A sway bracing for structural design

Abstract

The utility model relates to a kind of structural design swing prop, including bottom foundation and steel column being set on bottom foundation;The recess is provided on the upper surface of bottom foundation, and the embedded steel plate is provided on the upper surface of the recess, and the bottom plate of steel column is connected with bottom foundation by anchor bolt;Pad is provided below the bottom plate, and the pad is located between bottom plate and embedded steel plate;A circle of limit steel plate is provided on the embedded steel plate;The gap formed by the limit steel plate and the side wall of the recess is filled with flexible waterproof material.Compared with prior art, the utility model is connected by innovative structure, which optimizes the column foot connection mode, realizes the bending moment release of column foot while maintaining the vertical bearing capacity of prop, eliminates the defect that bending moment cannot be effectively released in traditional column foot rigid connection under seismic working condition, and improves the seismic performance of prop. Connection node is no longer a weak part of structure.

Description

Technical Field

[0001] This utility model relates to the field of industrial and civil building technology, and in particular to a swaying support for structural design. Background Technology

[0002] In the field of industrial and civil buildings, especially in warehouses and industrial plants, the moment transfer problem at the connection between the rigid frame of the plant and the column base of the pipe support is a key factor affecting the structural safety and durability.

[0003] Traditionally, the connection between the column bases of factory building frames and pipe supports is typically a rigid connection. This means that structural measures are used to create a completely fixed node between the column base and the foundation. Common structural forms include embedded, inserted, or externally enclosed rigid connection column bases. Its characteristic is that it completely transfers bending moment, shear force, and axial force, and is treated as a fixed-end constraint in structural calculations. However, the above-mentioned rigid connection method for column bases often has the following disadvantages:

[0004] 1) Seismic performance defects: Under seismic conditions, the bending moment at the rigid connection node at the column base cannot be effectively released, making the connection node a weak point in the structure and prone to structural damage, such as foundation uplift or column buckling failure.

[0005] 2) Fatigue damage risk: Cyclic vibration loads of industrial equipment will generate significant bending moment accumulation at the rigid connection of the column base, resulting in stress concentration at the interface between the column base plate and the concrete foundation. Long-term action can easily lead to fatigue failure or foundation cracking.

[0006] 3) High construction cost: Rigid connections at column bases require larger concrete foundations, leading to higher foundation costs; large steel column cross-sections are needed to meet bending stiffness requirements; high-quality anchor bolts and a large quantity are required at the column bases; and numerous stiffening plates are also necessary. This results in high steel costs.

[0007] 4) Installation accuracy is sensitive: high requirements for on-site welding quality; small allowable deviation for foundation embedded parts.

[0008] In view of the above, this utility model is hereby proposed. Utility Model Content

[0009] The main purpose of this utility model is to provide a rocking support for structural design to solve the technical defects of traditional rigid connections, such as excessive force, high material consumption, and easy damage.

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0011] A rocking strut for structural design includes a bottom foundation and a steel column set on the bottom foundation;

[0012] The bottom foundation has a groove on its upper surface, and a pre-embedded steel plate is provided on the upper surface of the groove. The bottom plate of the steel column is connected to the bottom foundation by anchor bolts.

[0013] A pad is provided below the base plate, and the pad is located between the base plate and the embedded steel plate; a limiting steel plate is provided on the embedded steel plate;

[0014] The gap formed between the limiting steel plate and the sidewall of the groove is filled with flexible waterproof material.

[0015] Preferably, the thickness of the pad is the same as the thickness of the groove.

[0016] Preferably, a gap is provided between the limiting steel plate and the pad.

[0017] Preferably, the embedded steel plate is fixed to the upper surface of the groove by anchor bars.

[0018] Preferably, a pad is provided at the connection between the anchor bolt and the base plate.

[0019] Preferably, the limiting steel plate and the embedded steel plate are connected by a weld.

[0020] Preferably, the pad and the base plate are connected by welding.

[0021] Preferably, a stiffening rib is provided between the base plate and the bottom of the steel column.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1) Through innovative structural connections, the column base connection method was optimized, achieving moment release at the column base while maintaining the vertical bearing capacity of the column. This eliminates the defect of traditional rigid column base connections where moment cannot be effectively released under seismic conditions, thus improving the seismic performance of the column. The connection node no longer becomes a weak point in the structure.

[0024] 2) Solves the problem of weld fatigue cracking and foundation micro-vibration damage caused by cyclic vibration loads in traditional rigid column base connections. Significantly extends the service life of column base connection nodes under cyclic vibration loads.

[0025] 3) Compared to traditional rigid column base connections, this method reduces construction costs. The foundation does not need to resist bending moments, allowing for smaller foundation dimensions and reduced costs; the steel column does not need additional bending moment resistance, enabling smaller column cross-sectional dimensions; and the column base connection can use ordinary bolts or a small number of anchors, reducing the requirements for anchor material and quantity. The number of stiffening ribs is also reduced, lowering stiffening rib costs.

[0026] 4) Breaks the traditional requirement for ultra-high precision in rigid column base connections. Reduces installation accuracy requirements, decreases rework rate, and improves construction efficiency.

[0027] 5) By setting up steel plates embedded in the grooves on the upper surface of the foundation, the concentrated load of the superstructure can be effectively diffused, reducing the local compressive stress of the foundation concrete and preventing the foundation from being crushed due to stress concentration.

[0028] 6) By setting a limiting steel plate on the upper part of the pre-embedded steel plate and reserving deformation gaps, the horizontal displacement of the column base can be effectively constrained, preventing excessive displacement of the column base.

[0029] 7) Particularly suitable for earthquake-prone areas or for factory frame systems and pipe support systems that need to adapt to equipment vibration.

[0030] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0031] Figure 1 This is a structural schematic diagram of a rocking support column for structural design, provided for an embodiment of the present utility model.

[0032] Figure 2 for Figure 1 Sectional view of AA.

[0033] Figure 3 for Figure 1 Cross-sectional view of the middle section (BB).

[0034] Figure 4 This is a structural schematic diagram of the base plate and pad plate of a rocking support for a structural design provided in an embodiment of the present utility model.

[0035] Figure 5 This is a structural schematic diagram of a pre-embedded steel plate and a limiting steel plate in a rocking support for structural design, provided for an embodiment of this utility model.

[0036] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0037] 1. Bottom foundation; 2. Steel column; 3. Groove; 4. Embedded steel plate; 5. Base plate; 6. Anchor bolt; 7. Pad; 8. Limiting steel plate; 9. Flexible waterproof material; 10. Anchor bar; 11. Pad plate; 12. Stiffening rib; 13. Top plate; 14. Bolt hole. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0039] like Figure 1-5 As shown in the figure, the present invention provides a swaying support for structural design, including a bottom foundation 1 and a steel column 2 set on the bottom foundation 1; wherein, the bottom of the steel column 2 is a bottom plate 5, and the top of the steel column 2 is a top plate 13, on which a working pipe can be supported.

[0040] In this utility model, a groove 3 of a certain depth is reserved within the connection range between the upper surface of the bottom foundation 1 and the base plate 5 of the steel column 2 (the depth of the groove 3 is equal to the thickness of the pad 7, which is generally 50mm). The size of the groove 3 is the same as the size of the base plate 5 of the steel column 2. An embedded steel plate 4 is provided on the upper surface of the groove 3. The base plate 5 of the steel column 2 is connected to the bottom foundation 1 by anchor bolts 6. Bolt holes 14, pads 7, and pads 11 are provided on the base plate 5. The anchor bolts 6 pass through the bolt holes 14 and the pads 11. The pads 7 are located between the base plate 5 and the embedded steel plate 4. A limiting steel plate 8 is provided on the embedded steel plate 4. The gap formed between the limiting steel plate 8 and the side wall of the groove 3 is filled with flexible waterproof material 9.

[0041] This invention optimizes the column base connection method through an innovative structural connection, achieving moment release at the column base while maintaining the vertical bearing capacity of the column. This eliminates the defect of traditional rigid column base connections where moment cannot be effectively released under seismic conditions, thus improving the seismic performance of the column. The connection node no longer becomes a weak point in the structure. Simultaneously, it solves the problems of weld fatigue cracking and micro-seismic damage to the foundation 1 caused by cyclic vibration loads in traditional rigid column base connections. This significantly extends the service life of the column base connection node under cyclic vibration loads.

[0042] Compared to the traditional rigid connection method for column bases, this utility model can reduce construction costs. The bottom foundation 1 does not need to resist bending moments, allowing for a smaller foundation size and saving on foundation costs; the steel column 2 does not need additional resistance to bending moments, allowing for a smaller cross-sectional size; the column base connection can use ordinary bolts or a small number of anchor bolts 6, reducing the material and quantity requirements for the anchor bolts 6. The number of stiffening ribs 12 is reduced, thus lowering the cost of the stiffening ribs 12.

[0043] Breaking away from the traditional requirements for ultra-high precision in rigid column base connections, this design reduces installation accuracy requirements, decreases rework rates, and improves construction efficiency.

[0044] In a preferred embodiment of this utility model, a pre-embedded steel plate 4 is provided on the upper surface of the groove 3, and the pre-embedded steel plate 4 is fixed to the bottom foundation 1 by the anchor bar 10 at its lower part. A limiting steel plate 8 is provided on the upper part of the pre-embedded steel plate 4, and the two are connected by a weld. The limiting steel plate 8 is provided on all four sides, and a certain gap is reserved between it and the pad 7.

[0045] In this invention, by pre-embedding a steel plate 4 within the groove 3, the concentrated load of the upper structure can be effectively diffused, reducing the local compressive stress in the foundation concrete and preventing crushing damage to the foundation due to stress concentration. Simultaneously, by setting a limiting steel plate 8 above the pre-embedded steel plate 4 and reserving deformation gaps, the horizontal displacement of the column base can be effectively constrained, preventing excessive displacement of the column base.

[0046] In a preferred embodiment of this utility model, the bottom of the steel column 2 is welded to the stiffening rib 12 and the base plate 5, the stiffening rib 12 is welded to the base plate 5, and the square or round thick pad 7 is welded to the base plate 5 of the steel column 2. The gap formed by the perimeter of the limiting steel plate 8 and the side wall of the bottom foundation 1 is filled with flexible waterproof material 9.

[0047] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0048] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0049] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need further definition and explanation in subsequent figures.

Claims

1. A rocking strut for structural design, characterized in that, This includes the bottom foundation and the steel columns set on the bottom foundation; The bottom foundation has a groove on its upper surface, and a pre-embedded steel plate is provided on the upper surface of the groove. The bottom plate of the steel column is connected to the bottom foundation by anchor bolts. A pad is provided below the base plate, and the pad is located between the base plate and the embedded steel plate; a limiting steel plate is provided on the embedded steel plate; The gap formed between the limiting steel plate and the sidewall of the groove is filled with flexible waterproof material.

2. The rocking support column for structural design according to claim 1, characterized in that, The thickness of the pad is the same as the thickness of the groove.

3. A rocking support column for structural design according to claim 2, characterized in that, A gap is provided between the limiting steel plate and the pad block.

4. A rocking support column for structural design according to claim 3, characterized in that, The embedded steel plate is fixed to the upper surface of the groove by anchor bars.

5. A rocking support column for structural design according to claim 4, characterized in that, A pad is installed at the connection between the anchor bolt and the base plate.

6. A rocking support column for structural design according to claim 5, characterized in that, The limiting steel plate and the embedded steel plate are connected by a weld.

7. A rocking support column for structural design according to claim 6, characterized in that, The pad and the base plate are connected by welding.

8. A rocking support column for structural design according to claim 7, characterized in that, A stiffening rib is provided between the base plate and the bottom of the steel column.

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