CN109898848B - A climbing integral steel platform formwork system and its construction method - Google Patents

Abstract

The invention discloses a climbing type integral steel platform formwork system and a construction method thereof, aiming at the problems of low construction efficiency and large manpower and capital investment of the existing steel platform formwork system. The device comprises a steel platform, a supporting system, a scaffold system and a climbing system, wherein a connecting rod of a stable reinforcing system is horizontally arranged between two adjacent climbing columns or/and structural steel columns; the connecting rod is detachably connected with the climbing upright post through an upright post connector; the connecting rod is detachably connected with the structural steel column through a steel column connector; the height of each climbing upright post or structural steel column is more than or equal to two times of the layer height of the structural layer. The construction method comprises the following steps: and installing a structural steel column on the poured core tube, detachably connecting two adjacent climbing columns and/or structural steel columns after the steel platform formwork system climbs one structural layer, fixing the steel platform formwork system after the steel platform formwork system climbs the second structural layer to the core tube, and pouring concrete of the two structural layers layer by layer.

Description

A climbing integral steel platform formwork system and its construction method

Technical field

The present invention relates to the technical field of building construction, to a high-rise and super-high-rise building core tube construction equipment and a construction method, and in particular to a climbing integral steel platform formwork system and a construction method thereof.

Background technique

At present, super high-rise core tubes are widely constructed using steel column frames to alternately support hydraulic climbing integral steel platform formwork systems. The patent number is ZL201210147907.1, and the authorized publication number is CN102677889. The name is steel column frames to alternately support the integral climbing steel platform formwork. Frame system and construction method. The formwork system integrates the steel platform, formwork system, scaffolding system, support system and climbing system in the working area to form a fully enclosed construction operating environment, which can ensure the construction quality of the core tube to the greatest extent. , speed up the construction progress, ensure construction safety, and are widely used in the field of super high-rise building construction.

With the rapid development of our country's economy, super high-rise buildings have entered a period of construction prosperity, which has put forward higher requirements for the construction equipment of super high-rise buildings. The existing steel column frame alternately supports hydraulic climbing integral steel platform formwork system, which can generally only be used once. The construction efficiency is low when one layer is climbed, especially when it comes to core tube structures with many structural steel columns. The formwork system that is climbed one layer at a time increases the segmentation of structural steel columns and increases the welding workload, which not only affects the construction efficiency, but also increases the welding workload. And increased investment in manpower and capital.

Contents of the invention

The existing steel column frame alternating support hydraulic climbing integral steel platform formwork system generally can only climb one layer at a time, which results in low construction efficiency and increases manpower and capital investment. The purpose of the present invention is to provide a climbing integral steel platform formwork system and a construction method thereof. The climbing columns, structural steel columns and connecting rods are detachably connected, which effectively reduces the workload of segmenting and welding structural steel columns. , using the lifting method of raising the height of two structural layers at one time, it can realize the core concrete pouring construction of two structural layers at one time, which improves work efficiency and effectively reduces the construction period and manpower loss caused by climbing construction, which is economical The benefits are significant.

The technical solution adopted by the present invention to solve the technical problem is: a climbing integral steel platform formwork system, which includes a steel platform, a support system, a scaffolding system and a climbing system. The steel platform extends along the cross section of the core tube; The support system includes a plurality of canister supports, which are fixed to the bottom of the steel platform. During construction, the canister supports are supported in the reserved holes of the core tube shear wall through corbels located at the bottom. ; The scaffold system is hung from the bottom of the steel platform, and it includes an inner cylinder frame and an outer cylinder frame; the climbing system includes climbing boots, a hydraulic system and a climbing column arranged on the steel platform, and the climbing system The column is vertically fixed to the concrete pouring surface of the core shear wall, the climbing boots are provided on the steel platform and are fixedly connected to it, and the climbing boots are connected to the hydraulic system; it also includes a stabilizer Reinforcement system, the stability reinforcement system includes: a plurality of connecting rods, horizontally arranged between the two adjacent climbing columns or/and the structural steel columns of the core tube; a plurality of column connectors, one end of which is fixed Connected to the connecting rod, the other end is detachably connected to the climbing hole of the climbing column; a plurality of steel column connectors, one end of the connecting rod is detachable to the structural steel column through the steel column connector type connection; the height of each climbing column or structural steel column is greater than or equal to twice the layer height of the core tube structure, and at least two sides of each climbing column or structural steel column are connected to each other through the connecting rod. The adjacent climbing columns or structural steel columns are connected so that the climbing columns and structural steel columns located at the top of the poured core are connected as a whole through the connecting rods.

Preferably, the column connector includes: at least one limiting rod 1, vertically fixed to the bottom end of the climbing hole of the climbing column; two limiting plates arranged on both sides of the limiting rod 1. , wherein the limiting plate located outside the climbing column is fixedly connected to the connecting rod; and a plurality of connecting bolts are located on both sides of the limiting rod one and clamp and fix the two limiting plates.

Preferably, two limiting rods are provided at intervals in the climbing hole of the climbing column. The two limiting rods are respectively arranged close to the side walls of the climbing hole. The distance between the two limiting rods can be The telescopic pole that accommodates the climbing boots is put in.

Preferably, the thickness of the limiting rod 1 is the same as the thickness of the side wall of the climbing column.

Preferably, the steel column connector includes a positioning clamp, two connecting plates and a plurality of connecting bolts. The positioning clamp includes an L-shaped end plate spaced apart from the side of the structural steel column, arranged in parallel and Two side plates vertically fixed to both sides of the L-shaped end plate, namely side plate one provided along the entire length of one right-angled side of the L-shaped end plate and side plate two located at the end of the other right-angled side, The other ends of the two side plates are fixed to the sides of the structural steel columns, and the two limiting rods are vertically fixed to the inner right-angled edge of the L-shaped end plate; the two connecting plates are arranged on the L-shaped end plate. Both sides of the end plate are clamped and fixed by a plurality of connecting bolts, wherein the connecting plate located outside the structural steel column is fixedly connected to the connecting rod.

Preferably, the positioning clamp further includes a clamping plate arranged perpendicularly to the L-shaped end plate, one end of the clamping plate is vertically fixed to the side plate and forms a snap end, and the connecting plate is L-shaped. shape, and the corner portion of the connecting plate is snap-fitted with the buckle end.

Preferably, the thickness of the second limiting rod and the L-shaped end plate are the same.

Preferably, it also includes a concrete construction system, which includes formwork installed on both sides of the core tube shear wall to be poured and a plurality of balance pourers installed on the top of the core tube shear wall to be poured. The pouring device includes a storage hopper with a trapezoidal longitudinal section and at least a pair of distribution pipes. The expanding end of the storage hopper is a concrete pouring port. The tapering end of the storage hopper is connected to at least a pair of distribution pipes. At least A pair of the distribution pipes are symmetrically arranged on both sides of the core tube shear steel plate.

In addition, the present invention also provides a construction method of a climbing integral steel platform formwork system. The steps are as follows:

S1: Install the climbing integral steel platform formwork system on the top of the poured n-layer core tube. The heights of the climbing columns of the climbing system and the structural steel columns and shear steel plates of the core tube are greater than or equal to the structural layer. twice as high;

S2: Hoist the structural steel columns of the core tube and vertically fix them to the tops of the n-layer core tube structural steel columns;

S3: Using the climbing column as the reaction point, start the hydraulic system to make the upper and lower climbing boots climb alternately, driving the climbing integral steel platform formwork system to climb upward to the height of the first structural layer, which is located at the level to be On the top of the poured n+1-layer core tube, two adjacent structural steel columns and/or climbing columns are detachably connected as a whole through connecting rods;

S4: Make the climbing-type integral steel platform formwork system climb up to the height of the second structural layer, that is, to be located on the top of the n+2 layer core tube to be poured, so that the climbing-type integral steel platform formwork system The bottom of the system's cylinder support is fixed in the reserved hole of the poured core cylinder through corbels;

S5: Loosen the detachable connection between the climbing column and the structural steel column, and loosen the connection between the climbing column and the top of the n-layer core tube. Use the steel platform as the reaction point to make the climbing column climb to The top of the n+2-layer core tube to be poured is fixed on the steel platform by upper climbing boots;

S6: Hoist and fix the shear steel plates and structural steel beams of the core tube, tie the steel bars of the n+1 layer core tube to be poured, install the formwork of the n+1 layer core tube to be poured, and pour the n+1 layer core tube. of concrete;

S7: Bind the steel bars of the n+2-layer core tube to be poured, install the formwork of the n+2-layer core tube to be poured, and pour the concrete of the n+2-layer core tube;

S8: Repeat the above steps S2 to S7 until the core concrete pouring construction is completed;

Among them, n is an integer greater than or equal to 3.

Preferably, in step S3, at least two sides of each climbing column or structural steel column are connected to the adjacent climbing column or structural steel column through the connecting rod, and the connecting rod is connected to the adjacent climbing column or structural steel column. The climbing columns are connected by column connector bolts. The two limit plates of the column connector are installed on both sides of the limit rod in the climbing hole of the climbing column and are clamped and fixed by a plurality of connecting bolts. ; The connecting rod and the structural steel column are bolted through a steel column connector. The positioning clamp of the steel column connector includes an L-shaped end plate spaced apart from the side of the structural steel column, which is arranged in parallel and Two side plates vertically fixed to both sides of the L-shaped end plate, namely side plate one provided along the entire length of one right-angled side of the L-shaped end plate and side plate two located at the end of the other right-angled side, The other ends of the two side plates are fixed to the sides of the structural steel columns, and the two limiting rods are vertically fixed to the inner right-angled edge of the L-shaped end plate; the two connecting plates are installed on the The two sides of the L-shaped end plate are clamped and fixed by a plurality of connecting bolts.

The effect of the present invention is:

1. A climbing integral steel platform formwork system of the present invention. The heights of the structural steel columns of the core tube and the climbing columns of the climbing system are both greater than or equal to twice the structural layer height. They are located on the concrete pouring completion surface of the core tube shear wall. The upper structural steel columns and climbing columns are detachably connected as a whole through multiple horizontal connecting rods to provide stable support for the climbing construction of the second consecutive layer of the climbing system, thus providing two consecutive layers of core shear walls. The high-level concrete pouring construction of the structure provides operating space, which improves construction efficiency and shortens the construction period; moreover, the climbing columns, structural steel columns and connecting rods are detachable connections, and the disassembled connecting rods can be recycled repeatedly. , high material turnover utilization rate, effectively reducing the workload of structural steel column segmentation and welding, and reducing project costs. Especially for the construction of core tube structures with a large amount of steel structures, a climbing integral steel platform of the present invention is used The formwork system implements the construction of the main structure and can achieve more significant economic benefits.

2. The invented construction method of the climbing integral steel platform formwork system adopts the lifting method of lifting two structural layers at a time, and hoists structural steel columns with twice the structural layer height above the poured core tube. and welding work; after the steel column frame alternately supports the overall steel platform formwork system to climb one structural level, two adjacent climbing columns and/or structural steel columns are detachably connected through connecting rods, so that the climbing columns and structural steel columns Connected into an overall stable reinforcement system to enhance the stability of the climbing system; steel column frames alternately support the overall steel platform formwork system after climbing to the second structural level and fixed to the core shear wall, and then poured layer by layer Two structural layers of concrete. Compared with the traditional one-layer, one-climbing integral steel platform formwork system, the construction method of the climbing integral steel platform formwork system of the present invention has at least the following advantages:

1. Using a climbing type integral steel platform formwork system, the height of two structural layers can be raised at one time, and the core tube concrete pouring construction of two structural layer heights can be realized at one time. The steel column frame alternately supports the integral steel platform formwork. The system reduces the number of climbs by about half, effectively reducing the construction period and manpower losses caused by the climbing construction of the steel column frame alternately supporting the overall steel platform formwork system;

2. The core concrete of the two structural layer heights is poured together, which can effectively reduce the lateral segmentation of the core shear steel plate, reduce the workload of hoisting and welding the shear steel plate layer by layer, and effectively reduce the cost of welding equipment and consumables. At the same time, it can save at least about half of the steel structure construction period, speed up the construction efficiency, especially for the construction of core tube structures with large steel structures, reduce the investment of manpower and capital, and achieve the purpose of high efficiency and economy;

3. The concrete at two structural levels is poured together, which speeds up the binding of steel bars and reduces the use of reinforcing bars or connectors, which is beneficial to structural safety and saving consumables.

Description of the drawings

Figure 1 is a schematic diagram of an embodiment of the stability strengthening system of a climbing integral steel platform formwork system according to the present invention;

Figures 2 to 9 are schematic diagrams of each step of the construction method of a climbing integral steel platform formwork system of the present invention;

Figure 10 is a schematic structural diagram of a column connector according to an embodiment of the present invention;

Figure 11 is a cross-sectional view along line a-a of Figure 10;

Figure 12 is a schematic structural diagram of a steel column connector according to an embodiment of the present invention;

Figure 13 is a b-b cross-sectional view of Figure 12;

Figure 14 is a top view of a balanced pourer according to an embodiment of the present invention;

Figure 15 is a schematic diagram of the positional relationship between the balance pourer and the core shear wall according to an embodiment of the present invention;

Figure 16 is a schematic structural diagram of a cable-chain type symmetrical overpass according to an embodiment of the present invention.

The numbers in the figure are as follows:

Core tube shear wall 1; structural steel column 2; shear steel plate 3; structural steel beam 4;

A climbing integral steel platform formwork system 100;

Steel platform 10; barrel support 21; corbels 22; outer barrel frame 31; inner barrel frame 32; walkway plate 33; cable chain 34; climbing column 41; climbing hole 41a; climbing boots 42; hydraulic system 43; connecting rod 60 ; Column connector 70; Limit rod one 71; Limit plate 72; Connecting bolt one 73; Steel column connector 80; L-shaped end plate 81; Side plate one 82; Side plate two 83; Clamp plate 84; Connecting plate 86; connecting bolt 2 87; limit rod 2 88; template 90; balance pourer 91; storage hopper 91a; distribution pipe 91b.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the invention will become more apparent from the following description and claims. It should be noted that the accompanying drawings are in a very simplified form and use imprecise proportions, and are only used to conveniently and clearly assist in explaining the embodiments of the present invention. For the convenience of description, the "upper" and "lower" mentioned below are consistent with the upward and downward directions in the drawings, but this cannot be a limitation of the technical solution of the present invention.

A climbing integral steel platform formwork system 100 of the present invention is explained with reference to Figures 1 to 16, which includes a steel platform 10, a support system, a scaffolding system and a climbing system; the core shear wall 1 is equipped with structural steel columns 2 and shear steel plates 3. The adjacent core tube shear walls 1 are fixedly connected through structural steel beams 4; the steel platform 10 extending along the core tube cross-section includes multiple steel platform units, and the steel platform units are connected by low-density large The spaced through steel beams form an integral steel platform 10. Patterned steel plates are laid on the steel platform units to form a construction operation platform and heavy-load storage yard. Grid plates are freely erected between the steel platform units to transmit steel bars and serve as pedestrian walkways. There are holes corresponding to the position of the core shear wall 1; the support system includes a plurality of barrel supports 21. The barrel supports 21 are fixed on the bottom of the steel platform 10. In the construction state, the barrel supports 21 pass through the corbels located at the bottom. 22 is supported in the reserved hole of the core tube shear wall 1, as a support for a climbing integral steel platform formwork system 100 under construction status, and transmits the force of the steel platform 10 to the core tube shear wall 1; The scaffolding system is hung from the bottom of the steel platform 10 and includes an inner barrel frame 32 and an outer barrel frame 31. The scaffolding system provides an operating surface for construction workers. In addition, the barrel frame support 21 of the support system can also serve as the inner barrel frame 32 or the outer barrel frame. Cylinder 3 1; the climbing system includes a climbing shoe 42, a hydraulic system 43 and a climbing column 41 arranged on the steel platform 10. The climbing column 41 is vertically fixed on the completed concrete pouring surface of the core shear wall 1, and the climbing shoe 42 is provided On the steel platform 10 and fixedly connected to it, and the climbing boots 42 are connected to the hydraulic system 43; the above-mentioned climbing integral steel platform formwork system 100 also includes a stability strengthening system, which includes: a plurality of connecting rods 60, horizontal Set between two adjacent climbing columns 41 or/and the structural steel column 2 of the core tube; multiple column connectors 70, one end of which is fixed to the connecting rod 60, and the other end is connected to the climbing hole 4 1a of the climbing column 41 Detachable connection; multiple steel column connectors 80, one end of the connecting rod 60 is detachably connected to the structural steel column 2 through the steel column connector 80; the height of each climbing column 41 or structural steel column 2 is greater than or equal to two times the height of the structural layer, at least two sides of each climbing column 41 or structural steel column 2 are connected to the adjacent climbing column 41 or structural steel column 2 through connecting rods 60, so that the climbing column located on the top of the poured core tube 41 and the structural steel column 2 are connected as a whole through the connecting rod 60 to ensure the stability of the climbing system during the climbing process.

In the climbing integral steel platform formwork system 100 of the present invention, the heights of the structural steel columns 2 of the core tube and the climbing columns 41 of the climbing system are both greater than or equal to twice the structural layer height, and are located at the core tube shear wall 1. Concrete pouring The structural steel column 2 and the climbing column 41 above the completion surface are detachably connected as a whole through a plurality of horizontally arranged connecting rods 60 to provide stable support for the continuous second-layer climbing construction of the climbing system. Thus, the core shear is The concrete pouring construction of the continuous two-story structure of the force wall 1 provides operation space, which improves the construction efficiency and shortens the construction period; moreover, the climbing column 41, the structural steel column 2 and the connecting rod 60 are detachably connected. The disassembled connecting rod 60 can be recycled repeatedly, and the material turnover utilization rate is high, which effectively reduces the workload of 2 segmentation and welding of structural steel columns, and reduces the project cost, especially for the construction of core tube structures with a large amount of steel structure. Significant economic benefits can be achieved by using the climbing integral steel platform formwork system 100 of the present invention to implement the construction of the main structure.

As shown in Figures 10 and 11, the column connector 70 includes at least one limiting rod 71, two limiting plates 72 and a plurality of connecting bolts 73. The limiting rod 71 is vertically fixed to the climbing column 41. At the bottom of the climbing hole 41a, the distance between the limit rod one 71 and the side wall of the climbing hole 41a can accommodate the telescopic rod of the climbing shoe 42; two limit plates 72 are symmetrically arranged on both sides of the limit rod one 71. And it is clamped and fixed by a plurality of connecting bolts 73, in which the limiting plate 72 located outside the climbing column 41 is fixedly connected to the connecting rod 60. One end of the connecting rod 60 can be detachably connected to the climbing column 41 through the column connector 70, which is convenient and quick to disassemble and assemble. The position of the connecting rod 60 can be flexibly adjusted as the core tube construction progresses, thereby improving work efficiency.

Please continue to refer to Figures 10 and 11. In this embodiment, three connecting bolts 73 are used to fix the two limiting plates 72. The three connecting bolts 73 are respectively located on both sides of the limiting rod 71. The three connecting points enhance the The connection strength of the two limiting plates 72 makes the connection between the connecting rod 60 and the climbing column 41 stronger.

More preferably, two limiting rods 71 are provided at intervals in the climbing hole 41a of the climbing column 41, and the two limiting rods 71 are respectively arranged close to the side walls of the climbing hole 41a, so that the distance between the two limiting rods 71 can be The telescopic rod that accommodates the climbing boots 42 is put in. At the same time, in order to ensure the stability and reliability of the connection between the column structures in the system, at least two sides of each climbing column 41 are connected to the connecting rod 60. Therefore, one climbing column At least four limit rods 71 are installed on the column 41 so that the installation interface of the column connector 70 can be selected. The connecting rod 60 can be fixed on one of the limit rods 71 according to the specific location of the site, which is beneficial to the position of the connecting rod 60 Adjustment.

The above-mentioned limiting plate 72 has an L-shaped cross-section. A plurality of bolt holes are located at the corners of the limiting plate 72. The end of the connecting rod 60 is welded and fixed to the right-angled edge of the bottom of the limiting plate 72. The L-shaped shape design can improve the limit. The rigidity of the position plate 72 prevents the corner portion provided with multiple bolt holes from being deformed and damaged under pressure.

The fixed position of the above-mentioned limit rod 71 needs to be determined according to the installation position and design calculation position of the climbing column 41, and the welding construction of the limit hole must be completed at the factory or on site before hoisting the climbing column 41. The limit hole 1 of this embodiment 71 is approximately located in the climbing hole 41a at the elevation of the first structural layer of the climbing column 41.

The thickness of the above-mentioned limit rod 171 is the same as the thickness of the side wall of the climbing column 41, so that the two limit plates 72 after clamping closely offset the limit rod 171, which can prevent the two limit plates 72 from loosening.

As shown in Figures 12 and 13, the steel column connector 80 includes a positioning clamp, two connecting plates 86 and a plurality of connecting bolts 287. The positioning clamp includes an L-shaped end plate spaced apart from the side of the structural steel column 2. 81. Two side plates arranged in parallel and vertically fixed to both sides of the L-shaped end plate 81 are respectively a side plate 82 arranged along the length of one right-angled side of the L-shaped end plate 81 and a side plate 82 located at the end of the other right-angled side. The second side plate 83, and the second limiting rod 88 vertically fixed to the inner right-angled edge of the L-shaped end plate 81, the other ends of the two side plates are fixed to the side of the structural steel column 2; two connecting plates 86 are provided On both sides of the L-shaped end plate 81, it is clamped and fixed by a plurality of connecting bolts 287, in which the connecting plate 86 located outside the structural steel column 2 is fixedly connected to the connecting rod 60. The arrangement of the positioning clamp is equivalent to installing a connecting hole with a limiting rod on the side of the structural steel column 2. A connecting plate 86 can be inserted into the gap formed between the L-shaped end plate 81 and the side of the structural steel column 2, and connects with the other side. A connecting plate 86 fixedly connected with the connecting rod 60 is connected by bolts, so that the connecting rod 60 can be detachably connected to the structural steel column 2, which is convenient and quick to disassemble and assemble, and can flexibly adjust the connecting rod 60 as the core tube construction progresses. s position.

Please continue to refer to Figure 12. The positioning clamp also includes a clamping plate 84 arranged perpendicularly to the L-shaped end plate 81. One end of the clamping plate 84 is vertically fixed to the side plate 82 and forms a snap end. The connecting plate 86 is L-shaped. Moreover, the corner portion of the connecting plate 86 is engaged with the buckle end, making the connection between the connecting plate 86 and the structural steel column 2 more stable and reliable.

In this embodiment, three connecting bolts 87 are used to fix the two connecting plates 86. The three connecting bolts 87 are respectively located on both sides of the limiting rod 288. The three connecting points enhance the connection strength of the two connecting plates 86, so that The connection between the connecting rod 60 and the structural steel column 2 is stronger.

The thickness of the two limiting rods 88 and the L-shaped end plates 81 are the same. The clamped two L-shaped end plates 81 closely offset the two limiting rods 88, which can prevent the two L-shaped end plates 81 from loosening.

As shown in Figures 14 and 15, a climbing integral steel platform formwork system 100 of the present invention also includes a concrete construction system. The concrete construction system includes formwork 90 installed on both sides of the core shear wall to be poured and A plurality of balance pourers 91 are arranged on the top of the core shear wall to be poured. The balance pourer 91 includes a storage hopper 91a with a trapezoidal longitudinal section. The gradually expanding end of the storage hopper 91a is a concrete pouring opening. The storage hopper 91a has an opening. The tapered end is connected to at least one pair of distribution pipes 91b. At least one pair of distribution pipes 91b is symmetrically arranged on both sides of the core shear steel plate 3. When the core shear wall 1 is poured, at least one pair of distribution pipes 91b can Concrete is evenly injected into both sides of the shear steel plate 3, ensuring the construction quality of the core shear wall 1.

The above-mentioned scaffolding system includes an inner cylinder frame 32, an outer cylinder frame 31 and a plurality of cable chain-type symmetrical flip bridges connected between the inner and outer cylinder frames. Figure 16 shows the cable chains arranged between adjacent outer cylinder frames 31. Taking the specific structure of a type symmetrical overturn bridge as an example, the cable chain type symmetrical overturn bridge includes a pair of walkway plates 33 arranged between two adjacent outer cylinder frames 31, and two pairs of cable chains 34. One end of the walkway plate 33 is connected to The outer cylinder frame 31 is hinged, and the other end of the walkway plate 33 is connected to the outer cylinder frame 31 through a pair of cable chains 34 provided on both sides of the end. During construction, the pair of walkway plates 33 are unfolded and placed to provide working space for construction workers. And facilitate its passage; in the climbing state, the two pairs of cable chains 34 are retracted, and the pair of walkway plates 33 are flipped upward and fixed close to the side walls of the outer cylinder frame 31, making the operation flexible and convenient. Similarly, the structure of the cable chain type symmetrical flip-over bridge arranged between two adjacent inner cylinder frames 32 and between adjacent inner and outer cylinder frames is the same and will not be described again.

The construction method of a climbing integral steel platform formwork system 100 of the present invention is explained in conjunction with Figures 2 to 9. The specific steps are as follows:

S1: As shown in Figure 2, steel column frames are installed on the top of the poured n-layer core tube to alternately support the overall steel platform formwork system 100. The formwork 90 is fixed on both sides of the poured core tube shear wall 1 through connectors. , the heights of the climbing columns 41 of the climbing system and the structural steel columns 2 and shear steel plates 3 of the core shear wall 1 are both greater than or equal to twice the structural floor height;

S2: As shown in Figure 3, hoist the structural steel column 2 of the core tube shear wall 1 and vertically fix it to the top of the n-layer core tube structural steel column 2;

S3: As shown in Figure 4, with the climbing column 41 as the reaction point, start the hydraulic system 43 to make the upper and lower climbing shoes 42 climb alternately, driving the steel column frame to alternately support the overall steel platform formwork system 100 to climb upward for the first time The structural layer height is located at the top of the n+1 layer core tube to be poured. As shown in Figure 5, two adjacent structural steel columns 2 and/or climbing columns 41 are detachably connected into one through connecting rods 60. overall;

S4: As shown in Figure 6, make the steel column cylinders alternately support the overall steel platform formwork system 100 and climb up to the second structural layer height, that is, located on the top of the n+2 layer core tube to be poured, so that the steel column cylinders The bottom of the cylinder support 21 that alternately supports the integral steel platform formwork system 100 is fixed in the reserved hole of the poured core cylinder through the corbels 22;

S5: As shown in Figure 7, loosen the detachable connection between the climbing column 41 and the structural steel column 2, and loosen the connection between the climbing column 41 and the top of the n-layer core tube. Use the steel platform 10 as the reaction point to make the climbing column 41 Climb to the top of the n+2-layer core tube to be poured, and fix it on the steel platform 10 with climbing boots 42;

S6: As shown in Figure 7, hoist and fix the shear steel plate 3 and structural steel beam 4 of the core tube. As shown in Figure 8, tie the steel bars of the n+1 core tube to be poured, and install the n+ to be poured. The formwork of the 1st layer core tube is 9 0, and the concrete of the n+1 layer core tube is poured;

S7: As shown in Figure 9, tie the steel bars of the n+2-layer core tube to be poured, install the formwork 90 of the n+2-layer core tube to be poured, and pour the concrete of the n+2-layer core tube;

S8: Repeat the above steps S2 to S7 until the core concrete pouring construction is completed.

Among them, n is an integer greater than or equal to 3.

A construction method of a climbing integral steel platform formwork system invented, which adopts a lifting method of raising the height of two structural layers at a time, and implements twice the structural layer height on the core shear wall 1 that has been poured Hoisting and welding of structural steel columns 2; steel column frames alternately support the overall steel platform formwork system 100. After climbing one structural level, two adjacent climbing columns 41 and/or are detachably connected through connecting rods 60 The structural steel column 2 connects the climbing column 41 and the structural steel column 2 into an overall stable strengthening system to enhance the stability of the climbing system; the steel column frame alternately supports the overall steel platform formwork system 10 0 to climb the second structure The layer height is then fixed to the poured core shear wall 1, and then the concrete of the two structural layers is poured layer by layer. Compared with the traditional one-layer, one-climbing integral steel platform formwork system, the construction method of the climbing integral steel platform formwork system 100 of the present invention has at least the following advantages:

1. The climbing-type integral steel platform formwork system 100 can be used to raise the height of two structural layers at one time, and can realize the core concrete pouring construction of two structural layers at one time, which can reduce the number of climbs by about half, effectively Reduce the construction period and manpower losses caused by the 100-degree climbing construction of the steel column frame alternately supporting the overall steel platform formwork system;

2. The core tube concrete with two structural layer heights is poured and constructed together, which can effectively reduce the lateral segmentation of the core tube shear steel plate 3, reduce the workload of hoisting and welding the shear steel plate 3 layer by layer, and effectively reduce the need for welding equipment and The investment in consumables can also save at least about half of the steel structure construction period, speeding up the construction efficiency, especially for the construction of core tube structures with large steel structures, reducing the investment in manpower and capital, and achieving the goal of high efficiency and economy;

3. The concrete at two structural levels is poured together, which speeds up the binding of steel bars and reduces the use of reinforcing bars or connectors, which is beneficial to structural safety and saving consumables.

In the step S3, at least two sides of each climbing column 41 or structural steel column 2 are connected to the adjacent climbing column 41 or structural steel column 2 through connecting rods 60, and the connecting rods 60 and the climbing columns 41 are connected by The column connector 70 is bolted, and the two limiting plates 72 of the column connector 70 are installed on both sides of the limiting rod 71 in the climbing hole 41a of the climbing column 41, and are clamped and fixed by a plurality of connecting bolts 73; connecting rod 60 is bolted to the structural steel column 2 through a steel column connector 80. The positioning clamp of the steel column connector 80 includes an L-shaped end plate 81 spaced apart from the side of the structural steel column 2, which is arranged parallel and vertically fixed to the L The two side plates on both sides of the L-shaped end plate 81 are respectively a side plate 82 arranged along one right-angled side of the L-shaped end plate 81 and a side plate two 83 located at the end of the other right-angled edge. The other end is fixed to the side of the structural steel column 2, and is vertically fixed to the limit rod 288 on the inner right-angled edge of the L-shaped end plate 81; two connecting plates 86 are installed on both sides of the L-shaped end plate 81. And clamped and fixed by multiple connecting bolts 287.

The above description is only a description of the preferred embodiments of the present invention, and does not limit the scope of the present invention in any way. Any changes or modifications made by those of ordinary skill in the field of the present invention based on the above disclosure shall fall within the scope of the claims.

Claims (8)

1. A climbing integral steel platform formwork system, including a steel platform, a support system, a scaffolding system and a climbing system. The steel platform extends along the cross-section of the core tube; the support system includes multiple cylinder supports, so The canister support is fixed to the bottom of the steel platform. Under construction, the canister support is supported in the reserved hole of the core tube shear wall through the corbels located at the bottom; the scaffolding system is hung from the The bottom of the steel platform includes an inner cylinder frame and an outer cylinder frame; the climbing system includes climbing boots, a hydraulic system and climbing columns arranged on the steel platform, and the climbing columns are vertically fixed to the core shear force The concrete pouring completed surface of the wall, the climbing boots are arranged on the steel platform and are fixedly connected to it, and the climbing boots are connected to the hydraulic system; it is characterized in that it also includes a stability reinforcement system, and the stability reinforcement system The system includes: A plurality of connecting rods are arranged horizontally between two adjacent climbing columns or/and the structural steel columns of the core tube. The column connectors include: at least one limiting rod 1, fixed vertically At the bottom end of the climbing hole of the climbing column; two limiting plates are provided on both sides of the limiting rod one, where the limiting plate located outside the climbing column is fixedly connected to the connecting rod; and a plurality of connecting bolts one, respectively located on both sides of the limit rod one and clamping and fixing the two limit plates; A plurality of column connectors, one end of which is fixedly connected to the connecting rod, and the other end is detachably connected to the climbing hole of the climbing column; A plurality of steel column connectors, one end of the connecting rod is detachably connected to the structural steel column through the steel column connector, the steel column connector includes a positioning clamp, two connecting plates and a plurality of Connecting bolt two, the positioning clamp includes an L-shaped end plate spaced apart from the side of the structural steel column, two side plates arranged in parallel and vertically fixed to both sides of the L-shaped end plate, respectively along the The L-shaped end plate has one right-angled side and a side plate two that is located at the end of the other right-angled side. The other ends of the two side plates are fixed to the side of the structural steel column and vertically fixed. Two limiting rods on the inner right-angled edge of the L-shaped end plate; two connecting plates are provided on both sides of the L-shaped end plate and are clamped and fixed by a plurality of connecting bolts, wherein The connecting plate on the outside of the structural steel column is fixedly connected to the connecting rod; The heights of the climbing columns of the climbing system and the structural steel columns and shear steel plates of the core tube are both greater than twice the height of the structural layers. At least two sides of each of the climbing columns or structural steel columns pass through the connecting rods. Connect with the adjacent climbing columns or structural steel columns, so that the climbing columns and structural steel columns located at the top of the poured core tube are connected as a whole through the connecting rods. 2. A climbing integral steel platform formwork system according to claim 1, characterized in that: two limiting rods are provided at intervals in the climbing hole of the climbing column, and the two limiting rods are respectively They are arranged close to the side wall of the climbing hole, and the spacing between the two limiting rods can accommodate the insertion of the telescopic rod of the climbing shoe. 3. A climbing integral steel platform formwork system according to claim 1, characterized in that the thickness of the limiting rod 1 is the same as the thickness of the side wall of the climbing column. 4. A climbing type integral steel platform formwork system according to claim 1, characterized in that: the positioning clamp further includes a clamping plate arranged perpendicularly to the L-shaped end plate, one end of the clamping plate It is vertically fixed to the side plate and forms a buckle end. The connecting plate is L-shaped, and the corner part of the connecting plate is buckled with the buckle end. 5. A climbing integral steel platform formwork system according to claim 1, characterized in that the thickness of the second limiting rod and the L-shaped end plate are the same. 6. A climbing type integral steel platform formwork system according to claim 1, characterized in that: it also includes a concrete construction system, and the concrete construction system includes formwork installed on both sides of the core tube shear wall to be poured. And a plurality of balance pourers arranged on the top of the core tube shear wall to be poured. The balance pourer includes a storage hopper with a trapezoidal longitudinal section and at least a pair of distribution pipes. One end of the storage hopper's opening is gradually expanded for concrete. The pouring port, the tapered end of the opening of the storage hopper is connected to at least a pair of distribution pipes, and at least a pair of the distribution pipes are symmetrically arranged on both sides of the core tube shear steel plate. 7. The construction method of a climbing integral steel platform formwork system according to any one of claims 1 to 6, the steps are as follows: S1: Install the climbing integral steel platform formwork system on the top of the poured n-layer core tube. The heights of the climbing columns of the climbing system and the structural steel columns and shear steel plates of the core tube are both greater than the height of the structural layers. twice; S2: Hoist the structural steel columns of the core tube and vertically fix them to the tops of the n-layer core tube structural steel columns; S3: Using the climbing column as the reaction point, start the hydraulic system to make the upper and lower climbing boots climb alternately, driving the climbing integral steel platform formwork system to climb upward to the height of the first structural layer, which is located at the level to be waited for. On the top of the poured n+1-layer core tube, two adjacent structural steel columns and/or climbing columns are detachably connected as a whole through connecting rods; S4: Make the climbing integral steel platform formwork system climb up to the height of the second structural layer, that is, to be located on the top of the n+2 layer core tube to be poured, so that the climbing integral steel platform formwork system The bottom of the system's cylinder support is fixed in the reserved hole of the poured core cylinder through corbels; S5: Loosen the detachable connection between the climbing column and the structural steel column, and loosen the connection between the climbing column and the top of the n-layer core tube. Use the steel platform as the reaction point to make the climbing column climb to The top of the n+2-layer core tube to be poured is fixed on the steel platform by upper climbing boots; S6: Hoist and fix the shear steel plates and structural steel beams of the core tube, tie the steel bars of the n+1 layer core tube to be poured, install the formwork of the n+1 layer core tube to be poured, and pour the n+1 layer core tube. of concrete; S7: Bind the steel bars of the n+2-layer core tube to be poured, install the formwork of the n+2-layer core tube to be poured, and pour the concrete of the n+2-layer core tube; S8: Repeat the above steps S2 to S7 until the core concrete pouring construction is completed; Among them, n is an integer greater than or equal to 3. 8. The construction method of a climbing integral steel platform formwork system according to claim 7, characterized in that: in the step S3, at least two sides of each climbing column or structural steel column pass through the The connecting rod is connected to the adjacent climbing column or structural steel column. The connecting rod and the climbing column are bolted through a column connector. Two limiting plates of the column connector are installed on the Both sides of the limit rod in the climbing hole of the climbing column are clamped and fixed by a plurality of connecting bolts; the connecting rod and the structural steel column are connected by steel column connector bolts, and the steel column is connected The positioning clamp of the device includes an L-shaped end plate spaced apart from the side of the structural steel column, and two side plates arranged parallel and vertically fixed to both sides of the L-shaped end plate, respectively along the L-shaped end plate. One right-angled side of the board is provided with the entire length of the side plate one and the side plate two is located at the end of the other right-angled side. The other ends of the two side plates are fixed to the side of the structural steel column and vertically fixed to the structural steel column. The two connecting plates are installed on both sides of the L-shaped end plate and are clamped and fixed by a plurality of connecting bolts.