JP4787010B2 - Mechanical parking lot on the basement floor - Google Patents

Description

  The present invention belongs to the technical field of a mechanical parking lot constructed in a three-dimensional structure in a basement having a high (deep) floor height in the basement of the building.

  When building a mechanical parking lot in the basement of a building, it is necessary to prepare a basement with a high floor and have a three-dimensional structure in order to secure a necessary and sufficient parking space (number of parking spaces). In that case, as illustrated in FIG. 7, in order to resist and support horizontal forces such as large earth pressure and water pressure acting on the underground outer wall 3, during excavation work, a large-scale steel It is necessary to install one or two or more piercing beams 20, and thus a large-scale support scaffold is required for assembling the steel piercing beam 20. Then, after completing the so-called underground structures such as the underground outer wall 3 and the pressure panel 6, the steel beam 20 and the supporting scaffold are dismantled and removed, and then the mechanical parking lot 5 is installed. Therefore, the work procedure is increased, and the installation work of the mechanical parking lot 5 is a dangerous high place work. In addition, the deep underground outer wall 3 is known to have a problem that the wall thickness needs to be increased to, for example, 1 m or more so as to withstand the horizontal force acting on the deep underground outer wall 3. Furthermore, there are known disadvantages that the number of joints of the underground outer wall 3 is increased by the number of steps including the steel beams 20 and the quality of the underground frame is lowered.

  Conventionally, a method for constructing the framework constituting the vehicle storage part of the mechanical parking lot in the underground building described above as a mountain retaining member (cut beam, etc.) at the time of excavation and constructing the underground frame and the mechanical parking lot in parallel Are also disclosed in Patent Documents 1 and 2 below.

JP-A-6-117130 (Patent No. 3016215) Japanese Patent Laid-Open No. 9-291719

The following problems are recognized about the mechanical parking lot disclosed in Patent Documents 1 and 2 above.
(A) Although it will be constructed by the same construction method as the so-called reverse driving method, the beam used for excavation is generally preloaded to absorb and remove looseness and familiarity when installed. is there. However, when a preload is applied to a pillar or beam of a mechanical parking lot, there is a disadvantage that the mechanical parking lot is deformed.
(B) In order to use a beam of a mechanical parking lot as a cut beam, a sufficiently large rigidity (cross-sectional area) is required as it is, and the beam material normally used in a mechanical parking lot should be used as it is. Is difficult. Therefore, it is possible to cope by increasing the beam material of the mechanical parking lot, but if this is done, the floor height will increase by the size of the cross-sectional area of the beam material, and a large floor height will be required in the basement. Will do.

  The object of the present invention is to construct a basement of a basement having a high (deep) floor height required for installing a mechanical parking lot in a three-dimensional structure in a rational and economical structure, and to act on soil acting on the underground outer wall. A corridor board with a structure that resists and supports horizontal forces such as pressure and water pressure is installed in a permanent structure as a reinforced concrete cut beam (hereinafter sometimes abbreviated as RC cut beam) necessary for the implementation of the reverse driving method. Therefore, the construction of the underground outer wall is thinned, and the construction period is shortened by preceding the installation of the mechanical parking lot above the walkway board. It is to provide a mechanical parking lot on the basement floor of a building that can be used as a scaffolding.

As a means for solving the problems of the prior art described above, the mechanical parking lot of the building basement floor according to the invention described in claim 1 is a mechanical parking lot constructed in a building underground portion,
A mountain retaining wall 10 is constructed on the outer periphery of the basement of the building 1 and the ground is excavated by the procedure of the reverse driving method to proceed with the construction of the underground outer wall 3, the basement floor 12 and the pillar 7 of the building 1 . While excavating the ground and proceeding with the construction of the underground outer wall 3, it resists and supports the horizontal force F at a depth position that should resist and support the horizontal force F acting on the underground outer wall 3 such as earth pressure and water pressure. At least one layer of reinforced concrete walkway board 4 is constructed,
Further, the excavation of the ground is advanced to the bottom of the final excavation to complete the underground outer wall 3 and the column 7 and the pressure platen 6 or the foundation beam , and the mechanical parking lot 5 is arranged in the upper and lower spaces of the corridor board 4 in the vertical direction. Is installed in a three-dimensional structure,
The column 5a of the mechanical parking lot 5 has the columns 5a relative to each other sandwiching the upper and lower surfaces of the corridor plate 4 so that the vertical load transmission path is continuously continued in the vertical direction. The structure is such that it is supported on the pressure platen 6 or the foundation beam and is transmitted to the pressure platen 6 or the foundation beam of the foundation part with a structure that does not load the weight and loading load of the mechanical parking lot 5 to the corridor board 4. It is characterized by.

The mechanical parking lot of the building basement floor according to the invention described in claim 2 is a mechanical parking lot constructed in the underground portion of the building,
A mountain retaining wall 10 is constructed on the outer periphery of the basement of the building 1 and the ground is excavated by the procedure of the reverse driving method to proceed with the construction of the underground outer wall 3, the basement floor 12 and the pillar 7 of the building 1. While excavating the ground and proceeding with the construction of the underground outer wall 3, it resists and supports the horizontal force F at a depth position that should resist and support the horizontal force F acting on the underground outer wall 3 such as earth pressure and water pressure. At least one layer of reinforced concrete walkway board 4 is constructed,
Further, the excavation of the ground is advanced to the bottom of the final excavation to complete the underground outer wall 3 and the column 7 and the pressure plate 6 or the foundation beam, and the mechanical parking lot 5 is arranged in the upper and lower spaces of the corridor board 4 in the vertical direction. Is installed in a three-dimensional structure,
The column 5a of the mechanical parking lot 5 is provided with a hole 8 penetrating the corridor board 4 in the vertical direction at the position of the column 5a of the mechanical parking lot 5, and is a common column for the upper and lower mechanical parking lots 5, 5. 5a is penetrated into the hole 8, and the support column 5a is supported on the pressure platen 6 or the foundation beam so that the weight of the mechanical parking lot 5 and the loading load are not borne on the corridor plate 4. It is characterized by being configured to transmit to the pressure platen 6 or the foundation beam.
The invention described in claim 3 is the mechanical parking lot on the basement floor of the building described in claim 1 or 2 ,
The corridor board 4 is placed on the entire surface of the horizontal plane surrounded by the underground outer wall 3 below the basement floor 12 of the building 1 or on a part that needs to resist and support a horizontal force F such as earth pressure or water pressure to be borne. It is partly installed as a reinforced concrete beam.

The invention described in claim 4 is the mechanical parking lot on the basement floor according to any one of claims 1 to 3 ,
Depending on the depth of the basement of the building 1, the corridor board 4 is provided at each depth position where it is necessary to resist and support horizontal forces F such as earth pressure and water pressure acting on the underground outer wall 3 in the same depth direction. The required number of layers of two layers or three or more layers is constructed, and the mechanical parking lot 5 is installed in a three-dimensional structure in the upper and lower spaces of the corridor board 4 of each layer in a common arrangement above and below.

The mechanical parking lot in the basement of the building according to the present invention has the same horizontal force F for each depth position that needs to resist and support the horizontal force F such as earth pressure and water pressure acting on the underground outer wall 3 when excavating the ground. Since the corridor board 4 having a structure that resists and supports the steel plate is installed in a permanent structure, for example, as a reinforced concrete cut beam (so-called permanent installation), the wall thickness of the underground outer wall 3 can be reduced to, for example, about 0.5 m. . The construction cost of the underground outer wall 3 can be reduced by that amount, and the effective area of the basement can be expanded.
Moreover, when the gallery board 4 is completed, the assembly and installation work of the mechanical parking lot 5 to be installed in the space above the gallery board 4 can be performed in parallel with the excavation work of the lower ground. Can shorten the work period. In addition, since the work such as assembly, installation, and adjustment of the mechanical parking lot 5 can be performed using the walkway board 4 as a scaffold, dangerous work at high places can be avoided.
The corridor board 4 has a structure that does not bear the weight and load of the mechanical parking lot 5, and can be installed as thinly and economically as possible. The corridor board 4 can be used as a work floor for assembling and adjusting the mechanical parking lot 5, and there is no need to construct a scaffold for temporary installation and inspection, so that temporary materials can be saved.

A mechanical parking lot built in the basement of the building.
A mountain retaining wall 10 is constructed on the outer periphery of the basement of the building 1 and the ground is excavated by the procedure of the reverse driving method to proceed with the construction of the underground outer wall 3, the basement floor 12 and the pillar 7 of the building 1. While excavating the ground and proceeding with the construction of the underground outer wall 3, it resists and supports the horizontal force F at a depth position that should resist and support the horizontal force F acting on the underground outer wall 3 such as earth pressure and water pressure. The corridor board 4 made of reinforced concrete is constructed with at least one layer and a permanent structure.
Further, the excavation of the ground is advanced to the bottom of the final excavation to complete the underground outer wall 3 and the column 7 and the pressure platen 6 or the foundation beam , and the mechanical parking lot 5 is arranged in the upper and lower spaces of the corridor board 4 in the vertical direction. Install in a three-dimensional structure.
And the support | pillar 5a of the said mechanical parking lot 5 makes the support | pillars 5a mutually bend | inclined on both sides of the upper and lower surfaces of the walkway board 4, and the transmission path of a vertical load is continued in series up and down, and the lower support | pillar 5a Is supported on the pressure platen 6 or the foundation beam so that the weight of the mechanical parking garage 5 and the loading load of the vehicle 21 etc. are not borne on the corridor board 5, and is transmitted to the pressure platen 6 or the foundation beam of the foundation part. The configuration is as follows.
The corridor board 4 is placed on the entire surface of the horizontal plane surrounded by the underground outer wall 3 below the basement floor 12 of the building 1 or on a part that needs to resist and support a horizontal force F such as earth pressure or water pressure to be borne. Partially installed as a reinforced concrete beam.
Depending on the depth of the basement of the building 1, the corridor board 4 is provided at each depth position where it is necessary to resist and support horizontal forces F such as earth pressure and water pressure acting on the underground outer wall 3 in the same depth direction. The required number of two layers or three or more layers is constructed, and the mechanical parking lot 5 is installed in a three-dimensional structure in the upper and lower spaces in the upper and lower spaces of the corridor board 4 of each layer.

Hereinafter, the present invention will be described based on illustrated embodiments.
FIG. 1 is a conceptual diagram of a vertical section of a mechanical parking lot on a basement floor according to the present invention, which is a mechanical parking lot constructed in an underground portion of a building 1.
A walkway with a structure that resists and supports the horizontal force F at a depth position that resists and supports the horizontal force F such as earth pressure and water pressure acting on the underground outer wall 3 below the basement floor 12 of the building 1 In the case of FIG. 1, the plate 4 is constructed as a permanent permanent member by only one layer. That is, the said gallery board 4 is constructed | assembled and installed as a reinforced concrete cut beam as an example.
And the mechanical parking lot 5 is installed in the three-dimensional structure (laminated structure) by the arrangement | positioning which is common to the upper and lower sides in the space up and down of the said corridor board 4. FIG. The column 5a of the mechanical parking lot 5 transmits the weight of the mechanical parking lot 5 and a load of a vehicle or the like to the pressure platen 6 (or a foundation beam or the like) of the base portion with the following structure that does not cause the corridor board 4 to bear a load. It is supposed to be configured.
The code | symbol 7 in FIG. 1 shows the pillar of a basement.

   Incidentally, the configuration in which the weight of the mechanical parking lot 5 and the loading load of the vehicle or the like described above are transmitted to the pressure board 6 or the like of the base portion in a structure in which the column 5a does not burden the corridor board 4 is specifically shown in FIG. 3A, as shown in FIG. 3A, the pillars 5a and 5a of the mechanical parking lots 5 and 5 installed in a laminated structure with a common arrangement in the upper and lower sides are interleaved with the upper and lower surfaces of the corridor board 4 being sandwiched. A configuration in which the transmission path of the vertical load N is continuously arranged in the up-down direction by facing each other, or as shown in FIG. 3B, the corridor board 4 penetrates in the up-down direction at the position of the column 5a of the mechanical parking lot 5. The structure which implements by the structure which provided the hole 8 and penetrated the support | pillar 5a common to the upper and lower mechanical parking lots 5 and 5 in the said hole 8 is meant.

Next, an outline of a construction procedure for constructing the mechanical parking lot having the above configuration on the second basement floor of the building 1 will be described.
Specifically, as shown in FIG. 4, a mountain retaining wall 10 is first constructed on the outer periphery of the basement of the building 1, and a structural pillar is installed. Thereafter, the ground is excavated to a depth necessary for constructing the first floor 11 at the ground level (G · L) to construct the first floor 11.
Subsequently, the ground is excavated to a depth necessary for constructing the first basement floor 12, and the first basement floor 12, the underground outer wall 13 and the pillar 7 up to the same level are constructed.
Thereafter, excavation of the ground is carried out to a depth where it is necessary to support the underground outer wall 3 below the first floor 12 with a corridor plate 4 (so-called cut beam), and the corridor plate 4 is made permanent as a reinforced concrete cut beam, for example. Build in structure. Moreover, the underground outer wall 3 and the pillar 7 to the same level are constructed in parallel. That is, the construction of the reinforced concrete corridor board 4 can be easily constructed and constructed without using a support work or the like by using the excavation bottom surface of the ground as a substitute for the formwork, which is a well-known construction method.
When two layers of the corridor board 4 are constructed up and down as shown in FIG. 4, the above steps are repeated. In other words, the corridor board 4 has to be supported by resisting and supporting horizontal forces F such as earth pressure and water pressure acting on the underground outer wall 3 in the same depth direction according to the depth of the basement of the building. In addition, the required number of two layers or three or more layers is constructed.
Thereafter, the excavation of the ground is finally advanced to the final excavation bottom, and the pressure-resistant platen 6 (or the foundation beam or the like) serving as a foundation portion is constructed on the excavation bottom. In addition, the construction of the underground outer wall 3 and the pillar 7 up to the same level is completed.

  In addition, as shown in FIG. 5, the construction of the above-mentioned corridor board 4 is a case where it is installed in a single plate shape on the entire horizontal surface surrounded by the underground outer wall 3 of the building, and as shown in FIG. It may be installed partially in a portion that needs to resist and support the horizontal force F such as earth pressure and water pressure to be borne, that is, the other portion is left with an opening 15 penetrating in the vertical direction. . In any case, it is the same that the mechanical parking lots 5 are installed in a three-dimensional structure in the upper and lower spaces in the upper and lower spaces of the corridor board 4 of each layer. Reference numeral 22 in FIGS. 5 and 6 is an opening for a machine that transports the vehicle in the vertical direction.

  Although the present invention has been described based on the illustrated embodiment, of course, the technical idea of the present invention is not limited to the above embodiment. The present invention can be implemented in various ways including design changes and application modifications that are usually made by those skilled in the art without departing from the gist and technical idea of the present invention.

It is sectional drawing which showed notionally the mechanical parking lot which concerns on this invention. It is the elements on larger scale which showed the relationship between a mechanical parking lot and a walkway board. A is a partially enlarged view showing a structure in which a column of a mechanical parking lot is non-penetrating with respect to a walkway board, and B is a penetrating structure. It is sectional drawing which showed notionally the construction structure of the mechanical parking lot concerning this invention. It is a top view equivalent to the V arrow of FIG. It is a top view of the example of a different structure equivalent to V arrow view of FIG. It is sectional drawing which showed the conventional mechanical parking lot notionally.

Explanation of symbols

1 Building 12 Basement floor 3 Basement outer wall
F Horizontal force 4
5 Mechanical parking lot 5a Post 6 Pressure-resistant panel

Claims (4)

A mechanical parking lot built in the basement of the building,
Building a retaining wall around the basement of the building and excavating the ground using the reverse-turning method, proceeding with the construction of the building's underground outer wall, basement floor, and columns, and excavating the ground below the basement floor At the same time, at least one layer of reinforced concrete corridor board that resists and supports the horizontal force is constructed at a depth position that should resist and support the horizontal force such as earth pressure and water pressure acting on the outer wall of the underground. And
Further, the ground excavation is advanced to the bottom of the final excavation, and the underground outer wall, pillars, pressure platen or foundation beam are completed , and mechanical parking lots are installed in a three-dimensional structure in the upper and lower spaces of the corridor board in a common arrangement above and below. Has been
The columns of the mechanical parking lot have the columns supported relative to each other across the upper and lower surfaces of the corridor plate, and the vertical load transmission path is continuously continued in the vertical direction, and the lower column is the pressure platen or foundation beam The structure of the basement floor of the building is characterized in that it is configured to transmit the weight of the mechanical parking lot and the load to the corridor board to the footboard or the foundation beam in a structure that is supported on the floor. Mechanical parking lot. A mechanical parking lot built in the basement of the building,
Building a retaining wall around the basement of the building and excavating the ground using the reverse-turning method, proceeding with the construction of the building's underground outer wall, basement floor, and columns, and excavating the ground below the basement floor At the same time, at least one layer of reinforced concrete corridor board that resists and supports the horizontal force is constructed at a depth position that should resist and support the horizontal force such as earth pressure and water pressure acting on the outer wall of the underground. And
Further, the ground excavation is advanced to the bottom of the final excavation, and the underground outer wall, pillars, and pressure platen or foundation beam are completed. Has been
The post of the mechanical parking lot is provided with a hole penetrating the corridor board in the vertical direction at the position of the post of the mechanical parking lot, and the post common to the upper and lower mechanical parking lots is penetrated into the hole, The strut is supported on the pressure platen or foundation beam and is configured to transmit the weight and load of the mechanical parking lot to the corridor plate in a structure that does not burden the corridor plate. A mechanical parking lot on the basement floor of the building. The pedestrian board is partly reinforced concrete on the entire horizontal plane surrounded by the underground outer wall below the basement floor of the building or on the part that needs to resist and support the horizontal force such as earth pressure and water pressure to be borne. The mechanical parking lot of a building basement floor according to claim 1 or 2 , characterized in that the mechanical parking lot is installed as a built-up beam. Depending on the depth of the basement of the building, the corridor board has two layers or two layers at each depth position where it is necessary to resist and support horizontal forces such as earth pressure and water pressure acting on the underground outer wall in the same depth direction. three layers is built above the number required, characterized in that the mechanical parking and below the space corridor plate of each layer are installed in the three-dimensional structure in an arrangement common to the upper and lower, more of claims 1 to 3 one was building underground floor of the mechanical parking according to any.

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