阅读说明：本技术 一种铸钢件与常规钢构件等强连接节点 (Equal-strength connecting joint of steel casting and conventional steel casting ) 是由 万涛平 马洁烽 贾尚瑞 张敏 王强 胡建华 卢福生 于 2021-08-11 设计创作，主要内容包括：本发明涉及建筑钢结构设计技术领域,且公开了一种铸钢件与常规钢构件等强连接节点。本发明包括铸钢件和钢构件,所述钢构件的连接端头设置管内封头板,封头板与钢构件采用全熔透连接焊缝,通过端铣将构件的端头铣出企口,所述企口宽度不小于铸钢件的壁厚加上焊接衬板的厚度之和,所述铸钢件通过企口和钢构件焊接固定。通过在钢构件的连接端头处设置封头板,并通过端铣设置企口加大钢构件一侧连接焊缝的厚度与铸钢件连接端头管件壁厚一致,以此来实现铸钢件与钢构件之间的等强连接。(The invention relates to the technical field of building steel structure design and discloses an equal-strength connecting node of a steel casting and a conventional steel member. The steel casting comprises a steel casting and a steel casting, wherein a connecting end of the steel casting is provided with an in-pipe end sealing plate, the end sealing plate and the steel casting adopt full penetration connecting welding seams, the end of the steel casting is milled with a tongue-and-groove through end milling, the width of the tongue-and-groove is not less than the sum of the wall thickness of the steel casting and the thickness of a welding lining plate, and the steel casting is welded and fixed with the steel casting through the tongue-and-groove. The end sealing plate is arranged at the connecting end of the steel member, and the end milling is adopted to increase the thickness of the connecting welding line at one side of the steel member to be consistent with the wall thickness of the pipe fitting at the connecting end of the steel member, so that equal-strength connection between the steel member and the steel member is realized.)

1. The utility model provides a cast steel spare and regular steel member equal strong connected node which characterized in that: including steel-casting and steel member, the connection end inboard of steel member sets up the welding welt, the inside head board that sets up of connection end of steel member set up the tongue-and-groove on connection end and the head board of steel member, the tongue-and-groove width is not less than the wall thickness of steel-casting and welds the thickness sum of liner plate in addition, the steel-casting passes through tongue-and-groove and steel member welded fastening.

2. The equal-strength connecting node of the steel casting and the conventional steel casting as claimed in claim 1, wherein: the thickness of the end socket plate is not less than the maximum plate thickness of the steel member.

3. The equal-strength connecting node of the steel casting and the conventional steel casting as claimed in claim 1, wherein: the tongue-and-groove is formed by end milling.

4. A steel casting and conventional steel casting equal-strength connecting node according to claim 3, characterized in that: before the end milling, the upper top surface of the end sealing plate is lower than the top surface of the connecting end of the steel member, and the distance between the upper top surface of the end sealing plate and the upper top surface of the connecting end of the steel member is not less than the plate thickness of the end sealing plate.

5. A steel casting and conventional steel casting equal-strength connecting node according to any one of claims 1 to 4, characterized in that: the interior of end sealing board and steel member passes through welded fastening.

6. A steel casting and conventional steel casting equal-strength connecting node according to claim 5, characterized in that: the end sealing plate is connected with the steel member through a full penetration welding line.

7. A steel casting and conventional steel casting equal-strength connecting node according to claim 1, 2, 3, 4 or 6, characterized in that: the steel casting and the steel member are connected by a full penetration welding line.

8. The equal-strength connecting node of the steel casting and the conventional steel casting as claimed in claim 1, wherein: when the steel casting is welded and fixed with the steel casting through the rabbet, a welding gap of 1-3 mm is reserved between the connecting end of the steel casting and the horizontal plane of the rabbet of the steel casting, and a multilayer and multichannel welding process is adopted in the welding process.

Technical Field

The invention relates to the technical field of building steel structure design, in particular to an equal-strength connecting node of a steel casting and a conventional steel member.

Background

The node is used as the most important component in a steel structure building, and the safety, reliability and installation convenience of the node directly influence the safety of a building steel structure and the construction efficiency. In recent years, the appearance of a large number of special-shaped steel structure buildings leads an unconventional steel structure node to obtain an unprecedented development, namely a cast steel node.

The cast steel node is manufactured by adopting an integral pouring process, so that the appearance requirements of various special-shaped nodes can be met. However, the strength of the cast steel material is different from that of the conventional steel materials (Q355, Q390, Q460, etc.), so the connection joints between the cast steel member and the conventional steel member are difficult to be connected with equal strength, and the connection joints often become the weak points of the safety of the structure. The principle of 'strong connection and weak member' in the design of the steel structure is contrary, so that the design of the steel casting and conventional steel member equal-strength connection node has great practical significance.

Disclosure of Invention

The invention provides a steel casting and conventional steel casting equal-strength connecting node for solving the technical problems in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a cast steel spare and regular steel member equal strong connected node, includes cast steel spare and steel member, the connection end inboard of steel member sets up the welding welt, the inside fixed head board that sets up of connection end of steel member, the top surface of head board exceeds the connection end top surface of steel member set up the tongue-and-groove on the connection end of steel member and the head board, the wall thickness that the tongue-and-groove width is not less than cast steel spare adds the thickness sum of welding lining plate, the cast steel spare passes through tongue-and-groove and steel member welded fastening. The end sealing plate is arranged at the connecting end of the steel member, and the thickness of the connecting welding line at one side of the steel member is increased by arranging the tongue-and-groove to be consistent with the wall thickness of the pipe fitting at the connecting end of the steel member, so that equal-strength connection between the steel member and the steel member is realized.

Preferably, the thickness of the end socket plate is not less than the maximum plate thickness of the steel member.

Preferably, the rebate is formed by end milling.

Preferably, before end milling, the upper top surface of the end sealing plate is lower than the top surface of the connecting end of the steel member, and the distance between the upper top surface of the end sealing plate and the upper top surface of the connecting end of the steel member is not less than the plate thickness of the end sealing plate. And arranging the end sealing plate in the steel member, milling the part of the steel member higher than the end sealing plate by end milling until the connecting end of the steel member is flush with the end sealing plate, and then continuously milling to form a tongue-and-groove.

Preferably, the head plate and the inside of the steel member are fixed by welding.

Preferably, the end sealing plate and the steel member are connected through a full penetration welding seam.

Preferably, the steel casting and the steel member are connected by a full penetration weld.

Preferably, when the steel casting is welded and fixed with the steel casting through the tongue-and-groove, a welding gap of 1-3 mm is reserved between the connecting end of the steel casting and the horizontal plane of the tongue-and-groove of the steel casting, and a multilayer and multichannel welding process is adopted in the welding process. The heat input amount is reduced, the deformation is reduced, and the probability of generating defects is reduced.

The invention has the beneficial effects that:

(1) according to the invention, the two main body steel castings and the steel member connecting end heads connected by the nodes are respectively processed, so that the processing mode is simple, the operation is easy, and the cost is low;

(2) the invention uses less welding measures and only comprises a head plate and a part of welding lining plate;

(3) the invention solves the problem of equal-strength connection between the steel casting and the steel casting which is difficult to solve at present, and realizes the requirements of 'strong nodes and weak rods' in the design principle of the steel structure;

(4) the invention can greatly save the steel consumption of the node area and reduce the material use cost;

(5) the invention has wide application range and is suitable for all the strong connecting nodes of the closed section members and the steel castings.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a steel casting according to the present invention;

fig. 3 is a schematic structural view of a steel member of the present invention.

In the figure: 1. casting steel; 3. a steel member; 4. a head sealing plate; 5. a full penetration weld; 6. welding a lining plate; 7. a tongue-and-groove; 8. and (6) welding and cutting.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

Example (b): a steel casting and conventional steel member equal-strength connecting node comprises a steel casting and a steel member, as shown in figures 1-3, generally, in a design stage, the wall thickness of a connecting end of the steel casting is designed according to the wall thickness and the material strength of a steel member, so that the section strength of the connecting end of the steel casting is consistent with that of the steel member; when the steel casting and the steel member are processed, two main steel casting and steel member connecting ends which are connected in a node mode are processed respectively, a head plate is fixedly arranged inside the connecting end of the steel member, the distance between the head plate and the end of the steel member is not less than the thickness of the head plate, the thickness of the head plate is not less than the maximum plate thickness of the steel member, full penetration welding is adopted, welding grooves with the angle of 30-45 degrees are formed in the two ends of the head plate, a welding lining plate is arranged at the bottom of the head plate, the distance between the upper top surface of the head plate and the upper top surface of the connecting end of the steel member is not less than the thickness of the head plate, the head plate is arranged inside the steel member, a part of the steel member, which is higher than the head plate, is cut off through end milling until the connecting end of the steel member is flush with the head plate, then the cutting is continued, a groove is cut, the groove width is not less than the sum of the thickness of the steel casting and the thickness of the welding lining plate, the general width is 8-10mm, the height is 5-10mm, the tongue-and-groove height is the height of the end plate higher than the top surface of the connecting end of the steel member, the steel casting is also provided with a welding groove at the connecting end, the angle is 30-45 degrees, and a welding lining plate is arranged on the inner wall of the connecting end; when the steel casting is installed on site, a welding gap of 1-3 mm is reserved between the connecting end of the steel casting and the rabbet horizontal plane of the steel casting, full penetration welding is adopted, and a multi-layer and multi-channel welding process is adopted in the welding process.

According to the invention, the end sealing plate is arranged at the connecting end of the steel member, and the thickness of the connecting welding seam at one side of the steel member is increased to be consistent with the wall thickness of the pipe fitting at the connecting end of the steel member by using an end milling technology, so that equal-strength connection between the steel member and the steel member is realized. The method has the advantages of easy processing, strong operability, low cost and the like, and is beneficial to the actual engineering.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.