Attached type lifting scaffold and construction method thereof

Abstract

The present application relates to a kind of attached lifting scaffold and its construction method, the structure is used for the construction of building structure with overhanging layer and shrink layer, including truss frame body, climbing frame body and lifting mechanism, truss frame body is correspondingly installed on the outer facade of shrink layer, and the outer facade of truss frame body is aligned with overhanging layer;First climbing guide rail is provided on the truss frame body along longitudinal direction, and the outer facade of shrink layer is installed with the first wall support matched with first climbing guide rail;Climbing frame body is installed on the outer facade of truss frame body;Second climbing guide rail is provided on the climbing frame body along longitudinal direction, and the outer facade of truss frame body and the outer facade of overhanging layer are installed with the second wall support matched with second climbing guide rail;Lifting mechanism is used to control first climbing guide rail relative sliding along first wall support, or control second climbing guide rail relative sliding along second wall support.The present application adopts the structure of truss and climbing frame combination, can solve the construction problem of concave and convex structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of climbing frame construction, and in particular to an attached lifting scaffold and a construction method thereof. BACKGROUND

[0002] The attached lifting scaffold device is a new type of scaffold technology, which changes high-altitude work into low-altitude work and changes suspended work into internal work of the frame body, and has the characteristics of low carbon, high technology content, and more economy, safety and convenience. The attached lifting scaffold refers to a scaffold erected at a certain height and attached to the engineering structure, which is lifted or lowered layer by layer by relying on its own lifting equipment.

[0003] At present, the overall climbing technology of the attached lifting scaffold is more and more widely used in the application of the main structure of the house building. With the diversification and complication of the building structure, the requirements for the climbing frame are also improved. However, the use of the attached lifting scaffold is limited to single, regular and unified building structure. Since the attached lifting scaffold is designed in a fixed form, it cannot be used for construction when the structure of the outer facade is complex or the structure of the building changes (for example, some layers are convex or concave).

[0004] In view of the above structural changes, the solutions include: according to the structure of the outer facade of the building, a cantilever structure is added, and a steel pipe frame is erected on the cantilever structure to protect the outer wall for construction. The disadvantage is that the erection and removal process is complicated, the labor cost and material cost are high, the overall construction efficiency is low, and the construction safety risk is increased. Another solution is to add a complete set of attached scaffolds according to the structural changes, which undoubtedly also greatly increases the time, material and labor costs, increases the risk in the erection process, and reduces the overall construction efficiency. SUMMARY

[0005] The present application provides an attached lifting scaffold and a construction method thereof to solve the above technical problems.

[0006] To solve the above technical problems, the present application provides an attached lifting scaffold for construction of a building structure with a cantilever layer and a shrinkage layer, comprising a truss frame body, a climbing frame body and a lifting mechanism,

[0007] The truss frame body is installed on the outer facade of the shrinkage layer, and the outer facade of the truss frame body is aligned with the cantilever layer. The truss frame body is provided with a first climbing guide rail arranged in the longitudinal direction, and the outer facade of the shrinkage layer is provided with a first wall-attached support matched with the first climbing guide rail.

[0008] The climbing frame body is installed on the outer facade of the truss frame body; the second climbing guide rail is longitudinally arranged on the climbing frame body; the outer facade of the truss frame body and the outer facade of the overhanging layer are provided with the second wall abutment matched with the second climbing guide rail;

[0009] The lifting mechanism is used for controlling the relative sliding of the first climbing guide rail along the first wall abutment or the relative sliding of the second climbing guide rail along the second wall abutment.

[0010] Preferably, the truss frame body comprises vertical rods, the horizontal rods are connected between the vertical rods, and the horizontal rods are longitudinally provided with multiple layers, and the horizontal rods are provided with a zigzag support between two layers.

[0011] Preferably, the zigzag support is paved with a walkway plate, and the climbing frame body is paved with multiple layers of walkway plates.

[0012] Preferably, the bottommost walkway plate adopts a full-closed shutter; and the second layer and the walkway plates above the second layer adopt steel mesh sheets.

[0013] Preferably, the horizontal rods are provided with mounting panels for mounting the second wall abutment.

[0014] Preferably, the main structure of the building structure is provided with a wall-penetrating bolt for fixed connection with the first wall abutment or the second wall abutment.

[0015] Preferably, the lifting mechanism adopts an electric hoist.

[0016] Preferably, the truss frame body and the climbing frame body are made of aluminum alloy materials.

[0017] The application further provides a construction method of the attached lifting scaffold.

[0018] Step 1: embedding a plastic pipe in a corresponding position of the main structure of the building structure, sealing two ends of the plastic pipe with adhesive tape, and matching the position of the plastic pipe with the center of the first climbing guide rail and the second climbing guide rail;

[0019] Step 2: installing a wall-penetrating bolt in the position of the plastic pipe;

[0020] Step 3: installing the truss frame body on the outer facade of the contraction layer according to the position of the wall-penetrating bolt, and installing the climbing frame body on the outer facade of the truss frame body;

[0021] Step 4: When constructing the shrinkage layer: fix the lifting mechanism to the first climbing guide rail, control the lifting mechanism to drive the first climbing guide rail to slide relative to the first wall support, and the truss frame and the climbing frame frame are lifted synchronously; when constructing the cantilever layer: transfer the lifting mechanism to fix it to the second climbing guide rail, control the lifting mechanism to drive the second climbing guide rail to slide relative to the second wall support, and the climbing frame frame is gradually separated from the truss frame as it is lifted;

[0022] Step 5: After the climbing scaffold body separates from the truss body, the climbing scaffold body continues to be lifted along the second wall-mounted support on the outer facade of the cantilevered layer under the drive of the second climbing guide rail until the construction is completed.

[0023] Preferably, in step 5, after the climbing frame body is separated from the truss frame body, the truss frame body is dismantled and installed at the next shrinkage layer.

[0024] Compared with the prior art, the attached lifting scaffold and its construction method provided by the present invention have the following advantages:

[0025] 1. The present invention adopts a combination structure of truss and climbing formwork. Compared with the existing technology that uses two sets of scaffolding to solve the construction problem of the structural shrinkage layer, the present invention can greatly reduce the financial and human resources input of the construction party, and has less requirements for on-site construction conditions, and less requirements for season, weather, machinery and workers.

[0026] 2. This invention can save a lot of time during the construction of the structural shrinkage layer. The removal of the inner truss frame will not interfere with the construction of the floor structure, and there is no need to erect a cantilever structure to assemble a second set of scaffolding. The entire construction process can maintain the same high efficiency as the standard floor construction, saving time and costs.

[0027] 3. This invention eliminates the need for cantilever structures to meet the requirements of ordinary steel pipe scaffolding erection or secondary high-altitude assembly of scaffolding, thereby avoiding safety risks. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the attached lifting scaffold in a specific embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the truss frame structure in a specific embodiment of the present invention;

[0030] Figure 3a and Figure 3b These are schematic diagrams of the climbing process in a specific embodiment of the present invention.

[0031] In the figure: 01 - overhanging layer, 02 - shrinkage layer; 10 - truss body, 11 - vertical rod, 12 - cross rod, 13 - "Z" brace, 14 - fully closed shutter, 15 - steel mesh, 16 - mounting panel, 17 - flap, 20 - climbing frame body, 30 - lifting mechanism, 40 - first climbing guide rail, 50 - second climbing guide rail, 60 - first wall support, 61 - wall bolt, 70 - second wall support. DETAILED DESCRIPTION

[0032] In order to more fully describe the technical solutions of the above-mentioned application, the following specific examples are listed to prove the technical effects; it needs to be emphasized that these examples are used to illustrate the application and are not limited to limit the scope of the application.

[0033] The attached lifting scaffold provided by the application, as shown in Figure 1 for the construction of a building structure with an overhanging layer 01 (corresponding to the convex part of the building structure) and a shrinkage layer 02 (corresponding to the concave part of the building structure), comprising a truss body 10, a climbing frame body 20 and a lifting mechanism 30, wherein:

[0034] The truss body 10 is arranged on the outer facade of the shrinkage layer 02, and the outer facade of the truss body 10 is aligned with the overhanging layer 01; the truss body 10 is provided with a first climbing guide rail 40 arranged in the longitudinal direction, and the outer facade of the shrinkage layer 02 is provided with a first wall support 60 matched with the first climbing guide rail 40, the first climbing guide rail 40 can be connected with the first wall support 60 and slide relative to each other, so as to realize the lifting of the truss body 10.

[0035] The climbing frame body 20 is arranged on the outer facade of the truss body 10; the climbing frame body 20 is provided with a second climbing guide rail 50 arranged in the longitudinal direction, and the outer facade of the truss body 10 and the outer facade of the overhanging layer 01 are provided with a second wall support 70 matched with the second climbing guide rail 50, the second climbing guide rail 50 can be connected with the second wall support 70 and slide relative to each other, so as to realize the lifting of the climbing frame body 20.

[0036] The lifting mechanism 30 serves as a power mechanism for lifting, which is used to control the relative sliding of the first climbing guide rail 40 along the first wall support 60, or control the relative sliding of the second climbing guide rail 50 along the second wall support 70.

[0037] The truss and climbing frame combined structure solves the problem of irregular facade construction difficulty, and has low cost and small requirement for site construction conditions (such as season, weather, machinery and worker factors); the present application can save a lot of time when the shrinkage layer 02 is constructed, the inner truss frame body 10 is not removed to interfere with the floor structure construction, and a cantilever structure does not need to be set up to assemble the second set of scaffold; the whole construction process can maintain the same high efficiency as the standard layer construction, and save time cost; in addition, the present application does not need to set up a cantilever structure to meet the general steel pipe frame erection or scaffold secondary high-altitude assembly, so as to avoid safety risks.

[0038] In some embodiments, please refer to Figure 1 and Figure 2 , the truss frame body 10 can be connected with the first climbing guide rail 40 by bolts to form an integral whole, the first wall support 60 is fixedly connected with the main structure, and the first climbing guide rail 40 is connected with the first wall support 60, so as to install the truss frame body 10 at the shrinkage layer 02. In some embodiments, the truss frame body 10 includes vertical rods 11, the vertical rods 11 are connected with horizontal rods 12, the horizontal rods 12 are provided with multiple layers along the longitudinal direction, and a zigzag brace 13 is arranged between two layers of the horizontal rods 12. The horizontal rods 12 can ensure the integrity of the truss frame body 10, and are reinforced by the zigzag brace 13. In some embodiments, a walkway plate is arranged on the zigzag brace 13, and multiple layers of walkway plates are arranged in the climbing frame body 20, which are used to provide an operation platform for personnel; a turnover plate 17 can also be installed on the walkway plate to block the gap of the connecting part and ensure construction safety. In some embodiments, the walkway plate at the bottom layer adopts a full-closed gate plate 14; the walkway plates at the second layer and above adopt steel mesh sheets 15, which not only play a protective role, but also reduce the overall weight of the structure.

[0039] In some embodiments, please refer to Figure 2 , the horizontal rods 12 are provided with mounting panels 16 for mounting the second wall supports 70, and the mounting panels 16 can connect the inner truss frame body 10 and the outer climbing frame body 20 into an integral whole.

[0040] In some embodiments, please refer to Figure 1 , the main structure of the building structure is provided with a wall-penetrating bolt 61 for fixedly connecting with the first wall support 60 or the second wall support 70, so as to ensure the firmness of the overall structure.

[0041] It should be noted that, due to the truss and climbing frame combined structure adopted by the present application, the local self weight of the structure is increased, so that the machine position arrangement can be considered to be reduced from the conventional 3m interval to 1 every 2m; the overall width of the local structure reaches 1950mm, in order to ensure the reliability and stability of the overall structure; the overall force of the external climbing frame body 20 is connected with the internal truss body 10, and the internal truss body 10 is directly connected with the main structure; due to the large self weight of the structure, the length of the guide rail at each machine position at the combined part can be set to 4 times the layer height, and 4 layers of wall attachment supports (including the first wall attachment support 60 and the second wall attachment support 70) are arranged inside and outside; the lifting mechanism 30 can adopt an electric hoist (the maximum load of a single machine position is 7.5T); in order to further reduce the self weight, the truss body 10 and the climbing frame body 20 can be made of aluminum alloy material.

[0042] Please refer to Figure 3a and 3b in combination with Figure 1 and Figure 2 The present application also provides a construction method of the attached lifting scaffold as described above, comprising the following steps:

[0043] Step 1: embed plastic pipes at the corresponding positions of the main structure of the building structure, seal the two ends of the plastic pipes with adhesive tape, and after the completion of the beam and slab reinforcement binding, the embedded plastic pipes can be used as the installation holes of the wall attachment supports and the force receiving parts of the lifting mechanism 30; the embedding of the installation holes should ensure the perpendicularity deviation between the layers, for example, the deviation is controlled to be + 1cm. The position of the plastic pipe should correspond to the center of the first climbing guide rail 40 and the second climbing guide rail 50 to prevent excessive friction between the guide rail and the wall attachment support during lifting and affect the lifting.

[0044] Step 2: install wall penetrating bolts 61 at the positions of the plastic pipes. Of course, each installation hole needs to be inspected first, and if it is found that the installation hole is not open, it must be drilled before the wall penetrating bolt 61 is installed.

[0045] Step 3: according to the position of the wall penetrating bolt 61, install the truss body 10 on the outer facade of the shrinkage layer 02, and install the climbing frame body 20 on the outer facade of the truss body 10. After installation, prepare for lifting: first, check all possible interference objects in the air and on the floor edge of the scaffold, clean all debris on the scaffold, and prevent falling objects from hurting people during lifting.

[0046] Step 4: When constructing the shrinkage layer 02: First, pre-tighten the internal lifting chain of the truss frame 10, check the lifting points, lifting rings, slings, the condition of the pendulum-type fall arrestor, and the condition of the sealing plate, etc., and conduct a self-inspection of the tools and scaffold accessories. If any problems are found, rectify them in time. Lifting can only proceed after the rectification is qualified. The specific lifting steps include: fixing the lifting mechanism 30 to the first climbing guide rail 40, controlling the lifting mechanism 30 to drive the first climbing guide rail 40 to slide relative to the first wall-mounted support 60, and lifting the truss frame 10 and the climbing frame 20 synchronously.

[0047] When constructing the cantilevered layer 01: The lifting mechanism 30 is transferred to be fixedly connected to the second climbing guide rail 50. The lifting force point is fixedly connected to the truss frame 10 using 36mm diameter high-strength connecting bolts. Then, the lifting chain of the outer climbing frame 20 is pre-tightened. The condition of the lifting points, lifting rings, slings, pendulum fall arresters, and sealing plates are checked. The tools and scaffolding accessories are also self-inspected. Any problems found are rectified promptly. Lifting can only proceed after rectification is deemed satisfactory. Specific lifting steps include: controlling the lifting mechanism 30 to drive the second climbing guide rail 50 to slide relative to the second wall-mounted support 70, such as... Figure 3a and 3b As shown, the climbing frame 20 gradually separates from the truss frame 10 as it is lifted. After the second wall-mounted support 70 at the bottom of the climbing frame 20 slides out of the second climbing guide rail 50, the removed second wall-mounted support 70 can be installed at the corresponding position at the top, thus achieving recycling.

[0048] In other words, during the construction of the contraction layer 02, the inner lifting position is used. When the transition from the contraction layer 02 to the cantilever layer 01 occurs, the outer lifting position is used. At this time, the inner truss frame 10 remains in its original position, completing the layer-by-layer separation of the climbing scaffold 20 from the inner truss frame 10. After each layer of the outer climbing scaffold 20 is lifted, the fixed end of the upper second wall-mounted support 70 changes from the position of the truss frame 10 to its fixed position on the cantilever layer 01. After four lifting operations (four layers of wall-mounted supports), the climbing scaffold 20 and the inner truss frame 10 are completely separated without interfering with the structural construction.

[0049] Step 5: After the climbing scaffold 20 is separated from the truss scaffold 10, the climbing scaffold 20 continues to be lifted along the second wall-mounted support 70 on the outer facade of the cantilevered layer 01 under the drive of the second climbing guide rail 50 until the construction is completed.

[0050] In addition, during the lifting process, stress testing and manual inspection can be used to check the connection points between the truss frame 10 and the climbing frame 20. If any displacement or misalignment is found, the lifting should be stopped and manual adjustment should be performed.

[0051] Using the above method, during structural contraction, the inner first climbing guide rail 40 connects to the truss frame 10, and then to the outer climbing scaffold frame 20. This solves the problem of working surface protection during structural contraction and cantilever changes, and provides an operating platform for exterior facade construction. Once the contraction layer 02 is completed, simply changing the lifting mechanism 30 from the inner to the outer side allows for the climbing scaffold frame 20 to be lifted and separated from the inner truss frame 10 layer by layer. After multiple lifts, the two are completely separated, transforming into a regular attached lifting scaffold (climbing scaffold).

[0052] In some embodiments, in step 5, after the climbing scaffold 20 is separated from the truss frame 10, the truss frame 10 and the machine position can be dismantled and installed at the next shrinkage layer 02 for reuse, saving costs; at this time, the climbing scaffold 20 is completely restored to its conventional form. In some embodiments, the truss frame 10 can be dismantled in the air in a piecemeal manner, and dismantled layer by layer from top to bottom.

[0053] In summary, the attached lifting scaffold and its construction method provided by the present invention include a truss frame 10, a climbing scaffold 20, and a lifting mechanism 30. The truss frame 10 is installed on the outer facade of the contraction layer 02, and the outer facade of the truss frame 10 is aligned with the cantilever layer 01. The truss frame 10 is provided with a first climbing guide rail 40 arranged longitudinally, and a first wall-mounted support 60 matching the first climbing guide rail 40 is installed on the outer facade of the contraction layer 02. The climbing scaffold 20... 0 is installed on the outer facade of the truss frame 10; the climbing frame 20 is provided with a second climbing guide rail 50 arranged longitudinally, and a second wall-mounted support 70 matching the second climbing guide rail 50 is installed on the outer facade of the truss frame 10 and the outer facade of the cantilever layer 01; the lifting mechanism 30 serves as a lifting power mechanism, used to control the first climbing guide rail 40 to slide relative to the first wall-mounted support 60, or to control the second climbing guide rail 50 to slide relative to the second wall-mounted support 70. This invention employs a combination of truss and climbing scaffolding, solving the problem of difficult construction on irregular facades. It is also low-cost and has fewer requirements regarding on-site construction conditions (such as season, weather, machinery, and worker factors). This invention significantly saves time during the construction of the structural contraction layer 02. The removal of the inner truss frame 10 does not interfere with the floor structure construction, and there is no need to erect a cantilever structure to assemble a second set of scaffolding. The entire construction process maintains the same high efficiency as standard floor construction, saving time and costs. Furthermore, this invention eliminates the need for cantilever structures to accommodate ordinary steel pipe scaffolding or secondary high-altitude scaffolding assembly, thus avoiding safety risks.

[0054] Obviously, those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Therefore, if these modifications and variations fall within the scope of the claims of the invention and their equivalents, the invention is also intended to include these modifications and variations.

Claims

1. A construction method for an attached lifting scaffold, used for building structure construction with cantilevered layers and contraction layers, characterized in that, The attached lifting scaffold includes a truss frame, a climbing frame, and a lifting mechanism. The truss frame is installed on the exterior of the contraction layer, and the exterior of the truss frame is aligned with the cantilever layer; the truss frame is provided with a first climbing guide rail arranged longitudinally, and a first wall-mounted support matching the first climbing guide rail is installed on the exterior of the contraction layer. The climbing frame is installed on the outer facade of the truss frame; the climbing frame is provided with a second climbing guide rail arranged longitudinally, and a second wall-mounted support matching the second climbing guide rail is installed on the outer facade of the truss frame and the outer facade of the cantilevered layer; The lifting mechanism is used to control the first climbing guide rail to slide relative to the first wall-mounted support, or to control the second climbing guide rail to slide relative to the second wall-mounted support; The construction method includes the following steps: Step 1: Embed plastic pipes at corresponding positions in the main structure of the building structure. Seal both ends of the plastic pipes with tape. The position of the plastic pipes corresponds to the center of the first climbing guide rail and the second climbing guide rail. Step 2: Install through-wall bolts at the location of the plastic pipe; Step 3: Based on the location of the through-wall bolts, install the truss frame on the outer facade of the shrinkage layer, and then install the climbing frame on the outer facade of the truss frame; Step 4: When constructing the shrinkage layer: fix the lifting mechanism to the first climbing guide rail, control the lifting mechanism to drive the first climbing guide rail to slide relative to the first wall support, and the truss frame and the climbing frame frame are lifted synchronously; when constructing the cantilever layer: transfer the lifting mechanism to fix it to the second climbing guide rail, control the lifting mechanism to drive the second climbing guide rail to slide relative to the second wall support, and the climbing frame frame is gradually separated from the truss frame as it is lifted; Step 5: After the climbing scaffold body separates from the truss body, the climbing scaffold body continues to be lifted along the second wall-mounted support on the outer facade of the cantilevered layer under the drive of the second climbing guide rail until the construction is completed.

2. The construction method as described in claim 1, characterized in that, The truss frame includes uprights, and horizontal bars are connected between the uprights. The horizontal bars are arranged in multiple layers along the longitudinal direction, and a zigzag brace is provided between two layers of horizontal bars.

3. The construction method as described in claim 2, characterized in that, The zigzag support is covered with walkway slabs, and the climbing frame is covered with multiple layers of walkway slabs.

4. The construction method as described in claim 3, characterized in that, The bottommost walkway slab uses a fully enclosed gate; the second and upper walkway slabs use steel mesh panels.

5. The construction method as described in claim 2, characterized in that, The crossbar is provided with a mounting panel for installing the second wall-mounted support.

6. The construction method as described in claim 1, characterized in that, The main structure of the building is equipped with through-wall bolts for fixing to the first or second wall-mounted support.

7. The construction method as described in claim 1, characterized in that, The lifting mechanism uses an electric hoist for lifting.

8. The construction method as described in claim 1, characterized in that, Both the truss frame and the climbing frame are made of aluminum alloy.

9. The construction method as described in claim 1, characterized in that, In step 5, after the climbing frame body is separated from the truss frame body, the truss frame body is dismantled and installed at the next shrinkage layer.

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