A structure-stable fabricated building steel structure
By using a combination of components such as six-hole connectors and rectangular frames, the problem of rapid multi-joint installation between I-shaped steel columns and I-shaped connecting steel beams was solved, achieving efficient and stable prefabricated building steel structure connections.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA MCC5 GROUP CORP LTD
- Filing Date
- 2025-06-28
- Publication Date
- 2026-07-14
Smart Images

Figure CN224495390U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building steel structure technology, specifically to a structurally stable prefabricated building steel structure. Background Technology
[0002] Prefabricated buildings refer to buildings constructed by assembling and connecting factory-produced components on the construction site. Steel-structure prefabricated buildings refer to steel-structure buildings constructed by assembling and connecting factory-produced steel structure components on the construction site.
[0003] For example, CN216552397U discloses a prefabricated steel structure with good stability, relating to the technical field of building steel structures. It includes multiple columns and crossbeams installed between adjacent columns. Each crossbeam has mounting grooves at both ends near the columns, and two symmetrical mounting plates are slidably connected within each groove via elastic elements. Each of the tops of two adjacent columns has a placement groove for holding the two mounting plates. Each mounting plate has a snap-fit assembly at its end near the columns for fixing the mounting plates, and a driving element at its end away from the columns for displacing the mounting plates. This application allows for rapid installation of crossbeams between adjacent columns on the construction site, effectively reducing corrosion at beam-column connection points and improving the stability of the prefabricated steel structure.
[0004] However, in implementing the relevant technology, the following problems were found in the above-mentioned prefabricated steel structure with good stability: it is difficult to adapt to the rapid multi-joint installation between I-shaped steel columns and I-shaped connecting steel beams, which makes it impossible for the I-shaped steel columns and I-shaped connections to be plugged into each other and fixed with screws, reducing the utilization efficiency of the prefabricated steel structure; and it is difficult to tighten and strengthen the joint between the I-shaped steel columns and I-shaped connecting steel beams, thereby reducing the stability between the two. Therefore, a prefabricated steel structure with good stability is proposed. Utility Model Content
[0005] This utility model proposes a structurally stable prefabricated steel structure for buildings, solving the problems in related technologies where it is difficult to adapt to the rapid multi-joint installation between I-shaped steel columns and I-shaped connecting steel beams, resulting in the inability of I-shaped steel columns and I-shaped connections to be interlocked and fixed with screws, thus reducing the efficiency of the prefabricated steel structure. It also addresses the problem of difficulty in tightening and strengthening the joints between the I-shaped steel columns and I-shaped connecting steel beams, thereby reducing the stability between them.
[0006] The technical solution of this utility model is as follows: A structurally stable prefabricated building steel structure, comprising: a prefabricated steel structure and a reinforcing mechanism installed on the prefabricated steel structure;
[0007] The assembled steel structure includes a base, insert rods, fixing frame, I-shaped steel column, six-hole joint, cross-shaped joint, five-hole joint, corner four-hole joint, corner three-hole joint, straight joint, straight three-hole joint and I-shaped connecting steel beam;
[0008] The reinforcement mechanism includes a rectangular frame, bolts, mounting ears, an internally threaded cylinder, a screw, a lead screw, and a nut.
[0009] Preferably, multiple I-shaped connecting steel beams are provided, and the I-shaped steel columns, six-hole joints, cross-shaped joints, five-hole joints, corner four-hole joints, corner three-hole joints, straight joints and straight three-hole joints are connected to each other.
[0010] Preferably, the straight three-hole connector is located on one side of the straight connector, and the straight connector is located on one side of the corner three-hole connector.
[0011] Preferably, the corner three-hole connector is located on one side of the corner four-hole connector, and the corner four-hole connector is located on one side of the five-hole connector.
[0012] Preferably, the five-hole connector is located on one side of the cross-shaped connector, and the cross-shaped connector is located on one side of the six-hole connector.
[0013] Preferably, the top end of the I-shaped steel column is inserted into the bottom of the six-hole connector, and the bottom end of the I-shaped steel column is inserted into the top of the base.
[0014] Preferably, the insertion rod is threaded to the bottom of the base, and the fixing bracket is fixedly installed on the outer side wall of the insertion rod.
[0015] Preferably, the nut is threaded onto the lead screw, and there are two lead screws, which are respectively fixedly installed on the internal threaded cylinder and the end of the lead screw.
[0016] Preferably, the screw is connected to one end of the internally threaded cylinder, and the lead screw is inserted through the mounting lug.
[0017] Preferably, there are two mounting ears, which are symmetrically and fixedly installed on two corresponding parts of the rectangular frame;
[0018] The rectangular frame can be fitted onto any one of the following: an I-shaped steel column, a six-hole joint, a cross-shaped joint, a five-hole joint, a corner four-hole joint, a corner three-hole joint, a straight joint, a straight three-hole joint, and an I-shaped connecting steel beam, and the two are fixedly connected by bolts.
[0019] The working principle and beneficial effects of this utility model are as follows:
[0020] 1. Through six-hole joints, cross-shaped joints, five-hole joints, corner four-hole joints, corner three-hole joints, straight joints, straight three-hole joints, and I-shaped connecting steel beams, it effectively adapts to the installation between I-shaped steel columns and I-shaped connecting steel beams, effectively facilitating the rapid assembly of building steel structures. Through mutual plugging and screw fixing, it achieves a highly stable prefabricated building steel structure, thereby improving the efficiency of use.
[0021] Second, by fitting a rectangular frame onto the joint that needs to be reinforced, and fixing the rectangular frame to the joint with bolts, the screw is rotated, and the linkage screw moves in the internal thread cylinder to adjust the length. The screw is then inserted through the mounting ear, and finally the nut is screwed on to tighten the two joints. This prevents the I-shaped connecting steel beam from loosening or separating from the joint, thereby enhancing the stability between the two. Attached Figure Description
[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed in this utility model;
[0024] Figure 2 This is a side view of the three-dimensional structure proposed in this utility model;
[0025] Figure 3 A three-dimensional structural diagram of the reinforcement mechanism proposed in this utility model is provided;
[0026] In the diagram: 100. Assembled steel structure; 101. Base; 102. Insert rod; 103. Fixing frame; 104. I-shaped steel column; 105. Six-hole connector; 106. Cross-shaped connector; 107. Five-hole connector; 108. Corner four-hole connector; 109. Corner three-hole connector; 1010. Straight-through connector; 1011. Straight three-hole connector; 1012. I-shaped connecting steel beam;
[0027] 200. Reinforcing mechanism; 201. Rectangular frame; 202. Bolt; 203. Mounting lug; 204. Internally threaded cylinder; 205. Screw; 206. Lead screw; 207. Nut. Detailed Implementation
[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0029] Example 1
[0030] Please see Figure 1 - Figure 3 A structurally stable prefabricated steel structure for buildings, comprising: prefabricated steel structure 100;
[0031] The assembled steel structure 100 includes a base 101, a plug rod 102, a fixing frame 103, an I-shaped steel column 104, a six-hole connector 105, a cross-shaped connector 106, a five-hole connector 107, a corner four-hole connector 108, a corner three-hole connector 109, a straight connector 1010, a straight three-hole connector 1011, and an I-shaped connecting steel beam 1012;
[0032] Multiple I-beam connecting steel beams 1012 are provided, connecting I-beam steel columns 104, six-hole joints 105, cross-shaped joints 106, five-hole joints 107, corner four-hole joints 108, corner three-hole joints 109, straight-through joints 1010, and straight three-hole joints 1011. Straight three-hole joints 1011 are located on one side of straight-through joints 1010, straight-through joints 1010 are located on one side of corner three-hole joints 109, and corner three-hole joints 109 are located on one side of corner four-hole joints 1010. On one side of the four-hole connector 108, the corner four-hole connector 108 is located on one side of the five-hole connector 107, the five-hole connector 107 is located on one side of the cross-shaped connector 106, the cross-shaped connector 106 is located on one side of the six-hole connector 105, the top of the I-shaped steel column 104 is inserted into the bottom of the six-hole connector 105, the bottom of the I-shaped steel column 104 is inserted into the top of the base 101, the insertion rod 102 is threadedly connected to the bottom of the base 101, and the fixing bracket 103 is fixedly installed on the outer wall of the insertion rod 102.
[0033] This utility model provides a structurally stable prefabricated steel structure for buildings. The insertion rod 102 is tightened with the bottom thread of the base 101, the insertion rod 102 is inserted into the groove dug in the ground, and concrete is injected. Under the action of the fixing frame 103, the stability of the base 101 installed on the ground is effectively improved.
[0034] The six-hole connector 105, cross-shaped connector 106, five-hole connector 107, corner four-hole connector 108, corner three-hole connector 109, straight connector 1010, straight three-hole connector 1011, and I-shaped connecting steel beam 1012 effectively adapt to the installation between I-shaped steel column 104 and I-shaped connecting steel beam 1012, effectively facilitating the rapid assembly of building steel structures. Through mutual plugging and screw fixing, a highly stable prefabricated building steel structure is achieved, thereby improving the efficiency of use.
[0035] Example 2
[0036] Based on Embodiment 1, this embodiment includes: a reinforcement mechanism 200 disposed on the assembled steel structure 100, the reinforcement mechanism 200 including a rectangular frame 201, a bolt 202, a mounting ear 203, an internal threaded cylinder 204, a screw 205, a lead screw 206 and a nut 207;
[0037] Nut 207 is threaded onto screw 206. There are two screw 206s, which are fixedly installed on the ends of internal threaded cylinder 204 and screw 205, respectively. Screw 205 is connected to one end of internal threaded cylinder 204. Screw 206 is inserted through and onto mounting ears 203. There are two mounting ears 203s, which are symmetrically fixedly installed on two rectangular frames 201. Rectangular frame 201 can be fitted onto any one of the following: I-shaped steel column 104, six-hole connector 105, cross-shaped connector 106, five-hole connector 107, corner four-hole connector 108, corner three-hole connector 109, straight connector 1010, straight three-hole connector 1011, and I-shaped connecting steel beam 1012, and they are fixedly connected by bolts 202.
[0038] The technical solution provided in this embodiment is as follows: When it is necessary to strengthen and fix the connection between the I-shaped connecting steel beam 1012 and multiple joints, firstly, the rectangular frame 201 is fitted onto the joint that needs to be strengthened and fixed, and the rectangular frame 201 is fixedly connected to the joint by bolts 202.
[0039] Next, rotate the screw 205. The screw 205 moves in the threaded motion inside the internal threaded cylinder 204 to adjust the length, and insert the lead screw 206 through the mounting ear 203.
[0040] Finally, screw on nut 207 to tighten the two joints, and place them on the I-shaped connecting steel beam 1012 so that the joints are loose or detached, thereby enhancing the stability between the two.
[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A structurally stable prefabricated steel structure for buildings, characterized in that, include: Prefabricated steel structure and reinforcement mechanisms installed on the prefabricated steel structure; The assembled steel structure includes a base, insert rods, fixing frame, I-shaped steel column, six-hole joint, cross-shaped joint, five-hole joint, corner four-hole joint, corner three-hole joint, straight joint, straight three-hole joint and I-shaped connecting steel beam; The reinforcement mechanism includes a rectangular frame, bolts, mounting ears, an internally threaded cylinder, a screw, a lead screw, and a nut.
2. The structurally stable prefabricated steel structure for buildings according to claim 1, characterized in that: Multiple I-shaped connecting steel beams are provided, and they connect I-shaped steel columns, six-hole joints, cross-shaped joints, five-hole joints, corner four-hole joints, corner three-hole joints, straight joints, and straight three-hole joints.
3. The structurally stable prefabricated steel structure for buildings according to claim 2, characterized in that: The straight three-hole connector is located on one side of the straight connector, and the straight connector is located on one side of the corner three-hole connector.
4. A structurally stable prefabricated steel structure for buildings according to claim 3, characterized in that: The corner three-hole connector is located on one side of the corner four-hole connector, and the corner four-hole connector is located on one side of the five-hole connector.
5. A structurally stable prefabricated steel structure for buildings according to claim 4, characterized in that: The five-hole connector is located on one side of the cross-shaped connector, and the cross-shaped connector is located on one side of the six-hole connector.
6. A structurally stable prefabricated steel structure for buildings according to claim 1, characterized in that: The top end of the I-shaped steel column is inserted into the bottom of the six-hole connector, and the bottom end of the I-shaped steel column is inserted into the top of the base.
7. A structurally stable prefabricated steel structure for buildings according to claim 1, characterized in that: The insertion rod is threaded to the bottom of the base, and the fixing bracket is fixedly installed on the outer side wall of the insertion rod.
8. A structurally stable prefabricated steel structure for buildings according to claim 1, characterized in that: The nut is threaded onto the lead screw, and there are two lead screws, which are respectively fixedly installed on the internal threaded cylinder and the end of the lead screw.
9. A structurally stable prefabricated steel structure for buildings according to claim 8, characterized in that: The screw is connected to one end of the internally threaded cylinder, and the lead screw is inserted through the mounting lug.
10. A structurally stable prefabricated steel structure for buildings according to claim 9, characterized in that: The mounting ears are provided in two parts, symmetrically fixedly installed on the two sides of the rectangular frame; The rectangular frame can be fitted onto any one of the following: an I-shaped steel column, a six-hole joint, a cross-shaped joint, a five-hole joint, a corner four-hole joint, a corner three-hole joint, a straight joint, a straight three-hole joint, and an I-shaped connecting steel beam, and the two are fixedly connected by bolts.