Temporary support method for controlling and positioning steel structure underground steel column

Abstract

The application discloses a kind of temporary support method of steel structure underground stiff steel column control positioning.It includes the following steps: S1, two ear plates are symmetrically welded in the two side surfaces of steel column head;S2, transverse support assembly is made, transverse support assembly includes outer sleeve, inner sleeve, Y-shaped plate and first connecting plate, inner sleeve is sleeved with outer sleeve and is connected by bolt, the outer end of inner sleeve and outer sleeve is respectively fixed with Y-shaped plate, the open end of Y-shaped plate is fixed with first connecting plate;S3, longitudinal support assembly is made;S4, transverse support assembly and longitudinal support assembly are installed;S5, total station is used to coordinate re-measurement to the steel column that has been completed fixed, and a whole support system is formed.The application improves the stability of underground stiff steel column as a whole, reduces the influence of complex construction environment on the installation accuracy of steel column, improves the construction quality on site, improves construction accuracy, and improves safety.

Description

Technical Field

[0001] This invention relates to steel structure construction, and in particular to a temporary support method for controlling and positioning underground stiffened steel columns in steel structures. Background Technology

[0002] Currently, reinforced steel columns are becoming increasingly common in the basements of large venues. In building installation, anchor bolts are often used to fix the reinforced steel columns in the basement. However, anchor bolts only fix the lower end of the steel column, leaving the upper part unfixed, which fails to form a unified support system and affects stability.

[0003] Chinese utility model application No. 201820394156.6 discloses a basement stiffening steel column, which uses anchor bolts to fix the basement stiffening steel column. In the short period of time after the underground stiffening column is installed, the installation accuracy of the underground stiffening steel column will be affected by the lack of steel beam connection between the columns and the need for reinforcement around the steel column before pouring concrete and other related construction procedures. Summary of the Invention

[0004] The present invention aims to solve the above-mentioned technical problems, thereby providing a temporary support method for controlling and positioning underground stiffened steel columns of steel structures, improving the overall stability of underground stiffened steel columns and improving construction accuracy.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows:

[0006] A temporary support method for controlling the positioning of underground stiffened steel columns in steel structures includes the following steps:

[0007] S1. Two ear plates are symmetrically welded to the two sides of the steel column head;

[0008] S2. Fabricate horizontal support components

[0009] The lateral support assembly includes an outer sleeve, an inner sleeve, a Y-shaped plate, and a first connecting plate. The inner sleeve is fitted onto the outer sleeve and connected by bolts. The outer ends of the inner sleeve and the outer sleeve are respectively fixed to Y-shaped plates, and the open end of the Y-shaped plate is fixed to the first connecting plate.

[0010] S3. Fabricate longitudinal support components

[0011] The longitudinal support assembly includes an outer sleeve, an inner sleeve, and a second connecting plate, with the second connecting plate fixed to both ends of the outer sleeve and the inner sleeve respectively;

[0012] S4. Installation of lateral and longitudinal support components

[0013] The transverse support assembly is placed between two transversely adjacent steel columns, and the two first connecting plates of the transverse support assembly are respectively connected to the ear plates of the steel columns. The longitudinal support assembly is placed between two longitudinally adjacent steel columns, and the two second connecting plates of the longitudinal support assembly are respectively connected to the ear plates of the steel columns.

[0014] S5. Use a total station to remeasure the coordinates of the fixed steel columns. If there are deviations that exceed the design and specification requirements, recalibrate the steel columns to form a unified support system.

[0015] Compared with the prior art, the present invention, which adopts the above technical solution, has the following beneficial effects:

[0016] It improves the overall stability of underground rigid steel columns, reduces the impact of complex on-site construction environment on the installation accuracy of steel columns, improves on-site construction quality, construction accuracy, and safety.

[0017] Furthermore, the optimized solution of the present invention is:

[0018] The outer ends of the outer sleeve and the inner sleeve are closed.

[0019] The outer sleeve and inner sleeve have longitudinal elongated holes in their bodies, and bolts are inserted into these elongated holes.

[0020] The first connecting plate of the lateral support assembly is parallel to the end face of the outer sleeve or inner sleeve.

[0021] The surface of the second connecting plate of the longitudinal support assembly is perpendicular to the end face of the outer sleeve or inner sleeve. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the steel column and ear plate according to an embodiment of the present invention;

[0024] Figure 3 for Figure 2 The left view;

[0025] Figure 4 This is a front view of the lateral support component according to an embodiment of the present invention;

[0026] Figure 5 for Figure 4 AA section view;

[0027] Figure 6 for Figure 4 BB cross-sectional view;

[0028] Figure 7 This is a front view of the longitudinal support component according to an embodiment of the present invention;

[0029] Figure 8 for Figure 7 CC section view.

[0030] In the diagram: 1. Steel column; 2. Ear plate; 3. Outer sleeve; 4. Inner sleeve; 5. Y-shaped plate; 6. First connecting plate; 7. Bolt; 8. Second connecting plate. Detailed Implementation

[0031] 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.

[0032] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0033] See Figures 1-8 This embodiment provides a temporary support method for controlling the positioning of underground stiffened steel columns in steel structures, which is carried out according to the following steps:

[0034] S1. Four steel columns 1 are arranged in a rectangular pattern. The cross-section of the steel column 1 is square. Two ear plates 2 are symmetrically welded on two sides of the column head of each steel column 1. Assuming that the width of the four sides of the column head of the steel column 1 is L, two ear plates 2 are set on one side of the column head of the steel column 1 at a distance of L / 4 from the two side lines. The upper surface of the ear plate 2 is 50mm away from the top cover plate of the steel column 1. According to the arrangement of the steel columns 1 in the upper support system, the ear plates 2 are symmetrically welded. Four ear plates 2 of the same specification are welded to each steel column 1. The specifications of the ear plate 2 are 185×20×295mm and four mounting holes with a diameter of 26mm and a spacing of 80mm are drilled.

[0035] S2. Fabricate horizontal support components

[0036] The lateral support assembly mainly consists of an outer sleeve 3, an inner sleeve 4, a Y-shaped plate 5, a first connecting plate 6, and bolts 7. The outer sleeve 3 and the inner sleeve 4 are square or rectangular tubes, with closed outer ends and open inner ends. The inner sleeve 4 is fitted onto the outer sleeve 3, and its cross-sectional dimensions are 3-5 mm smaller than those of the outer sleeve 3. Both the inner sleeve 4 and the outer sleeve 3 have multiple longitudinal elongated holes, through which bolts 7 are inserted. The inner sleeve 4 and the outer sleeve 3 are connected by bolts 7. The elongated holes and bolts 7 are used for fine-tuning and coarse-tuning of the overall length of the outer sleeve 3 and the inner sleeve 4 to meet the requirements of all underground stiffened steel columns 1 on site.

[0037] Y-shaped plates 5 are welded to the outer ends of the inner sleeve 4 and the outer sleeve 3 respectively. A rectangular first connecting plate 6 is welded to the open end of the Y-shaped plate 5. The dimensions of the first connecting plate 6 are 185×20×150mm. The first connecting plate 6 is parallel to the end face of the outer sleeve 3 or the inner sleeve 4. The first connecting plate 6 has mounting holes.

[0038] S3. Fabricate longitudinal support components

[0039] The longitudinal support assembly mainly consists of an outer sleeve 3, an inner sleeve 4, bolts 7, and a second connecting plate 8. The structure of the outer sleeve 3 and the inner sleeve 4 is the same as that of the transverse support assembly. The two ends of the outer sleeve 3 and the inner sleeve 4 are respectively welded with the second connecting plate 8. The second connecting plate 8 is perpendicular to the end face of the outer sleeve 3 or the inner sleeve 4, and the second connecting plate 8 has mounting holes.

[0040] S4. Installation of lateral and longitudinal support components

[0041] A transverse support assembly is placed between two transversely adjacent steel columns 1, and the two first connecting plates 6 of the transverse support assembly are respectively bolted to the ear plates 2 of the steel column 1. A longitudinal support assembly is placed between two longitudinally adjacent steel columns 1, and the two second connecting plates 8 of the longitudinal support assembly are respectively bolted to the ear plates 2 of the steel column 1. The column heads of the four steel columns 1 and the two types of steel column support components form a steel column upper support system.

[0042] S5. Use a total station to remeasure the coordinates of the fixed steel column 1. If the steel column 1 has a deviation that exceeds the design and specification requirements, it should be recalibrated. After calibration, weld and fix the nuts, washers and anchor bolts of the lower support. Then use a wrench to tighten and fix the bolts 7 of the upper support system of the steel column 1 to form an integrated support system.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A temporary support method for controlling the positioning of underground stiffened steel columns in a steel structure, comprising the following steps: S1. Two ear plates are symmetrically welded to the two sides of the steel column head; S2. Fabricate horizontal support components The lateral support assembly includes an outer sleeve, an inner sleeve, a Y-shaped plate, and a first connecting plate. The inner sleeve is fitted onto the outer sleeve and connected by bolts. The outer ends of the inner sleeve and the outer sleeve are respectively fixed to Y-shaped plates, and the open end of the Y-shaped plate is fixed to the first connecting plate. S3. Fabricate longitudinal support components The longitudinal support assembly includes an outer sleeve, an inner sleeve, and a second connecting plate, with the second connecting plate fixed to both ends of the outer sleeve and the inner sleeve respectively; S4. Installation of lateral and longitudinal support components The transverse support assembly is placed between two transversely adjacent steel columns, and the two first connecting plates of the transverse support assembly are respectively connected to the ear plates of the steel columns. The longitudinal support assembly is placed between two longitudinally adjacent steel columns, and the two second connecting plates of the longitudinal support assembly are respectively connected to the ear plates of the steel columns. S5. Use a total station to remeasure the coordinates of the fixed steel columns. If there are deviations that exceed the design and specification requirements, recalibrate the steel columns. After calibration, weld and fix the nuts, washers and anchor bolts of the lower support. Then use a wrench to tighten and fix the bolts of the upper support system of the steel column to form an integrated support system. The outer ends of the outer sleeve and the inner sleeve are closed; The outer sleeve and inner sleeve have longitudinal elongated holes in their bodies, and bolts are inserted into these elongated holes.

2. The temporary support method for controlling and positioning underground stiffened steel columns of steel structures according to claim 1, characterized in that: The first connecting plate of the lateral support assembly is parallel to the end face of the outer sleeve or inner sleeve.

3. The temporary support method for controlling and positioning underground stiffened steel columns of steel structures according to claim 1, characterized in that: The surface of the second connecting plate of the longitudinal support assembly is perpendicular to the end face of the outer sleeve or inner sleeve.

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