Container terminal rear monomer steel structure and installation method thereof

Abstract

The application discloses a kind of container wharf rear single steel structure, comprising: pre-embedded base, top is provided with receiving groove;Column includes column body and column connecting assembly, column connecting assembly includes: strut, its bottom is equipped with multiple rolling balls;Multiple main hinge seats, vertically telescopic column is hinged, vertically telescopic column upper end is fixed on column universal seat, column universal seat is fixed on column body, vertically telescopic column is set on first spring;Branch hinge seat is hinged transversely telescopic column, and transversely telescopic column is set on second spring;Roof and multiple cross beams.The single steel structure has the beneficial effects of adapting to large wind, heavy rain and earthquake deviation range requirement and ensuring stability requirement.Provide a kind of installation method of single steel structure, comprising: install column connecting assembly to column body, then install to pre-embedded base;Install adjacent column body;Install cross beam to adjacent column, form frame;Install roof to column.The installation method is high in safety, and installation efficiency is also high.

Description

Technical Field

[0001] This invention relates to the field of container terminal construction technology. More specifically, this invention relates to a single steel structure at the rear of a container terminal and its installation method. Background Technology

[0002] Seaport trade is based on container terminals. To ensure the smooth and orderly operation of container terminals, it is necessary to construct individual steel structures behind the terminals. These structures mainly include communication towers, steel roof structures for maintenance workshops, generator sheds, and oil pump sheds. The construction of these individual steel structures typically involves the installation of steel roof trusses, roof panels, paint repair, and defect handling. The main load-bearing system of the individual steel structure is the roof truss, which mainly consists of steel columns, main beams, vertical supports, and secondary beams. The installation of the roof truss involves the main beams, vertical supports, secondary beams, and horizontal supports between the columns being installed sequentially. After adjacent columns are installed, the main beams are connected promptly to form a stable frame. The installation of components between columns follows the order of main beams first, then secondary beams, and lower layers first, then upper layers. Given the unique geographical location of seaports, these individual steel structures are primarily affected by extreme weather events such as strong winds, heavy rains, and torrential downpours, as well as tsunamis and undersea earthquakes. Therefore, the wind and earthquake resistance of these individual steel structures is particularly important.

[0003] To improve the seismic resistance of steel structures, a three-dimensional seismic-resistant steel structure factory building (application number 2021113159660) employs a seismic isolation mechanism (connecting base plate, rubber isolation pads, and connecting top plate from bottom to top, with four damping springs around the rubber isolation pads) between the embedded foundation and the bottom frame. Buffer blocks are placed between adjacent isolation mechanisms, and a buffer mechanism (connected to the bottom frame by multiple buffer springs) is installed between the buffer blocks and the bottom frame. While this structure provides some seismic resistance, its simple springs and rubber pads are insufficient for both amplitude and rigidity requirements in single steel structures located in harbor areas. Therefore, a roof truss design suitable for single steel structures in harbor areas is needed. Summary of the Invention

[0004] One object of the present invention is to solve at least the above-mentioned problems and to provide at least the advantages that will be described later.

[0005] To achieve these objectives and other advantages according to the present invention, a single-unit steel structure for the rear of a container terminal is provided, comprising:

[0006] Multiple pre-embedded bases are pre-embedded in a designated area, and the top of each pre-embedded base is provided with an arc-shaped receiving groove.

[0007] Multiple columns, each column including a column body and a column connecting assembly disposed at the bottom of the column body, the column connecting assembly including:

[0008] A support column is provided at the bottom of the column body. Multiple rolling balls are movably positioned at the bottom of the support column. The bottom surfaces of the multiple rolling balls form an arc shape that matches the receiving groove. The rolling balls abut against the receiving groove.

[0009] Multiple main hinge seats are provided on the pre-embedded base. A vertical telescopic column is hinged to the main hinge seat. The upper end of the vertical telescopic column is fixed to a column universal seat. The column universal seat is fixed to the bottom of the column body. A first spring is sleeved on the vertical telescopic column.

[0010] Multiple pairs of hinged supports are provided, each pair of hinged supports is respectively provided on the side wall of the support column and on one of the vertical telescopic columns, and a horizontal telescopic column is hinged to each pair of hinged supports, and a second spring is sleeved on the horizontal telescopic column.

[0011] Multiple crossbeams are provided between two adjacent column bodies;

[0012] The roof is provided on the columns.

[0013] Preferably, the roof includes a plurality of main roof ridges and a ridge connecting assembly disposed at the bottom of the main roof ridges, the ridge connecting assembly comprising:

[0014] An arc-shaped rail is installed at the bottom of the main horizontal ridge of the roof. A pair of pulleys are provided on the arc-shaped rail. A ridge hinge seat is provided on the pulleys. A ridge telescopic column is hinged to the ridge hinge seat. A third spring is sleeved on the ridge telescopic column.

[0015] A top cover is provided on the top of the column body. A pair of ridge universal seats are provided on the top cover, and the pair of ridge universal seats are respectively fixed to the lower ends of a pair of ridge telescopic columns.

[0016] Preferably, multiple vertical telescopic columns on the same column connection assembly form a frustum shape that is smaller at the top and larger at the bottom.

[0017] Preferably, the bottom of the support column is provided with a plurality of spherical receiving grooves, the inner wall of the receiving grooves is covered with a wear-resistant layer, and the rolling ball is limited to moving within the receiving grooves.

[0018] Preferably, the vertical telescopic column includes a sleeve, a rod slidably fitted axially within the sleeve, a pair of lugs disposed at the lower end of the sleeve and the upper end of the rod, a convex plate fixedly fitted on the outer wall of the sleeve, and a convex ring movably fitted on the outer wall of the rod, wherein the two ends of the first spring are respectively fixed to the convex plate and the convex ring, and the pair of lugs are respectively connected to the main hinge seat and the column universal seat.

[0019] Preferably, a pair of ridge telescopic columns form a trapezoidal shape that is larger at the top and smaller at the bottom.

[0020] Preferably, the roof cover includes a cylindrical tube and a horizontal plate disposed inside the cylindrical tube, wherein the horizontal plate is disposed at the top of the column body, the lower end of the cylindrical tube is sleeved on the outside of the column body, and the upper end of the cylindrical tube has a gap with the main ridge of the roof.

[0021] A method for installing a single steel structure at the rear of a container terminal is provided, including the following steps:

[0022] S1. Install the column connection assembly onto the column body, then hoist the column to the pre-embedded base, and connect and fix the main hinge seat to the pre-embedded base;

[0023] S2. Fix and install the adjacent column bodies according to the method in step S1;

[0024] S3. Install the crossbeams onto the adjacent columns that have already been installed to form a frame;

[0025] S4. Complete the installation of all columns and beams of the single steel structure according to the methods of steps S2 to S3;

[0026] S5. Install the roof onto the columns.

[0027] Preferably, step S5 includes:

[0028] S5.1 Pre-install the ridge connection assembly on the main horizontal ridge of the roof;

[0029] S5.2 Hoist the main ridge of the roof to the top of the corresponding column, and install and fix the ridge universal seat inside the roof cover.

[0030] The present invention has at least the following beneficial effects:

[0031] First, when the rolling ball rolls, it can induce two types of motion: one is that the rolling ball rotates while the support column and the column it supports remain stationary; the other is that the rolling ball rolls, simultaneously moving the support column and the column it supports. Because the rolling path of the ball is arc-shaped, the support column and the column it drives also move along an arc-shaped path. Regardless of which type of motion is induced, it can effectively absorb displacement caused by wind, rain, and earthquake forces, thereby improving wind, rain, and earthquake resistance.

[0032] Secondly, when affected by external forces such as wind, rain, or earthquakes, the column will be restricted by forces in multiple directions as it deviates from its original initial position (the vertical telescopic column is in a partially retracted state and the first spring is in a compressed state). Moreover, the restriction of these forces is not rigid, but can adapt to the direction of the column's deviation, thereby reducing the generation of rigid stress, adapting to displacements with high deviation amplitudes, and ensuring the stability of the overall structure.

[0033] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0034] Figure 1 This is a side view of the single steel structure according to one of the technical solutions of the present invention;

[0035] Figure 2 A detailed view of the column according to one of the technical solutions of the present invention;

[0036] Figure 3 This is a detailed view of the spine connection assembly according to one of the technical solutions of the present invention;

[0037] Figure 4 This is a detailed view of the vertical telescopic column according to one of the technical solutions of the present invention. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0039] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified. In the description of this invention, the orientation or positional relationship indicated by the terms is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. It does 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, and therefore should not be construed as a limitation of this invention.

[0040] like Figures 1-4As shown in the accompanying drawings of this invention, the reference numerals are interpreted as follows: Embedded base 100, receiving groove 11, column 200, column body 21, column connecting assembly 22, support column 221, rolling ball 222, main hinge seat 223, vertical telescopic column 224, column universal seat 225, first spring 226; support hinge seat 227, horizontal telescopic column 228, second spring 229, crossbeam 300, roof 400, main roof ridge 41, ridge connecting assembly 42, arc-shaped rail 421, pulley 422, ridge hinge seat 423, ridge telescopic column 424, third spring 425, top plate cover 426, ridge universal seat 427, sleeve 201, sleeve rod 202, lug 203, convex plate 204, convex ring 205, cylindrical tube 401, horizontal plate 402.

[0041] This invention provides a single steel structure at the rear of a container terminal, comprising:

[0042] Multiple embedded bases 100 are pre-embedded in a designated area. Each embedded base 100 has an arc-shaped receiving groove 11 on its top. Typically, the single steel structure behind a container terminal is rectangular. The embedded bases 100 are pre-embedded and fixed at intervals along the four sides of the length, with one base at each of the four corners. The distance between adjacent embedded bases 100 is set according to actual needs, for example, 5 to 10 meters. The chord length of the receiving groove 11 is set to approximately 2 / 3 of the cross-sectional length of the column 200, and the height is set to 1 / 6 to 1 / 3 of the cross-sectional length of the column 200. The embedded bases 100 are typically connected to the columns 200 using pre-embedded tie bolts.

[0043] Multiple columns 200, each column 200 including a column body 21 and a column connecting assembly 22 disposed at the bottom of the column body 21, the column connecting assembly 22 including:

[0044] A support column 221 is disposed at the bottom of the column body 21. Multiple rolling balls 222 are movably positioned at the bottom of the support column 221. The bottom surfaces of the rolling balls 222 form an arc shape adapted to the receiving groove 11, and the rolling balls 222 abut against the receiving groove 11. The rolling balls 222 cannot detach from the bottom of the support column 221, but can roll within a certain range at the bottom of the support column 221. When the rolling balls 222 roll, two types of motion can occur: one is that the rolling balls 222 rotate, while the support column 221 and the column body 21 supported by the support column 221 remain stationary; the other is that the rolling balls 222 roll, simultaneously driving the support column 221 and the column body 21 supported by the support column 221 to move. Since the rolling path of the rolling balls 222 is arc-shaped, the support column 221 and the column body 21 driven by them also move along the arc shape. Regardless of the type of movement, it can effectively absorb displacement caused by wind, rain, and earthquake forces, thereby improving its resistance to wind, rain, and earthquakes. Specifically, the bottom of the support column 221 has multiple spherical receiving grooves, and the inner wall of the receiving grooves is covered with a wear-resistant layer. The rolling ball 222 is confined to the receiving groove. Thus, the rolling ball 222 can roll within the range defined by the receiving groove without completely detaching from it.

[0045] Multiple main hinge seats 223 are mounted on the pre-embedded base 100. Vertical telescopic columns 224 are hinged to each main hinge seat 223. The upper end of each vertical telescopic column 224 is fixed to a column universal joint 225, which is fixed to the bottom of the column body 21. A first spring 226 is fitted onto each vertical telescopic column 224. The main hinge seats 223 are typically pre-fixed to a connecting steel plate, which is then connected and fixed to the pre-embedded base 100, usually using bolts and nuts. When affected by external forces such as wind, rain, or earthquakes, the column 200 deviates from its initial position (the vertical telescopic column 224 is partially retracted, and the first spring 226 is compressed). During this process, it is constrained by forces in multiple directions. This constraint is not rigid but adaptable to the deviation of the column 200, thereby reducing rigid stress, accommodating displacements with large deviations, and ensuring the stability of the overall structure.

[0046] Specifically, the vertical telescopic column 224 includes a sleeve 201, a rod 202 slidably fitted within the sleeve 201 along the axial direction, a pair of lugs 203 disposed at the lower end of the sleeve 201 and the upper end of the rod 202, a protruding plate 204 fixedly fitted on the outer wall of the sleeve 201, and a protruding ring 205 movably fitted on the outer wall of the rod 202. The lugs 203 have circular holes. The first spring 226 is fixed at both ends to the protruding plate 204 and the protruding ring 205, respectively. The pair of lugs 203 are respectively connected to the main hinge seat 223 and the column universal seat. The column body 21 is evenly supported by multiple vertical telescopic columns 224.

[0047] Specifically, the multiple vertical telescopic columns 224 on the same column connecting assembly 22 form a frustum shape, smaller at the top and larger at the bottom. This improves the stability of the column 200. Multiple pairs of hinged supports 227 are provided, each pair being respectively installed on the side wall of the support column 221 and one of the vertical telescopic columns 224. Each pair of hinged supports 227 is hinged to a horizontal telescopic column 228, which is fitted with a second spring 229 to enhance resistance to lateral wind force, rain force, and displacement caused by earthquakes. Specifically, the structure of the horizontal telescopic column 228 is the same as that of the vertical telescopic column 224, and will not be described again here.

[0048] Multiple crossbeams 300 are provided between two adjacent column bodies 21. The crossbeams 300 are not modified and are fixed to the column body 21 using the existing common method of fixing crossbeams 300, namely, by using steel plates, bolts and nuts.

[0049] The roof 400 is mounted on the column 200.

[0050] In the above technical solution, when the three-dimensional structure is subjected to lateral external force, the column 200 deviates from its original position. The bottom of the support column 221 is arc-shaped. Therefore, during the deviation process, the support column 221 can separate a component force towards the center due to its own gravity, thereby improving stability. After the deviation, the vertical telescopic column 224 and the horizontal telescopic column 228 on the up-force side are both elongated, thus exerting a tensile force on the column 200. The vertical telescopic column 224 and the horizontal telescopic column 228 on the back-force side are both compressed, thus exerting a thrust on the column 200. Both of these forces work together to stabilize the column 200. At the same time, the combined force of the receiving groove 11, the first spring 226 and the second spring 229 of the vertical telescopic column 224 and the horizontal telescopic column 228 can adapt to a larger deviation position, that is, to a larger earthquake amplitude, significantly improving the wind, rain and earthquake resistance of the column 200.

[0051] Furthermore, the roof 400 includes a plurality of main roof ridges 41 and a ridge connecting assembly 42 disposed at the bottom of the main roof ridges 41, the ridge connecting assembly 42 including:

[0052] An arc-shaped rail 421 is installed at the bottom of the main horizontal ridge 41 of the roof. A pair of pulleys 422 are provided on the arc-shaped rail 421. A ridge hinge seat 423 is provided on the pulleys 422. A ridge telescopic column 424 is hinged to the ridge hinge seat 423. A third spring 425 is sleeved on the ridge telescopic column 424. When the pulleys 422 slide along the arc-shaped rail 421, they drive the upper end of the ridge telescopic column 424 to move along the arc-shaped rail 421. Since the lower end of the ridge telescopic column 424 is fixed, the ridge telescopic column 424 can be extended and shortened. The extension and shortening distances do not change linearly with the magnitude of the force, but are limited by the elastic force of the third spring 425 and the ratio of the major and minor axes of the arc-shaped rail 421. When the roof 400 is affected by wind, rain, or earthquakes, it is adjusted by the ridge expansion joints 424, the third spring 425, the curved rail 421, the ridge hinge seat 423, and the ridge universal seat 427. When external forces act laterally on the roof 400, the above-mentioned components are tightened and deviated from displacement on the windward side, while the leeward side conforms to stabilize the roof 400, thus significantly improving the roof 400's wind, rain, and earthquake resistance and stability. Specifically, a pair of ridge expansion joints 424 form a trapezoidal shape that is larger at the top and smaller at the bottom, which further improves the stability of the roof 400. The structure of the ridge expansion joints 424 is the same as that of the vertical expansion joints 224, and will not be described again here. Specifically, the curved rail 421 can be first fixed to a steel connecting plate, and then the steel connecting plate is fixed to the main horizontal ridge 41 of the roof with bolts and nuts. The other ridges of the roof 400 are all connected and fixed to the main horizontal ridges using steel connecting plates, bolts, and nuts, and then the roof panels can be laid. When other vertical supports are provided between two adjacent columns 200, the top of the vertical support is connected to the lower side of the crossbeam 300 through the ridge connection component 42 to adapt to stress changes caused by positional displacement due to strong winds, heavy rains or earthquakes, and to improve the stability between the vertical support and the crossbeam 300.

[0053] A roof cover 426 is disposed on the top of the column body 21. The roof cover 426 has a pair of ridge universal joints 427, which are respectively fixed to the lower ends of a pair of ridge telescopic columns 424. Specifically, the roof cover 426 includes a cylindrical tube 401 and a horizontal plate 402 disposed within the cylindrical tube 401. The horizontal plate 402 is disposed on the top of the column body 21, and the lower end of the cylindrical tube 401 is fitted onto the outside of the column body 21. The upper end of the cylindrical tube 401 has a gap with the main roof ridge 41. The cylindrical tube 401 surrounds the ridge telescopic columns 424, reducing wind volume and providing wind protection. The structural form of the roof cover 426 can improve the stability of the fixation between the roof 400 and the column 200.

[0054] In the above technical solution, when the roof 400 is subjected to lateral external forces, the ridge telescopic column 424, the third spring 425, the arc-shaped rail 421, the ridge hinge seat 423, and the ridge universal seat 427 on the windward side move relatively away from the center of the arc-shaped rail 421 until the ridge telescopic column is stretched to its limit, forming a tensile force. Meanwhile, the ridge telescopic column 424, the third spring 425, the arc-shaped rail 421, the ridge hinge seat 423, and the ridge universal seat 427 on the leeward side move relatively towards the center of the arc-shaped rail 421, and the ridge telescopic column 424 shortens, compressing the third spring 425 and forming a resistance force. The combination of these two forces can accommodate a large deviation displacement of the roof 400 while ensuring the stability of the roof 400, thereby significantly improving the wind, rain, and earthquake resistance performance of the roof 400.

[0055] A method for installing a single steel structure at the rear of a container terminal is provided, including the following steps:

[0056] S1. Install the column connection assembly 22 onto the column body 21, then hoist the column 200 to the pre-embedded base 100, and connect and fix the main hinge seat 223 to the pre-embedded base 100; Note that the left and right rotation angles of the crane boom should not exceed 45°, the boom elevation angle during operation should not be less than 30°, and the load of each crane should not exceed 80% of the rated load.

[0057] S2. Install the adjacent column body 21 in a fixed manner according to the method in step S1;

[0058] S3. Install the crossbeam 300 onto the adjacent upright 200 that has already been installed to form a frame;

[0059] When the span is large, vertical supports, spur beams, and horizontal supports are also installed under the crossbeam 300. These components must be installed in the same sequence as the column body 21. Each day, the installed columns 200 must be connected to the crossbeam 300. If immediate connection is not possible, guy ropes should be used for temporary stabilization. The components between the columns 200 should be installed in the following order: main beams first, then secondary beams; lower layers first, then upper layers.

[0060] S4. Complete the installation of all columns 200 and beams 300 of the single steel structure according to the methods of steps S2 to S3;

[0061] S5. Install the roof 400 onto the column 200, specifically including the following steps:

[0062] S5.1 The ridge connection component 42 is pre-installed on the main horizontal ridge of the roof 41; the number of ridge connection components 42 is determined according to actual needs.

[0063] S5.2 Hoist the main roof ridge 41 above the corresponding column 200, and install and fix the ridge universal joint 427 inside the roof cover 426. Note that the installation sequence of the main roof ridge 41 is as follows: first install the adjacent and opposite main roof ridges 41, and then install other ridges onto the newly installed main roof ridges 41 to form a frame and enhance stability. Repeat the cycle until all the main roof ridges 41 and ridges are installed, and then fix the roof panels to the main roof ridges 41 and ridges.

[0064] Specifically, an installation method is provided: the roof panels are assembled using corrugated boards. The first row of roof tiles should be laid out along the 400° slope of the roof, with the eaves extending 120mm into the gutter. A baseline is used for the roof panel eaves during construction, and waterproof self-tapping screws are used as specified. The next row of roof panels is then fastened onto the crest of the previous row and secured with self-tapping screws. The misalignment of the metal panel ends is controlled within specifications, and then the panels are installed sequentially. For the ridge cap installation, the straightness of the ridge must be ensured, and waterproof sealing strips are used on both sides, riveted with waterproof rivets. The eaves edging panels should also ensure straightness and parallelism with the ridge, and be riveted with waterproof rivets. All self-tapping screws must be horizontally and vertically aligned, and any metal shavings on the 400° slope of the roof surface must be promptly cleaned.

[0065] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A single steel structure at the rear of a container terminal, characterized in that, include: Multiple pre-embedded bases are pre-embedded in a designated area, and the top of each pre-embedded base is provided with an arc-shaped receiving groove. Multiple columns, each column including a column body and a column connecting assembly disposed at the bottom of the column body, the column connecting assembly including: A support column is provided at the bottom of the column body. Multiple rolling balls are movably positioned at the bottom of the support column. The bottom surfaces of the multiple rolling balls form an arc shape that matches the receiving groove. The rolling balls abut against the receiving groove. Multiple main hinge seats are provided on the pre-embedded base. A vertical telescopic column is hinged to the main hinge seat. The upper end of the vertical telescopic column is fixed to a column universal seat. The column universal seat is fixed to the bottom of the column body. A first spring is sleeved on the vertical telescopic column. Multiple pairs of hinged supports are provided, each pair of hinged supports is respectively provided on the side wall of the support column and on one of the vertical telescopic columns, and a horizontal telescopic column is hinged to each pair of hinged supports, and a second spring is sleeved on the horizontal telescopic column. Multiple crossbeams are provided between two adjacent column bodies; The roof, which covers the columns; The roof includes multiple main roof ridges and ridge connecting assemblies disposed at the bottom of the main roof ridges, wherein the ridge connecting assemblies include: An arc-shaped rail is installed at the bottom of the main horizontal ridge of the roof. A pair of pulleys are provided on the arc-shaped rail. A ridge hinge seat is provided on the pulleys. A ridge telescopic column is hinged to the ridge hinge seat. A third spring is sleeved on the ridge telescopic column. A top cover is provided on the top of the column body. A pair of ridge universal seats are provided on the top cover, and the pair of ridge universal seats are respectively fixed to the lower ends of a pair of ridge telescopic columns.

2. The single steel structure behind the container terminal as described in claim 1, characterized in that, Multiple vertical telescopic columns on the same column connection assembly form a frustum shape that is smaller at the top and larger at the bottom.

3. The single steel structure behind the container terminal as described in claim 1, characterized in that, The bottom of the support column is provided with multiple spherical receiving grooves, and the inner wall of the receiving grooves is covered with a wear-resistant layer. The rolling ball is limited to moving within the receiving grooves.

4. The single steel structure behind the container terminal as described in claim 1, characterized in that, The vertical telescopic column includes a sleeve, a rod that is slidably fitted inside the sleeve along the axial direction, a pair of lugs disposed at the lower end of the sleeve and the upper end of the rod, a convex plate fixedly fitted on the outer wall of the sleeve, and a convex ring movably fitted on the outer wall of the rod. The first spring is fixed at both ends to the convex plate and the convex ring, respectively, and the pair of lugs are respectively connected to the main hinge seat and the column universal seat.

5. The single steel structure behind the container terminal as described in claim 1, characterized in that, A pair of ridge-stretching columns form a trapezoidal shape that is larger at the top and smaller at the bottom.

6. The single steel structure behind the container terminal as described in claim 1, characterized in that, The roof cover includes a cylindrical tube and a horizontal plate disposed inside the cylindrical tube. The horizontal plate is disposed at the top of the column body, the lower end of the cylindrical tube is sleeved on the outside of the column body, and the upper end of the cylindrical tube has a gap with the main horizontal ridge of the roof.

7. The installation method of the single steel structure behind the container terminal as described in any one of claims 1 to 6, characterized in that, Includes the following steps: S1. Install the column connection assembly onto the column body, then hoist the column to the pre-embedded base, and connect and fix the main hinge seat to the pre-embedded base; S2. Fix and install the adjacent column bodies according to the method in step S1; S3. Install the crossbeams onto the adjacent columns that have already been installed to form a frame; S4. Complete the installation of all columns and beams of the single steel structure according to the methods of steps S2 to S3; S5. Install the roof onto the columns.

8. The installation method of the single steel structure behind the container terminal as described in claim 7, characterized in that, Step S5 includes: S5.1 Pre-install the ridge connection assembly on the main horizontal ridge of the roof; S5.2 Hoist the main ridge of the roof to the top of the corresponding column, and install and fix the ridge universal seat inside the roof cover.

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