A secondary steel structure that does not participate in the vertical load of the main body

Abstract

The utility model relates to the technical field of construction engineering, and specifically discloses a secondary steel structure that does not participate in the vertical load of the main body, including a connection structure; the connection structure includes a steel column 1 connected to the upper main structure and arranged vertically, a steel column 2 installed on the lower main structure and sleeved in the steel column 1, and a flexible component installed on the lower main structure, an annular gap is formed between the steel column 1 and the steel column 2, and the flexible component is sleeved on the outside of the steel column 2 and its top end extends into the annular gap. The utility model realizes a telescopic connection through the steel column 1 and the steel column 2, so that it does not participate in the secondary internal force redistribution of the main structure as a secondary structure, and can effectively ensure stability; and the utility model is made of steel structure, its dead weight is relatively light, it is convenient for on-site installation and construction, reduces on-site wet operations, and effectively improves the on-site construction progress.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, and more specifically, to a secondary steel structure which does not participate in the vertical load bearing of a main body. Background Art

[0002] In the building decoration industry, partition walls are non-main structural components, and concrete structural columns and ring beams are generally set inside them; when the height and span of the door opening in the partition wall are large, the size of the lintel on the door opening and the structural columns at both ends are generally large;

[0003] If the structural column in the partition wall is not disconnected from the main body at this time, the structural column will participate in the secondary internal force redistribution of the main structure, which may cause stress damage to the main structural components.

[0004] It can be seen that the structural columns in this type of partition wall with a large door opening have great limitations. The stress at the connection between the structural columns and the main structure is large, and they will inevitably participate in the secondary internal force distribution of the main structure, resulting in local damage to the beams and slabs connected to the lower ends of the structural columns due to stress concentration.

[0005] Therefore, it is necessary to propose a more reasonable technical solution to solve the technical problems existing in the prior art. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a secondary steel structure which does not participate in the vertical load of the main body.

[0007] The solution adopted by the utility model to solve the technical problem is:

[0008] A secondary steel structure that does not participate in the vertical load of the main body, comprising a connection structure; the connection structure comprises a first steel column connected to the upper main structure and arranged vertically, a second steel column installed on the lower main structure and sleeved in the first steel column, and a flexible component installed on the lower main structure;

[0009] An annular gap is formed between the first steel column and the second steel column, and the flexible component is sleeved on the outer side of the second steel column and the top end thereof extends into the annular gap.

[0010] In some possible implementations, the connection structures are multiple groups and are arranged in parallel, and a connecting beam is provided between two adjacent groups of the steel columns.

[0011] In some possible implementations, a telescopic gap is formed between the steel column 1 and the underlying main structure.

[0012] In some possible implementations, the flexible component includes a flexible segment 1 located in the annular gap, and a flexible segment 2 connected to the bottom of the flexible segment 1 and integrally formed; the flexible segment 2 is arranged above the lower main structure and located in the telescopic gap.

[0013] In some possible implementations, when the flexible component is in an initial state, the outer side surface of the second flexible segment is coplanar with the outer side surface of the first steel column.

[0014] In some possible implementations, the length H of the flexible section 2 along the axial direction of the steel column is H=h+20 mm; wherein h is the thickness of the building surface layer in the lower main structure.

[0015] In some possible implementations, the length of the flexible segment 1 along the axial direction of the steel column 1 is 50-100 mm, and the thickness of the flexible segment 1 is 5-10 mm.

[0016] In some possible implementations, it also includes an embedded component 1 that is arranged at the bottom of the upper main structure and connected to the steel column 1; and an embedded component 2 that is arranged on the lower main structure and used to be installed on the steel column 2 and the flexible component.

[0017] In some possible implementations, the flexible component is made of any one of rubber, flexible resin, and high-resilience polyurethane foam;

[0018] In some possible implementations, the first steel column and the second steel column are coaxially arranged.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model effectively realizes the telescopic connection by the set of the first steel column and the second steel column, and the vertical load cannot be transmitted on the utility model through this setting;

[0021] By setting the flexible component, on the one hand, the steel column 1 and the steel column 2 can be formed into a whole, and at the same time, the displacement of the steel column 1 along its axial direction can be limited to a smaller range, and its out-of-plane rotation can be limited to a certain extent;

[0022] The utility model realizes telescopic connection through the first steel column and the second steel column, so that it does not participate in the secondary internal force redistribution of the main structure as a secondary structure, and can effectively ensure stability;

[0023] The utility model is made of steel structure, which has light weight, is convenient for on-site installation and construction, reduces on-site wet work, and effectively improves on-site construction progress;

[0024] The utility model has a simple structure and strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an axonometric view of the utility model;

[0026] Figure 2 It is a schematic diagram of the connection relationship between the first steel column, the second steel column, the upper main structure, the lower main structure, and the flexible component in the utility model;

[0027] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0028] Figure 4 for Figure 2 A top view of

[0029] Among them: 10, upper main structure; 20, lower main structure; 1, steel column one; 2, steel column two; 3, flexible component; 31, flexible segment one; 32, flexible segment two; 4, embedded part one; 5, embedded part two. DETAILED DESCRIPTION

[0030] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. The "first", "second" and similar words mentioned in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "one" and other similar words do not indicate a quantity limit, but indicate the existence of at least one. In the implementation of this application, "and / or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and / or B can indicate: A exists alone, A and B exist at the same time, and B exists alone. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more. For example, multiple positioning columns refer to two or more positioning columns. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0031] The utility model is described in detail below.

[0032] like Figure 1-Figure 4 As shown:

[0033] A secondary steel structure that does not participate in the vertical load of the main body, including a connection structure; the connection structure includes a steel column 1 connected to an upper main structure 10 and arranged vertically, a steel column 2 installed on a lower main structure 20 and sleeved in the steel column 1, and a flexible component 3 located on the lower main structure 20 and sleeved on the outside of the steel column 2; the steel column 1 and the steel column 2 are coaxially arranged and the two are close to each other to form an annular gap, and the top end of the flexible component 3 extends into the annular gap, that is, the top end of the steel column 2 extends into the annular gap; the flexible component 3 is pasted on the outside of the steel column 2;

[0034] In the connection structure, the top of the steel column 1 is connected to the upper main structure 10, the bottom of the steel column 2 is installed on the lower main structure 20, the steel column 1 and the steel column 2 are coaxially arranged, and the top of the steel column 2 extends into the steel column 1 and an annular gap is formed between the two, and the flexible component 3 is attached to the outer side of the steel column 2 and the top of the steel column 2 extends into the annular gap;

[0035] The cross sections of the steel column 1, the steel column 2, and the flexible component 3 are all in the shape of a square ring or a circular ring;

[0036] The steel column 1 and the steel column 2 are not directly connected to form an integral structure. When in use, the vertical load cannot be transferred through the connection structure through the flexible component 3, and does not participate in the secondary internal force redistribution of the main structure, thereby avoiding stress damage to the main structure.

[0037] When used as a secondary structural column at the corner, only a connecting structure is required;

[0038] When used as a secondary structure at a door opening with a large span and height, the connection structure is composed of multiple groups and is arranged in parallel. A connecting beam is provided between two adjacent groups of steel columns 1, and both ends of the connecting beam are respectively connected to steel column 1.

[0039] In some possible implementations, in order to ensure that the lower main structure 20 can adapt to the displacement of the steel column 1 after the steel column 1 is subjected to force, a telescopic gap is formed between the steel column 1 and the lower main structure 20.

[0040] In some possible embodiments, the flexible component includes a flexible segment 31 located in the annular gap and adhered to the outside of the steel column 2, and a flexible segment 32 connected to the bottom of the flexible segment 31 and integrally formed; the flexible segment 32 is adhered to the outside of the steel column 2 and located in the telescopic gap; the flexible segment 32 is arranged above the lower main structure 20.

[0041] Furthermore, the outer side surface of the flexible section 1 31 contacts the inner side surface of the steel column 1 , and the inner side surface of the flexible section 2 32 contacts the outer side surface of the steel column 2 2;

[0042] When the flexible component is in the initial state, the outer side surface of the flexible segment 2 32 is coplanar with the outer side surface of the steel column 1;

[0043] The flexible section 1 31 is located in the annular gap, so that the steel column 1 and the steel column 2 have good integrity. The flexible section 2 32 is arranged at the bottom of the steel column 1 and its outer side surface is coplanar with the outer side surface of the steel column 1, so that the connection between the flexible section 1 31 and the flexible section 2 32 will form a support surface. At the same time, the setting of the flexible section 2 32 will effectively limit the downward movement of the steel column 1.

[0044] In some possible implementations, the length H of the flexible section 2 32 along the axial direction of the steel column 1 is H=h+20mm; wherein h is the thickness of the building surface layer in the lower main structure 20; the thickness of the building surface layer described here is the thickness of the floor slab at that location;

[0045] In some possible implementations, the length of the flexible segment 31 along the axial direction of the steel column 1 is L=50-100 mm, and the thickness of the flexible segment 31 is a, a=5-10 mm.

[0046] In some possible implementations, in order to effectively install the steel column 1 and the steel column 2;

[0047] It also includes an embedded part 14 disposed at the bottom of the upper main structure 10 and connected to the steel column 1; an embedded part 25 disposed on the lower main structure 20 and used to be installed on the steel column 2;

[0048] The embedded part 1 4 and the embedded part 2 5 can be installed on the corresponding main structure by pre-embedded method; or they can be installed by post-embedded reinforcement after the main structure is cast; which will not be described in detail here;

[0049] Specifically, the steel column 1 is connected and fixed to the embedded part 4 by welding;

[0050] The steel column 2 is connected and fixed to the embedded part 5 by welding;

[0051] In some possible implementations, in order to make the flexible component 3 have good deformation ability, the flexible component 3 is made of any one of rubber, flexible resin, and high-resilience polyurethane foam.

[0052] The utility model realizes telescopic connection through steel column 1 and steel column 2, so that it does not participate in the secondary internal force redistribution of the main structure as a secondary structure, and can effectively ensure stability; the utility model is made of steel structure, its own weight is light, it is convenient for on-site installation and construction, reduces on-site wet operations, and effectively improves on-site construction progress.

[0053] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A secondary steel structure that does not participate in the vertical load of the main body, characterized in that: It includes a connection structure; the connection structure includes a steel column 1 connected to the upper main structure and arranged vertically, a steel column 2 installed on the lower main structure and sleeved inside the steel column 1, and a flexible component located above the lower main structure and sleeved on the outside of the steel column 2; an annular gap is formed between the steel column 1 and the steel column 2, and the top end of the flexible component sleeve extends into the annular gap.

2. A secondary steel structure structure that does not participate in the vertical load of the main body according to claim 1, characterized in that: The connection structure is composed of multiple groups and is arranged in parallel, and a connecting beam is arranged between two adjacent groups of steel columns.

3. A secondary steel structure structure not participating in the vertical load of the main body according to claim 1, characterized in that: A telescopic gap is formed between the first steel column and the lower main structure.

4. A secondary steel structure structure not participating in the vertical load of the main body according to claim 1, characterized in that: The flexible component includes a flexible segment 1 located in the annular gap and a flexible segment 2 connected to the bottom of the flexible segment 1 and integrally formed; the flexible segment 2 is arranged above the lower main structure and located in the telescopic gap.

5. A secondary steel structure structure not participating in the vertical load of the main body according to claim 4, characterized in that: When the flexible component is in an initial state, the outer side surface of the flexible segment 2 is coplanar with the outer side surface of the steel column 1.

6. A secondary steel structure structure not participating in the vertical load of the main body according to claim 4, characterized in that: The length H of the flexible section 2 along the axial direction of the steel column is H=h+20mm; wherein h is the thickness of the building surface layer in the lower main structure.

7. A secondary steel structure structure not participating in the vertical load of the main body according to claim 4, characterized in that: The length of the flexible section 1 along the axial direction of the steel column 1 is 50-100 mm, and the thickness of the flexible section 1 is 5-10 mm.

8. A secondary steel structure structure not participating in the vertical load of the main body according to any one of claims 1 to 7, characterized in that: It also includes an embedded part 1 which is arranged at the bottom of the upper main structure and connected to the steel column 1; and an embedded part 2 which is arranged on the lower main structure and used for installation on the steel column 2.

9. A secondary steel structure that does not participate in the vertical load of the main body according to any one of claims 1 to 7, characterized in that: The flexible component is made of any one of rubber, flexible resin and high-resilience polyurethane foam.

10. A secondary steel structure structure not participating in the vertical load of the main body according to claim 9, characterized in that: The first steel column and the second steel column are coaxially arranged.

Images