Direct-buried type section steel joint of steel-concrete composite structure and construction method of direct-buried type section steel joint

Abstract

The invention provides a directly-buried type section steel joint of a steel-concrete composite structure and a construction method, and relates to the technical field of constructional engineering. The directly-buried type profile steel joint of the steel-concrete combined structure comprises I-shaped steel, an end socket rib plate is arranged on the lower end face of the I-shaped steel, a supporting structure is arranged at the lower end of the end socket rib plate and comprises a top plate, a first ball is rotationally connected to the center of the lower end face of the top plate, and a second threaded rod is fixedly connected to the lower end face of the first ball. The lower portion of the outer side wall of the second threaded rod is sleeved with a first threaded sleeve in a threaded mode, and the lower end of the first threaded sleeve is sleeved with a first threaded rod in a threaded mode. Whether the top plate is in a horizontal state or not is detected through two gradienter glass tubes, four second threaded sleeves are rotated, the four second threaded sleeves enable four third threaded rods and four fourth threaded rods to move towards the inner sides or the outer sides of the four second threaded sleeves correspondingly, and therefore the levelness of the top plate is adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering, and in particular to a direct-buried steel section node of a steel-concrete composite structure and a construction method. Background Art

[0002] In bridge construction, especially on the towers of cable-stayed bridges and suspension bridges, direct-buried steel nodes are used to connect the towers to the superstructure. Their design can effectively reduce the difficulty of high-altitude operations, improve construction efficiency, and ensure the bearing capacity and reliability of the nodes. Direct-buried steel nodes can significantly improve the overall stiffness and bearing capacity of the structure in high-rise steel-concrete composite structures. Due to their good seismic performance, such nodes are often used in high-rise buildings to improve the stability and safety of the buildings.

[0003] There are still some problems in the use of direct-buried steel nodes in existing steel-concrete composite structures. The positioning and elevation control of steel sections are key difficulties in construction. High-precision measurement and control are required during the construction process. Insufficient construction accuracy may lead to node failure and affect the stability and safety of the overall structure. Therefore, technical personnel in this field provide a direct-buried steel node and construction method for a steel-concrete composite structure to solve the problems raised in the above background technology. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the present invention provides a direct-buried steel node and construction method for a steel-concrete composite structure, which solves the problem that the positioning and elevation control of the steel are key difficulties in construction, high-precision measurement and control are required during the construction process, and insufficient construction accuracy may cause node failure, affecting the stability and safety of the overall structure.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the present invention is implemented through the following technical solutions: a direct-buried steel node of a steel-concrete composite structure, comprising an I-beam, a head rib plate is provided on the lower end surface of the I-beam, a support structure is provided on the lower end of the head rib plate, the support structure comprises a top plate, a first sphere is rotatably connected to the center of the lower end surface of the top plate, the lower end surface of the first sphere is fixedly connected, and a second threaded rod is provided, a first threaded sleeve is threadedly sleeved at the lower part of the outer wall of the second threaded rod, a first threaded rod is threadedly sleeved at the lower end of the first threaded sleeve, the threads of the first threaded rod and the second threaded rod are arranged oppositely, and the lower end of the first threaded rod is fixedly connected to the bottom plate;

[0008] The upper end surface of the bottom plate is arranged in a rectangular shape and is rotatably connected to a second sphere, and a third threaded rod is fixedly connected to the center of the upper end surfaces of the four second spheres, and a second threaded sleeve is threadedly sleeved at the upper part of the outer side wall of the four third threaded rods, and a fourth threaded rod is threadedly sleeved on the upper end of the four second threaded sleeves, and the threads of the four third threaded rods and the four fourth threaded rods are oppositely arranged, and the upper end surfaces of the four fourth threaded rods are fixedly connected to the third sphere, and the four third spheres are rotatably connected to the four diagonals of the lower end surface of the top plate respectively, and connecting parts are provided on the front and rear end surfaces of the bottom plate and the two side walls of the bottom plate.

[0009] Preferably, a level glass tube is fixedly connected to one side of the center of the front end surface of the top plate and to the front of the center of one side wall of the top plate.

[0010] Preferably, a first storage groove is opened at one side of the center of the upper end surface of the top plate, and a piezoelectric generating plate is arranged inside the first storage groove. A second groove is opened at the other side of the center of the upper end surface of the top plate, and a battery module, a level sensor and an integrated chip board are arranged inside the second groove.

[0011] Preferably, the connecting member includes two second threaded columns, which are respectively arranged on both sides of the center of one end surface of the base plate, a base plate is sleeved on the outside of the two second threaded columns, and a plurality of extension rods are provided on one end surface of the base plate, and two second nuts are threadedly sleeved on the ends of the two second threaded columns.

[0012] Preferably, four first threaded columns are arranged in a rectangular shape at four diagonal positions on the upper end surface of the top plate, and the four first threaded columns all pass through the lower end surface of the head rib plate to the upper end of the head rib plate, and the ends are all threadedly sleeved with first nuts.

[0013] A method for constructing a direct-buried steel section node of a steel-concrete composite structure comprises the following steps:

[0014] S1. Disassembly and carrying, by removing the sixteen second nuts, and then removing the four base plates, it is easy to separate the four base plates from the bottom plate for easy carrying;

[0015] S2. Horizontal adjustment: when in use, place the bottom plate on a concrete platform, use two level glass tubes to detect whether the top plate is in a horizontal state, and by rotating the four second threaded sleeves, the four second threaded sleeves move the four third threaded rods and the four fourth threaded rods to the inside or outside of the four second threaded sleeves, respectively, so as to adjust the horizontality of the top plate;

[0016] S3. Height adjustment, using two level sensors to detect whether the two top plates are in a horizontal state, by rotating the first threaded sleeve, the first threaded rod and the second threaded rod are moved to the inside or outside of the first threaded sleeve, thereby adjusting the distance between the bottom plate and the top plate, facilitating height adjustment, so that the two I-beams are always in the same horizontal state;

[0017] S4. The connecting parts are installed by respectively sleeved the four base plates on the outside of the eight second threaded columns, and then sleeved the sixteen second nuts on the outside of the eight second threaded columns, so as to facilitate fixing the four base plates on the front and rear end surfaces and the two side walls of the bottom plate. When pouring concrete, the contact between the base plates and the concrete can be improved, thereby improving the connectivity.

[0018] (III) Beneficial effects

[0019] The present invention provides a direct-buried steel node of a steel-concrete composite structure and a construction method thereof. The invention has the following beneficial effects:

[0020] 1. In the present invention, when in use, the bottom plate is placed on a concrete platform, and two level glass tubes are used to detect whether the top plate is in a horizontal state. By rotating the four second threaded sleeves, the four second threaded sleeves move the four third threaded rods and the four fourth threaded rods to the inside or outside of the four second threaded sleeves respectively, thereby adjusting the horizontality of the top plate.

[0021] 2. In the present invention, two level sensors are used to detect whether the two top plates are in a horizontal state. By rotating the first threaded sleeve, the first threaded rod and the second threaded rod are moved to the inside or outside of the first threaded sleeve, thereby adjusting the distance between the bottom plate and the top plate, which is convenient for adjusting the height, so that the two I-beams are always in the same horizontal state.

[0022] 3. In the present invention, four base plates are respectively sleeved on the outside of eight second threaded columns, and then sixteen second nuts are respectively sleeved on the outside of the eight second threaded columns, so as to facilitate fixing the four base plates on the front and rear end surfaces and the two side walls of the bottom plate. When pouring concrete, the contact between the base plates and the concrete can be improved, thereby improving the connectivity.

[0023] 4. In the present invention, before use, the sixteen second nuts are removed and then the four base plates are removed, so that the four base plates and the bottom plate can be separated and carried easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A perspective view of the present invention;

[0025] Figure 2 is a three-dimensional cross-sectional view of the present invention;

[0026] Figure 3 is a side view of the present invention;

[0027] Figure 4 It is a three-dimensional exploded view of the connecting piece of the present invention;

[0028] Figure 5 is a front cross-sectional view of a first threaded sleeve of the present invention;

[0029] Figure 6 for Figure 3 A magnified schematic diagram of center A.

[0030] Among them, 1. I-beam; 2. supporting structure; 201. top plate; 202. first storage tank; 203. piezoelectric power generation plate; 204. second groove; 205. battery module; 206. bottom plate; 207. first threaded rod; 208. first threaded sleeve; 209. second threaded rod; 210. first sphere; 211. connecting piece; 2111. substrate; 2112. extension rod; 2113. second nut; 2114. second threaded column; 212. second sphere; 213. third threaded rod; 214. second threaded sleeve; 215. fourth threaded rod; 216. third sphere; 217. level sensor; 218. integrated chip board; 3. level glass tube; 4. head rib plate; 5. first threaded column; 6. first nut. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1:

[0033] like Figure 1-6 As shown, an embodiment of the present invention provides a directly buried steel node of a steel-concrete composite structure, including an I-beam 1, a head rib 4 is provided on the lower end surface of the I-beam 1, a support structure 2 is provided on the lower end of the head rib 4, the support structure 2 includes a top plate 201, a first sphere 210 is rotatably connected to the center of the lower end surface of the top plate 201, the lower end surface of the first sphere 210 is fixedly connected, and a second threaded rod 209 is provided, a first threaded sleeve 208 is threadedly sleeved at the lower part of the outer side wall of the second threaded rod 209, a first threaded rod 207 is threadedly sleeved at the lower end of the first threaded sleeve 208, the threads of the first threaded rod 207 and the second threaded rod 209 are oppositely arranged, and the lower end of the first threaded rod 207 is fixedly connected to the bottom plate 206.

[0034] The upper end surface of the bottom plate 206 is arranged in a rectangular shape and is rotatably connected to the second spheres 212. The centers of the upper end surfaces of the four second spheres 212 are fixedly connected to the third threaded rods 213. The upper outer walls of the four third threaded rods 213 are threadedly sleeved with second threaded sleeves 214. The upper ends of the four second threaded sleeves 214 are threadedly sleeved with fourth threaded rods 215. The threads of the four third threaded rods 213 and the four fourth threaded rods 215 are arranged oppositely. The upper end surfaces of the four fourth threaded rods 215 are fixedly connected to the third spheres 216. The four third spheres 216 are rotatably connected to the At the four diagonal points of the lower end surface of the top plate 201, the front and rear end surfaces of the bottom plate 206 and the two side walls of the bottom plate 206 are provided with connecting pieces 211. When in use, the bottom plate 206 is placed on a concrete platform, and two level glass tubes 3 are used to detect whether the top plate 201 is in a horizontal state. By rotating the four second threaded sleeves 214, the four second threaded sleeves 214 move the four third threaded rods 213 and the four fourth threaded rods 215 to the inside or outside of the four second threaded sleeves 214 respectively, thereby adjusting the levelness of the top plate 201 and improving the overall construction accuracy.

[0035] A level glass tube 3 is fixedly connected to one side of the center of the front end surface of the top plate 201 and the front center of one side wall of the top plate 201. The two level glass tubes 3 are used to detect whether the top plate 201 is in a horizontal state.

[0036] A first storage groove 202 is opened at one side of the center of the upper end surface of the top plate 201, and a piezoelectric power generation plate 203 is arranged inside the first storage groove 202. A second groove 204 is opened at the other side of the center of the upper end surface of the top plate 201, and a battery module 205, a level sensor 217 and an integrated chip board 218 are arranged inside the second groove 204. The level sensor 217 is used to detect whether the two top plates 201 are at the same level, and then the electric energy generated by the piezoelectric power generation plate 203 after being subjected to pressure is rectified and stabilized by the distillation stabilizer integrated on the integrated chip board 218, and then transmitted to the battery module 205, so as to power the level sensor 217 and the integrated chip board 218. Subsequently, the integrated chip board 218 integrates a signal transmission module to provide real-time feedback on the level status of the two level sensors 217, thereby improving subsequent maintenance, and real-time monitoring, thereby improving safety in use.

[0037] The connecting piece 211 includes two second threaded columns 2114, which are respectively arranged at the center of one end surface of the bottom plate 206 on both sides. A base plate 2111 is sleeved on the outside of the two second threaded columns 2114. A plurality of extension rods 2112 are arranged on one end surface of the base plate 2111. Two second nuts 2113 are threadedly sleeved on the ends of the two second threaded columns 2114. The four base plates 2111 are respectively sleeved on the outside of the eight second threaded columns 2114, and then the sixteen second nuts 2113 are respectively sleeved on the outside of the eight second threaded columns 2114, so as to facilitate fixing the four base plates 2111 on the front and rear end surfaces and the two side walls of the bottom plate 206. When pouring concrete, the contact with the concrete can be improved, thereby improving the connectivity.

[0038] Four first threaded columns 5 are arranged in a rectangular shape at the four diagonal portions of the upper end surface of the top plate 201. The four first threaded columns 5 all pass through the lower end surface of the head rib 4 to the upper end of the head rib 4, and the ends are all threadedly sleeved with first nuts 6 to facilitate connection between the top plate 201 and the I-beam 1.

[0039] A method for constructing a direct-buried steel section node of a steel-concrete composite structure comprises the following steps:

[0040] S1. Disassembly and carrying, by removing the sixteen second nuts 2113, and then removing the four substrates 2111, it is convenient to separate the four substrates 2111 and the bottom plate 206 for easy carrying;

[0041] S2. Horizontal adjustment: when in use, place the bottom plate 206 on a concrete platform, use two level glass tubes 3 to detect whether the top plate 201 is in a horizontal state, and by rotating the four second threaded sleeves 214, the four second threaded sleeves 214 move the four third threaded rods 213 and the four fourth threaded rods 215 to the inside or outside of the four second threaded sleeves 214, respectively, so as to adjust the horizontality of the top plate 201;

[0042] S3. Height adjustment: two level sensors 217 are used to detect whether the two top plates 201 are in a horizontal state. By rotating the first threaded sleeve 208, the first threaded rod 207 and the second threaded rod 209 are moved to the inside or outside of the first threaded sleeve 208, thereby adjusting the distance between the bottom plate 206 and the top plate 201, so as to facilitate height adjustment, so that the two I-beams 1 are always in the same horizontal state;

[0043] S4. The connecting piece 211 is installed by respectively sleeved the four base plates 2111 on the outside of the eight second threaded columns 2114, and then respectively sleeved the sixteen second nuts 2113 on the outside of the eight second threaded columns 2114, so as to facilitate fixing the four base plates 2111 on the front and rear end surfaces and the two side walls of the bottom plate 206. When pouring concrete, the contact between the base plates 2111 and the concrete can be improved, thereby improving the connectivity.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A directly buried steel node of a steel-concrete composite structure, comprising an I-beam (1), characterized in that: The lower end surface of the I-beam (1) is provided with a head rib plate (4), and the lower end of the head rib plate (4) is provided with a support structure (2), and the support structure (2) comprises a top plate (201), and a first sphere (210) is rotatably connected to the center of the lower end surface of the top plate (201), and the lower end surface of the first sphere (210) is fixedly connected to a second threaded rod (209), and a first threaded sleeve (208) is threadedly sleeved on the lower part of the outer wall of the second threaded rod (209), and a first threaded rod (207) is threadedly sleeved on the lower end of the first threaded sleeve (208), and the threads of the first threaded rod (207) and the second threaded rod (209) are arranged oppositely, and the lower end of the first threaded rod (207) is fixedly connected to a bottom plate (206); The upper end surface of the bottom plate (206) is arranged in a rectangular shape and is rotatably connected to second spheres (212); the centers of the upper end surfaces of the four second spheres (212) are fixedly connected to third threaded rods (213); the upper outer walls of the four third threaded rods (213) are threadedly sleeved with second threaded sleeves (214); the upper ends of the four second threaded sleeves (214) are threadedly sleeved with fourth threaded rods (215); the threads of the four third threaded rods (213) and the four fourth threaded rods (215) are arranged oppositely; the upper end surfaces of the four fourth threaded rods (215) are fixedly connected to third spheres (216); the four third spheres (216) are rotatably connected to four diagonal positions of the lower end surface of the top plate (201); and the front and rear end surfaces of the bottom plate (206) and the two side walls of the bottom plate (206) are provided with connecting pieces (211).

2. The direct-buried steel node of the steel-concrete composite structure according to claim 1, characterized in that: A level glass tube (3) is fixedly connected to a side of the center of the front end surface of the top plate (201) and a front of the center of a side wall of the top plate (201).

3. The direct-buried steel node of the steel-concrete composite structure according to claim 1, characterized in that: A first storage groove (202) is provided at one side of the center of the upper end surface of the top plate (201), and a piezoelectric power generation plate (203) is provided inside the first storage groove (202). A second groove (204) is provided at the other side of the center of the upper end surface of the top plate (201), and a battery module (205), a level sensor (217) and an integrated chip board (218) are provided inside the second groove (204).

4. The direct-buried steel node of the steel-concrete composite structure according to claim 1, characterized in that: The connecting member (211) comprises two second threaded columns (2114), the two second threaded columns (2114) are respectively arranged at the center of one end surface of the bottom plate (206) on both sides, a base plate (2111) is sleeved on the outer side of the two second threaded columns (2114), a plurality of extension rods (2112) are arranged on one end surface of the base plate (2111), and two second nuts (2113) are threadedly sleeved on the ends of the two second threaded columns (2114).

5. The direct-buried steel node of the steel-concrete composite structure according to claim 1, characterized in that: Four first threaded columns (5) are arranged in a rectangular shape at four diagonal positions on the upper end surface of the top plate (201); the four first threaded columns (5) all penetrate the lower end surface of the head rib plate (4) to the upper end of the head rib plate (4), and the ends are all threadedly sleeved with first nuts (6).

6. A method for constructing a direct-buried steel node of a steel-concrete composite structure, using a direct-buried steel node of a steel-concrete composite structure according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. Disassembly and carrying: by removing the sixteen second nuts (2113), and then removing the four base plates (2111), it is convenient to separate the four base plates (2111) from the bottom plate (206) for easy carrying; S2. Horizontal adjustment: when in use, the bottom plate (206) is placed on a concrete platform, and two level glass tubes (3) are used to detect whether the top plate (201) is in a horizontal state. By rotating the four second threaded sleeves (214), the four second threaded sleeves (214) move the four third threaded rods (213) and the four fourth threaded rods (215) to the inside or outside of the four second threaded sleeves (214), respectively, so as to adjust the horizontality of the top plate (201); S3. Height adjustment, by detecting whether the two top plates (201) are in a horizontal state through two level sensors (217), and by rotating the first threaded sleeve (208), the first threaded rod (207) and the second threaded rod (209) are moved to the inside or outside of the first threaded sleeve (208), thereby adjusting the distance between the bottom plate (206) and the top plate (201), facilitating height adjustment, so that the two I-beams (1) are always in the same horizontal state; S4. The connecting piece (211) is installed by respectively sleeved the four base plates (2111) on the outside of the eight second threaded columns (2114), and then sleeved the sixteen second nuts (2113) on the outside of the eight second threaded columns (2114), so as to facilitate fixing the four base plates (2111) on the front and rear end surfaces and the two side walls of the bottom plate (206). When pouring concrete, the contact between the base plates and the concrete can be improved, thereby improving the connectivity.

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