Concrete steel frame core tube structure system in high-rise building and construction method

Abstract

The invention discloses a concrete steel frame core tube structure system in a high-rise building and a construction method, and belongs to the field of building construction. The embedded part is installed on the core tube, the embedded part adopts the special-shaped connecting rib, the vertical connecting part is connected with the reinforcing mesh of the core tube, the horizontal connecting part is connected with the reinforcing steel bar of the floor support plate, and the inclined connecting part is used for connecting the vertical connecting part and the horizontal connecting part, so that the structural strength of the joint of the floor support plate and the core tube is improved. The connecting frame is installed on the core tube and used for installing the steel frame, the first connecting piece and the second connecting piece are arranged on the inner side and the outer side of the core tube respectively and connected with the steel frame through high-strength bolts, the shear resistance of the steel frame is ensured, and meanwhile the connecting steel frame and the second connecting piece are adopted for achieving automatic clamping and fixing.

Description

Technical Field

[0001] The present invention belongs to the field of high-rise building construction, and in particular relates to a concrete steel frame core tube structural system and a construction method in a high-rise building. Background Art

[0002] With the continuous development of society, the construction industry has been booming. The core tube steel frame structure is needed in the construction. The steel frame structure increases the strength of the building and increases the stability of the building. The core tube steel frame is also constantly improving.

[0003] However, during the construction of the steel frame core tube structure system, due to the heavy weight of the steel frame structure and the fact that it is generally completed by hoisting, the horizontal safety distance cannot be guaranteed during construction. This can easily cause the steel frame structure to collide with the core tube structure, causing irreparable damage to the core tube structure. At the same time, horizontal steel bars are generally used at the connection nodes between the core tube and the floor decking, and the structural strength and stability need to be further optimized. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that during the construction of the steel frame core tube structure system, there is no safe distance between the steel frame and the core tube structure, which easily leads to rigid collision; and the structural strength and stability of the connection node between the core tube and the floor deck need to be optimized.

[0005] In order to solve the above technical problems, the inventors have come up with the technical solution of the present invention through practice and summary. The present invention adopts the following technical solution:

[0006] A concrete steel frame core tube structural system for a high-rise building, comprising:

[0007] The core tube is equipped with embedded parts and connecting frames. The embedded parts include special-shaped connecting bars fixed to the core tube steel mesh. There are two groups of special-shaped connecting bars symmetrically distributed. Both special-shaped connecting bars include a vertical connecting part, an oblique connecting part and a horizontal connecting part. The horizontal connecting part is connected to the steel bars of the floor deck, the vertical connecting part is connected to the core tube steel mesh, and the oblique connecting part is connected between the horizontal connecting part and the vertical connecting part.

[0008] The steel frame is fixedly installed on the connecting frame, and the connecting frame includes a connecting member 1 distributed on the inner side of the core tube and a connecting member 2 distributed on the outer side of the core tube. The connecting member 1 and the connecting member 2 are connected by high-strength bolts. A plurality of parallel vertical plates are provided on the connecting member 2, and vertical grooves are provided on the vertical plates. The bottom of the vertical grooves is provided with oblique grooves gradually approaching the connecting member 2. A connecting steel frame is installed on the end of the steel frame, and a connecting ear plate is provided on the side of the connecting steel frame facing the connecting member 2. A connecting column and a clamping plate are installed on the connecting ear plate. The connecting column and the vertical groove and the oblique groove correspond to each other and are adapted to each other. The clamping plate and the connecting member 2 are clamped and adapted.

[0009] In a further improved solution, the number of vertical plates on the second connecting member is one more than the number of connecting ear plates on the connecting steel frame.

[0010] In a further improved solution, a snap-in groove is provided on the surface of the connecting member 2 in a direction perpendicular to the core tube, a guide groove 1 is provided on the side of the connecting ear plate facing the connecting member 2, a spring member is installed in the guide groove 1, the snap-in plate is installed in the guide groove 1 through the spring member, and the snap-in plate and the snap-in groove are adapted to each other.

[0011] In a further improved solution, a pressure body is provided on the side of the clamping plate away from the second connector, and pressure surfaces are symmetrically distributed on both sides of the pressure body, and the width of the two pressure surfaces on the side close to the second connector is smaller than the width of the side away from the second connector;

[0012] Two guide grooves 2 are provided on the side of the connecting ear plate, and a constraint plate is slidably fitted in the guide groove 2. The sides of the two constraint plates close to each other are both in contact with the pressure surface, and a constraint groove is provided on the opposite side of the vertical plate. The positions of the constraint plate and the constraint groove correspond and fit each other. The bottoms of the two constraint plates are both arranged obliquely downward along the side close to the connecting ear plate.

[0013] In a further improved solution, the connecting frame is divided into a middle connecting frame and a corner connecting frame, the connecting member 1 and the connecting member 2 of the middle connecting frame are both plate structures, and the connecting member 2 and the connecting member 3 of the corner connecting frame are both L-shaped plate structures.

[0014] In a further improved solution, an inner groove is provided on the outer side of the core tube, the horizontal connecting portion and the oblique connecting portion are located in the inner groove, and a restraining column is provided at the bottom of the inner groove, and the restraining column is used to horizontally restrain the floor deck;

[0015] The exposed portion of the oblique connection portion is one third to one half of its own length.

[0016] In a further improved solution, mounting plates are installed on both connector 1 and connector 2, and the side mounting plates are fixed to the side of the connector facing away from the core tube by high-strength bolts, and vertical retaining members are installed on the mounting plates corresponding to the upper and lower positions.

[0017] In a further improved solution, two symmetrically distributed retaining cylinders are provided on the mounting plate, locking bolts are installed on the retaining cylinders, and the vertical retaining members are inserted into the retaining cylinders and fixed by the locking bolts.

[0018] The construction method of the concrete steel frame core tube structure system in high-rise buildings includes:

[0019] Step 1: Core tube construction

[0020] Stake out and mark the foundation to obtain the construction boundary of the core tube formwork, tie the steel mesh of the core tube, and install the core tube formwork at the construction boundary of the core tube formwork. The core tube formwork includes inner and outer formwork and tension bolts connecting the inner and outer formwork;

[0021] During the binding of the steel mesh of the core tube, special-shaped connecting bars are installed at the corresponding positions according to the design elevation, and the inner groove template is installed at the corresponding position on the outer template. The oblique connection part of the special-shaped connecting bar is partially exposed in the inner groove template, and the position where the oblique connection part passes through the inner groove template is blocked;

[0022] Pour concrete into the inner and outer formwork of the core tube, and perform tamping and curing operations on it. After curing to the design strength, remove the inner and outer formwork and inner groove formwork;

[0023] Step 2: Install the connecting frame

[0024] The construction boundary of the first-floor connector 2 is obtained by staking out and marking out on the outer wall of the core tube. The construction boundary of the first-floor connector 1 is obtained by staking out and marking out on the outer wall of the core tube. The position of the high-strength bolts is determined based on the construction boundary of the first-floor connector 2 and the construction boundary of the first-floor connector 1. It is determined whether on-site drilling is required. If drilling is required, drilling is performed. If the position of the high-strength bolts coincides with the position of the tension bolt holes, drilling is not required.

[0025] After the first-floor connectors 1 and 2 are installed, the mounting plate is fixed to the first-floor connector with high-strength bolts, and the vertical retaining piece is installed in the retaining tube on the mounting plate and fixed with locking bolts. When the first-floor connector is installed, the position of the first-floor connector on this layer is determined by inserting the retaining tube of the upper layer on the outside of the vertical retaining piece and controlling the distance between the upper and lower mounting plates with the locking bolts. After determining the position of the first-floor connector on this layer, the position of the high-strength bolts and the position of the second-floor connector on this layer are determined, and finally the connectors are connected and fixed with high-strength bolts.

[0026] Step 3: Connect the steel frame and install

[0027] The connecting steel frame is hoisted to the set height by the hoisting equipment and a certain safety distance is maintained between the connecting steel frame and the core tube. The connecting steel frame is lowered and the connecting column is inserted from the top of the vertical slot. During the insertion, the constraint plate will be blocked and squeeze the pressure body inward. The pressure body compresses the spring part. When the connecting column descends to the bottom position of the oblique slot, the positions of the clamping plate and the clamping slot are aligned, and the positions of the constraint plate and the constraint slot are aligned. After the internal squeezing force of the constraint plate is released, the spring part will press the outside of the body, and the clamping plate and the clamping slot are clamped and adapted, and the clamping plate and the constraint slot are clamped and adapted. The connecting steel frame and the connecting frame are completed.

[0028] Step 4, Steel Frame Construction

[0029] The steel frame is hoisted and constructed, the steel frame is supported and connected with the steel frame with high-strength bolts;

[0030] Step 5: Floor decking construction

[0031] The floor decking is hoisted and constructed, one side of the floor decking is placed into the inner groove, and the floor decking is horizontally constrained by the constraint column. The horizontal connection part is connected to the steel bars of the floor decking, the bottom of the floor decking and the core tube node is sealed, and the concrete of the floor decking is poured.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The present invention installs embedded parts on the core tube. The embedded parts use special-shaped connecting bars. The vertical connecting parts are connected to the steel mesh of the core tube, the horizontal connecting parts are connected to the steel bars of the floor deck, and the oblique connecting parts are used to connect the vertical connecting parts and the horizontal connecting parts, thereby improving the structural strength of the connection between the floor deck and the core tube.

[0034] 2. The present invention installs a connecting frame on the core tube for installing the steel frame, and uses connecting piece 1 and connecting piece 2 to connect the steel frame on the inner and outer sides of the core tube respectively through high-strength bolts to ensure the shear resistance of the steel frame. At the same time, the steel frame and connecting piece 2 are connected to achieve automatic clamping and fixing. Since the steel frame structure is heavy, it is easy to cause collision with the core tube if it is too close to the core tube during hoisting and installation, which makes the core tube vulnerable to damage. The connecting column is used to realize the assembly operation of the installation at a relatively safe distance through the vertical groove and the oblique groove, and the clamping plate and connecting piece 2 are used to complete the stable adaptation of the structure by clamping and adapting, thereby ensuring the structural strength and stability.

[0035] 3. The number of vertical plates on the second connecting member of the present invention is two more than the number of connecting ear plates on the connecting steel frame, so that the connecting ear plates are located between the vertical plates. The restraining plates on the sides of the connecting ear plates are used to complete the retraction of the card plate into the guide groove when it enters the adaptation position to avoid interference when the connecting steel frame moves downward. When it reaches the predetermined position, the card plate extends outward under the action of the spring member, driving the restraining plate to move outward, so that it is adapted to be carded in the restraining groove. At the same time, the card plate is carded and adapted in the card groove, thereby ensuring the structural strength and stability of the connecting steel frame and the second connecting member after connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 For the present invention Figure 1 A partial enlarged view of point A in the middle;

[0038] Figure 3 A diagram showing the connection relationship between the connector 1 and the mounting plate of the present invention;

[0039] Figure 4 A top view of the second connecting member and the connecting steel frame of the present invention;

[0040] Figure 5 This is an overall structural diagram of the connector 2 of the present invention;

[0041] Figure 6 This is the overall structural diagram of the connecting steel frame of the present invention;

[0042] Figure 7 is a cross-sectional view of the connecting steel frame of the present invention;

[0043] Figure 8 It is a top view of the core tube and steel frame of the present invention. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0045] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0046] Example 1

[0047] like Figures 1 to 8 As shown, a concrete steel frame core tube structural system for a high-rise building includes:

[0048] The core tube 10 is provided with embedded parts 11 and a connecting frame 12. The embedded parts 11 include special-shaped connecting bars 13 fixed to the steel mesh of the core tube 10. The special-shaped connecting bars 13 are symmetrically distributed in two groups. The two special-shaped connecting bars 13 each include a vertical connecting portion 131, an oblique connecting portion 132, and a horizontal connecting portion 133. The horizontal connecting portion 133 is connected to the steel bars of the floor deck, the vertical connecting portion 131 is connected to the steel mesh of the core tube 10, and the oblique connecting portion 132 is connected between the horizontal connecting portion 133 and the vertical connecting portion 131.

[0049] During implementation, when the steel mesh of the core tube 10 is tied, the special-shaped connecting bars 13 are tied to the steel mesh of the core tube 10, and are connected to the steel mesh by the vertical connecting part 131, and the horizontal connecting part 133 is connected to the steel bars of the floor decking, so that the floor decking can form a whole with the core tube 10 after the concrete is cast in place, and the oblique connecting part 132 plays the role of enhancing the strength and stability of the connection node after being connected to the steel bars of the floor decking.

[0050] The steel frame 20 is fixedly mounted on the connecting frame 12. The connecting frame 12 includes a connecting piece 121 distributed on the inner side of the core tube 10 and a connecting piece 2 122 distributed on the outer side of the core tube 10. The connecting piece 121 and the connecting piece 2 122 are connected by high-strength bolts. A plurality of parallel vertical plates 123 are provided on the connecting piece 2 122. A vertical groove 124 is provided on the vertical plate 123. The bottom of the vertical groove 124 is provided with a gradually approaching connecting piece. The oblique groove 125 of the second connecting piece 122, a connecting steel frame 126 is installed at the end of the steel frame 20, and a connecting ear plate 127 is provided on the side of the connecting steel frame 126 facing the second connecting piece 122. A connecting column 128 and a clamping plate 129 are installed on the connecting ear plate 127. The clamping plate 129 is located above the connecting column 128. The connecting column 128 and the vertical groove 124 and the oblique groove 125 correspond to each other and are adapted to each other. The clamping plate 129 and the second connecting piece 122 are clamped and adapted.

[0051] When the steel frame 20 is being installed, especially when the connecting steel frame 126 is being hoisted, a certain safe construction distance needs to be maintained between the connecting steel frame 126 and the core tube 10 due to the high-altitude hoisting operation. However, the safe construction distance cannot be too large, as it will easily increase the complexity of the alignment operation, nor can it be too close, as it will easily cause a rigid collision. Therefore, a certain safe construction distance is maintained between the connecting column 128 and the core tube 10, so that the connecting column 128 is lowered through the vertical groove 124 and then moves downward along the oblique groove 125, thereby driving the connecting steel frame 126 to automatically approach the connecting piece 2 122. When reaching the bottom of the oblique groove 125, the clamping plate 129 and the connecting piece 2 122 are clamped and adapted to realize the front, back, up, down, left and right freedom constraints of the connecting steel frame 126 and the connecting piece 2 122, thereby ensuring the stability of the structural assembly. After the concrete of the core tube 10 reaches the designed strength, the connector 1 121 and the connector 2 122 are connected by high-strength bolts. The position of the high-strength bolts can be the position of the tension bolt holes during the construction of the core tube 10, or the holes opened on site later.

[0052] Example 2

[0053] In Example 1, Figures 1 to 7 As shown, the number of vertical plates 123 on the second connecting member 122 is one more than the number of connecting ear plates 127 on the connecting steel frame 126 .

[0054] The surface of the second connecting member 122 is provided with a snap-in groove 1221 along the direction perpendicular to the core tube 10, and the side of the connecting ear plate 127 facing the second connecting member 122 is provided with a guide groove 1222, and a spring member 1223 is installed in the guide groove 1222. The snap-in plate 129 is installed in the guide groove 1222 through the spring member 1223, and the snap-in plate 129 and the snap-in groove 1221 are adapted to each other.

[0055] A pressure body 1291 is provided on the side of the clamping plate 129 away from the second connector 122. Pressure surfaces are symmetrically distributed on both sides of the pressure body 1291. The width of the two pressure surfaces close to the second connector 122 is smaller than the width of the side away from the second connector 122.

[0056] Two guide grooves 1271 are provided on the side of the connecting ear plate 127, and a constraint plate 1272 is slidably fitted in the guide groove 1271. The sides of the two constraint plates 1272 close to each other are both in contact with the pressure surface, and a constraint groove 1273 is provided on the opposite side of the vertical plate 123. The constraint plates 1272 and the constraint groove 1273 are positioned correspondingly and adapted to each other, and the bottoms of the two constraint plates 1272 are both arranged obliquely downward along the side close to the connecting ear plate 127.

[0057] Before the connecting column 128 descends and enters the vertical groove 124, the connecting ear plate 127 is kept between the two vertical plates 124. By lowering the connecting steel frame 128, the bottom of the constraint plate 1272 is blocked and moves into the guide groove 2 1271. At the same time, the constraint plate 1272 is squeezed to move the pressure body 1291 into the guide groove 1 1222 and compress the spring member 1223. When the connecting column 128 descends and enters the bottom of the oblique groove 125, the constraint plate 1272 and the constraint groove 1273 correspond in position, and the clamping groove 1273 and the clamping plate 1272 correspond in position. At the same time, the spring member 1223 will drive the clamping plate 1272 to move outward and clamp the clamping groove 1273. At the same time, the constraint plate 1272 and the constraint groove 1273 are clamped and adapted. The connecting steel frame 126 and the connecting member 2 122 are connected and the structure after connection is stable and reliable.

[0058] Example 3

[0059] In Example 2, Figure 8 As shown, the connecting frame 12 is divided into a middle connecting frame 12 and a corner connecting frame 12. The connecting piece 1 121 and the connecting piece 2 122 of the middle connecting frame 12 are both plate structures, and the connecting piece 2 122 and the connecting piece 3 122 of the corner connecting frame 12 are both L-shaped plate structures.

[0060] like Figure 2 As shown, an inner groove 1274 is provided on the outer side of the core tube 10, and the horizontal connection part 133 and the oblique connection part 132 are located in the inner groove 1274. A connecting column 128 is provided at the bottom of the inner groove 1274, and the connecting column 128 is used to horizontally constrain the floor deck;

[0061] The exposed portion of the oblique connecting portion 132 is one third to one half of its own length.

[0062] During the actual construction, after the side of the floor deck is inserted into the inner groove 1274, the floor deck is horizontally constrained by the connecting column 128, and then the horizontal connecting part 133 is used to connect with the steel bars of the floor deck, and the concrete of the floor deck is poured. After the concrete is poured, the structural strength of the floor deck and the core tube 10 is effectively enhanced and optimized.

[0063] Example 4

[0064] In Example 3, Figure 1 and Figure 3 As shown, both the connector 1 121 and the connector 2 122 are installed with mounting plates 1275, which are fixed to the side of the connector facing away from the core tube 10 by high-strength bolts, and vertical retaining members 1276 are installed on the mounting plates 1275 corresponding to the upper and lower positions.

[0065] Two symmetrically distributed retaining cylinders 1277 are provided on the mounting plate 1275 , and locking bolts 1278 are installed on the retaining cylinders 1277 . The vertical retaining member 1276 is inserted into the retaining cylinders 1277 and fixed by the locking bolts 1278 .

[0066] When installing connector 1 121 and connector 2 122, connector 1 or connector 2 distributed up and down are made to correspond to each other in the upper and lower positions through vertical retaining member 1276 and retaining tube 1277, ensuring that connector 1 121 and connector 2 122 correspond to each other in the positions, thereby ensuring that the position consistency and structural performance of the steel frame 20 meet the design requirements as much as possible.

[0067] like Figures 1 to 8 As shown in FIG, the construction method of the concrete steel frame core tube structure system in a high-rise building includes:

[0068] Step 1: Construction of core tube 10

[0069] Stake out and mark the foundation to obtain the construction boundary of the core tube 10 template, tie the steel mesh of the core tube 10, and install the core tube 10 template at the construction boundary of the core tube template. The core tube 10 template includes an inner template and an outer template and tension bolts connecting the inner template and the outer template;

[0070] During the binding of the steel mesh of the core tube 10, the special-shaped connecting reinforcement 13 is installed at the corresponding position according to the design elevation, and the inner groove 1274 template is installed at the corresponding position on the outer template. The oblique connecting portion of the special-shaped connecting reinforcement 13 is partially exposed in the inner groove 1274 template, and the position where the oblique connecting portion 132 passes through the inner groove 1274 template is blocked;

[0071] Pour concrete into the inner and outer formwork of the core tube 10, and perform tamping and curing operations on it. After curing to meet the design strength, the inner and outer formwork and the inner groove 1274 formwork are removed;

[0072] Step 2: Install the connecting frame 12

[0073] The construction boundary of the first-floor connector 122 is obtained by staking out and marking out on the outer wall of the core tube 10. The construction boundary of the first-floor connector 121 is obtained by staking out and marking out on the outer wall of the core tube 10. The position of the high-strength bolts is determined based on the construction boundary of the first-floor connector 122 and the construction boundary of the first-floor connector 121. It is determined whether on-site drilling is required. If drilling is required, drilling is performed. If the position of the high-strength bolts coincides with the position of the tension bolt holes, drilling is not required.

[0074] After the first-floor connector 121 and the second-floor connector 122 are installed, the mounting plate 1275 is fixed to the first-floor connector 121 with high-strength bolts, and the vertical retaining member 1276 is installed in the retaining tube 1277 on the mounting plate 1275 and fixed with the locking bolt 1278. When installing the first-floor connector 121, the position of the first-floor connector 121 is determined by inserting the upper-floor retaining tube 1277 into the outer side of the vertical retaining member 1276 and controlling the distance between the upper and lower mounting plates 1275 with the locking bolt 1278. After determining the position of the first-floor connector 121, the position of the high-strength bolts and the position of the second-floor connector 122 are determined, and finally the connectors are connected and fixed with the high-strength bolts.

[0075] Step 3: Connect the steel frame 126 and install

[0076] The connecting steel frame 126 is hoisted to the set height by the hoisting equipment and a certain safety distance is maintained between it and the core tube 10. By lowering the connecting steel frame 126, the connecting column 128 is inserted into the top of the vertical slot 124. At the same time, the restraining plate 129 is blocked and presses the pressure body 1291 inward. The pressure body 1291 compresses the spring member 1223. When the connecting column 128 descends to the bottom position of the oblique slot 128, the positions of the clamping plate 129 and the clamping slot 1221 correspond to each other, and the positions of the restraining plate 129 and the restraining slot 1221 correspond to each other. After the internal squeezing force of the restraining plate 129 is released, the spring member 1223 pushes the pressure body 1291 outward, and the clamping plate 129 and the clamping slot 1221 are clamped and adapted, and the restraining plate 129 and the restraining slot 1221 are clamped and adapted, and the connecting steel frame 126 and the connecting frame 12 are completed.

[0077] Step 4: Construction of steel frame 20

[0078] The steel frame 20 is hoisted and constructed, and the steel frame 20 is supported and fixed to the connecting steel frame 126 with high-strength bolts;

[0079] Step 5: Floor decking construction

[0080] The floor decking is hoisted and installed, and one side of the floor decking is placed into the inner groove 1274. The floor decking is horizontally constrained by the constraint column 1279, and the horizontal connection part 123 is connected to the steel bars of the floor decking. The bottom of the node between the floor decking and the core tube 10 is sealed, and the concrete of the floor decking is poured.

[0081] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The replacement may be a replacement of a portion of a structure, device, or method step, or it may be a complete technical solution. Any equivalent replacement or modification based on the technical solution and inventive concept of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A concrete steel frame core tube structural system in a high-rise building, characterized in that: include: A core tube (10) is provided with an embedded part (11) and a connecting frame (12). The embedded part (11) includes a special-shaped connecting rib (13) fixed on the steel mesh of the core tube (10). The special-shaped connecting rib (13) is symmetrically distributed in two groups. The two special-shaped connecting ribs (13) each include a vertical connecting portion (131), an oblique connecting portion (132) and a horizontal connecting portion (133). The horizontal connecting portion (133) is connected to the steel bars of the floor deck, the vertical connecting portion (131) is connected to the steel mesh of the core tube (10), and the oblique connecting portion (132) is connected between the horizontal connecting portion (133) and the vertical connecting portion (131). The steel frame (20) is fixedly mounted on the connecting frame (12). The connecting frame (12) includes a connecting member 1 (121) distributed on the inner side of the core tube (10) and a connecting member 2 (122) distributed on the outer side of the core tube (10). The connecting member 1 (121) and the connecting member 2 (122) are connected by high-strength bolts. A plurality of parallel vertical plates (123) are provided on the connecting member 2 (122). The vertical plates (123) are provided with vertical grooves (124). The bottom of the vertical grooves (124) is provided with An oblique groove (125) is provided which gradually approaches the second connecting member (122). A connecting steel frame (126) is installed at the end of the steel frame (20). A connecting ear plate (127) is provided on the side of the connecting steel frame (126) facing the second connecting member (122). A connecting column (128) and a clamping plate (129) are installed on the connecting ear plate (127). The connecting column (128) and the vertical groove (124) and the oblique groove (125) are corresponding in position and mutually adapted. The clamping plate (129) and the second connecting member (122) are clamped and adapted.

2. The concrete steel frame core tube structural system for high-rise buildings according to claim 1, characterized in that: The number of vertical plates (123) on the second connecting member (122) is one more than the number of connecting ear plates (127) on the connecting steel frame (126).

3. The concrete steel frame core tube structural system in a high-rise building according to claim 2, characterized in that: A snap-fitting groove (1221) is provided on the surface of the second connecting member (122) in a direction perpendicular to the core tube (10), a guide groove (1222) is provided on the side of the connecting ear plate (127) facing the second connecting member (122), a spring member (1223) is installed in the guide groove (1222), the snap-fitting plate (129) is installed in the guide groove (1222) via the spring member (1223), and the snap-fitting plate (129) and the snap-fitting groove (1221) are adapted to each other.

4. The concrete steel frame core tube structural system for high-rise buildings according to claim 3, characterized in that: A pressure body (1291) is provided on the side of the clamping plate (129) away from the second connector (122), and pressure surfaces are symmetrically distributed on both sides of the pressure body (1291), and the width of the two pressure surfaces close to the second connector (122) is smaller than the width of the side away from the second connector (122); Two guide grooves (1271) are provided on the side of the connecting ear plate (127), and a constraint plate (1272) is slidably fitted in the guide groove (1271). The sides of the two constraint plates (1272) close to each other are both fitted on the pressure surface, and a constraint groove (1273) is provided on the opposite side of the vertical plate (123). The constraint plates (1272) and the constraint grooves (1273) are positioned correspondingly and adapted to each other, and the bottoms of the two constraint plates (1272) are both arranged obliquely downward along the side close to the connecting ear plate (127).

5. The concrete steel frame core tube structural system in a high-rise building according to claim 3, characterized in that: The connecting frame (12) is divided into a middle connecting frame (12) and a corner connecting frame (12). The connecting piece 1 (121) and the connecting piece 2 (122) of the middle connecting frame (12) are both plate-type structures, and the connecting piece 2 (122) and the connecting piece 3 (122) of the corner connecting frame (12) are both L-shaped plate-type structures.

6. The concrete steel frame core tube structural system in a high-rise building according to claim 4, characterized in that: An inner groove (1274) is provided on the outer side of the core tube (10), the horizontal connecting portion (133) and the oblique connecting portion (132) are located in the inner groove (1274), and a restraining column (1279) is provided at the bottom of the inner groove (1274), and the restraining column (1279) is used to horizontally restrain the floor deck; The exposed portion of the oblique connecting portion (132) is one third to one half of its own length.

7. The concrete steel frame core tube structural system for high-rise buildings according to claim 4, characterized in that: A mounting plate (1275) is installed on the connector (121), and the mounting plate (1275) is fixed to the side of the connector facing away from the core tube (10) by high-strength bolts. Vertical retaining members (1276) are installed on the mounting plates (1275) corresponding to the upper and lower positions.

8. The concrete steel frame core tube structural system for high-rise buildings according to claim 7, characterized in that: Two symmetrically distributed retaining cylinders (1277) are provided on the mounting plate (1275), and locking bolts (1278) are installed on the retaining cylinders (1277). The vertical retaining member (1276) is inserted into the retaining cylinders (1277) and fixed by the locking bolts (1278).

9. A construction method for a concrete steel frame core tube structure system in a high-rise building, characterized in that: The construction steps are as follows: Step 1: Construction of the core tube (10) The core tube (10) template construction boundary is obtained by staking out and marking on the foundation, the steel mesh of the core tube (10) is tied, and the core tube (10) template is installed at the core tube (10) template construction boundary, wherein the core tube (10) template includes an inner template and an outer template and tension bolts connecting the inner template and the outer template; During the binding of the steel mesh of the core tube (10), a special-shaped connecting rib (13) is installed at a corresponding position according to the design elevation, and an inner groove (1274) template is installed at a corresponding position on the outer template. The oblique connecting portion (132) of the special-shaped connecting rib (13) is partially exposed in the inner groove (1274) template, and the position where the oblique connecting portion (132) passes through the inner groove (1274) template is blocked; Concrete is poured into the inner and outer formworks of the core tube (10), and vibrated and cured. After curing to the design strength, the inner and outer formworks and the inner groove (1274) formwork are removed; Step 2: Install the connecting frame (12) The construction boundary of the first-layer connecting piece 2 (122) is obtained by staking out and marking out on the outer wall of the core tube (10), and the construction boundary of the first-layer connecting piece 1 (121) is obtained by staking out and marking out on the outer wall of the core tube (10). The position of the high-strength bolt is determined according to the construction boundary of the first-layer connecting piece 2 (122) and the construction boundary of the first-layer connecting piece 1 (121), and it is judged whether on-site hole drilling is required. When hole drilling is required, the hole drilling is performed. When the position of the high-strength bolt and the position of the tension bolt hole coincide with each other, no hole drilling is required. After the first-layer connector 1 (121) and the second connector 2 (122) are installed, the mounting plate (1275) is fixed on the connector 1 (121) by high-strength bolts, and the vertical retaining member (1276) is installed in the retaining tube (1277) on the mounting plate (1275) and fixed by the locking bolt (1278). When the upper-layer connector 1 (121) is installed, the upper-layer retaining tube (1277) is inserted into the outer side of the vertical retaining member (1276), and the distance between the upper and lower mounting plates (1275) is controlled by the locking bolt (1278) to determine the position of the connector 1 (121) of the layer. After determining the position of the connector 1 (121) of the layer, the position of the high-strength bolts and the position of the connector 2 (122) of the layer are determined, and finally the high-strength bolts are used to connect and fix them. Step 3: Connect the steel frame (126) and install The connecting steel frame (126) is hoisted to a set height by a hoisting device and a certain safety distance is maintained between the connecting steel frame (126) and the core tube (10). The connecting column (128) is inserted into the top of the vertical slot (124) by lowering the connecting steel frame (126). When the connecting steel frame (126) is lowered, the restraining plate (129) is blocked and pressurized inwardly. The pressurized body (1291) compresses the spring member (1223). When the connecting column (128) descends to the bottom position of the oblique slot (125), the connecting column (128) is pushed into the bottom position of the oblique slot (125). When the clamping plate (129) and the clamping groove (1221) are in correspondence with each other, and the restraining plate (129) and the restraining groove (1221) are in correspondence with each other, and after the internal squeezing force of the restraining plate (129) is released, the spring member (1223) pushes the pressure body (1291) outward, and the clamping plate (129) and the clamping groove (1221) are clamped and adapted, and the restraining plate (129) and the oblique groove (1273) are clamped and adapted, and the steel frame (126) and the connecting frame (12) are connected and assembled. Step 4: Steel frame (20) construction The steel frame (20) is hoisted and constructed, and the steel frame (20) is supported and fixed to the connecting steel frame (126) through high-strength bolts; Step 5: Floor decking construction The floor deck is hoisted and installed, one side of the floor deck is placed into the inner groove (1274), and the floor deck is horizontally constrained by the restraining column (1279). The horizontal connection part (123) is connected to the steel bars of the floor deck, the bottom of the node between the floor deck and the core tube (10) is sealed, and the concrete of the floor deck is poured.

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