Temporary plugging structure for vehicle base upper cover hole and construction method of temporary plugging structure

Abstract

The invention discloses a temporary plugging structure for a vehicle base upper cover hole and a construction method thereof, and belongs to the technical field of constructional engineering. The temporary plugging structure for the vehicle base upper cover hole comprises a concrete permanent flange; constructional column joint bars are arranged at a plurality of preset positions of the concrete permanent turnup, and a plurality of constructional columns are formed based on pouring of the constructional column joint bars; a masonry wall is arranged at the upper part of the concrete permanent turnup and between two adjacent constructional columns, and the masonry wall and the constructional columns are connected into a whole at the top through a ring beam; an embedded part is arranged in the ring beam, a plurality of steel beams are fixed to the top of the embedded part, and roof profiled steel sheets are fixed to the steel beams. The temporary plugging task of the vehicle base upper cover hole can be completed economically, reasonably, safely and reliably.

Description

Technical Field

[0001] The present invention relates to a temporary plugging structure for the upper cover openings of a vehicle base and a construction method thereof, belonging to the technical field of construction engineering. Background Art

[0002] In China, the development of the upper cover of vehicle bases has gradually become a trend. In the upper cover project of vehicle bases, the area under the cover is mainly used for daily work such as vehicle parking, cleaning, maintenance, and repair, while the area above the cover is mainly for property development functions such as residential, commercial, and office. Since the land nature and development entities above and below the cover may be different, generally the secondary development above the cover is later than the implementation time of the lower vehicle base platform. Therefore, the development time above the cover will most likely lag behind the vehicle base cover plate, and there is also a large uncertainty in the lag time.

[0003] Although the upper cover development is generally implemented in two stages, the upper and lower covers need to be integrally designed, and both stages need to independently meet the building and fire protection design requirements. Therefore, openings such as elevator shafts, stairways, and air shafts for later use are left on the cover plate surface of the upper cover platform. In the case where the later development has not been implemented, these openings will be exposed on the roof for a long time. Since the openings are generally above the vehicle base storage, if reasonable measures are not taken, rainwater may enter the vehicle base storage through the openings during the later use of the vehicle base.

[0004] Currently, many projects use a concrete structure (concrete flanging + concrete slab) for plugging. Although this method can effectively solve the above problems, the cost is relatively high. If the secondary development time is close to the platform implementation time and the concrete structure needs to be demolished in a short time, it will cause great waste. Moreover, the vibration during the later chiseling of the concrete flanging will have a certain impact on the cover plate structure. Summary of the Invention

[0005] In view of the above deficiencies in the prior art, the present invention provides a temporary plugging structure for the upper cover openings of a vehicle base and a construction method thereof, which can economically, reasonably, safely and reliably complete the temporary plugging task of the upper cover openings of the vehicle base, and is convenient for later demolition and formal project construction.

[0006] The first aspect of the present invention relates to a temporary plugging structure for the upper cover openings of a vehicle base, including a concrete permanent flanging;

[0007] The concrete permanent flanging is provided with construction column reinforcing bars at several preset positions, and several construction columns are formed by pouring based on the construction column reinforcing bars;

[0008] A masonry wall is provided between the upper part of the concrete permanent flanging and adjacent two construction columns, and the masonry wall and the construction columns are integrally connected by a ring beam at the top;

[0009] The ring beam is provided with embedded parts, and several steel beams are fixed on the top of the embedded parts, and profiled steel sheets for roofing are fixed on the steel beams; corresponding to the steel beams, struts and diagonal bracing are provided.

[0010] For some specific implementation schemes, the struts are fixedly connected to two adjacent steel beams, and both ends of the diagonal bracing are respectively fixedly connected to two adjacent steel beams.

[0011] The openings on the upper cover of the vehicle depot are generally rectangular openings, and construction columns are arranged at least at the four corners of the openings; the distance between two adjacent construction columns on the same side of the permanent concrete curb is not greater than 3 meters. When the distance between two adjacent corners of the permanent concrete curb is greater than 3 meters, additional construction columns are added.

[0012] The second aspect of the present invention relates to a construction method for a temporary plugging structure of an opening on the upper cover of a vehicle depot, including the following steps:

[0013] S1, Pour concrete around the opening of the upper cover platform according to the height of the permanent curb to obtain a permanent concrete curb; reserve the reinforcing bars for the construction columns at the preset positions before pouring.

[0014] S2, After the concrete strength reaches the design requirements, build a masonry wall along the height direction on the permanent concrete curb and pour the construction columns.

[0015] S3, Construct the steel bars of the ring beam at the top of the construction columns and the masonry wall and set the embedded parts, and pour concrete to obtain the ring beam, so that the ring beam is integrated with the construction columns.

[0016] S4, Connect the embedded parts to the steel beams, reinforce the steel beams through struts and diagonal bracing, and then fix profiled steel sheets for roofing on the steel beams to serve as a temporary steel roof.

[0017] For some specific implementation schemes, the struts are fixedly connected to two adjacent steel beams, and both ends of the diagonal bracing are respectively fixedly connected to two adjacent steel beams.

[0018] Compared with the prior art, the present invention has the following technical effects:

[0019] 1) A curb combining concrete and masonry wall is set around the opening. On the premise of minimizing the comprehensive construction cost, the need for water blocking at the opening is met and it is convenient for later demolition; the added masonry wall and ring beam structure reduce the height of the concrete curb, keeping the height of the concrete curb at the height of the permanent curb, avoiding the need to chisel off the excess curb, and avoiding the adverse impact of vibration on the cover structure during the chiseling process;

[0020] 2) The reliable connection between the masonry structure and the permanent concrete curb is ensured through the construction columns;

[0021] 3) A lightweight steel structure composed of steel beams and profiled steel sheets for roofing is set up, and temporary plugging covers are used to replace the concrete floor slabs, significantly reducing the roofing load and cost and facilitating later demolition and formal project construction.

[0022] 4) The safety of the temporary plugging cover of the lightweight steel structure under its own weight, wind load, and snow load is ensured by compression bars and diagonal braces. Description of the Drawings

[0023] Figure 1 It is an elevation view of Embodiment 1;

[0024] Figure 2 It is a schematic diagram of the inserted bars of the structural columns in Embodiment 1;

[0025] Figure 3 It is a schematic diagram of the pre-embedding of the embedded parts in Embodiment 1;

[0026] Figure 4 It is a detailed drawing of the temporary steel roof in Embodiment 1;

[0027] In the figure: 100, permanent concrete turned-up edge; 200, structural column; 201, inserted bars of the structural column; 300, masonry wall; 400, ring beam; 500, embedded part; 600, steel beam; 700, compression bar; 800, diagonal brace; 900, profiled steel sheet for roofing. Detailed Embodiment

[0028] The present invention will be described in detail below in conjunction with the drawings and specific embodiments.

[0029] Embodiment 1

[0030] As Figure 1 and Figure 2 shown, this embodiment includes a permanent concrete turned-up edge 100.

[0031] The permanent concrete turned-up edge 100 is provided with inserted bars 201 of the structural column at several preset positions, and several structural columns 200 are formed by pouring based on the inserted bars 201 of the structural column. Preferably, taking an upper cover opening with an outer diameter of 9m × 6m as an example for illustration (the same below), three structural columns are arranged on each side in the width direction. Two of the structural columns are arranged at the corners of the upper cover opening, and the other structural column is arranged between the two structural columns on the same side. The three structural columns are arranged at equal intervals.

[0032] There is a masonry wall 300 between the upper part of the permanent concrete turned-up edge and adjacent two structural columns. The masonry wall 300 and the structural column 200 are integrally connected by a ring beam 400 at the top. The width of the ring beam is the same as the thickness of the masonry wall. Preferably, the height of the masonry wall plus the permanent concrete turned-up edge is designed to be 2m, and among them, the height of the permanent concrete turned-up edge is not less than 0.5 meters.

[0033] AsFigure 1 , Figure 3 and Figure 4 As shown in Figure 1 , Figure 3 and Figure 4 , embedded parts 500 are provided in the ring beam 400. A number of steel beams 600 are fixed to the top of the embedded parts 500, and profiled steel sheets 900 for roofing are fixed to the steel beams. Preferably, six T-shaped steel embedded parts are arranged on each side in the width direction of the opening. The steel embedded parts are formed by welding a top steel plate and a number of J-shaped steel feet at the bottom. The J-shaped steel feet are cast in the ring beam, and the top steel plate is exposed. Steel beams are welded to the two pairs of aligned embedded parts in the width direction, and the steel beams are arranged along the length direction of the opening. Therefore, six steel beams are arranged. As the main load-bearing members of the roof, the height of the steel beams is designed to be 1 / 25 - 1 / 30 of the span, and the spacing is not greater than 1.5 meters.

[0034] Preferably, corresponding to the steel beam 600, a strut 700 and a diagonal bracing 800 are also provided; the strut is fixedly connected to two adjacent steel beams, and the spacing is not greater than 3 meters. The two ends of the diagonal bracing are respectively fixedly connected to two adjacent steel beams.

[0035] The following steps are adopted for the construction of the above temporary plugging structure:

[0036] S1, Pour concrete around the opening of the upper cover platform according to the permanent flange height to obtain a concrete permanent flange; reserve construction column reinforcement bars at the preset position before pouring;

[0037] S2, After the concrete strength reaches the design requirement, build a masonry wall along the height direction on the concrete permanent flange, and pour the construction column;

[0038] S3, Construct the ring beam steel bars and set embedded parts at the top of the construction column and the masonry wall, and pour concrete to obtain the ring beam, so that the ring beam is integrated with the construction column;

[0039] S4, Connect the embedded parts with the steel beams, and reinforce and connect the steel beams through the strut and the diagonal bracing; then fix the profiled steel sheets for roofing on the steel beams to serve as a temporary steel roof.

[0040] It should be emphasized that: The above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A temporary blocking structure for a vehicle base cover opening, characterized in that: Includes permanent concrete flanges; The concrete permanent flange is provided with structural column dowels at several preset positions, and several structural columns are formed by pouring the structural column dowels; A masonry wall is provided on the upper part of the permanent concrete flange and between two adjacent structural columns, and the masonry wall and the structural column are connected as a whole through a ring beam at the top; The ring beam is provided with embedded parts, a number of steel beams are fixed on the top of the embedded parts, and the roof corrugated steel plates are fixed on the steel beams; Corresponding to the steel beam, compression rods and diagonal braces are also provided.

2. The temporary blocking structure of the opening of the vehicle base cover according to claim 1 is characterized in that: The compression rod is fixedly connected to two adjacent steel beams, and the two ends of the inclined brace are respectively fixedly connected to the two adjacent steel beams.

3. The temporary blocking structure of the vehicle base cover opening according to claim 1, characterized in that: The opening of the vehicle base upper cover is a rectangular opening, and the structural columns are at least arranged at the four corners of the opening.

4. The temporary blocking structure of the vehicle base cover opening according to claim 3, characterized in that: The distance between two adjacent structural columns on the same side of the permanent concrete flange is no more than 3 meters.

5. A construction method for a temporary blocking structure of a vehicle base cover opening, characterized in that: The following steps are involved: S1, pour concrete around the opening of the upper cover platform according to the permanent flange height to obtain a permanent concrete flange; reserve structural column dowels at a preset position before pouring; S2, after the concrete strength reaches the design requirements, build masonry walls on the permanent concrete flanges along the height direction and cast structural columns; S3, constructing ring beam reinforcement and setting embedded parts on the top of the structural column and the masonry wall, pouring concrete to obtain the ring beam, so that the ring beam and the structural column are connected as a whole; S4, connect the embedded parts with the steel beam, reinforce the steel beam with compression rods and diagonal braces, and then fix the roof corrugated steel sheet on the steel beam.

6. The construction method of the temporary blocking structure of the vehicle base cover opening according to claim 5 is characterized in that: The compression rod is fixedly connected to two adjacent steel beams, and the two ends of the inclined brace are respectively fixedly connected to the two adjacent steel beams.

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