Construction method for installing space truss in folded state by integral jacking and segmented rotation

Abstract

The application discloses a construction method for integrally jacking and sectionally rotating and installing a net rack in a folded state, which comprises the following steps: prefabricating an integral structure of a folded net rack, so that the two ends of each net rack are flush; integrally jacking the integral structure of the folded net rack until the lowest layer of the net rack is located at a designed installation position; installing a rotating frame and a hydraulic rod on an existing structure; disconnecting the connection between the lowest layer of the net rack and the top net rack thereof; driving the hydraulic rod to rotate the integral structure of the folded net rack which has been removed around the rotating frame; and repeating the above steps until the integral structure of the folded net rack is unfolded, so that the construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building construction technology, and particularly relates to a construction method for integrally jacking up and installing a net rack in a folded state in sections. BACKGROUND

[0002] With the construction of large venues, the application of net racks is also more and more extensive. For large-span net racks, due to the large span and large shear force of the large-span net rack, it cannot be directly hoisted, and in addition, due to the narrowness of the existing structure, the large-span net rack cannot be directly jacked up and installed. SUMMARY

[0003] The present application aims to overcome the defects of the prior art and provide a construction method for integrally jacking up and installing a net rack in a folded state in sections. The large-span net rack is divided into a double-layer net rack, the double-layer net rack is integrally jacked up and rotated, and the installation of the large-span net rack is realized.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present application is a construction method for integrally jacking up and installing a net rack in a folded state in sections, comprising the following steps:

[0005] Step 1: prefabricate multiple sections of net racks, stack the multiple sections of net racks into multiple layers, and connect support rods between adjacent upper and lower layers of net racks to form a folded net rack overall structure with both ends flush;

[0006] Step 2: set up a jacking frame;

[0007] Step 3: hoist the folded net rack overall structure and connect it with the jacking frame;

[0008] Step 4: integrally jack up the folded net rack overall structure until the bottom layer of net racks is located at the designed installation position;

[0009] Step 5: fix the bottom layer of net racks on the existing structure and remove the support rods between the bottom layer of net racks and the upper layer of net racks;

[0010] Step 6: install a rotating frame on the existing structure corresponding to the position of one end of the bottom layer of net racks, and hinge the removed folded net rack overall structure to the rotating frame;

[0011] Step 7: turn on the first hydraulic rod and the second hydraulic rod respectively on both sides of the rotating frame on the existing structure, so that the connection points of the first hydraulic rod, the second hydraulic rod and the rotating frame with the existing structure are located on the same straight line;

[0012] Step 8: Connect the first hydraulic rod to the dismantled folding mesh frame structure; drive the first hydraulic rod to extend, causing the dismantled folding mesh frame structure to rotate around the rotating frame until it rotates 90 degrees and then stop driving; connect the second hydraulic rod to the dismantled folding mesh frame structure and remove the first hydraulic rod.

[0013] Step 9: Drive the second hydraulic rod to shorten, causing the dismantled folded mesh frame structure to continue rotating around the rotating frame until it rotates 90 degrees. Stop driving when the bottom layer of the dismantled folded mesh frame structure is fixed to the existing structure, and remove the second hydraulic rod.

[0014] Step 10: Repeat steps 6 to 9 above until the entire folded mesh frame structure is flattened;

[0015] Step 11: Remove all the rotating frames and lifting frames, and reinforce the adjacent space frames with interlocking.

[0016] A further improvement of the construction method of the present invention, which involves lifting the entire structure in a folded state and rotating it in sections, is that, in step 7, the distance between the first hydraulic rod and the rotating frame, and the distance between the second hydraulic rod and the rotating frame, are both less than the length of the space frame.

[0017] The construction method of the present invention, which involves lifting the entire structure in a folded state and rotating it in sections, is further improved in that the number of the first hydraulic rods is multiple, and the multiple first hydraulic rods are spaced apart along the length direction of the bottommost space frame. During step 8, the multiple first hydraulic rods are connected to the overall structure of the folded space frame after it has been dismantled.

[0018] A further improvement of the construction method of the present invention, which involves lifting the entire structure in a folded state and rotating it in sections, is that, in step 8, the first hydraulic rod passes through the gap of the bottommost space frame and connects with the overall structure of the dismantled folded space frame. The gap satisfies the swing space requirements when the first hydraulic rod drives the overall structure of the dismantled folded space frame to rotate.

[0019] The construction method of the present invention, which involves lifting the entire structure in a folded state and rotating it in sections, is further improved in that the rotating frame is connected to a pin, which is perpendicular to the length direction of the bottommost grid frame and is set horizontally. In step 6, the dismantled folded grid frame structure is connected to the pin.

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] The installation of the large-span space frame was achieved by converting it into a multi-layer space frame structure with a smaller span, lifting it as a whole, and rotating and flattening the top layer space frame. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram showing the connection between the folded space frame and the lifting frame in the construction method of the present invention, which involves lifting the space frame as a whole in a folded state and rotating it in sections.

[0024] Figure 2 This is a schematic diagram of the overall lifting and positioning of the folded space frame structure, which is the construction method of the present invention, which involves lifting the space frame as a whole in a folded state and rotating it in sections.

[0025] Figure 3 This is a schematic diagram of the overall rotating state of the folded space frame after dismantling, which is the result of the construction method of the present invention, which involves lifting the space frame as a whole in a folded state and rotating it in sections.

[0026] Figure 4 This is a schematic diagram showing the overall structure of the folded space frame after dismantling and rotating into place, based on the construction method of the present invention, which involves lifting the space frame as a whole in a folded state and rotating it in sections.

[0027] Figure 5 This is a schematic diagram of the overall structure of the folded space frame after it has been flattened, which is the construction method of the present invention for lifting the space frame as a whole in a folded state and rotating it in sections.

[0028] In the diagram: 1. Lifting frame; 2. Bottom layer of space frame; 3. Overall structure of the folded space frame after dismantling; 4. Support rod; 5. Rotating frame; 6. First hydraulic rod; 7. Second hydraulic rod. Detailed Implementation

[0029] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0030] The following description, in conjunction with the accompanying drawings and specific embodiments, provides a more detailed explanation of the construction method of the present invention, which involves lifting the entire space frame in a folded state and rotating it in sections for installation.

[0031] Please see Figures 1-5 As shown, the construction method of lifting the space frame as a whole in a folded state and then rotating it in sections includes the following steps:

[0032] Step 1: Preparing multiple segmental net racks, stacking the multiple segmental net racks into multiple layers, and connecting support rods 4 between the upper and lower adjacent layers of the net racks to form a folded net rack overall structure with both ends flush;

[0033] Step 2: Setting up a jacking frame 1;

[0034] Step 3: Hoisting the folded net rack overall structure and connecting it with the jacking frame 1;

[0035] Step 4: Overall jacking the folded net rack overall structure until the bottom layer of net racks 2 is located at the designed installation position;

[0036] Step 5: Fixing the bottom layer of net racks 2 on the existing structure and removing the support rods 4 between the bottom layer of net racks 2 and the upper layer of net racks;

[0037] Step 6: Installing a rotating frame 5 on the existing structure corresponding to the position of one end of the bottom layer of net racks 2, and hinging the removed folded net rack overall structure 3 with the rotating frame 5;

[0038] Step 7: Rotating and connecting a first hydraulic rod 6 and a second hydraulic rod 7 on both sides of the rotating frame 5 on the existing structure, respectively, so that the connection points of the first hydraulic rod 6, the second hydraulic rod 7, and the rotating frame 5 on the existing structure are located on the same straight line;

[0039] Step 8: Connecting the first hydraulic rod 6 with the removed folded net rack overall structure 3, driving the first hydraulic rod 6 to elongate, driving the removed folded net rack overall structure 3 to rotate around the rotating frame 5, stopping driving when rotating 90 degrees, connecting the second hydraulic rod 7 with the removed folded net rack overall structure 3, and removing the first hydraulic rod 6;

[0040] Step 9: Driving the second hydraulic rod 7 to shorten, driving the removed folded net rack overall structure 3 to continue rotating around the rotating frame 5, stopping driving when rotating 90 degrees, fixing the bottom layer of net racks of the removed folded net rack overall structure 3 on the existing structure, and removing the second hydraulic rod 7;

[0041] Step 10: Repeating the above steps 6-9 until the folded net rack overall structure is flattened;

[0042] Step 11: Removing all rotating frames 5 and jacking frames 1, and embedding and reinforcing between adjacent net racks.

[0043] Specifically, the number of jacking frames 1 is multiple, and multiple jacking frames 1 are arranged along the length direction of the folded net rack overall structure.

[0044] By arranging multiple jacking frames 1, the stability of jacking is improved when performing step 4.

[0045] Preferably, the distance between the first hydraulic rod 6 and the rotating frame 5 and the distance between the second hydraulic rod 7 and the rotating frame 5 are both less than the length of the net frame when step 7 is performed.

[0046] Preferably, the first hydraulic rod 6 is in plurality, and the plurality of first hydraulic rods 6 are arranged along the length direction of the bottom layer net frame 2, and the plurality of first hydraulic rods 6 are connected with the removed folded net frame whole structure 3 when step 8 is performed.

[0047] By arranging the plurality of first hydraulic rods 6, the rotation stability is improved when step 8 is performed.

[0048] Preferably, the first hydraulic rod 6 passes through the gap of the bottom layer net frame 2 and is connected with the removed folded net frame whole structure 3 when step 8 is performed, and the gap meets the swing space requirement of the first hydraulic rod 6 driving the removed folded net frame whole structure 3 to rotate.

[0049] Preferably, the rotating frame 5 is connected with a pin shaft, the pin shaft is arranged vertically to the length direction of the bottom layer net frame 2 and horizontally, and the removed folded net frame whole structure 3 is connected with the pin shaft when step 6 is performed.

[0050] Specifically, the rotating frame 5 is connected with a hinge, the rotating shaft of the hinge is arranged vertically to the length direction of the bottom layer net frame 2 and horizontally, one side flange plate of the hinge is connected with the rotating frame 5, and the other side flange plate is connected with the removed folded net frame whole structure 3 when step 6 is performed.

[0051] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification, so that people skilled in the art can understand and read, and are not used to limit the limiting conditions that the present application can be implemented, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that the present application can produce, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the present specification are only for the convenience of clear description, and are not used to limit the scope of the present application, and the change or adjustment of the relative relationship is also regarded as the implementation of the present application without changing the technical content.

[0052] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application, and any person skilled in the art can make some changes or modifications to the above disclosed technical contents to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not depart from the technical solution of the present application. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still belong to the scope of the technical solution of the present application.

Claims

1. A construction method for integrally jacking up and segmentally rotating a space truss in a folded state, characterized in that, The method comprises the steps of: Step 1: prefabricating multiple-section net racks, stacking the multiple-section net racks into multiple layers, and connecting support rods between adjacent upper and lower layers of the net racks to form a folded net rack overall structure with both ends flush; Step 2: erecting a jacking frame; Step 3: hoisting the folded net rack overall structure and connecting the folded net rack overall structure with the jacking frame; Step 4: jacking up the folded net rack overall structure until the bottom layer of the net racks is located at a designed installation position; Step 5: fixing the bottom layer of the net racks on an existing structure and removing the support rods between the bottom layer of the net racks and the upper layer of the net racks; Step 6: installing a rotating frame on the existing structure at a position corresponding to one end of the bottom layer of the net racks, and connecting the folded net rack overall structure after removal with the rotating frame; Step 7: rotating and connecting a first hydraulic rod and a second hydraulic rod on the existing structure on both sides of the rotating frame respectively, so that the connection points of the first hydraulic rod, the second hydraulic rod and the rotating frame on the existing structure are located on the same straight line; Step 8: connecting the first hydraulic rod with the folded net rack overall structure after removal, driving the first hydraulic rod to elongate, rotating the folded net rack overall structure after removal around the rotating frame, stopping driving when the rotation is 90 degrees, connecting the second hydraulic rod with the folded net rack overall structure after removal, and removing the first hydraulic rod; Step 9: driving the second hydraulic rod to shorten, rotating the folded net rack overall structure after removal around the rotating frame, stopping driving when the rotation is 90 degrees, fixing the bottom layer of the net racks of the folded net rack overall structure after removal on the existing structure, and removing the second hydraulic rod; Step 10: repeating steps 6 to 9 until the folded net rack overall structure is unfolded; Step 11: removing all the rotating frames and the jacking frame, and embedding and reinforcing between adjacent net racks.

2. The construction method of claim 1, wherein the method is characterized by, When step 7 is performed, the distance between the first hydraulic rod and the rotating frame and the distance between the second hydraulic rod and the rotating frame are both less than the length of the net rack.

3. The construction method of claim 1, wherein the method is characterized by: The number of the first hydraulic rods is multiple, and the multiple first hydraulic rods are arranged at intervals along the length direction of the bottom layer of the net racks. When step 8 is performed, the multiple first hydraulic rods are all connected with the folded net rack overall structure after removal.

4. The construction method of claim 1, wherein the method is characterized by: When step 8 is performed, the first hydraulic rod passes through a gap of the bottom layer of the net racks and is connected with the folded net rack overall structure after removal, and the gap meets the swing space requirement of the first hydraulic rod driving the folded net rack overall structure after removal to rotate.

5. The construction method of claim 1, wherein the method is characterized by: The rotating frame is connected with a pin shaft, the pin shaft is arranged vertically to the length direction of the bottom layer of the net racks and horizontally, and the folded net rack overall structure after removal is connected with the pin shaft when step 6 is performed.

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