Node structure for bearing supporting beam

Abstract

The node structure for bearing the supporting beam comprises a connecting structure and the supporting beam, the supporting beam is connected with the connecting structure, and the supporting beam and the connecting structure are arranged in a foundation pit; wherein a supporting structure is arranged on the lower portion of the connecting structure, the supporting structure is connected with the connecting structure, and the supporting structure is arranged at the joint of the connecting structure and the supporting beam; the supporting beam is at least partially located on the supporting structure, and the supporting structure is used for supporting the supporting beam. According to the node structure for bearing the supporting beam, at least part of the supporting beam can be erected on the supporting structure and then connected with the connecting structure, the stability of the connecting position of the supporting beam and the connecting structure can be improved, the connecting strength of the supporting beam and the connecting structure can be improved, the overall stability of a foundation pit is improved, potential safety hazards are reduced, and the construction difficulty is reduced; maintenance is simple, and construction efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of underground structure engineering, and particularly relates to a node structure for supporting a support beam. Background Art

[0002] With the continuous development of modern transportation and the needs of people's travel, the role of subway transportation has become increasingly important. Subway station foundations are generally long and narrow. In a subway foundation pit, there are mainly steel supports, support beams, and steel columns. Usually, when the width of the foundation pit exceeds 20m, a support beam needs to be set. The support beam is connected above the steel support and the steel column. The support beam is arranged horizontally and is mainly used to bear the lateral load. The steel column and the steel support are arranged longitudinally. The steel support is mainly used to support the soil and rock around the foundation pit to prevent the collapse of the foundation pit wall surface, and the steel column is mainly used to bear the longitudinal load.

[0003] Soil pressure and construction load are likely to cause the deformation of the foundation pit, and the stability of the support structure set around the foundation pit is reduced. Therefore, a connection structure is set locally in the foundation pit. The connection structure can effectively support and fix the foundation pit slope, prevent the deformation of the foundation pit and the collapse of the soil body, improve the stability of the foundation pit. The connection structure is arranged horizontally with the steel support. One end of the support beam is connected to the connection structure, and the other end is connected to the steel support.

[0004] However, at the connection between the support beam and the connection structure, it is not easy to fix the support beam to the connection structure, which easily causes the support beam to be in a cantilever state, resulting in poor stability at the connection between the support beam and the connection structure, potential safety hazards in the foundation pit, difficult construction, difficult maintenance, and low construction efficiency.

[0005] Therefore, there is room for further improvement in the fixation between the support beam and the connection structure in the prior art. Summary of the Utility Model

[0006] In view of this, aiming at the technical problems in the prior art that in a subway foundation pit, it is not easy to fix the support beam to the connection structure, resulting in poor stability at the connection between the support beam and the connection structure, potential safety hazards in the foundation pit, difficult construction, difficult maintenance, and low construction efficiency, this application provides a node structure for supporting a support beam. By setting a support structure at the connection between the connection structure and the support beam, the support beam can be placed on the support structure, which can improve the stability at the connection between the support beam and the connection structure, facilitate construction, simplify maintenance, reduce potential safety hazards, and improve construction efficiency.

[0007] To achieve the above object, this application provides the following technical solution: A node structure for supporting a support beam, including a connection structure and a support beam. The support beam is connected to the connection structure, and the support beam and the connection structure are arranged in a foundation pit;

[0008] Wherein, a support structure is provided at the lower part of the connection structure, the support structure is connected to the connection structure, and the support structure is arranged at the connection of the connection structure and the support beam;

[0009] At least a part of the support beam is located on the support structure, and the support structure is used to support the support beam.

[0010] Compared with the prior art, the node structure for supporting the support beam in the present application is that a support structure is provided at the lower part of the connection structure. The support structure is connected to the connection structure, the support structure is arranged at the connection of the connection structure and the support beam, and at least a part of the support beam is located on the support structure. Therefore, the support structure in the present application can play a role in supporting the support beam. When the support beam is connected to the connection structure, at least a part of the support beam can be placed on the support structure and then connected to the connection structure, which can improve the stability at the connection of the support beam and the connection structure, increase the connection strength between the support beam and the connection structure, improve the overall stability of the foundation pit, reduce stress concentration at the connection, reduce the construction difficulty, is easy to maintain, and improve the construction efficiency.

[0011] Further, the support structure further includes tensile members. There are multiple tensile members, and the multiple tensile members are arranged at equal intervals. The tensile members are arranged on the longitudinal extension line of the support structure.

[0012] In some embodiments of the present application, the connection structure includes a transverse member. The transverse member is connected to the support structure, and at least a part of the transverse member is located inside the support structure;

[0013] The transverse member is arranged outside the tensile member, and the transverse member cooperates with the tensile member to realize the support of the support beam by the support structure.

[0014] Further, the transverse member includes a second support rib and a first support rib;

[0015] The second support rib is connected to the first support rib. At least a part of the second support rib is located inside the support structure. The second support rib is arranged outside the tensile member, and the second support rib is used to reinforce the support structure.

[0016] Further, one end of the first support rib is vertically connected to the second support rib, and the other end is a hook structure. The first support rib is used to reinforce the connection structure.

[0017] Further, the transverse member further includes a third support rib and a fourth support rib;

[0018] One end of the third support rib is vertically connected to the second support rib, and the other end is vertically connected to the fourth support rib. The third support rib is located within the support structure and is used to reinforce the support structure.

[0019] Further, one end of the fourth support rib away from the third support rib extends towards the connection structure and is connected to the connection structure, and at least a part of the fourth support rib is located within the connection structure.

[0020] Further, there is at least one support beam, and two adjacent support beams are arranged at intervals.

[0021] A node structure for supporting a support beam according to the present application has at least the following technical effects:

[0022] 1. By providing tensile members, there are multiple tensile members, and the multiple tensile members are arranged at equal intervals. The tensile members are arranged on the longitudinal extension line of the support structure. After pouring concrete and waiting for the concrete to harden, the distance between the tensile members can be fixed, reducing the bending and deformation of the tensile members. Good bonding strength is established between the concrete and the tensile members, enabling them to jointly bear external pressure, improving the bearing capacity of the support structure, and extending the durability of the support structure.

[0023] 2. By providing transverse members, the transverse members are connected to the support structure, at least a part of the transverse members is located within the support structure, the transverse members are arranged outside the tensile members, and the transverse members cooperate with the tensile members to realize the support of the support structure for the support beam, improving the tensile strength of the support structure, increasing the overall bearing capacity of the support structure, effectively resisting the crack propagation of the concrete, improving the toughness and durability of the connection structure and the support structure, increasing the stability of the connection structure and the support structure under external forces such as earthquakes, making the stress of the connection structure and the support structure more uniform, improving the integrity and stability of the connection structure and the support structure, and ensuring the safety and reliability of the connection structure and the support structure during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a structural plan view of a node structure for supporting a support beam provided in an embodiment of the present application;

[0025] Figure 2 is Figure 1 the node detail drawing of A in

[0026] Figure 3 is Figure 2 the sectional view of B - B in

[0027] Figure 4 is a structural schematic diagram of a transverse member of a node structure for supporting a support beam provided in an embodiment of the application.

[0028] Reference numerals:

[0029] 1. Connection structure; 2. Support beam; 3. Support structure; 4. Steel support;

[0030] 11. Transverse member; 31. Tensile member;

[0031] 111. First support rib; 112. Second support rib; 113. Third support rib; 114. Fourth support rib. Detailed implementation manners

[0032] In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure will be described in detail, clearly, and completely below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not used to limit the present disclosure.

[0033] In the description of the present application, if the first and second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0034] Those skilled in the art should understand that in the disclosure of the present application, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present application.

[0035] The following further describes the present application in detail with reference to the accompanying drawings. See, for example, Figures 1 to 4 Description.

[0036] A node structure for supporting a support beam provided in this embodiment is applied in building construction, such as Figures 1 to 4As shown in the figure, it includes a connection structure 1, a support beam 2, and a steel support 4. The support beam 2 is connected to the connection structure 1. The support beam 2 and the connection structure 1 are arranged in the foundation pit. There is at least one support beam 2, and two adjacent support beams 2 are arranged at intervals. The support beam 2 is made by tying steel bars and pouring concrete. The support beam 2 is a steel continuous beam. The support beam 2 bears the lateral load and transfers the load to the columns or other support points. The support beam 2 can also enhance the stability and load-bearing capacity of the structure. The connection structure 1 is a concrete support. The connection structure 1 can be used to support the soil and rocks around the subway foundation pit, prevent the collapse of the foundation pit wall surface, ensure the stability and safety of the foundation pit, and can also create a safe and stable construction space, provide necessary working space for construction personnel and equipment, and ensure the smooth progress of construction. The steel support 4 is arranged on one side of the connection structure 1. The side of the support beam 2 away from the connection structure 1 is connected to the steel support 4. The steel support 4 is used to support the support beam 2. The steel support 4 can bear the vertical and horizontal loads suffered by the building structure and transfer the load to the foundation. The steel support 4 can also improve the seismic performance of the building structure and reduce the impact of external forces such as earthquakes on the building. In the embodiment of the present application, a support structure 3 is provided at the lower part of the connection structure 1. The support structure 3 is set as a support protrusion. The support structure 3 is connected to the connection structure 1. The support structure 3 is arranged at the connection of the connection structure 1 and the support beam 2. During construction, first place at least part of the support beam 2 on the support structure 3, and then tie and connect it with the steel bars in the connection structure 1. At least part of the steel bars in the support beam 2 are located in the connection structure 1, which can increase the connection strength between the support beam 2 and the connection structure 1, reduce the stress concentration at the connection, increase the load-bearing capacity of the support beam 2. The support structure 3 can play a role in preventing the support beam 2 from slipping, ensure the firm and reliable connection between the connection structure 1 and the support beam 2, avoid loosening and falling off at the connection, and can also make the connection of the support beam 2 more convenient, reduce the construction difficulty, be easy to maintain, and improve the construction efficiency.

[0037] Specifically, as Figure 3 shown in the figure, the support structure 3 includes a tensile member 31. The tensile member 31 is a longitudinal steel bar. There are multiple tensile members 31, and multiple tensile members 31 are arranged at equal intervals. The tensile member 31 is arranged on the longitudinal extension line of the support structure 3. The tensile member 31 is used to improve the tensile strength of the support structure 3, increase the overall load-bearing capacity of the structure, can increase the overall stiffness of the support structure 3, improve the bending resistance and stability of the structure, and can also effectively resist the crack expansion of the concrete, improve the toughness and durability of the structure.

[0038] Furthermore, as Figure 3As shown, the connection structure 1 includes a transverse member 11. The transverse member 11 is connected to the support structure 3, and at least part of the transverse member 11 is located within the support structure 3. The transverse member 11 is arranged outside the tensile member 31. The transverse member 11 cooperates with the tensile member 31 to enable the support structure 3 to support the support beam 2. The transverse member 11 is a steel bar, and the transverse member 11 can effectively enhance the shear resistance and load-bearing capacity of the connection structure 1. The transverse member 11 cooperates with the tensile member 31 to enable the support structure 3 to support the support beam 2. The transverse member 11 and the tensile member 31 are fixed by tying on the outside of the tensile member 31, and there is a certain distance between two adjacent transverse members 11, and this distance is calculated according to the on-site situation. The transverse member 11 can improve the tensile strength of the support structure 3, increase the overall load-bearing capacity of the support structure 3, effectively resist the crack expansion of the concrete, improve the toughness and durability of the connection structure 1 and the support structure 3, increase the stability of the connection structure 1 and the support structure 3 under the action of external forces such as earthquakes, and also make the stress of the connection structure 1 and the support structure 3 more uniform, improve the integrity and stability of the connection structure 1 and the support structure 3, and ensure the safety and reliability of the connection structure 1 and the support structure 3 during use. Among them, the connection structure 1 is also provided with tensile members 31, which are arranged at intervals. The tensile members 31 and the transverse steel bars are tied, concrete is poured, and then formwork is supported for fixation. After the concrete reaches a certain design strength, the formwork is removed. Pouring concrete can prevent the tensile members 31 and the transverse members 11 from bending or deforming, establish good bonding strength with the concrete, be able to jointly bear external pressure, improve the load-bearing capacity of the connection structure 1 and the support structure 3, and extend the durability of the connection structure 1 and the support structure 3.

[0039] Furthermore, as Figure 4As shown in the figure, the transverse member 11 includes a first support rib 111, a second support rib 112, a third support rib 113 and a fourth support rib 114. One end of the second support rib 112 is vertically connected to the first support rib 111, and the other end is vertically connected to the third support rib 113. The second support rib 112 is at least partially located within the support structure 3. The second support rib 112 is disposed outside the tensile member 31. The second support rib 112 is used to reinforce the support structure 3, increase the load-bearing capacity of the support structure 3, and extend the durability of the support structure 3 and the connection structure 1. One end of the first support rib 111 is vertically connected to the second support rib 112, and the other end is a hook structure. The first support rib 111 can better connect to the tensile member 31, increase the adhesion between the tensile member 31 and the first support rib 111, and improve the overall mechanical performance of the connection structure 1. Among them, one end of the third support rib 113 is vertically connected to the second support rib 112, and the other end is vertically connected to the fourth support rib 114. The third support rib 113 is located within the support structure 3. The third support rib 113 is used to reinforce the support structure 3. One end of the fourth support rib 114 away from the third support rib 113 extends towards the connection structure 1 and is connected to the connection structure 1. The fourth support rib 114 is at least partially located within the connection structure 1. The third support rib 113 and the second support rib can effectively increase the flexural load-bearing capacity of the connection structure 1, improve the overall load-bearing capacity of the support structure 3, limit the crack propagation of the support structure 3 during the loading process, and improve the durability and service life of the support structure 3.

[0040] The above has introduced the present application in detail. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the present application and its core idea. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements and modifications can still be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A node structure for supporting a support beam, characterized in that, It includes a connecting structure (1) and a supporting beam (2). The supporting beam (2) is connected to the connecting structure (1), and the supporting beam (2) and the connecting structure (1) are arranged in a foundation pit; Wherein, a supporting structure (3) is provided at the lower part of the connecting structure (1). The supporting structure (3) is connected to the connecting structure (1), and the supporting structure (3) is arranged at the connection between the connecting structure (1) and the supporting beam (2); At least part of the supporting beam (2) is located on the supporting structure (3), and the supporting structure (3) is used to support the supporting beam (2).

2. The node structure for supporting a supporting beam according to claim 1, characterized in that The supporting structure (3) further includes tensile members (31). There are multiple tensile members (31), and the multiple tensile members (31) are arranged at equal intervals. The tensile members (31) are arranged on the longitudinal extension line of the supporting structure (3).

3. The node structure for supporting a supporting beam according to claim 2, characterized in that The connecting structure (1) includes a transverse member (11). The transverse member (11) is connected to the supporting structure (3), and at least part of the transverse member (11) is located within the supporting structure (3); The transverse member (11) is arranged outside the tensile member (31), and the transverse member (11) cooperates with the tensile member (31) to realize the support of the supporting structure (3) for the supporting beam (2).

4. The node structure for supporting a supporting beam according to claim 3, characterized in that The transverse member (11) includes a second support bar (112) and a first support bar (111); The second support bar (112) is connected to the first support bar (111). At least part of the second support bar (112) is located within the supporting structure (3). The second support bar (112) is arranged outside the tensile member (31), and the second support bar (112) is used to reinforce the supporting structure (3).

5. The node structure for supporting a supporting beam according to claim 4, characterized in that One end of the first support bar (111) is perpendicularly connected to the second support bar (112), and the other end is a hook structure. The first support bar (111) is used to reinforce the connecting structure (1).

6. The node structure for supporting a supporting beam according to claim 4, characterized in that The transverse member (11) further includes a third support bar (113) and a fourth support bar (114); One end of the third support bar (113) is perpendicularly connected to the second support bar (112), and the other end is perpendicularly connected to the fourth support bar (114). The third support bar (113) is located within the supporting structure (3), and the third support bar (113) is used to reinforce the supporting structure (3).

7. The node structure for supporting a supporting beam according to claim 6, characterized in that One end of the fourth support rib (114) away from the third support rib (113) extends towards the connection structure (1) and is connected to the connection structure (1), and at least part of the fourth support rib (114) is located within the connection structure (1).

8. The node structure for supporting a support beam according to claim 1, wherein There is at least one support beam (2), and two adjacent support beams (2) are arranged at intervals.

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