Connecting joint of unequal-height steel members

Abstract

The utility model belongs to the field of constructional engineering, and provides a connecting node of unequal-height steel members, which comprises a first connecting member, a second connecting member and a connecting partition plate, the section height of the first connecting component is smaller than that of the second connecting component, section conversion steel components are arranged on the upper side and the lower side of the first connecting component, the first connecting component is fixedly welded to the section conversion steel components on the upper side and the lower side, and the section conversion steel components are fixedly welded to the connecting partition plate. The connecting partition plate and the second connecting component are welded and fixed. The connecting joint structure fits the stress characteristics of connecting joints of steel members with different heights, the connecting joint structure is simple, force transmission is direct and reliable, compared with a traditional adapter, the section conversion steel member is divided into two parts, the construction error redundancy is improved, manufacturing on a construction site is convenient, and applicability is high. On the basis that the structural safety of the structural system is ensured, the construction speed and quality are effectively improved, and very positive significance is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of construction engineering, and particularly relates to a connection node of unequal-height steel members. Background Art

[0002] The connection of unequal-height members is a common problem in steel structure design. In the prior art, a variable cross-section transition member is usually adopted, which needs to be specially manufactured according to the actual variable cross-section situation. When the number and types of variable cross-section transition members to be manufactured are large, or it is difficult to centrally set and align (such as for reticulated shell nodes), the construction error redundancy is small and the quality is difficult to control. In this case, how to make the node structure not only meet the structural stress requirements but also have good construction adaptability to ensure the quality is the main problem that must be considered in the design of the connection node of unequal-height members. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a connection node of unequal-height steel members, which has a simple structure, a clear force transmission path, direct and reliable force transmission, a relatively high construction error redundancy, convenient construction, and good economy, meeting the requirements of building shape.

[0004] To achieve the above object, the utility model adopts the following technical scheme: A connection node of unequal-height steel members, comprising a first connection member, a second connection member, and a connection partition located between the first connection member and the second connection member;

[0005] The cross-sectional height of the first connection member is less than that of the second connection member. Section conversion steel members are provided on both the upper and lower sides of the first connection member. The section conversion steel member is a slope-shaped structure. The inclined surface of the section conversion steel member extends from the side wall of the first connection member to the side wall of the connection partition. The first connection member is fixedly welded to the section conversion steel members on both the upper and lower sides. The section conversion steel member is fixedly welded to the connection partition. The connection partition is fixedly welded to the second connection member.

[0006] Preferably, the upper and lower flanges of the first connection member are planed and tightly abutted against the connection partition.

[0007] Preferably, both the upper and lower ends of the connection partition protrude from the second connection member.

[0008] Preferably, both the upper and lower ends of the connection partition protrude from the second connection member by 5 mm.

[0009] Preferably, the first connection member and the second connection member have the same cross-sectional width.

[0010] Preferably, the top end of the cross-section conversion steel member on the upper side is flush with the top end of the second connecting member, and the bottom end of the cross-section conversion steel member on the lower side is flush with the bottom end of the second connecting member.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model provides a connection node for unequal height steel members, the node structure of which fits the force characteristics of the connection node of unequal height steel members, the connection node structure is simple, the force transmission is direct and reliable, the cross-section conversion steel member is divided into two parts compared with the traditional adapter, the construction error redundancy is improved, and the construction site is convenient to manufacture and has strong applicability. It has a very positive significance for effectively improving the construction speed and quality on the basis of ensuring the structural safety of such structural systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the front view structure of a connection node of unequal height steel members provided in an embodiment of the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle.

[0015] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0016] 1. First connecting member; 2. Second connecting member; 3. Section conversion steel member; 4. Connecting partition. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below in conjunction with specific embodiments so that those skilled in the art can understand the present invention more clearly.

[0018] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For ordinary technicians in this field, the specific meanings of such terms in this patent can be understood according to specific circumstances.

[0019] Example 1

[0020] A large-span lattice shell with a span of 18mx55m and a rise of 4.5m. In order to achieve a light and exposed effect, the lattice shell rods are adjusted to rectangular tubes, and the lattice shell nodes are tube-type nodes. Since the heights of the rectangular tube sections are different, many transition joints need to be gathered at the tube-type nodes. Conventional design and construction have low error redundancy, difficult construction, and low efficiency.

[0021] In order to solve the above problems, Figure 1As shown in the figure, this embodiment provides a connection node for unequal-height steel members, including a first connection member 1, a second connection member 2, and a connection partition plate 4 located between the first connection member 1 and the second connection member 2.

[0022] Both the first connection member 1 and the second connection member 2 are rectangular tubes. The cross-sectional height of the first connection member 1 is less than that of the second connection member 2, and the cross-sectional widths of the first connection member 1 and the second connection member 2 are the same. The upper and lower flanges (top plate and bottom plate) of the first connection member 1 cannot be aligned with the upper and lower flanges (top plate and bottom plate) of the second connection member 2, resulting in poor force transmission effect.

[0023] Section conversion steel members 3 are provided on both the upper and lower sides of the first connection member 1. The section conversion steel member 3 is a ramp-shaped structure and is a hollow structure. The inclined surface of the upper section conversion steel member 3 extends from the upper flange of the first connection member 1 to the side wall of the connection partition plate 4, and the inclined surface of the lower section conversion steel member 3 extends from the lower flange of the first connection member 1 to the side wall of the connection partition plate 4.

[0024] The upper and lower flanges of the first connection member 1 are respectively welded and fixed to the webs of the upper and lower section conversion steel members 3. At the same time, the section conversion steel member 3 is welded and fixed to the connection partition plate 4, and the connection partition plate 4 is welded and fixed to the second connection member 2.

[0025] Based on the above structure, after the first connection member 1 and the section conversion steel member 3 are welded to form an integral body, the second connection member 2 is welded to the connection partition plate 4 in full cross-section and then welded to the integral body formed by the first connection member 1 and the section conversion steel member 3, so as to realize the continuous force transmission between the first connection member 1 and the second connection member 2.

[0026] Specifically, the internal force of the upper flange of the first connection member 1 can be transmitted to the connection partition plate 4 through the flange of the upper section conversion steel member 3 and then transmitted to the upper flange of the second connection member 2; the internal force of the lower flange of the first connection member 1 can be transmitted to the connection partition plate 4 through the flange of the lower section conversion steel member 3 and then transmitted to the lower flange of the second connection member 2. Among them, the section conversion steel member 3 can be designed as a standard adapter and prefabricated in the factory according to the cross-sectional height difference between the first connection member 1 and the second connection member 2.

[0027] In summary, the connection node provided in this embodiment conforms to the force characteristics of the connection node of unequal-height steel members. The structure of the connection node is simple, and the force transmission is direct and reliable. The section conversion steel member 3 is split into two compared with the traditional adapter, which improves the redundancy of construction error, is convenient for fabrication on the construction site, and has strong applicability. It has very positive significance for effectively improving the construction speed and quality on the basis of ensuring the structural safety of such structural systems.

[0028] In this embodiment, the upper and lower flanges of the first connecting member 1 and the connecting partition 4 may not be welded, and only planed and tightly abutted are required, which can reduce the on-site construction welding amount.

[0029] Both the upper and lower ends of the connecting partition 4 protrude from the second connecting member 2. For example, the upper end of the connecting partition 4 protrudes 5 mm from the upper end of the second connecting member 2, and the lower end of the connecting partition 4 protrudes 5 mm from the lower end of the second connecting member 2. The sectional height of the connecting partition 4 is slightly higher than the sectional height of the second connecting member 2, which is beneficial to improving the redundancy of construction error and is of great significance to the fabrication and construction convenience of the node.

[0030] In this embodiment, the top end of the upper-section conversion steel member 3 is flush with the top end of the second connecting member 2, and the bottom end of the lower-section conversion steel member 3 is flush with the bottom end of the second connecting member 2.

[0031] For example, the internal force of the upper flange of the first connecting member 1 can be transmitted to the connecting partition 4 through the flange of the upper-section conversion steel member 3, and then transmitted to the upper flange of the second connecting member 2. Since the top end of the upper-section conversion steel member 3 is flush with the top end of the second connecting member 2, when the internal force of the upper-section conversion steel member 3 is transmitted to the upper flange of the second connecting member 2, the transmission path is more direct and reliable.

[0032] Similarly, the internal force of the lower flange of the first connecting member 1 can be transmitted to the connecting partition 4 through the flange of the lower-section conversion steel member 3, and then transmitted to the lower flange of the second connecting member 2. Since the bottom end of the lower-section conversion steel member 3 is flush with the bottom end of the second connecting member 2, when the internal force of the lower-section conversion steel member 3 is transmitted to the lower flange of the second connecting member 2, the transmission path is more direct and reliable.

[0033] The mechanisms, components, and parts not described in detail in the present invention are existing structures that already exist in the prior art and can be directly purchased from the market.

[0034] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it should not be construed as a limitation to the present utility model. In addition, "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0035] The above are only the preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A connection node of steel members of unequal heights, characterized in that: It comprises a first connecting member (1), a second connecting member (2), and a connecting partition (4) located between the first connecting member (1) and the second connecting member (2); The cross-sectional height of the first connecting member (1) is smaller than the cross-sectional height of the second connecting member (2); the first connecting member (1) is provided with cross-sectional conversion steel members (3) on both upper and lower sides; the cross-sectional conversion steel members (3) are sloped structures; the slope of the cross-sectional conversion steel member (3) extends from the side wall of the first connecting member (1) to the side wall of the connecting partition (4); the first connecting member (1) is welded to the cross-sectional conversion steel members (3) on the upper and lower sides; the cross-sectional conversion steel member (3) is welded to the connecting partition (4); and the connecting partition (4) is welded to the second connecting member (2).

2. A connection node for steel members of unequal heights according to claim 1, characterized in that: The upper and lower flanges of the first connecting member (1) are planed and tightly pressed against the connecting partition (4).

3. A connection node for steel members of unequal heights according to claim 1, characterized in that: The upper and lower ends of the connecting partition (4) both protrude from the second connecting member (2).

4. A connection node for steel members of unequal heights according to claim 3, characterized in that: The upper and lower ends of the connecting partition (4) both protrude 5 mm from the second connecting member (2).

5. The connection node of steel members of unequal heights according to claim 1, characterized in that: The first connecting member (1) and the second connecting member (2) have the same cross-sectional width.

6. The connection node of steel members of unequal heights according to claim 1, characterized in that: The top end of the cross-section conversion steel member (3) on the upper side is flush with the top end of the second connecting member (2), and the bottom end of the cross-section conversion steel member (3) on the lower side is flush with the bottom end of the second connecting member (2).

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