Steel structure roof sliding X-shaped jig and jacking method thereof

Abstract

The application discloses a steel structure roof sliding X-shaped jig frame and a jacking method thereof, which is in a whole butterfly shape, comprises two triangular sections arranged symmetrically and connected with each other, the structure shapes of the two triangular sections are completely same, and the two triangular sections are fixedly connected through connecting fixed points; and the jig frame is spliced by frame-shaped unit frames. The steel structure roof sliding X-shaped jig frame has a reasonable overall structure design, compared with a traditional flat plate structure, a notch is formed on the two sides of the moving direction, the hoisting of roof truss members on the jig frame can be greatly facilitated, and a clamping rod is avoided, which is a general type design and can adapt to the needs of different sliding directions, reduces the requirement for hoisting equipment under the prior art condition, reduces the cost, improves the work efficiency, meanwhile, the stability of the overall structure is good, the load bearing requirement for heavy roof trusses can be met, the contour is spliced by straight lines, the requirement for the splicing process is low, and the steel structure roof sliding X-shaped jig frame has a very good application prospect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel structure construction, and relates to a steel structure roof sliding X-shaped jig frame and a jacking method thereof. BACKGROUND

[0002] Steel structure is a structure composed of steel materials, and is one of main building structure types. The structure is mainly composed of members such as steel beams, steel columns and steel trusses made of profiled steel and steel plates, and adopts rust removal and rust prevention processes such as silicification, pure manganese phosphating, water washing and drying, and galvanizing. Welding, bolts or rivets are usually used to connect between various members or parts. Because the self weight is relatively light, and the construction is simple, the steel structure is widely used in fields such as large workshops, venues and super high-rise buildings. In order to meet the requirements of building design, a large number of steel structure members are used, and higher requirements are put forward for steel structure installation. Due to the limitation of steel structure installation height, the limitation of narrow construction site, and the limitation of hoisting weight of the crane, other construction schemes such as sliding or lifting can be considered at this time. For example, the span of the steel structure workshop of the Baosteel non-oriented silicon steel product structure optimization project 4 area reaches 42 meters, and the length reaches 435 meters. The equipment foundation in the workshop cannot be installed in the cross-section of the workshop by using the crane, and the electrical room and auxiliary room are designed outside the workshop. If the crane is used for cross-section installation, the hoisting tonnage requirement of the crane is high, the construction cost is high, and the large crane arranged outside the workshop will block the temporary construction passage. Moreover, the safety hidden danger of vertical cross operation between the civil engineering and the steel structure is great, and the construction progress of the roof steel structure and the civil engineering needs to be reasonably coordinated because the civil engineering work cannot use the tower crane after the roof steel structure construction is completed.

[0003] In order to improve the installation progress of the steel structure roof system, the steel structure roof sliding technology is developed by the person skilled in the art. The current steel structure roof sliding jig frame is generally a square planar structure. Although the square planar structure can provide sufficient support for the steel structure roof truss, the jig frame is arranged below the steel structure roof truss, can provide safety protection for construction when the roof truss is assembled, and can avoid falling of parts or personnel. However, when the roof truss is assembled, the crane needs to be used for hoisting the roof truss structural member. The number of tower cranes in the site is limited, and the tower crane needs to be used for hoisting the overweight workpiece. The use of the truck crane for hoisting the roof truss structural member can greatly improve the overall construction efficiency. However, the square planar jig frame will greatly affect the hoisting of the roof truss structural member (the clamp rod) by the truck crane, especially the large-size jig frame needs a larger truck crane, which will greatly increase the operation cost. At present, the installation of the sliding jig frame is generally completed by using the hoisting + high-altitude assembly method. However, this method not only has great safety hidden danger, but also depends on large hoisting equipment, has high cost, is inconvenient for high-altitude operation construction, and has low assembly efficiency.

[0004] Therefore, it is of great practical significance to develop a steel structure roof sliding jig frame which has reasonable structure design and can facilitate the roof truss assembly work. SUMMARY

[0005] In view of the defects in the prior art, the steel structure roof sliding cradle provided by the present application has a reasonable structure design and can facilitate the assembly of the roof truss, so as to solve the problem of unreasonable design of the existing steel structure roof sliding cradle, which affects the hoisting of the roof truss structural member.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] The steel structure roof sliding X-shaped cradle has a whole butterfly shape, which comprises two triangular parts arranged symmetrically and connected to each other.

[0008] The two triangular parts have the same structure shape and are fixedly connected through the connecting fixed points.

[0009] The cradle is spliced by frame-shaped unit cradles, i.e., the two triangular parts are spliced by frame-shaped unit cradles, which is a steady-state structure.

[0010] The steel structure roof sliding X-shaped cradle of the present application has a reasonable overall structure design. Compared with the traditional flat plate structure, the two sides of the moving direction are provided with notches, which can greatly facilitate the hoisting of the roof truss member on the cradle and avoid the clamping rod. This is a general design that can adapt to the needs of different sliding directions, reduce the requirements for hoisting equipment under the existing technical conditions, reduce costs, improve work efficiency, and at the same time, the overall structure has good stability and can meet the bearing requirements of heavy roof trusses. The contour is spliced by straight lines, which has low requirements for splicing technology and has great application prospects.

[0011] As a preferred technical solution:

[0012] The steel structure roof sliding X-shaped cradle as described above, wherein the triangular part is an isosceles right triangle.

[0013] The steel structure roof sliding X-shaped cradle as described above, wherein the vertices of the two triangular parts are connected to each other.

[0014] The steel structure roof sliding X-shaped cradle as described above, wherein the oblique sides of the two triangular parts are parallel to each other.

[0015] The steel structure roof sliding X-shaped cradle as described above, wherein the walking direction of the cradle is parallel to the oblique sides of the triangular parts.

[0016] The steel structure roof sliding X-shaped cradle as described above, wherein the walking direction of the cradle is the head-tail direction, a plurality of walking devices are installed on the two sides of the cradle, and the walking devices on the two sides correspond one-to-one, which can ensure sufficient support of the cradle. The walking devices are fixedly connected to the cradle through the widened frames and are arranged below the widened frames.

[0017] A steel structure roof sliding X-shaped jig frame, the upper side of the jig frame is covered with a platform plate to facilitate personnel walking and material stacking, and foreign matter or personnel falling can be avoided.

[0018] A steel structure roof sliding X-shaped jig frame, the connecting fixed point is provided with a structure reinforcing device.

[0019] The jig frame is provided with a structure reinforcing rod connected with the connecting fixed point and fixedly connected with two oblique sides of the triangular part.

[0020] The application also provides a method for jacking up a steel structure roof sliding X-shaped jig frame, which comprises the following steps:

[0021] (1) laying a jig frame temporary support on the ground, the jig frame temporary support is provided with a jig frame jacking device, the jig frame jacking device is telescopic along the vertical direction and the movable end thereof is located at the upper end;

[0022] (2) assembling the steel structure roof sliding X-shaped jig frame on the ground and arranging the steel structure roof sliding X-shaped jig frame on the jig frame temporary support;

[0023] (3) fixedly connecting the movable end of the jig frame jacking device with the steel structure roof sliding X-shaped jig frame, fixing the lower end of the jig frame jacking device on the jig frame temporary support through a limiting device, and driving all jig frame jacking devices under the jig frame to synchronously jack up the steel structure roof sliding jig frame to a certain height, at this time, the stroke of the jig frame jacking device is elongated;

[0024] (4) fixedly installing a jig frame jacking frame standard section between the temporary support and the steel structure roof sliding X-shaped jig frame, the jig frame temporary support comprises at least one jig frame jacking frame standard section, the height of one jig frame jacking frame standard section is equal to the certain height, at this time, the upper bracket of the jig frame jacking device is clamped above the jig frame jacking frame standard section, i.e., the jig frame jacking device is fixed by the jig frame jacking frame standard section installed;

[0025] (5) removing the limiting device at the lower end of the jig frame jacking device, and driving all jig frame jacking devices to shorten the stroke and return to the initial state of step (3);

[0026] (6) fixing the jig frame jacking device with the jig frame jacking frame standard section by installing the limiting device at the lower end of the jig frame jacking device, and repeating steps (3)-(5) until the steel structure roof sliding X-shaped jig frame is jacked up to the target height.

[0027] The jacking up method has good applicability and is relatively simple to operate, the jig frame can be quickly jacked up to the target height by using the jig frame jacking device, and the overall stability and safety are good compared with assembling the jig frame in the air or hoisting the jig frame.

[0028] As a preferred technical solution:

[0029] The method as described above, the jig jacking device is a hydraulic jack;

[0030] A plurality of temporary supports for the jig are evenly arranged under the sliding X-shaped jig of the steel structure roof;

[0031] The temporary support for the jig is at least one standard section of the jig jacking frame, and if it is a plurality of standard sections of the jig jacking frame, it is a plurality of standard sections of the jig jacking frame stacked along the vertical direction;

[0032] The standard section of the jig jacking frame is in the form of a square tube, which comprises two side plates and a fixing rod for connecting the two side plates;

[0033] The side plate is in the form of a plane, comprising two vertical rods and two horizontal rods connecting the two vertical rods, the vertical rods and the horizontal rods form a square structure, and a W-shaped reinforcing rib for strengthening the structure is arranged in the square structure, the upper and lower ends of the vertical rods are radially outwardly extended with a connecting fixing plate, and a hole is formed in the connecting fixing plate, and the adjacent jacking frame standard sections are fixedly connected through bolts;

[0034] The two side plates are fixedly connected through a plurality of fixing rods arranged therebetween, the fixing rod is a channel steel, and the fixing rod and the side plate are fixedly connected through bolts.

[0035] The design of the above-mentioned standard section of the jig jacking frame is reasonable, the standard section of the jig jacking frame is divided into a plurality of parts, the overall weight of the side plate is not large, the installation can be completed by the manpower of the construction personnel, the site requirement is small without the need of equipment, the side plate can be fixedly connected with the lower standard section of the jig jacking frame through bolts, the two side plates of the same standard section of the jig jacking frame are connected into a cylindrical structure through the fixing rod, and the stability of the overall structure is improved. Of course, the standard section of the jig jacking frame can also be a cuboid structure, and the standard section of the jig jacking frame is placed and fixed through bolts, but the overall weight of this structure is large, and hoisting equipment is needed, that is, the site has certain requirements.

[0036] The above technical solution is only one possible technical solution of the present application, and the protection scope of the present application is not limited to this, and those skilled in the art can reasonably adjust the specific design according to the actual needs.

[0037] The above-mentioned application has the following advantages or beneficial effects:

[0038] The whole structure of the steel structure roof sliding X-shaped jig of the application is reasonably designed, compared with the traditional flat structure, the two sides of the moving direction are provided with notches, which can greatly facilitate the hoisting of the roof truss components on the jig, avoid the clamping rod, this is a general design, which can adapt to the needs of different sliding directions, reduce the requirements for hoisting equipment under the existing technical conditions, reduce the cost, improve the work efficiency, at the same time, the stability of the whole structure is good, which can meet the bearing requirements of heavy roof truss, the contour is spliced by straight lines, the splicing process requirement is low; the jacking method is good in applicability and simple in operation, the jig can be quickly jacked to the target height by using the jig jacking device, compared with the high-altitude assembly jig or the hoisting jig, the whole stability is good, the safety is good, and it has great application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0039] The present application and its features, shapes and advantages will become more apparent from the following detailed description of non-limiting embodiments, made with reference to the accompanying drawings. The same reference numbers in all the drawings indicate the same parts. The drawings are not necessarily drawn to scale, the emphasis being on illustrating the principles of the application.

[0040] Figure 1 is a top view of the steel structure roof sliding X-shaped jig of the application;

[0041] Figures 2-4 are respectively front view, left view and top view of the jig jacking frame standard section;

[0042] Figures 5-7 are respectively front view, left view and top view of the upper support bracket;

[0043] Figures 8-10 are respectively front view, left view and top view of the lower support bracket;

[0044] Figures 11-16 is a schematic view of the jacking process;

[0045] Wherein, 1-first triangular part, 2-second triangular part, 3-structural reinforcing rod, 4-widening frame, 5-jig jacking device, 6-jig jacking frame standard section, 7-limiting device, 8-side plate, 81-vertical rod, 82-horizontal rod, 83-reinforcing rib, 9-fixing rod, 10-connecting fixed plate, 11-upper support bracket, 12-lower support bracket. DETAILED DESCRIPTION

[0046] The structure of the application will be further described below in combination with the drawings and specific embodiments, but not as a limitation of the application.

[0047] Example 1

[0048] A steel structure roof sliding X-shaped jig, such as Figure 1As shown, the whole is butterfly-shaped, which includes two symmetrically arranged and interconnected triangular parts (first triangular part 1 and second triangular part 2);

[0049] The two triangular parts have the same structural shape (both are isosceles right triangles). The vertices of the two triangular parts are connected to each other and the two triangular parts are fixedly connected by a connecting fixing point. The connecting fixing point is equipped with a structural reinforcement device. The frame is equipped with a structural reinforcement rod 3 that is connected to the connecting fixing point and fixedly connected to the two hypotenuses of the triangular parts respectively. The hypotenuses of the two triangular parts are parallel to each other. The traveling direction of the frame is parallel to the hypotenuses of the triangular parts. The traveling direction of the frame is the head and tail direction. Multiple traveling devices are installed on both sides of the frame and the traveling devices on both sides correspond one to one. The traveling devices are fixedly connected to the frame through a widening frame 4 and the traveling devices are arranged below the widening frame 4.

[0050] The tire frame is assembled from frame-shaped unit frames, and the upper side of the tire frame is covered with a platform plate.

[0051] The method for lifting the aforementioned steel structure roof sliding X-shaped support frame includes the following steps:

[0052] (1) Lay a temporary support frame for the frame on the ground. The temporary support frame is equipped with a frame lifting device (hydraulic jack). The frame lifting device extends and retracts in the vertical direction and its movable end is located at the upper end.

[0053] (2) Assemble the steel structure roof sliding X-shaped frame on the ground, and evenly distribute multiple temporary supports under the steel structure roof sliding X-shaped frame;

[0054] (3) The movable end of the tire frame lifting device is connected via, for example... Figures 5-7 The upper support bracket 11 shown is fixedly connected to the sliding X-shaped frame of the steel structure roof, and the lower end of the frame lifting device is installed with... Figures 8-10 The lower support bracket 12 shown (the upper support bracket 11, the lower support bracket 12 and the frame lifting device 5 are fixedly connected by bolts) is fixed on the temporary support of the frame by a limiting device, which drives all the frame lifting devices under the frame to lift the steel structure roof sliding frame to a certain height. At this time, the stroke of the frame lifting device is extended.

[0055] (4) A standard section of the frame lifting frame is fixedly installed between the temporary support and the sliding X-shaped frame of the steel structure roof. The temporary support of the frame is a standard section of the frame lifting frame. The height of the standard section of the frame lifting frame is equal to a certain height. At this time, the upper bracket of the frame lifting device is stuck above the standard section of the frame lifting frame, that is, the frame lifting device is fixed by the installed standard section of the frame lifting frame.

[0056] Standard section of the jacking frame, 6 as shown Figures 2-4As shown, the whole is a square tube structure, which includes two side plates 8 and a fixed rod 9 for connecting the two side plates, the side plate 8 is a planar structure, including two vertical rods 81 and two horizontal rods 82 connecting the two vertical rods 81, the vertical rod 81 and the horizontal rod 82 integrally enclose a square structure, and the square structure is provided with a W-shaped reinforcing rib 83 for reinforcing the structure, the upper and lower ends of the vertical rod 81 are radially outwardly extended with a connecting fixed plate 10, and the connecting fixed plate is provided with a hole position, adjacent jacking frame standard sections are connected by bolts, and the two sides of the two side plates are fixedly connected by a plurality of fixed rods 9 arranged therebetween (the plurality of fixed rods 9 are connected in a Z-shaped structure), the fixed rod is a channel steel, and the fixed rod and the side plate are connected by bolts;

[0057] (5) remove the limiting device at the lower end of the jig frame jacking device, drive all jig frame jacking devices to shorten the stroke and return to the initial state of step (3);

[0058] (6) install the limiting device at the lower end of the jig frame jacking device to fix the jig frame jacking device with the jig frame jacking frame standard section (the jacking process is as shown in Figures 11-16 ), repeat steps (3) to (5) until the steel structure roof sliding X-type jig is jacked up to the target height.

[0059] It has been verified that the steel structure roof sliding X-type jig has a reasonable overall structure design, compared with the traditional flat plate structure, the two sides of the moving direction are provided with notches, which can greatly facilitate the hoisting of the roof truss members on the jig, avoid the card rod, this is a general type design, which can adapt to the needs of different sliding directions, reduce the requirements for hoisting equipment under the existing technical conditions, reduce the cost, improve the work efficiency, at the same time, the overall structure has good stability, can meet the bearing requirements of heavy roof truss, the contour is formed by straight line splicing, the splicing process requirement is relatively low; the jacking method has good applicability and is relatively simple to operate, the jig jacking device can quickly jack up the jig to the target height, compared with assembling the jig in the air or hoisting the jig, the overall stability is good, the safety is good, and it has excellent application prospect.

[0060] Those skilled in the art should understand that those skilled in the art can realize the change example in combination with the prior art and the above-mentioned embodiments, which will not be described here. Such change examples do not affect the essential content of the present application, which will not be described here.

[0061] The preferred embodiments of the present application have been described. It is to be understood that the application is not limited to the above specific embodiments, and that devices and structures not described in detail should be understood to be implemented in the ordinary way in the art; any person skilled in the art can make many possible changes and modifications to the technical solutions of the present application, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solutions of the present application, which does not affect the essential content of the present application. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the content of the technical solutions of the present application, still belongs to the scope of protection of the technical solutions of the present application.

Claims

1. A sliding X-shaped frame for steel roof structures, characterized in that: The overall shape is butterfly-shaped, consisting of two symmetrically arranged and interconnected triangular parts; The two triangular parts have identical structural shapes and are fixedly connected by a connecting point. The frame is assembled from frame-shaped unit frames; The triangular part is an isosceles right triangle; The vertices of the two triangular parts are connected to each other; The hypotenuses of the two triangular parts are parallel to each other; The direction of travel of the frame is parallel to the hypotenuse of the triangular part; The method for lifting the sliding X-shaped support frame of the steel roof structure includes the following steps: (1) A temporary support frame for the frame is laid on the ground. The temporary support frame for the frame is equipped with a frame lifting device. The frame lifting device extends and retracts in the vertical direction and its movable end is located at the upper end. (2) Assemble the steel structure roof sliding X-shaped frame on the ground and arrange the steel structure roof sliding X-shaped frame on the temporary support of the frame; (3) The movable end of the frame lifting device is fixedly connected to the sliding X-type frame of the steel structure roof. The lower end of the frame lifting device is fixed on the temporary support of the frame through the limiting device. All the frame lifting devices under the frame are driven to lift the sliding frame of the steel structure roof synchronously to a certain height. At this time, the stroke of the frame lifting device is extended. (4) A standard section of the frame lifting frame is fixedly installed between the temporary support and the sliding X-shaped frame of the steel structure roof. The temporary support of the frame includes at least one standard section of the frame lifting frame. The height of the standard section of the frame lifting frame is equal to the certain height. At this time, the upper bracket of the frame lifting device is stuck above the standard section of the frame lifting frame, that is, the frame lifting device is fixed by the installed standard section of the frame lifting frame. (5) Remove the limiting device at the lower end of the tire frame lifting device and drive all tire frame lifting devices to shorten the stroke and return to the initial state of step (3); (6) Install the limiting device at the lower end of the frame lifting device to fix the frame lifting device to the standard section of the frame lifting frame. Repeat steps (3) to (5) until the entire steel structure roof sliding X-type frame is lifted to the target height.

2. The steel structure roof sliding X-shaped frame according to claim 1, characterized in that, With the direction of travel of the tire frame as the head and tail direction, multiple traveling devices are installed on both sides of the tire frame and the traveling devices on both sides correspond one to one. The traveling devices are fixedly connected to the tire frame through the widening frame and the traveling devices are arranged under the widening frame.

3. The steel structure roof sliding X-shaped frame according to claim 1, characterized in that, The upper side of the tire frame is covered with a platform plate.

4. The steel structure roof sliding X-shaped frame according to claim 1, characterized in that, The connection fixing point is equipped with a structural reinforcement device; The frame is provided with a structural reinforcing rod that is connected to the connection fixing point and fixedly connected to the two hypotenuses of the triangular part.

5. A steel structure roof sliding X-shaped frame according to claim 1, characterized in that, The lifting device for the tire frame is a hydraulic jack; Multiple temporary supports for the sliding X-shaped frame of the steel structure roof are evenly distributed under the frame. The temporary support for the tire frame is at least one standard section of the tire frame lifting frame; The standard section of the jacking frame is in the shape of a square tube, which includes two side plates and a fixing rod for connecting the two side plates. The side plate is a planar structure, including two vertical rods and two horizontal rods connecting the two vertical rods. The vertical rods and horizontal rods form a square structure, and the square structure is provided with W-shaped reinforcing ribs for strengthening the structure. The upper and lower ends of the vertical rods are radially extended with connecting and fixing plates, and the connecting and fixing plates have holes. Adjacent standard sections of the lifting frame are fixedly connected by bolts. The two sides of the two side plates are fixedly connected by multiple fixing rods arranged between them. The fixing rods are channel steel and are fixedly connected to the side plates by bolts.

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