Scaffold outside basement in narrow space

Abstract

The utility model provides a narrow space basement external scaffold which comprises an external scaffold body, the first side of the external scaffold body is connected to a waist beam of a foundation pit supporting protection wall, and the second side of the external scaffold body is close to a basement structure; the outer scaffold body comprises sectional type outer side vertical rods and inner side vertical rods parallel to the basement structure. Any section of the outer side vertical rod is connected to the waist beam in an abutting mode through a top support with the adjustable height. Cross rod connecting assemblies are connected between the inner side vertical rod and the outer side vertical rods in a criss-cross mode. According to the external scaffold, the sectional type outer side vertical rods are connected to the foundation pit supporting protection wall, compatibility is provided for a narrow space, the inner side vertical rods are parallel to the outer wall of the basement structure, sufficient construction space is reserved, the overall stability of the external scaffold body is guaranteed, meanwhile, the construction range is wider, the construction progress is accelerated, and the construction quality is improved.

Description

Technical Field

[0001] This application relates to the technical field of construction engineering, and particularly to an external basement scaffold in a narrow space. Background Art

[0002] With the increasingly tight urban development land, especially the utilization of underground space in the city center, the basement foundation pits basically adopt pile-anchor support structures. It often occurs that the distance between the external wall of the basement and the support structure is relatively close, resulting in a narrow space during the construction of the external wall of the basement structure, and the double-row scaffold cannot be erected normally.

[0003] When carrying out the construction operation of the external wall of the basement structure, the installation and positioning of the external scaffold are unstable. It is common to embed connecting wall members in the external shear wall of the basement structure to connect the external scaffold, which poses a severe test to the construction safety and the waterproof construction quality in the later stage. In the narrow construction space, when installing a large number of pipe fittings as the external scaffold and fixing them, the remaining construction area is small and the construction coverage is not comprehensive. Therefore, it causes the disadvantages of inconvenient construction and poor stability of the external scaffold, indirectly affecting the construction quality. Utility Model Content

[0004] This application provides an external basement scaffold in a narrow space, which integrates the external scaffold body with the foundation pit support structure, ensures the safe use of the external scaffold body, does not affect the waterproof construction of the external wall of the basement structure, and guarantees the waterproof quality of the external wall.

[0005] The external basement scaffold provided by this application includes: an external scaffold body, the first side of the external scaffold body is connected to the waist beam of the foundation pit support retaining wall, and the second side of the external scaffold body is close to the basement structure;

[0006] The external scaffold body includes: segmented outer vertical poles and inner vertical poles arranged parallel to the basement structure; wherein,

[0007] Any section of the outer vertical pole is connected to the waist beam by a height-adjustable jack;

[0008] Crossbar connection components are connected vertically and horizontally between the inner vertical poles and multiple sections of the outer vertical poles.

[0009] In this application, by connecting the segmented outer vertical poles to the foundation pit support retaining wall, compatibility is provided for the narrow space. The inner vertical poles are parallel to the external wall of the basement structure, leaving sufficient construction space. While ensuring the overall stability of the external scaffold body, the construction scope is wider, the construction process is accelerated, and the construction quality is improved.

[0010] In a specific feasible implementation, the inner vertical pole is a continuous rod body, and the inner vertical pole is parallel to the vertical outer wall of the basement structure. The construction process is simple, and the continuous inner vertical pole has reliable firmness performance.

[0011] In a specific feasible implementation, a concrete cushion is poured between the basement structure and the bottom of the foundation pit support retaining wall, and a drainage ditch structure is provided on the concrete cushion. Good drainage facilities do not affect normal construction.

[0012] In a specific feasible implementation, the bottommost section of the outer vertical pole is connected to the plane of the concrete cushion through an outer vertical pole gasket. Provide stable supporting force.

[0013] In a specific feasible implementation, the top of each section of the outer vertical pole is pressed against the bottom of the waist beam through the screw jack connected by threads. Adopt the screw adjustment method to realize the internal support on the foundation pit support retaining wall and improve compatibility.

[0014] In a specific feasible implementation, an outer vertical pole gasket is assembled on the upper surface of each waist beam. Provide stable supporting force.

[0015] In a specific feasible implementation, an external scaffolding wall connecting member is pre-embedded on each waist beam, and the external scaffolding wall connecting member is detachably and fixedly connected to the cross bar connecting assembly. Abandon the disadvantages of pre-embedding wall connecting members on the outer wall of the basement structure in the past and improve the waterproof quality of the outer wall.

[0016] In a specific feasible implementation, the bottommost end of the inner vertical pole is connected to the foundation of the basement structure through an inner vertical pole gasket. Provide stable supporting force.

[0017] In a specific feasible implementation, the cross bar connecting assembly includes: multiple first pipe fittings distributed horizontally along the transverse direction of the external scaffolding body, and multiple second pipe fittings distributed horizontally along the longitudinal direction of the external scaffolding body;

[0018] The multiple first pipe fittings and the multiple second pipe fittings are all distributed at intervals along the height direction of the scaffolding body. They are connected into an integral structure by fasteners to provide stable and reliable safety.

[0019] In a specific feasible implementation, the multiple first pipe fittings are horizontally connected between the outer vertical poles and the inner vertical poles in the same row;

[0020] The multiple second pipe fittings are horizontally connected between two adjacent outer vertical poles and / or between two adjacent inner vertical poles. Connect the multiple first pipe fittings with the external scaffolding wall connecting member to improve the overall stability, reserve a large construction space, ensure the convenience of construction and guarantee good construction quality. Brief Description of the Drawings

[0021] Figure 1 This is a schematic structural diagram of an external scaffolding for a basement in a narrow space provided by an embodiment of the present application.

[0022] Reference Numerals in the Drawings:

[0023] Basement Structure - 1, Foundation Pit Support Retaining Wall - 2, Girder - 3, Outer Vertical Rod - 4, Jack - 5, Scaffolding Tie Member - 6, Concrete Cushion - 7, Drainage Structure - 8, Outer Vertical Rod Shims - 9, Inner Vertical Rod - 10, Inner Vertical Rod Shims - 11, First Pipe Fitting - 12, Second Pipe Fitting - 13. Detailed Description of the Embodiment

[0024] To make the objectives, technical solutions, and advantages of the present disclosure clearer and more understandable, the following further elaborates on the present disclosure in detail with reference to specific embodiments and the accompanying drawings.

[0025] It should be noted that unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of this specification should have the ordinary meaning understood by those with ordinary skills in the field to which the present disclosure pertains. The "first", "second", and similar terms used in one or more embodiments of this specification do not denote any order, quantity, or importance, but are merely used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or items appearing before this term cover the elements or items listed after this term and their equivalents, without excluding other elements or items. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0026] To facilitate the understanding of the external scaffolding for the basement in a narrow space provided by the embodiments of the present application, first, its application scenario will be described. With the increasingly tight urban development land, especially for the utilization of underground space in the city center area, the basement foundation pits basically adopt the pile-anchor support structure, and it is common that the distance between the external wall of the basement and the support structure is relatively close, resulting in a narrow space during the construction of the external wall of the basement structure, and the double-row scaffolding cannot be erected normally. During the construction operation of the external wall of the basement structure, the installation and positioning of the external scaffolding are unstable. Usually, connecting wall members are pre-embedded in the external shear wall of the basement structure to connect the external scaffolding, which poses a severe test to the construction safety and the waterproof construction quality in the later stage. In the narrow construction space, when a large number of pipe fittings are installed as the external scaffolding and fixed, the remaining construction area is small and the construction coverage is not comprehensive, thus causing the disadvantages of inconvenient construction and poor stability of the external scaffolding, indirectly affecting the construction quality. In view of this, the present application provides an external scaffolding for the basement in a narrow space, which integrates the external scaffolding body with the foundation pit support structure, ensures the safe use of the external scaffolding body, does not affect the waterproof construction of the external wall of the basement structure, and guarantees the waterproof quality of the external wall.

[0027] Reference Figure 1 , the external scaffolding for the basement in a narrow space provided by the embodiments of the present application includes: an external scaffolding body; the external scaffolding body in the present application adopts a double-row frame body with good stability, and the external scaffolding body forms an integral with the foundation pit support structure to ensure better connection stability. Specifically, after the construction of the basement floor structure is completed, the floor is backfilled and a concrete cushion 7 for supporting the external scaffolding body is poured, and a drainage ditch structure 8 is provided on the concrete cushion 7. The drainage facilities are well done without affecting the normal construction. Since the vertical external wall of the basement structure 1 is relatively close to the foundation pit support retaining wall 2, the space is narrow. After the normal double-row scaffolding is erected, it occupies more space and the reserved construction space is insufficient. At the same time, in the previous erection process, connecting wall members were mostly pre-embedded in the external wall of the basement structure 1, and the pre-embedded connecting wall members have the risk of water seepage, which puts forward higher requirements for the waterproof construction in the later stage and cannot guarantee the construction quality of the waterproof operation.

[0028] Therefore, in the present application, the double-row external scaffolding body is installed by utilizing the space of the waist beam 3 of the foundation pit support retaining wall 2. Specifically, the first side of the external scaffolding body is connected to the waist beam 3 of the foundation pit support retaining wall 2, and the second side of the external scaffolding body is close to the basement structure 1; the external scaffolding body includes: segmented outer vertical poles 4 and inner vertical poles 10 arranged parallel to the basement structure 1. The inner vertical pole 10 is a through-section rod body, and the inner vertical pole 10 is parallel to the vertical external wall of the basement structure 1. The bottom end of the inner vertical pole 10 is connected to the foundation of the basement structure 1 through an inner vertical pole gasket 11. Stable supporting force is provided. The construction process is simple, and the through-section inner vertical pole 10 has reliable firmness performance.

[0029] Continue to refer to Figure 1, any section of the outer vertical rod 4 is connected to the waist beam 3 by a height-adjustable jack 5 in a pressing manner; in this application, an internal bracing method is adopted to connect between the concrete cushion 7 and the waist beam 3 or between any two adjacent upper and lower waist beams 3. Specifically, the bottom section of the outer vertical rod 4 is connected to the plane of the concrete cushion 7 through an outer vertical rod gasket 9. The outer vertical rod 4 is supported by the provided outer vertical rod gasket 9 to provide a stable supporting force.

[0030] The top of each section of the outer vertical rod 4 is pressed against the bottom of the waist beam 3 by a jack 5 connected by threads. By adopting a threaded adjustment method, the internal bracing is realized on the foundation pit support retaining wall 2, improving compatibility. And, an outer vertical rod gasket 9 is assembled on the upper surface of each waist beam 3. To provide a stable supporting force. It can be seen from the above structure that the jack 5 is connected to the outer vertical rod 4 by threads. During the adjustment process, the jack 5 continuously rises until a relatively stable supporting force is provided to the bottom of the waist beam 3. It should be understood that for different spacings between the upper and lower waist beams 3, the corresponding outer vertical rods 4 are prepared to match, ensuring that the jack 5 connected by threads on the outer vertical rod 4 has high internal bracing stability. At the same time, an outer vertical rod gasket 9 is provided on the upper surface of each waist beam 3, and the outer vertical rod gasket 9 is made of a wooden block to increase the stability of the support.

[0031] At the same time, in order to avoid the problem that in the past, connecting wall members were embedded in the outer wall of the basement structure 1, the embedded connecting wall members had the risk of water seepage, which put forward high requirements for the later waterproof construction and could not guarantee the construction quality of the waterproof operation. In this application, an external scaffolding connecting wall member 6 is embedded in each waist beam 3, and the external scaffolding connecting wall member 6 is detachably and fixedly connected to the cross-bar connecting assembly and the outer vertical rod 4. Thus, the stability is increased, the future external wall waterproof construction is not affected, and the overall safety of the external scaffolding body and the quality of the external wall waterproof can be guaranteed.

[0032] In addition, the cross-bar connecting assembly includes: a plurality of first pipe fittings 12 distributed horizontally along the transverse direction of the external scaffolding body, and a plurality of second pipe fittings 13 distributed longitudinally along the external scaffolding body; the plurality of first pipe fittings 12 and the plurality of second pipe fittings 13 are both spaced apart along the height direction of the scaffolding body. They are connected into an integral structure by fasteners to provide stable and reliable safety.

[0033] The plurality of first pipe fittings 12 are horizontally connected between the outer vertical rod 4 and the inner vertical rod 10 in the same row; the plurality of second pipe fittings 13 are horizontally connected between two adjacent outer vertical rods 4 and / or between two adjacent inner vertical rods 10. The plurality of first pipe fittings 12 are connected to the external scaffolding connecting wall member 6 to improve the overall stability, and a relatively large construction space is reserved to ensure the convenience of construction and good construction quality. The plurality of first pipe fittings 12 and the plurality of second pipe fittings 13 are connected to the outer vertical rod 4 and the inner vertical rod 10 in a criss-cross manner to construct a double-row external scaffolding body, with reliable overall firmness performance and a relatively large construction operation space reserved.

[0034] In this application, the segmented outer vertical pole 4 is connected to the foundation pit support retaining wall 2 to provide compatibility for narrow spaces. The inner vertical pole 10 is parallel to the outer wall of the basement structure 1, reserving sufficient construction space. While ensuring the overall stability of the external scaffolding, the construction scope is wider, the construction process is accelerated, and the construction quality is improved.

[0035] Those of ordinary skill in the art should understand that the discussion of any embodiment above is only exemplary and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples; under the concept of the present disclosure, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of one or more embodiments of the present specification as above, which are not provided in detail for the sake of brevity.

[0036] In addition, for simplicity of explanation and discussion, and in order not to make one or more embodiments of the present specification difficult to understand, the well-known power / ground connections of other components may or may not be shown in the provided drawings. In addition, the device may be shown in block diagram form to avoid making one or more embodiments of the present specification difficult to understand, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform on which one or more embodiments of the present specification are to be implemented (i.e., these details should be fully within the understanding of those skilled in the art). In the case where specific details are set forth to describe the exemplary embodiments of the present disclosure, it will be apparent to those skilled in the art that one or more embodiments of the present specification can be implemented without these specific details or with variations of these specific details. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0037] One or more embodiments of the present specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of the present specification shall be included within the protection scope of the present disclosure.

Claims

1. An external scaffolding for a narrow basement, comprising an external scaffolding body, a first side of the external scaffolding body being connected to a waist beam of a foundation pit support wall, and a second side of the external scaffolding body being close to a basement structure; characterized in that: The external scaffolding body includes: segmented outer side uprights and inner side uprights arranged parallel to the basement structure; wherein, Any section of the outer upright pole is connected to the waist beam through a height-adjustable top support; A crossbar connecting assembly is crisscrossedly connected between the inner side upright pole and the multiple sections of the outer side upright poles.

2. The narrow space basement external scaffolding according to claim 1 is characterized in that: The inner vertical pole is a through-section pole body, and the inner vertical pole is parallel to the vertical outer wall of the basement structure.

3. The narrow space basement external scaffolding according to claim 1 is characterized in that: A concrete cushion layer is poured between the basement structure and the bottom of the foundation pit support wall, and a drainage ditch structure is arranged on the concrete cushion layer.

4. The narrow space basement external scaffolding according to claim 3 is characterized in that: The outer side pole at the bottom section is connected to the plane of the concrete cushion layer through an outer side pole gasket.

5. The narrow space basement external scaffolding according to claim 4 is characterized in that: The top of each section of the outer upright pole is pressed against the bottom of the waist beam through the top support connected by threads.

6. The narrow space basement external scaffolding according to claim 5, characterized in that: The upper surface of each waist beam is equipped with the outer pole gasket.

7. The narrow space basement external scaffolding according to claim 6, characterized in that: An external scaffolding wall connecting piece is pre-embedded on each waist beam, and the external scaffolding wall connecting piece is detachably fixedly connected to the crossbar connecting assembly.

8. The narrow space basement external scaffolding according to claim 2, characterized in that: The bottom end of the inner upright pole is connected to the foundation of the basement structure through an inner upright pole gasket.

9. The narrow space basement external scaffolding according to claim 7, characterized in that: The crossbar connection assembly comprises: a plurality of first pipes distributed along the transverse direction of the outer scaffold body, and a plurality of second pipes distributed along the longitudinal direction of the outer scaffold body; The plurality of first pipes and the plurality of second pipes are distributed at intervals along the height direction of the scaffold body.

10. The narrow space basement external scaffolding according to claim 9, characterized in that: The plurality of first pipes are horizontally connected between the outer upright poles and the inner upright poles in the same row; The plurality of second pipes are horizontally connected between two adjacent outer upright poles and / or between two adjacent inner upright poles.

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