in mounting in position is achieved, and work efficiency is increased. The hydraulic steel jacking platform is especially suitable for special buildings such as super high-rise buildings.

Description

Hydraulic jacking steel platform for integral and partial lifting of outer formwork and steel platform

Technical field

The invention relates to a super high-rise building technology, in particular to a hydraulic jacking steel platform capable of realizing integral and partial lifting of an outer formwork and a steel platform.

Background technique

Super high-rises usually refer to buildings with more than 40 floors or more than 200 meters in height. And the super high-rise generally adopts a cylinder structure and a steel structure.

The construction of super high-rise buildings in China generally adopts the overall climbing steel platform formwork system of Shanghai Construction Engineering and the large top mold formwork system of the China Construction Third Subsidiary, and some adopt the DOKA formwork system, but the DOKA climbing formwork system platform is effective. Insufficient load bearing, unable to meet the requirements of the installation and construction material stacking of the distributor. The common shortcoming of the first two is that the platform pursues a large and complete approach, adopting the overall large platform plus hanging aisle, but the biggest disadvantage is that the distance from the top surface of the platform to the main operation surface is high, and the operation efficiency of the operator is not high, and The operation space of the steel structure hoisting and the steel bar tying work surface is narrow, and the installation is extremely inconvenient, which has a great influence on the work efficiency.

Summary of the invention

The technical problem to be solved by the invention is that the existing super high-rise structure is constructed by using a climbing mold or a top mold separately, the distance from the top surface of the platform to the main operation working surface is high, the operation efficiency of the upper and lower operators is not high, and the lifting of the steel structure is caused. The operation space of the steel bar tying work surface is narrow, the installation is extremely inconvenient, and the work efficiency is greatly affected. The purpose is to provide a hydraulic jacking steel platform capable of realizing the overall and partial lifting of the outer formwork and the steel platform. The steel platform is designed to externally climb the inner roof, and the corresponding connection operation mode is set according to the need, thereby ensuring the safety of the construction, shortening the distance from the top surface of the platform to the main operation working surface, and improving the upper and lower sides of the operator. The working efficiency; the operating space is increased, so that the installation of the steel structure and the steel bar is very convenient, and the pouring of the concrete can directly reach the pouring point, thereby avoiding the trouble of using the series pouring in the large drop, greatly improving the work efficiency, especially Suitable for the construction of super high-rise buildings.

The invention is achieved by the following technical solutions:

A hydraulic jacking steel platform capable of integrally and partially lifting the outer formwork and the steel platform, comprising a three-dimensional structure climbing system formed by a plurality of climbing die units, wherein the three-dimensional structure is internally arranged with a plurality of juxtaposed The jacking system consists of a jacking unit, and both the climbing system and the jacking system are capable of vertical movement, and a space for the steel structure and the steel bar to install and pour the concrete wall is formed between the climbing system and the jacking system. The existing super-high-rise building construction generally adopts two systems of climbing mold or top mold formwork. The climbing mold system can achieve partial jacking but insufficient effective bearing, and cannot meet the requirements of the stacking machine and construction material stacking code. The disadvantage of the top mold system is that the platform pursues a large and complete approach. The overall large platform and the hanging walkway are adopted. Although the load bearing requirements can be met, the operation space of the steel structure lifting and the steel bar binding work surface is narrow, the installation is extremely inconvenient, and the work efficiency is improved. Great limit; and can only be lifted as a whole. If the construction flow node is blocked during construction, the entire formwork system will only wait and cannot carry out the next work, resulting in a work-in-the-work phenomenon. Since the super high-rise building itself is a special building, the technical construction of it is difficult, and there are many difficulties to be overcome. Due to the limitations of technology, equipment and funds, the construction workers cannot use the two at the same time, and only use one of them. The super high-rise building top mold designed by the design method of the outer mold frame and the steel platform combination effectively overcomes the above shortcomings, and not only solves the problem of insufficient installation and construction material stacking of the DOKA climbing formwork system. At the same time, the distance between the platform and the working surface is reduced, the working space is spacious, and the installation of the steel structure and the steel bar is not affected at the same time. At the same time, the outer mold frame and the steel platform of the corresponding part can be selected according to the blocked portion of the construction flow to continue to cooperate with the blocked node. Work, while the rest of the outer formwork and the steel platform carry out the next lifting work according to the normal work, and in the process of jacking, the work surface of the blocked node is not affected to continue the corresponding work, and the work is not completed, and the effect of the construction period is not affected.

The climbing modules in the climbing system on the same side wall of the three-dimensional structure are connected to the jacking system close to the side wall and move synchronously, controlled by hydraulic and electronic control. A space for the steel structure and the steel bar to install and pour the concrete wall is formed between the climbing module unit and the adjacent jacking unit, so that it is more convenient when the concrete is poured, which shortens the top surface of the platform. The distance to the main operation surface is higher, and the operation efficiency of the operator is higher and higher, and the operation space is increased, which makes the installation in place very convenient and greatly improves the work efficiency.

In order to facilitate the passage, a channel plate is arranged between the climbing module unit and the adjacent jacking unit and the adjacent jacking unit. This is a temporary plate. When the jacking is required, the channel plate is not revoked. Or when corresponding to the jacking, remove the channel board and install it as needed.

The jacking unit comprises a lower support frame and an upper support frame, and the upper support frame is disposed directly above the lower support frame, the upper support frame is provided with a hydraulic cylinder, the oil cylinder is provided with an oil rod, and the bottom of the oil rod passes through the upper support The rear frame is fixed to the lower support frame. When the jack is raised, the lower support frame or the upper support frame is used as a fulcrum. The upper support frame or the lower support frame can be moved upwards under the action of the hydraulic cylinder and the oil rod, and the lower support frame can be inserted into the upper support frame. In the support frame. At present, with the advancement of building technology, people are increasingly advocating super high-rise buildings. The top-mold system commonly used in the construction of super-tall buildings is highly important because of its large weight, resulting in high center of gravity, poor stability, and high altitude. The wind is large, there is a big safety hazard. In order to ensure its safety, it is necessary to further increase the lifting force, so that the cylinder required for jacking is high, and a special custom-made jacking cylinder and jacking system are required. The lift cylinder and jacking system can only be applied to the project and the construction site. It is not universal in other projects and construction sites, and the reuse rate is low, which causes the construction cost to increase. The jacking system of this scheme adopts the system. The design concept of total control and standardization plus refinement, by optimizing the structural force of the system, changing the single point or less support to moderate multi-point support, while meeting the requirements of standardization and assembly, greatly reducing the support of each support point. Force, and by optimizing the force mode of the main support members, try to exert the reliable resistance of the standard parts, and design the whole assembly and maintenance Liter steel platform jacking system. The jacking system is lifted into position according to its standard layer when jacking, the top lift is only the standard layer height, the center of gravity of the jacking is low, the structure is stable and not easy to tilt, and the operation of lifting once in place is simple. High efficiency, reducing the opening on the concrete wall, so that the wall structure is not damaged and affected.

The hydraulic cylinder support structure is composed of a plurality of sequentially connected coaxial cylinders, and the joint of the cylinder forms a seal, and the lowermost cylinder is fixed to the upper support frame, and the uppermost cylinder is fixed to the operation platform. The connecting portions of the cylinders are all provided with guiding connecting plates, and the guiding connecting plates at each joint are two pieces, and are symmetrically disposed on both sides of the cylindrical body and closely fixed thereto, and the joint of the cylindrical body is located at the guiding connecting plate In the range, high-strength bolted connections are used. The working stroke of the hydraulic cylinder is determined according to the height of the building standard, so that the hydraulic cylinder is lifted into position at one time. The special floor is pre-buried more than once, and the lifting method is solved once more, which makes the hydraulic cylinders used more versatile and has higher recycling efficiency in different construction sites in the future. In order to make the barrel more stable and prevent tilting, a guiding connecting plate is designed, which limits and strengthens the joint of the barrel to meet the stress and stability during use.

The lower support frame and the upper support frame are each provided with a connecting member, and the connecting member passes through the corresponding lower support frame or the upper support frame and is connected with the embedded member in the shear wall. The lower support frame comprises a horizontal frame one, the horizontal frame one is an inner hollow rectangular frame, and two horizontal parallel bars are arranged below the horizontal frame, and the top ends of the vertical bars are fixed perpendicularly to the horizontal frame, and the vertical The straight rods are all attached to the shear wall, and the connecting members are vertically connected through the vertical rods and connected with the embedded parts in the shear wall, and two parallel lines are arranged between the horizontal frame and the vertical rod. The slanting rods 1 and the two ends of the slanting rods 1 are respectively fixed with the horizontal frame 1 and one of the vertical rods, and the vertically connected rods 1 , the slant rods 1 and the horizontal frame 1 form a right triangle. The upper support frame comprises a horizontal frame 2, the horizontal frame 2 is an inner hollow rectangular frame, the lower support frame is arranged in the end face of the rectangular frame, and two parallel vertical bars 2 are arranged below the horizontal frame 2, the vertical bar 2 The top ends are fixed perpendicularly to the horizontal frame 2, and the vertical rods 2 are respectively attached to the shear wall, and the connecting members vertically pass through the vertical rods 2 and are connected with the embedded parts in the shear wall, in the horizontal frame There are two parallel slanting rods 2 disposed between the vertical rods 2, and two ends of the slanting rods 2 are respectively fixed with the horizontal frame 2 and one of the vertical rods 2, and the connected vertical rods 2 and slant rods 2 and The horizontal frame 2 constitutes a right triangle. The top surface of the horizontal frame 1 and the top surface of the horizontal frame 2 are fixed with a mounting plate, the hydraulic cylinder is fixed on the mounting plate on the horizontal frame 2, and the oil rod is fixed on the mounting plate of the horizontal frame 1. The horizontal frame 2 is provided with a flange connection base, the flange connection base is fixed on the mounting plate on the horizontal frame 2, the bottom of the hydraulic cylinder is fixed on the flange connection base, and the top of the oil rod passes through the flange connection base Inserted into the hydraulic cylinder afterwards. A mounting seat is arranged above the horizontal frame, the mounting seat is fixed on the mounting plate of the horizontal frame, and the bottom end of the oil rod is inserted into the mounting seat and fixed. The top surface of the mounting seat is recessed to form a mounting groove, and the bottom end of the oil rod is inserted into the mounting groove, and a locking pin is disposed in the mounting groove, and the locking pin passes through the oil rod and the mounting seat at the same time. Through this structural design, the stability of the support frame can be greatly increased, so that it can maintain its stability during the jacking process, and ensure the safety and reliability during the jacking process, the vertical rod, the inclined rod, the horizontal frame, Both the vertical rod 2 and the diagonal rod 2 are made of steel. After the jacking is in place, it is convenient to load and unload, greatly improving work efficiency.

The specific lifting method of the jacking unit is:

The first step: preparation work, check whether the stacking materials of each layer meet the design requirements, the stacking code of the materials should not be too concentrated and exceed the design requirements; at the same time, except for the connection of the upper and lower support frames to the building, there is no other part (including the template) and the building. Connection and interference.

Step 2: First remove the connecting piece between the upper support frame and the building, and reconfirm that the jacking parts do not interfere with the building.

The third step: start the power system to carry out the jacking operation as required, and pay attention to observe the system pressure and electrical abnormalities until the upper support frame and the entire frame reach the next connection site to stop.

Step 4: Connect the connecting parts of the upper support frame, check that all the connections are intact, remove the connecting parts of the lower support frame, and start the lifting hydraulic cylinder so that the oil rod is contracted to the connection position of the next layer, and then connected in place. The connecting piece of the support frame completes the lifting work of a standard layer.

The jacking method has the advantages of simple steps, can be lifted into position at one time when passing through the standard layer, and the center of gravity of the entire jacking process is stable, and the force of the jacking is transmitted to the wall through the connecting member, and during the jacking process, Because of the high rise of the standard layer, there are only embedded parts corresponding to the connecting pieces on the wall of each layer, and there are no extra holes, which have no influence or damage to the building wall.

Compared with the prior art, the invention has the following advantages and beneficial effects: the steel platform is designed to climb the inner top, and the corresponding connection operation mode is set according to requirements, thereby ensuring the safety of the construction and shortening the platform. The distance from the top surface to the main operation surface improves the working efficiency of the operator. The operation space is increased, which makes the installation of the steel structure and the steel bar very convenient. The pouring of the concrete can directly reach the pouring point, avoiding the large The drop is caused by the trouble of pouring the crucible, which greatly improves the work efficiency, and is especially suitable for the construction of super high-rise buildings.

DRAWINGS

The drawings are intended to provide a further understanding of the embodiments of the present invention, and are not intended to limit the embodiments of the invention. In the drawing:

Figure 1 is a partial cross-sectional view of the present invention;

Figure 2 is a plan view of the present invention;

Figure 3 is a schematic structural view of the jacking unit;

Figure 4 is a side view of Figure 3;

Figure 5 is a diagram showing a state of preparation when jacking up;

Figure 6 is a diagram showing the state in which the upper support frame is removed and removed during jacking;

Figure 7 is a diagram showing the state in which the upper support frame is raised into position and fixed when the jack is raised;

Figure 8 is a diagram showing the state in which the lower support frame is raised in position and fixed in the case of jacking.

Marked and corresponding part names in the drawing:

1-guide connection plate, 2-high-strength bolt, 3-hydraulic cylinder, 4-fixed pin, 5-flange connection base, 6-connector one, 7- upper support frame, 8-oil rod, 9-cut Force wall, 10-connector 2, 11-lower support frame, 12-upper mounting plate, 13-mounting seat, 14-lower mounting plate, 15-locking pin, 16-lift system, 17-climbing system, 18 - Pouring space, 19-channel plate, 20-lift unit, 21-climbing unit.

Detailed ways

The present invention will be further described in detail below with reference to the embodiments and the accompanying drawings. As a limitation of the invention.

Example 1:

As shown in FIG. 1 and FIG. 2, a hydraulic jacking steel platform capable of integrally and partially lifting the outer formwork and the steel platform, comprising a three-dimensional structure climbing system 17 formed by a plurality of climbing modules 21 in sequence, is described. The interior of the three-dimensional structure is provided with a plurality of jacking systems 16 of juxtaposed lifting units 20 arranged in parallel, and both the climbing system 17 and the jacking system 16 are vertically movable and between the climbing system 17 and the jacking system 16 Form a space for steel structures and steel bars to install and pour concrete walls. Generally, the three-dimensional structure formed by the climbing module unit 21 is a regular square body, and when climbing, it is usually climbed by a side wall, and is moved upward by the power system. The steel platform is designed to climb the inner top. According to the need to set the corresponding connection operation mode, not only ensure the safety of construction, shorten the distance from the top surface of the platform to the main operation surface, improve the operation efficiency of the operator up and down; increase the operation space, make the steel structure and The installation of the steel bar is very convenient, and the pouring of the concrete can directly reach the pouring point, avoiding the trouble of using the serial casting of the large drop, greatly improving the work efficiency, and is especially suitable for the construction of the super high-rise building.

Example 2:

As shown in FIG. 1 and FIG. 2, on the basis of Embodiment 1, the climbing mold units 21 of the climbing mold unit 21 located on the same side wall of the three-dimensional structure are connected and synchronously moved with the jacking unit 20 near the side wall; A pouring space 18 for the steel structure and the steel bar mounting and pouring of the concrete wall is formed between the climbing mold unit 21 and the adjacent jacking unit 20 and between the adjacent jacking units 20. A channel plate 19 is disposed between the climbing module unit 21 and the adjacent jacking unit 20 and between the adjacent jacking units 20.

The core tube center steel platform is designed as six ascending unit 20 according to the building structure. The outer mold frame adopts the mature climbing mold system, and the steel platform and the climbing mold are connected through the steel platform. Under normal circumstances, the unified lifting requirement is realized. When the construction node of any corresponding part of the six module partitions is blocked, the outer mold frame and the steel platform corresponding to the blocked node can be retained, and the remaining steel platforms and outer mold frames are in accordance with Originally required to carry out the ascending, after the in place, the relevant work can continue, without affecting the original planned construction period, and the partial jacking work after the blocked node work is regained, basically does not cause the work-in-progress phenomenon, and the field work arrangement has greater adjustment flexibility. Sex.

As shown in Fig. 1, the biggest problem for the existing top mold system is that the operation space of the steel structure hoisting and steel lashing work surface is narrow, the installation is extremely inconvenient and the work efficiency is low, and the mature climbing mold system is adopted through the periphery, and the internal top mold is adopted. The top mold system with six independent modules makes the space of the top two main working surfaces (rebar lashing and steel structure hoisting welding parts) extremely spacious and the field of view is extremely wide, which greatly improves the working efficiency.

The designed hydraulic jacking steel platform (the combination of the outer climbing mold and the top mold) which can realize the integral and partial lifting of the outer mold frame and the steel platform can effectively solve the problem that the distance from the top surface of the platform to the main operation working surface is high, and the operator has trouble. Moreover, the work efficiency is not high, and the operation space of the steel structure hoisting and steel bar tying work surface is narrow, the steel structure installation is extremely inconvenient, and the work efficiency is greatly affected, which has higher construction efficiency and comprehensive economic benefits. .

The designed hydraulic jacking steel platform (the combination of the outer climbing mold and the top mold) which can realize the integral and partial lifting of the outer mold frame and the steel platform can effectively solve the problem that the distance from the top surface of the platform to the main operation working surface is high, and the operator has trouble. Moreover, the work efficiency is not high, and the operation space of the steel structure hoisting and steel lining work surface is narrow, the steel structure installation is extremely inconvenient, and the work efficiency is greatly affected, and the problem of the shovel pouring needs to be solved. Trouble, with higher construction efficiency and comprehensive economic benefits.

According to the part of the construction blocked flow node, the outer formwork and the steel platform of the corresponding part are selected to continue working with the blocked node, while the other outer formwork and the steel platform are lifted according to the normal work, and the blockage process does not affect the blockage process. The working face of the node continues to complete the corresponding work, achieving no work, and does not affect the effect of the construction period.

Example 3:

On the basis of the above embodiment, as shown in FIG. 3 and FIG. 4, the jacking unit 20 includes a lower support frame 11 and an upper support frame 7, and the upper support frame 7 is disposed directly above the lower support frame 11, the upper support The hydraulic cylinder 3 is installed on the frame 7. The hydraulic cylinder 3 is provided with an oil rod 8. The bottom of the oil rod 8 passes through the upper support frame 7 and is fixed to the lower support frame 11. When the jacking is up, the lower support frame 11 or the upper support frame 7 is The fulcrum, the upper support frame 7 or the lower support frame 11 can be moved upward by the action of the hydraulic cylinder 3 and the oil rod 8, while the lower support frame 11 can be inserted into the upper support frame 7. When the jacking is performed, the upper support frame 7 and the lower support frame 11 are respectively used as fulcrums to realize the corresponding jacking, which enables the jacking to be once in place, and the lifting space required for the structure is small, and the jacking force can be reasonably distributed. This enables the required jacking cylinders to be able to use existing common cylinders, which is easy to assemble and maintain, saving costs.

Example 4:

As shown in FIG. 3 and FIG. 4, on the basis of the above embodiment, the hydraulic cylinder support structure is composed of a plurality of sequentially connected coaxial cylinders, and the joint of the cylinder forms a seal, and the lowermost cylinder and the upper part The support frame 7 is fixed, and the uppermost cylinder is fixed to the operation platform. The connecting portions of the cylinders are all provided with guiding connecting plates 1, and the guiding connecting plates 1 at each joint are two pieces, and are symmetrically disposed on both sides of the cylindrical body and closely fixed, and the connection portion of the cylindrical body is located at the guiding connecting plate In the range of 1. Generally, the guiding connecting plates 1 are disposed at the ends of each of the cylinders, and are connected by the high-strength bolts 2, so that the guiding connecting plates 1 can pass through the passages to form a close contact with the cylinders, so that the fixing and positioning are limited. The bits are more precise. The number and length of the cylinders are set according to the common modulus of the actual height of the high-rise building. The working stroke of the hydraulic cylinder is determined according to the height of the building standard, so that the hydraulic cylinder is lifted into position at one time. The special floor is pre-buried more than once, and the lifting method is solved once more, which makes the hydraulic cylinders used more versatile and has higher recycling efficiency in different construction sites in the future. There is also a square opening in the cylinder for easy replacement of the cylinder. The basic modulus of the cylinder and cylinder load-bearing structure is 3 meters high. The height of the implementation project is 4.5 meters according to the modulus. The specific layer height of the specific targeted project is increased according to the principle of priority number, so that the whole system can meet almost all high-rise buildings. The construction requirements maximize the utilization of all structural components and major hydraulic components.

Example 5:

As shown in FIG. 3 and FIG. 4, on the basis of the above embodiment, the lower support frame 11 and the upper support frame 7 are respectively provided with connecting members, and the connecting members pass through the corresponding lower support frame 11 or the upper support frame 7 and The embedded parts in the shear wall 9 are connected. The connecting member connected to the upper supporting frame 7 is named as the connecting member 6 , and the connecting member connected to the lower supporting frame 11 is named as the connecting member 2 , and the connecting member 6 and the connecting member 20 are both made of two 10.9-class M36 high. Strength connection bolts. The specific structure of the lower support frame 11 and the upper support frame 7 is that the lower support frame 11 includes a horizontal frame one, the horizontal frame one is an inner hollow rectangular frame, and the horizontal frame is provided with two parallel vertical bars one below the vertical frame. The top ends of the straight rods are fixed perpendicularly to the horizontal frame, and the vertical rods are all attached to the shear wall 9, and the connecting members are vertically connected through the vertical rods and connected with the embedded parts in the shear wall 9. Two parallel slanting rods 1 are disposed between the horizontal frame 1 and the vertical rod 1 , and the two ends of the slanting rod 1 are respectively fixed to the horizontal frame 1 and one of the vertical rods, and the vertical rods are connected to each other. The slanting bar and the horizontal frame form a right triangle. The upper support frame 7 comprises a horizontal frame 2, the horizontal frame 2 is an inner hollow rectangular frame, the lower support frame is arranged in the end surface range of the rectangular frame, and two parallel vertical rods 2 are arranged below the horizontal frame 2, the vertical rod The top ends of the two are fixed perpendicularly to the horizontal frame 2, and the vertical rods 2 are respectively attached to the shear wall 9, and the connecting members are vertically passed through the vertical rods 2 and connected with the embedded parts in the shear wall 9 at the level Two parallel slanting rods 2 are arranged between the frame 2 and the vertical rod 2. The two ends of the slanting rod 2 are respectively fixed with the horizontal frame 2 and one of the vertical rods 2, and the vertical rods connected to each other are inclined. Rod 2 and horizontal frame 2 form a right triangle. A mounting plate is fixed to the top surface of the horizontal frame 1 and the top surface of the horizontal frame 2. The hydraulic cylinder 3 is fixed on the upper mounting plate 12 on the horizontal frame 2. The oil rod 8 is fixed on the lower mounting plate 14 of the horizontal frame 1. The horizontal frame 2 is provided with a flange connection base 5, and the flange connection base 5 is fixed on the upper mounting plate 12 on the horizontal frame 2. The bottom of the hydraulic cylinder 3 is fixed on the flange connection base 5, and the top of the oil rod 8 After being connected to the base 5 through the flange, it is inserted into the hydraulic cylinder 3. A mounting seat 13 is disposed above the horizontal frame 1. The mounting seat 13 is fixed to the lower mounting plate 14 of the horizontal frame 1. The bottom end of the oil rod 8 is inserted into the mounting seat 13 and fixed. The hydraulic cylinder 3 has another fixing manner, the top of which is fixed on the operating platform by a pin connection, the bottom is not fixed to the upper support frame 7, and the bottom end of the oil rod 8 is inserted into the mounting seat 13 and fixed, and the mounting seat 13 The top surface of the oil rod 8 is inserted into the mounting groove, and the locking groove 15 is disposed in the mounting groove, and the locking pin 15 passes through the oil rod 8 and the mounting seat 13 at the same time. The mounting plates are all made of rectangular square steel, and the lower mounting plate 12 is a rectangular square steel for the flange connection base 5 to be clamped. The upper mounting plate 12 is two rectangular squares because the oil rod 8 is to pass through. steel. The upper support frame 7 is larger in size than the lower support frame 11, and the upper support frame 7 can be regarded as two right-angled triangles if viewed from the vertical direction, and the lower support frame 11 and the oil rod 8 can be from the two The right angle triangles pass between them to form a jacking, and in order to further increase the stability, a plurality of ribs are also arranged in the lower support frame 11, and the ribs connect the two right-angled triangles in the lower support frame 11 to make the structure It is more stable, and at the same time, each of the right triangles of the upper and lower support frames 11 of the upper support frame 7 is provided with a plurality of ribs for connection, so that it is divided into a plurality of small triangles, so that stability is obtained strengthen. The structure of the support frame is designed in the above manner, which can ensure the stability during use, and the overall structure is simplified while satisfying the support, so that the operation process is simple, and the jacking support structure can effectively overcome the shortcomings of the existing formwork system, and has the bearing. Good, light weight, reliable connection and easy operation. Each support frame adopts a space triangular truss structure, which has a clear force and high load carrying capacity, and can withstand a vertical load of 80 tons at a single point.

The design of the present invention adopts a reverse thinking, first determining the number n of support points (n=P/F, P-unit total load) according to the maximum bearing capacity F of a mature and reliable jacking cylinder commonly used in the market. Take the Huarun East office building in Nanning as an example: the core tube is divided into six modules, the maximum module unit has a deadweight of 100 tons, various live loads of 80 tons, and the most unfavorable effect design value is 240 tons, which is currently widely used in the market. The maximum capacity of the reliable jacking cylinder is 80 tons (150MM bore), the number of support points is n=240/80=3, and each module adopts 4 jacking cylinders.

The control system also adopts the same design idea to select the most mature and reliable hydraulic control system in the market (the rated pressure p of the system meets the requirements of the maximum bearing capacity F of the cylinder, p=F/S, S-cylinder area), taking the Huarun East office building in Nanning as an example. : The rated pressure required by the system is: p=800000/70650=11.4Mpa. According to the market supply, there are system pressures of 15Mpa, 20Mpa, 25Mpa, 30Mpa, 35Mpa, etc. According to the economic comparison, the system with rated pressure of 25MPA can be used. Ensuring sufficient wealth and security is also very economical.

The structural design of the supporting cylinder adopts the steel truss structure of the 40-channel steel combination, which is simple in manufacture, clear and reliable, and ensures the strength requirement of the force and has good stability. At the same time, the cylinder is placed in the middle of the double channel steel to facilitate the protection of the cylinder, and it will not cause collision damage to the cylinder due to accidents during working or transportation.

The basic modulus of the cylinder and cylinder load-bearing structure adopts a height of 3 meters, so that the whole system can meet the construction requirements of almost all high-rise buildings. The specific layer height of specific targeted projects is increased according to the principle of priority number (for example, the design height of the Nanning China Resources East office building is the total height) 5 m), maximizing utilization of all structural components and main hydraulic components.

The connection between the cylinder and the support structure is connected by a pin shaft, which is convenient for improving the efficiency of installation and disassembly. The bearing structure of the cylinder is also provided with a square hole at the top, so that there is room for replacement due to accidental cylinder replacement, which is convenient for accidental damage. The cylinder replacement does not affect the construction period.

As shown in FIG. 5 to FIG. 8 , the jacking method of the jacking unit 20 includes the following steps:

The first step: preparation work, check whether the stacking materials of each layer meet the design requirements, the local material stacking code can not exceed the design requirements; at the same time, except for the upper and lower support frames and the building connection, no other parts (including the template) are connected and interfered with the building. .

Step 2: Remove the two 10.9-class M36 high-strength bolts that connect the upper support frame to the building and reconfirm that the jacking positions do not interfere with the building.

The third step: start the system to carry out the jacking operation as required, and pay attention to observe the system pressure and electrical abnormalities until the upper support frame and the entire frame reach the next connection site to stop.

Step 4: Connect the two 10.9 M36 high-strength bolts on the upper support frame. After checking all the connections, remove the two 10.9-class M36 high-strength bolts of the lower support frame and start the expansion of the jack-up cylinder to the connection position of the next layer. After the position, connect two 10.9 M36 high-strength bolts to complete the lifting of a standard layer.

The cylinder used in this scheme is a common cylinder with universal pressure and bore diameter. All of them are standard hydraulic components, which makes it convenient to maintain and replace any original parts. With special structural design, it is inconvenient to repair if it encounters cylinder failure. It can be easily replaced with any of its own cylinders and complete the jacking operation. The progress of the project is minimal. Due to the reverse design, all the components of the super high-rise construction can be used for ordinary high-rise building construction, and the utilization rate is maximized. Chemical. Moreover, there is no special requirement for the building structure, and construction completion does not leave any impact on the building structure. Standardization and optimization of all jacking system support structures under the premise of ensuring safety and reliability make the self-weight the lightest, easy to operate, high efficiency and economical.

The super-high-rise building core tube construction formwork system core tube external construction and protection adopts climbing mold, the core tube internal construction and protection adopts the steel platform jacking method, which is referred to as the inner top outer climbing (or outer climbing inner top) formwork system. It can climb and ascend at the same time as a whole, and can also independently climb and ascend according to the schedule of construction flow; it has the flexibility of climbing mold and the high bearing capacity of the top mold, and effectively solves the problem of super high-rise building construction. Frequently encountered local construction flow nodes are blocked. The traditional formwork system can only carry out the next step when the work of the blocked nodes is completed, which causes the work and construction period to lag; especially for the construction of the overhang truss layer during the construction of super high-rise buildings. The problem of climbing interference is well solved, and the problem of reducing the efficiency through the construction of the truss truss layer is effectively avoided.

The specific embodiments of the present invention have been described in detail with reference to the preferred embodiments of the present invention. All modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

A hydraulic jacking steel platform capable of integrally and partially lifting the outer formwork and the steel platform, comprising a three-dimensional structure climbing system (17) formed by sequentially arranging a plurality of climbing mold units (21), wherein the three-dimensional structure The structure is internally provided with a plurality of jacking systems (16) of juxtaposed lifting units (20), and both the climbing system (17) and the jacking system (16) are capable of vertical movement and the climbing system ( 17) Forming a working space between the steel structure and the steel bar to install and pour the concrete wall with the jacking system (16).
The hydraulic jacking steel platform capable of realizing integral and partial lifting of the outer formwork and the steel platform according to claim 1, wherein the climbing mold unit (21) is a climbing mold located on the same side wall of the three-dimensional structure. The units (21) are each connected to a jacking unit (20) close to the side wall and are capable of simultaneous or separate movement.
The hydraulic jacking steel platform capable of realizing integral and partial lifting of the outer formwork and the steel platform according to claim 2, wherein between the climbing mold unit (21) and the adjacent jacking unit (20) A working space for the steel structure and the steel bar installation and the pouring of the concrete wall is formed between the adjacent jacking units (20).
A hydraulic jacking steel platform capable of realizing integral and partial jacking of an outer formwork and a steel platform according to claim 3, characterized in that between the climbing mold unit (21) and the adjacent jacking unit (20) A channel plate (19) is disposed between adjacent jacking units (20).
A hydraulic jacking steel platform capable of realizing integral and partial jacking of an outer formwork and a steel platform according to any one of claims 1 to 4, characterized in that the jacking unit (20) comprises a lower support frame ( 11) and an upper support frame (7), and the upper support frame (7) is disposed directly above the lower support frame (11), and the upper support frame (7) is mounted with a hydraulic cylinder (3), a hydraulic cylinder (3) The oil rod (8) is arranged in the middle, and the bottom of the oil rod (8) passes through the upper support frame (7) and is fixed to the lower support frame (11). When the jack is raised, the lower support frame (11) or the upper support frame (7) is The fulcrum, the upper support frame (7) or the lower support frame (11) can be moved upward by the hydraulic cylinder (3) and the oil rod (8), and the lower support frame (11) can be inserted into the upper support frame (7) )in.
The hydraulic jacking steel platform capable of realizing the integral and partial lifting of the outer formwork and the steel platform according to claim 5, wherein the hydraulic cylinder (3) is composed of a plurality of sequentially connected coaxial cylinders. And the joint of the cylinder forms a seal, the lowermost cylinder is fixed with the upper support frame (7), the uppermost cylinder body is fixed with the operation platform, and the guide connection plate (1) is disposed at the joint of the cylinder body, The guiding connecting plates (1) at each joint are two pieces, and are symmetrically disposed on both sides of the cylindrical body and closely fixed, and the joint of the cylindrical body is located in the range of the guiding connecting plate (1).
The hydraulic jacking steel platform capable of realizing integral and partial lifting of the outer formwork and the steel platform according to claim 6, wherein the lower support frame (11) and the upper support frame (7) are provided with The connecting member is connected to the embedded member in the shear wall (9) after passing through the corresponding lower support frame (11) or upper support frame (7).
The hydraulic jacking steel platform capable of realizing the integral and partial lifting of the outer formwork and the steel platform according to claim 7, wherein the lower support frame (11) comprises a horizontal frame, and the horizontal frame is hollow inside. The rectangular frame is provided with two parallel vertical rods 1 below the horizontal frame. The top ends of the vertical bars are fixed perpendicularly to the horizontal frame, and the vertical bars are respectively attached to the shear wall (9). The connecting member is vertically connected to the embedded member in the shear wall (9) through the vertical rod, and two parallel inclined rods 1 are disposed between the horizontal frame 1 and the vertical rod 1 The two ends are respectively fixed with the horizontal frame 1 and one of the vertical rods, and the vertically connected rods 1 , the inclined rods 1 and the horizontal frame 1 form a right triangle.
The hydraulic jacking steel platform capable of realizing integral and partial lifting of the outer formwork and the steel platform according to claim 8, wherein the upper support frame (7) comprises a horizontal frame 2, and the horizontal frame 2 is hollow inside. a rectangular frame, the lower support frame is disposed in the end surface of the rectangular frame, and two parallel vertical rods 2 are disposed below the horizontal frame 2, and the top ends of the vertical bars 2 are fixed perpendicularly to the horizontal frame 2, and the vertical rods The two are attached to the shear wall (9), and the connecting member vertically passes through the vertical rod 2 and is connected with the embedded member in the shear wall (9), and is disposed between the horizontal frame 2 and the vertical rod 2 Two parallel slanting rods 2, the two ends of the slanting rod 2 are respectively fixed with the horizontal frame 2 and one of the vertical rods 2, and the connected vertical rod 2, the slant rod 2 and the horizontal frame 2 form a right triangle.
The hydraulic jacking steel platform capable of realizing the integral and partial lifting of the outer formwork and the steel platform according to claim 9, wherein the top surface of the horizontal frame 1 and the top surface of the horizontal frame 2 are fixedly mounted. The plate and the hydraulic cylinder (3) are fixed on the mounting plate on the horizontal frame 2, the oil rod (8) is fixed on the mounting plate of the horizontal frame 1, and the flange connection base (5) is arranged on the horizontal frame 2, The blue connecting base (5) is fixed on the mounting plate on the horizontal frame 2. The bottom of the hydraulic cylinder (3) is fixed on the flange connecting base (5), and the top of the oil rod (8) passes through the flange connecting base ( 5) Inserted into the hydraulic cylinder (3); the top of the horizontal frame 1 is provided with a mounting seat (13), the mounting seat (13) is fixed on the mounting plate of the horizontal frame, and the bottom end of the oil rod (8) Inserted into the mounting seat (13) and fixed; the top surface of the mounting seat (13) is concavely formed into a mounting groove, and the bottom end of the oil rod (8) is inserted into the mounting groove, and a locking pin is disposed in the mounting groove ( 15), the locking pin (15) passes through the oil rod (8) and the mounting seat (13) at the same time.