JP2016130988A - Building construction plan proposal system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a cost burden as much as possible in extension or reconstruction of a building.SOLUTION: A building construction plan proposal system calculates a structure and the like of a one-story house 16 of which a room layout is designated, calculates a structure and the like of a two-story structured house having a same room layout in a first-floor part 30 as the designated layout, and calculates a structure and the like of a reinforced one-story house by substituting the structure and specifications of the first-floor part 30 of the two-story structured house 70 for the structure and specifications of the one-story house 16 with the same room layout. Further, the building construction plan proposal system calculates a content of construction and a remodeling work cost necessary for remodeling the reinforced one-story house into the two-story structured house 70. The building construction plan proposal system creates and outputs a comparison table for comparing a construction cost of the two-story structured house 70, a construction cost of the reinforced one-story house, and a remodeling work cost. The arithmetic results and the arithmetic expressions are stored in a storage device until a start period of the remodeling work.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a building construction plan proposal system that makes it easy to economically renovate a one-story building to a two-story building.

  In consideration of construction costs, for example, if there is a hope that a new one-story building will be built for the time being and that it will be expanded to two floors in the future, a technology for designing a one-story building in anticipation of future extensions will be introduced ( Patent Document 1). In addition, a technique for calculating, comparing, and presenting the structure and cost between the case of building a building that is expected to be extended and the case of other cases is introduced (Patent Document 2). Furthermore, a technique has been introduced in which a building maintenance history is recorded and design drawing data is stored for use in extension (Patent Document 3) (Patent Document 4).

JP 2000-192538 A JP 2002-157283 A JP 2002-24323 A JP 2004-70811 A

The known prior art has the following problems to be solved.
In the design of a one-story building that anticipates future expansion, it is necessary to reinforce the basic structure and wall structure compared to a normal one-story building. However, when the structure is strengthened, the construction cost increases. If the total cost, including extension work, is too high compared to the case of a two-story building from the beginning, this method cannot be recommended. In addition, a new design cost may be incurred when the expansion or renovation is started in the future. In addition, if material costs and labor costs are changing, it will be necessary to calculate again. On the part of the building contractor, proposals that eliminate these uncertainties as much as possible will lead to an increase in orders.
The present invention has been made paying attention to the above points, and an object of the present invention is to provide a building construction plan proposing system capable of reducing the cost burden at the time of extension and reconstruction as much as possible.

  The following configurations are means for solving the above-described problems.

<Configuration 1>
A first computing means for computing the structure, specifications and construction cost of a one-story building with a floor plan specified;
A second computing means for computing the structure, specifications, and construction cost of a multi-story building having a floor plan common to the above-mentioned designated floor plan;
Replace the structure and specifications of the first floor of the multi-storey building with the structure and specifications of a single-story single-story building, and calculate the structure, specifications and construction cost of a reinforced one-story building. A third computing means;
The 4th which computes the contents of construction and the cost of renovation necessary to renovate the reinforced one-storied building into a multi-story building where the structure and specifications are computed by the second computing means And a computing means of
The construction cost of a multi-storey building calculated by the second calculation means, the construction cost of a reinforced one-story building obtained by the calculation of the third calculation means, and the fourth calculation means A fifth calculation means for generating and outputting a comparison table comparing the renovation costs obtained by the calculation of
The calculation formula for obtaining the cost of renovation work by the fourth calculation means and the design data including the structure and specifications of the multi-story building calculated by the second calculation means until the start of the renovation work. A building construction plan proposal system characterized by comprising a storage device for storage.

<Configuration 2>
The multi-story building computed by the second computing means is either a total two-story structure, a partial two-story structure, or a shed-back structure, and the reinforced one-story building Is a building construction plan proposing system according to Configuration 1, characterized in that a staircase expansion section is provided on the first floor.

<Configuration 3>
3. The building construction plan proposal system according to Configuration 2, wherein the building is provided with a shed space having a ceiling height necessary for refurbishing the second floor without refurbishing the roof.

<Configuration 4>
4. The building construction plan proposal system according to Configuration 3, wherein the building is provided with a shed space including a place having a ceiling height of 2 meters or more.

<Configuration 5>
5. The building construction plan proposal system according to Configuration 3 or 4, wherein an opening used as a window after completion of construction is provided in a portion corresponding to the second floor on the outer wall after renovation of the building.

<Configuration 6>
6. The building construction plan proposal system according to Configuration 5, wherein the opening used as a window after completion is a balcony window or a sweep window.

<Configuration 7>
The building is provided with a power generation facility using natural energy or other private power generation facilities, and profits obtained by selling power by the time of renovation of the building are also shown in the comparison table. A construction plan proposal system for a building according to any one of the above.

<Configuration 8>
A building construction plan proposing program that causes a computer to function as each means described in Configuration 1.

<Configuration 9>
A computer-readable recording medium on which the construction plan proposal program according to Configuration 8 is recorded.

<Effect of Configuration 1>
Since the structure and specifications of the multi-story building are determined from the beginning, it is possible to accurately compare the one-story building that was planned for renovation with the one that is not scheduled for renovation and the estimated renovation cost. In addition, since the calculation formulas and design data for obtaining the renovation cost can be stored and used until the start of the renovation work, it is possible to minimize the design cost at the time of the renovation and to easily calculate the cost estimate at the time of the renovation.
<Effect of Configuration 2>
A building having a total two-story structure, a partial two-story structure, or a shed utilization structure can effectively use land. By setting up a staircase expansion section in advance, the expansion work on the second floor can be carried out smoothly.
<Effect of Configuration 3>
Buildings that have been provided with attic space in advance can be renovated into two stories without refurbishing the roof, thus reducing renovation costs.
<Effect of Configuration 4>
If the shed space includes a place with a ceiling height of 2 meters or more, the second floor can be expanded.
<Effect of Configuration 5>
If an opening used as a window on the second floor of the outer wall of the building to be renovated is provided after completion of construction, materials can be brought in from there during the renovation work, so that workers can enter and leave. Work can be carried out without hindering the lives of the elderly. The construction cost is low and the occupant does not have to leave the house, which makes the design very economical.
<Effect of Configuration 6>
Balcony windows and sweep-out windows have openings that allow people to enter and exit, making them ideal as a platform for carrying in materials.
<Effect of Configuration 7>
If various private power generation facilities are installed in addition to sunlight, the profits obtained from the sale of electricity by the time of renovation of the building can be compensated for the renovation costs.

(A) is a side view of a one-story building 16, (b) is a side view of a partially two-story building 70, and (c) is a cross-sectional view thereof. (A) is a floor plan of the reinforced one-story building, and (b) is a floor plan of the second floor part. It is a functional block diagram of the computer 10 which can design the building as mentioned above and can produce | generate the comparison figure of construction expense. It is explanatory drawing which illustrated the arithmetic processing function. (A) is explanatory drawing which shows an example of the comparison table 58, (b) is explanatory drawing of the comparison table which shows another effect of a hut back type building. It is a specific operation | movement flowchart of a 1st-3rd calculating means. It is an operation | movement flowchart of a 4th and 5th calculating means. (A) is a side view of the one-story building 16, (b) is a side view of the building 68 having a total two-story structure, and (c) is a cross-sectional view thereof. (A) is a side view of the building 72 having a hut back utilization structure, (b) is a side view of the building 68 after extension, and (c) is a cross-sectional view thereof. It is the longitudinal cross-sectional view of the building 72 of a shed utilization structure, (a) is before renovation, (b) is after renovation.

  Hereinafter, embodiments of the present invention will be described in detail for each example.

1A is a side view of a one-story building 16, FIG. 1B is a side view of a partially two-story building 70, and FIG. 1C is a cross-sectional view thereof. (A) of FIG. 2 is a floor plan of the first floor part of the reinforced one-story building, and (b) is a floor plan of the second floor part thereof.
In the present invention, the floor plan of the one-story building 16 is first designed according to the wishes of the owner. Subsequently, the floor 70 is provided with this floor plan, and a building 70 having a two-story structure in which the second floor part 32 is extended is designed. In the example of this figure, the partial two-story building is used. However, as will be described later, the procedure does not change even if the total two-story building is used.

  After designing the two-story building 70, a reinforced one-story building using the design data of the first-floor portion 30 is designed. The appearance is the same as that of the one-story building 16 in FIG. For the time being, when this reinforced one-story building is built and the number of families increases in the future, renovation work is performed so that it becomes a partially two-story building 70 in FIG. Propose such a plan to the client. At the same time, the renovation cost is calculated.

  The floor plan shown in FIG. 2A is for a reinforced one-story building. As shown in this figure, the reinforced one-storied building 42 is provided with a staircase expansion section 74 in advance so that the second-floor portion 32 can be added. This becomes the first floor portion 30 of the building 70 having a partial two-story structure as it is. That is, the reinforced one-story building 42 is designed including not only the reinforcement of the structural material of the first floor portion 30 but also the staircase portion considering the floor plan of the second floor portion 32.

FIG. 3 is a functional block diagram of the computer 10 that can design a building as described above and generate a construction cost comparison diagram. FIG. 4 is an explanatory diagram illustrating the arithmetic processing function.
The computer 10 shown in the figure is provided with an arithmetic processing unit 12 and a storage device 14. The five types of arithmetic means 26, 40, 52, 60, 66 provided in the arithmetic processing unit 12 are parts for giving certain functions to the computer 10 by computer programs. The storage device 14 stores the result of the arithmetic processing.

  The first calculation means 26 has a function of calculating the structure, specifications, and construction cost of the one-story building 16 for which the floor plan is specified. The obtained design data 18 is stored in the storage device 14. The second calculation means has a function of calculating the structure, specifications, and construction cost of a two-story (multi-story) building having the designated floor plan and the common floor plan in the first floor portion 30. The obtained design data 34 is stored in the storage device 14.

  The third computing means replaces the structure and specifications of the first floor portion 30 of the two-story building with the structure and specifications of the common floor-to-story building 16 and the structure of the reinforced one-story building 42. And has the function to calculate the specifications and construction costs. The obtained design data 44 is stored in the storage device 14. At this time, the structure and specifications of the one-story building 16 and the first-floor part 30 of the two-story building are substantially the same. However, since there are additions of staircases and some changes, the expression is common and the explanation proceeds. .

  The fourth calculation means renovates the reinforced one-storied building 42 to make a two-story building whose structure and specifications are calculated by the second calculation means 40 and the contents of the construction and the renovation. Has the function to calculate construction costs. The contents of the obtained construction, the renovation construction cost, and the arithmetic expression 64 are stored in the storage device 14.

  The fifth calculation means includes the construction cost of the multi-storey building calculated by the second calculation means 40 and the reinforced one-story building 42 obtained by the calculation of the third calculation means 52. It has a function of generating a comparison table 58 that compares the construction cost with the renovation cost 56 obtained by the calculation of the fourth calculation means 60. The output means 62 has a function of displaying and outputting the construction cost comparison table 58 on the display of the printer 63 or the computer 10, for example.

  Further, when the construction of the reinforced one-storied building 42 is determined, the storage device 14 stores the calculation formula 64 for obtaining the renovation cost 56 by the fourth calculation means 60 and the second calculation. It is managed to store the structure of the multi-storey building calculated by the means 40 and the design data 34 including the specifications until the start of the renovation work.

FIG. 5 is an explanatory diagram showing an example of the comparison table 58.
The figure (a) shows the costs for building a two-story building from the beginning and for building a reinforced one-story building 42 and then renovating it to two stories 10 or 15 years later. It is a comparison. For the two-story building, the Kagura type and the hut type were illustrated. The kagura type is the building 70 having a partial two-story structure shown in FIG. The hut type refers to a building that does not require roofing when adding the second floor, which will be described later with reference to FIGS. 9 and 10.

  In the comparison table of FIG. 5 (a), it is estimated that it would cost 20 million yen to construct a two-story building from the beginning. On the other hand, when the one-story building 42 reinforced at the beginning is built, it costs 15 million yen plus a reinforcement cost of 700,000 yen, resulting in a total construction cost of 155.7 million yen. For example, if renovation work is carried out on a two-story building 15 years later, the renovation cost will be 9 million yen, and the total initial construction cost will be 24.7 million yen.

  As a result, a difference of 4.7 million yen can be made when comparing the two-story building from the beginning and the two-story renovation after the first reinforced one-story building 42 was built. I understand that. After fully explaining this difference to the client, the optimum construction plan can be advanced.

  On the other hand, if the first floor is of the same level, it is estimated that it would cost 21 million yen if it was built from the beginning with two stories. On the other hand, when the one-story building 42 reinforced at the beginning is built, the total cost is 16 million yen, which is 16 million yen plus the reinforcement cost 900,000 yen. For example, if the renovation work is carried out on a two-story building 15 years later, the renovation cost will be 5 million yen, and the total construction cost will be 21.9 million yen.

  As a result, the difference between the two-story building from the beginning and the two-story renovation after the first reinforced one-story building 42 is 900,000 yen I understand that. Comparing the Okakura type with the attic type, the renovation cost for the attic type is about half price. In the case of the Gokagura type, a part of the roof of a one-story building will be demolished to expand the second floor. On the other hand, in the case of the hut type, roof construction is unnecessary. This appears as a difference in renovation costs.

FIG. 5B is a comparison table for explaining another effect of the attic type building.
The attic building can be provided with a white roof surface inclined on one side, as will be described later. Therefore, an efficient large-area photovoltaic power generation facility can be attached to the roof surface. For example, in the case of a plan for renovation work after 15 years, the profit from power sales obtained in 15 years is written in the comparison table. The cost is calculated to cover the cost of renovation.

  In the example of Fig. 5 (a), it would cost 21 million yen to construct a two-story building from the beginning, and after renovating it to a two-story building after building a reinforced one-story building 42 In this case, the total construction cost was estimated to be 21.9 million yen. Here, when a photovoltaic power generation facility is installed, an additional facility cost of 5 million yen is added, and the total construction cost is 26.9 million yen.

  Here, the difference between the two-story building from the beginning and the one-story reinforced one-storied building 42 that was renovated to two-story after 15 years was 5.9 million. Spread in a circle. On the other hand, the profit from selling electricity for 15 years is 11 million yen. As a result, it turns out that profit of 5.1 million yen comes out. Since this profit can be compensated for the renovation costs, it can be shown to the owner that this is an extremely economical plan.

  As mentioned above, it is possible to make a plan that solar power generation facilities are installed and that future renovation costs will be surpassed by selling electricity. Of course, if the roof area is large enough, the private power generation equipment can be installed in the same way whether it is a Kagura type or a total two-story structure. If other power generation facilities using natural energy are also provided, the same calculation can be performed.

FIG. 6 is a specific operation flowchart of the first to third arithmetic means.
In step S11, the first computing means 26 is activated. In step S12, a floor plan designation process is performed. That is, the floor plan desired by the client is designated and input to the computer 10. In step S13, design data 18 of a normal one-story building 16 using this floor plan is generated. In step S14, the construction cost is calculated based on this design.

  In step S15, the second calculation means 40 is activated. In step S <b> 16, the floor plan of the design data 18 generated by the first calculation means 26 is acquired for designing the first floor portion 30. In step S17, design data 34 for a two-story building is generated. In step S18, the building cost of this building is calculated.

 In step S19, the third computing means 52 is activated. In step S20, the structure and specifications of the first floor portion 30 are acquired from the design data 34 generated by the second computing means 40. In step S21, design data 44 of a reinforced one-story building 42 is generated in accordance with the structure and specifications of the first floor portion 30. In step S22, the construction cost of the reinforced one-storied building 42 is calculated.

FIG. 7 is an operation flowchart of the fourth and fifth arithmetic means.
In step S31, the fourth computing means 60 is activated. In step S32, the design data 34 of the reinforced one-storied building 42 which the 2nd calculating means 40 produced | generated is acquired. In step S33, the design data 44 of the two-story building generated by the third calculation means 52 is acquired. In step S34, the contents of the work required to renovate the reinforced one-story building 42 to a two-story building and the cost of the renovation work are calculated.

  In step S35, the fifth computing means 66 is activated. In step S36, the construction cost of the two-story building generated by the third computing means 52 is acquired from the above calculation result. In step S37, the construction cost of the reinforced one-storied building 42 generated by the second computing means 40 is acquired. In step S38, the contents of the renovation work and the renovation work cost generated by the fourth calculation means 60 are acquired. Further, in the case of a building to which a private power generation facility can be attached, in step S39, a profit for selling power of the private power generation facility is calculated. Then, a comparison table 58 summarizing these results is generated and output.

  Next, a process of storing the above result in the storage device 14 until the time of renovation work is executed. First, in step S41, a storage period corresponding to the start time of renovation work is designated. You can specify that you want to save at least this date. In step S42, an arithmetic expression 64 for the renovation cost is acquired. When renovating, material costs and labor costs may be changed. This is for use in the recalculation. In step S43, period specifying storage data 54 including this arithmetic expression 64 and all design data 18, 34, 44 necessary for the renovation work is generated, and the specified storage period is displayed and stored in the storage device 14.

8A is a side view of the one-story building 16, FIG. 8B is a side view of the building 68 having a total two-story structure, and FIG. 8C is a cross-sectional view thereof.
In the case of renovation to a total of two floors in the future, the floor plan of the one-story building 16 is first designed according to the wishes of the owner. This is similar to the case described with reference to FIG. Then, a building 68 having a total two-story structure shown in FIG. 8B is designed by providing this floor plan in the first floor part 32b and extending the second floor part 32a. Subsequently, a reinforced one-story building using the design data of the first floor portion 30a is designed. In this case, as shown in FIG. 8C, since the second floor portion 32a is placed on the entire first floor portion 30a, the entire first floor portion 30a is designed to be reinforced. The subsequent procedure is the same as the example already described.

  Since the structure of a normal one-story building mainly calculates the roof load, the load applied to the downstairs when the second floor is expanded is not considered. In the present invention, structural calculations are performed assuming that the second floor is expanded at the design stage, and the pillars and beams on the first floor are reinforced. Therefore, even when the second floor is expanded, the load can be firmly supported downstairs, and excellent earthquake resistance can be secured even in the event of an earthquake.

  In addition, we can plan to add a one-story house in line with changes in our lives, and we have expanded the second floor in consideration of the floor area ratio and slanting regulations. For example, in the case of a partial two-story structure, the necessary space can be efficiently increased while taking advantage of the shape of a one-story house. In other words, it is possible to realize a partial two-story building in which a part of the roof of the one-story building is left and a well-balanced three-dimensional feeling is expanded.

  In addition, if the one-story house can be renovated into a total of two floors, it will be possible to create a comfortable living space. Considering living in two households, it becomes easier to secure a space for families to gather. In addition, it is possible to secure a large part of the back of the one-storied hut and renovate it in the future to provide a two-floor room. In this case, the greatest effect is that there is no need to replace the roof.

  In addition, none of the buildings with a partial two-story structure, a total two-story structure, or a shed-back structure requires a new site for expansion. The same applies to a three-story structure. That is, since the land can be used effectively, an economical and rational construction plan can be presented to the owner by the above-described design, calculation processing, and generation of a comparison table.

FIG. 9A is a side view of the building 72 having a shed utilization structure, FIG. 9B is a side view of the building 68 after extension, and FIG. 9C is a cross-sectional view thereof.
First, a building having the structure shown in FIG. Thereafter, as shown in FIG. 9C, the second floor portion 32b is added on the first floor portion 30b. That is, the floor plan of the first floor portion 30b is designed, and then the reinforced one-story structure is designed, and the building shown in FIG. 9A is first constructed.

  Here, when the building is renovated, the veranda 88 is attached to the outer wall 84 simultaneously with the start of the construction. A person in charge of renovation can enter and leave the building using the opening 86 of the veranda 88. In addition, materials for renovation work can be carried through the opening 86. Therefore, it does not hinder the lives of residents of this building even during construction. That is, an opening 86 used as a window after completion of the renovation work is provided in a portion corresponding to the second floor of the outer wall 84 of the renovated building. As the opening 86, for example, a balcony can be used as a scaffold for construction. Materials can be brought in from the window or sweep window. In this way, a great effect can be expected that the temporary relocation of residents during the construction is unnecessary.

FIG. 10 is a longitudinal cross-sectional view of a building 72 having a shed-back structure, where (a) is before renovation and (b) is after renovation.
As shown in this figure, in the building 72 having the structure of utilizing the attic, the second-floor portion 32b is refurbished without replacement work of the roof 76. Therefore, as shown in (b) of the figure, a ceiling height 80 of 2 meters or more is required from the beginning. The height and size of the attic space 82 should be set to an appropriate value based on clearing regulations and further based on the extension plan.

  The plan of renovating the roof of a large single-floor roof and installing a child room by installing windows and balconies on the second floor has the effect that it can be used for solar power generation because it can secure a large roof area. In addition, there is an effect that the selection according to the budget can be made by comparing the estimate when the reinforcement is not performed in the initial construction plan and when the reinforcement is planned for the second floor. In addition, by leaving the calculation formula and the design data of the two-story structure, it is possible to reduce the design and cost calculation effort during the renovation work.

  Note that the computer program executed by the arithmetic processing unit may be modularized in units illustrated in functional blocks, or may be integrated by combining a plurality of functional blocks. Further, the above computer program may be used by being incorporated into an existing application program. The computer program for realizing the present invention can be recorded on a computer-readable recording medium such as a CD-ROM and installed in any information processing apparatus for use.

DESCRIPTION OF SYMBOLS 10 Computer 12 Processing unit 14 Memory | storage device 16 One-story building 18 Design data 26 1st calculation means 30 1st floor part 32 2nd floor part 34 Design data 40 2nd calculation means 42 Reinforced one-story building 44 Design Data 52 Third calculation means 54 Period-designated storage data 58 Comparison table 60 Fourth calculation means 62 Output means 63 Printer 64 Calculation formula 66 Fifth calculation means 68 Total two-story structure building 70 Partial two-story structure Building 72 Building with shed utilization structure 74 Stairs expansion section 76 Roof 80 Ceiling height 82 Shack space 84 Outer wall 86 Opening 88 Veranda 90 Private power generation equipment

Claims (9)

A first computing means for computing the structure, specifications and construction cost of a one-story building with a floor plan specified;
A second computing means for computing the structure, specifications, and construction cost of a multi-story building having a floor plan common to the above-mentioned designated floor plan;
Replace the structure and specifications of the first floor of the multi-storey building with the structure and specifications of a single-story single-story building, and calculate the structure, specifications and construction cost of a reinforced one-story building. A third computing means;
The 4th which computes the contents of construction and the cost of renovation necessary to renovate the reinforced one-storied building into a multi-story building where the structure and specifications are computed by the second computing means And a computing means of
The construction cost of a multi-storey building calculated by the second calculation means, the construction cost of a reinforced one-story building obtained by the calculation of the third calculation means, and the fourth calculation means A fifth calculation means for generating and outputting a comparison table comparing the renovation costs obtained by the calculation of
The calculation formula for obtaining the cost of renovation work by the fourth calculation means and the design data including the structure and specifications of the multi-story building calculated by the second calculation means until the start of the renovation work. A building construction plan proposal system characterized by comprising a storage device for storage.   The multi-story building computed by the second computing means is either a total two-story structure, a partial two-story structure, or a shed-back structure, and the reinforced one-story building The building construction plan proposing system according to claim 1, wherein each of them has a section for increasing stairs on the first floor portion.   3. The building construction plan proposing system according to claim 2, wherein the building is provided with a shed space having a ceiling height necessary for refurbishing the second floor without refurbishing the roof.   4. The building construction plan proposal system according to claim 3, wherein the building is provided with a shed space including a place having a ceiling height of 2 meters or more.   The building construction plan proposal system according to claim 3 or 4, wherein an opening used as a window after completion is provided in a portion corresponding to the second floor on the outer wall after renovation of the building.   6. The building construction plan proposal system according to claim 5, wherein the opening used as a window after completion is a balcony window or a sweep window.   The building is provided with a power generation facility using natural energy or other private power generation facility, and profits obtained by selling power by the time of renovation of the building are also shown in the comparison table. The building construction plan proposal system described in any of the above.   A building construction plan proposing program for causing a computer to function as each means according to claim 1.   A computer-readable recording medium on which the construction plan proposing program according to claim 8 is recorded.

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