JP3179447U - Temporary scaffolding design support system - Google Patents

Abstract

[PROBLEMS] To make it possible to easily design a temporary scaffold that ensures safety while eliminating the waste of materials and reducing the construction cost by allowing structural analysis to be easily performed even for a large-scale temporary scaffold. To provide a temporary scaffolding design support system.
A scaffold unit corresponding to a building is selected from scaffold units stored in a scaffold unit database based on information on a temporary scaffold input by an information input means. The structure analysis processing means 14 obtains the structure of the selected scaffold unit and configures a temporary scaffold. Based on the allowable strength of the material stored in the allowable strength storage database 25, the structure of the temporary scaffold is analyzed.
[Selection] Figure 2

Description

  The present invention relates to a temporary scaffold design support system that supports the design of a temporary scaffold.

  Conventionally, a temporary scaffold has been constructed at a construction site or a repair site of a building. Temporary scaffolding includes pipes for building sites that are installed to extend in the vertical direction, main materials such as parent pipes that are installed to extend in the horizontal direction, cloth pipes and columbing pipes, handrail pipes, scaffolding plates, etc. It is composed of materials such as joints and clamps for connecting the two.

  When a building becomes large-scale, the number of materials constituting the temporary scaffold becomes enormous. For example, in the system disclosed in Patent Document 1, in the temporary scaffold construction in which the scaffold design drawing and the drawing information do not exist, based on conditions such as the outline or drawing of the building to be constructed and the specifications of the temporary scaffold It is configured to calculate materials and construction costs by computer processing. With this, it is possible to obtain the material type and quantity of the temporary scaffold according to the occupational safety and health regulations, and display and output it as a material list.

Japanese Patent No. 3546344

  By the way, since it is necessary to ensure the safety of the temporary scaffold, structural analysis is required to verify whether or not a predetermined strength is ensured. However, the material of the temporary scaffold includes, for example, a plurality of pipes having different lengths in the case of pipes, and there are a plurality of scaffold plates having different lengths as to the scaffold plates, and there are various kinds of materials.

  In addition, regarding the structure of the temporary scaffold, for example, when the scaffold is taken as an example, there are scaffolds in which hexagonal shapes and octagonal shapes are arranged in addition to the quadrangular scaffolds in which the scaffold plates are arranged in a square shape in a plan view. Furthermore, a structure in which two, three, and four scaffold plates are arranged in the width direction may be employed.

  Therefore, since various structures are made using various materials, there are almost infinite combinations, and how to perform the structure analysis becomes a problem.

  If structural analysis is not performed, it is difficult to verify whether the prescribed strength is secured. If the structure is designed with an allowance for strength, the material may be wasted, and construction costs This results in an increase in

  The present invention has been made in view of such points, and the object of the present invention is to facilitate structural analysis even in a large-scale temporary scaffolding, thereby eliminating waste of materials. It is intended to make it possible to easily design a temporary scaffold that ensures safety while reducing the construction cost.

  In order to solve the above problems, the present invention has the following configuration.

In the first device, in the temporary scaffold design support system used when designing temporary scaffolds for various buildings,
A scaffold unit database for storing a plurality of types of scaffold units constituting a temporary scaffold together with materials necessary to construct the scaffold unit and the quantity of the materials;
An information input means for the user to enter information about the temporary scaffold,
An allowable strength storage database for storing the allowable strength of the material,
The scaffold unit corresponding to the building is selected from the scaffold units stored in the scaffold unit database based on the information regarding the temporary scaffold input by the information input means, and the structure of the selected scaffold unit is obtained. And a processing unit configured to perform a structural analysis of the temporary scaffold based on the allowable strength of the material stored in the allowable strength storage database.

  According to this configuration, since the structure of the scaffold unit is stored in the scaffold unit database, by grasping the structure of each scaffold unit and configuring the temporary scaffold with the scaffold unit, for example, the relative positions of a plurality of pipes It is possible to easily grasp the relationship and the positional relationship between the scaffold plate and the pipe, that is, the distance between the pipes and the distance between the support points of the scaffold plate. And, by obtaining the allowable strength of the material from the allowable strength storage database, it is possible to perform structural analysis accurately and easily even if the temporary scaffolding is large-scale, and the reliability of the analysis results can be improved. Rise.

In the second device, in the first device,
The information input means is configured to be able to input weather conditions,
The processing means is configured to perform a structural analysis based on weather conditions input to the information input means.

  According to this configuration, for example, by inputting the wind strength as the weather condition into the information input means, it is possible to easily grasp how strong the wind can be secured.

In the third device, in the first or second device,
The scaffold unit database stores the distances between materials constituting the scaffold unit,
The information input means is configured to be capable of inputting a loading load on the scaffold plate,
The processing means is based on the distance between the materials stored in the scaffold unit database, the loaded load input in the information input means, and the allowable strength of the material stored in the allowable strength storage database. It is configured to perform structural analysis.

  According to this configuration, for example, the distance between the pipes of the temporary scaffold is accurately grasped, and the structural analysis is performed based on the distance between the pipes, the load load and the allowable strength, thereby further improving the reliability of the analysis result.

  According to the first device, the structure of the scaffold unit selected by the user is obtained from the scaffold unit database, and the structure analysis of the temporary scaffold is performed based on the allowable strength of the material stored in the allowable strength storage database. ing. Thereby, even if it is a large-scale temporary scaffold, structural analysis can be performed easily and the temporary scaffold which ensured safety | security can be easily designed, eliminating a waste of material and reducing a construction cost.

  According to the second device, structural analysis can be performed based on weather conditions, so that the weather conditions that can ensure the safety of the temporary scaffolding can be grasped in advance and used for judgment of evacuation of workers. Can be further improved.

  According to the third aspect, since the structural analysis is performed based on the distance between the materials of the temporary scaffold, the load capacity, and the allowable strength, the reliability of the analysis result can be further improved. Safety can be sufficiently secured.

It is a conceptual diagram which shows the relationship between the temporary scaffold design support system concerning each embodiment, and each client. It is a block diagram of a temporary scaffold design support system. It is a table | surface which shows a required material and the quantity in the case of making a tower foot scaffold as a quadrilateral scaffold and making it a two-story passage type. It is a table | surface which shows the top view of 2 sheets floor passage type as a square scaffold, required material, and its quantity. FIG. 4 is a view corresponding to FIG. 3 in a case where a tower foot scaffold is a quadrangular scaffold and a three-story passage type is used. FIG. 4 is a view corresponding to FIG. 3 in a case where a tower footing scaffold is a quadrangular scaffold and a four-story passage type is used. FIG. 4 is a view corresponding to FIG. 3 in a case where the tower kumage scaffold is an octagonal scaffold. FIG. 5 is a diagram corresponding to FIG. 4 in the case where the tower kumage scaffold is an octagonal scaffold. It is a table | surface which shows the required material and quantity of a horizontal type | mold equipment scaffold. It is a table | surface which shows the required quantity of the parent pipe of a suspension scaffold. It is a figure which shows the pattern of a suspension scaffold. It is a table | surface which shows the information memorize | stored in the material unit price database. It is a table | surface which shows the information memorize | stored in the walk-in database. It is a table | surface which shows the information memorize | stored in the allowable intensity | strength storage database. It is a figure which shows the condition input screen of a tower kumi scaffold. It is a figure which shows the condition input screen of a horizontal type | mold apparatus scaffold. It is a figure which shows the condition input screen of a suspension scaffold. It is a figure which shows the input screen for structure analysis. It is a table | surface which shows the material required for a building land, and its quantity. It is a table | surface which shows the material quantity at the time of adding up all the building land. It is a table | surface which shows the material required for bracing, and its quantity. It is a table | surface which shows the material quantity at the time of adding up all braces. It is a figure which shows the structure of a tower crease scaffold. It is a figure which shows the format of a construction specification. It is a table | surface which shows the quantity of cloth pipes. It is a table | surface which shows the quantity of a scaffold board.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature and is not intended to limit the present invention, its application, or its use.

  FIG. 1 is a conceptual diagram showing the relationship between a temporary scaffolding design support system 1 and clients A to D according to an embodiment of the present invention. The temporary scaffold design support system 1 is configured by a so-called SaaS providing server that provides SaaS (Software as a Service), and is connected to the Internet network via a communication line. As shown in FIG. 2, the temporary scaffold design support system 1 includes a Web server 2, a basic application server 3, and a basic database server 4.

  The temporary scaffold design support system 1 is a so-called general-purpose computer, and functions by installing a temporary scaffold design support processing program for executing steps to be described later. Moreover, by using the temporary scaffold design support system 1, a temporary scaffold design support method can be provided.

  As shown in FIG. 1, clients A to D (corresponding to users), which are client computers, are similarly connected to the Internet network via communication lines. Clients A to D are general-purpose personal computers installed with a well-known Web browser.

  Note that the communication lines that the clients A to D connect to the Internet network may be wired or wireless. Further, in this specification, for convenience of explanation, the number of clients is four, but the number of clients is not limited to this.

  The clients A to D are given a user ID and a password in advance, and when accessing the temporary scaffold design support system 1, input of the user ID and password is required. That is, the temporary scaffold design support system 1 is configured to allow access only to specific clients A to D and provide a use environment of the basic application server 3 and the basic database server 4 shown in FIG. . Therefore, the clients A to D can use the application of the basic application server 3 and the data of the basic database server 4 from anywhere so-called location free.

  The Web server 2 is a well-known server, and transmits various information through the Internet network in response to a request from software on the client A to D side such as a Web browser.

  The basic application server 3 includes a scaffold type selection unit 10, an information input unit 11, an estimation processing unit 12, a display processing unit 13, and a structure analysis processing unit 14.

  The basic database server 4 includes a scaffold unit database 20, a material unit price database 21, a walk-in database 22, a user data folder 23, a scaffold type drawing database 24, and an allowable strength storage database 25.

  The backbone application server 3 reads various data stored in the backbone database server 4 based on information about the temporary scaffolds input from the clients A to D, performs structural analysis of the temporary scaffolds of the building, It is also configured to calculate the estimated cost of construction work.

  In this temporary scaffolding design support system 1, there are multiple types of temporary scaffolds that can perform structural analysis and temporary scaffolds that can calculate the estimated amount of money, and can also handle a wide range of building sizes and shapes for constructing temporary scaffolds It can be done. It should be noted that only structural analysis can be performed, or only the estimated amount can be calculated.

  In the scaffold unit database 20, a scaffold unit constituting each of the tower frame scaffold, the horizontal equipment platform scaffold, and the suspension scaffold, the materials necessary for constructing the scaffold unit, and the quantity of the materials are stored in association with each other. . Further, the scaffold unit database 20 stores the structure of the scaffold unit, that is, the arrangement state (horizontal, vertical, etc.) of the materials (pipes, scaffolding plates, etc.) constituting the scaffold unit and the relative positional relationship of the materials. Has been.

  A tower stake scaffold, a horizontal equipment stake scaffold, and a suspension scaffold are types of scaffolds, and which scaffold is used depends on the building. That is, the tower stake scaffold is used when the building is a cylindrical vertical tank, for example, and the horizontal equipment stake scaffold is used when the building is a cylindrical horizontal tank, for example. It is used in a state of being hung from the top of a building (including a stand).

  First, the Tower Kumi scaffold will be described. There are four types of tower frame scaffolds: quadrilateral, octagonal, decagonal, and dodecagonal. The quadrangular shape is a form in which a plurality of scaffolding plates are arranged so as to constitute each side of the quadrangle in plan view (see FIG. 4), and the octagonal shape similarly constitutes each side of the octagon. In this manner, the scaffolding plate is arranged (see FIG. 8). The same applies to the decagon type and the dodecagon type. The quadrangular, octagonal, decagonal, and dodecagonal types each have a two-passage passage type in which two scaffolding plates are arranged in the width direction, and a three-layout passage type in which three scaffolds are arranged, There is a 4-story passage type with 4 sheets arranged.

  The quadrilateral type has a feature that the structure is simpler than that of the octagonal type, so that the cost can be reduced. On the other hand, the octagonal type has a complicated truss structure, so the strength is high. It is suitable for use.

  As shown in FIG. 3, the quadrangular two-story passage type is further divided by the diameter φ of the vertical tank that is a building. When the diameter φ of the vertical tank is smaller than 500 mm, when it is smaller than 500 mm and smaller than 900 mm, when smaller than 900 mm and smaller than 1400 mm, there are many patterns thereafter every 500 mm up to a maximum of 11400 mm. In FIG. 3, a case where the diameter φ is smaller than 1900 mm and smaller than 2400 mm, a case where it is smaller than 2400 mm and smaller than 2900 mm is described, and the other is omitted.

  A part of the quadrilateral double-passage type pattern will be described with reference to FIG. When the diameter φ is 1900 mm or more and smaller than 2400 mm, there are two types of “6.0 m” and “5.0 m”. “6.0 m” is a pattern that allows the maximum length of a single pipe used for constructing a temporary scaffold to 6.0 m, and “5.0 m” is the maximum length of a single pipe. The pattern is 5.0 m. “6.0 m” and “5.0 m” can be selected by the user as described later. The height of the temporary scaffolding is handled by increasing the number of floors (stages) of the temporary scaffolding.

  The numerical values in the left column in the case of “6.0 m” in FIG. 3 indicate the types of materials and the quantities of the materials necessary to construct a temporary scaffold for one stage. This is a scaffold unit for one stage. In other words, in the “6.0m” quadrangular two-story passage type that constitutes a single-stage scaffolding unit, there are 16 4.5m single pipe pipes and 4 1.5m single pipe pipes. 4 x 1.0m pipes, 6 x 4000mm scaffolding plates, 12 x 2000mm scaffolding boards, 84 orthogonal clamps, 2 steel clamps, 2 fixed bases, 3000mm baseboard This shows that four scaffold boards and four 2000 mm baseboard scaffold boards are required. In addition, eight 4.5m single pipes for rooting, four 1.5m single pipes, four 1.0m single pipes and 52 orthogonal clamps are required.

  When the diameter φ is 1900 mm or more and smaller than 2400 mm, a 6.0 m single pipe is not required to construct a single-stage scaffolding unit. .0m "and the same materials and quantity.

  In some cases, depending on the area and on-site workers, a 6.0 m single pipe may not be used. In that case, use a 5.0 m or less single pipe. Also, there are some sites that do not prepare 6.0m single pipe, and in that case, use 5.0m or less single pipe.

  Further, 20 fixed bases for building land are required when the height H of the vertical tank is 31 m or less, and 40 when the height H is higher than 31 mm. As will be described later, this is automatically selected based on the value of the height H input by the user. The same applies to the floorboard. 56 reinforcing jack bases, 56 reinforcing pipes and 112 free clamps are required.

  FIG. 4 shows a plan view of the scaffold unit for one stage and a breakdown of materials. This is the material and the quantity necessary for actually constructing a scaffold unit for one stage, and this is stored in the scaffold unit database 20 as one scaffold unit.

  The plan view of the scaffold unit shown in FIG. 4 shows the arrangement state of the material of the scaffold unit and the relative positional relationship, and this is stored in the scaffold unit database 20. A construction pipe constituting the construction site extends in the vertical direction.

  The space | interval of a building pipe changes with parts, and is 1800 mm, 1650 mm, and 1300 mm. The cloth pipe extends in the horizontal direction. The cloth pipe is fixed to the building pipe by a clamp, and therefore the distance between the supporting points of the cloth pipe corresponds to the distance between the building pipes. Moreover, since the colobasis pipe also extends in the horizontal direction and is fixed to the building pipe by a clamp, the distance between the fulcrum of the colobashi pipe also corresponds to the interval of the building pipe. Since the scaffolding plate is installed substantially horizontally on the colobaci pipe, the distance between the colobashi pipes is the distance between the supporting points of the scaffolding plate.

  The scaffold unit database 20 includes a plurality of patterns corresponding to the diameter of each type of vertical tank of 2 to 4 sheets, and a case of “5.0 m” for each of the diameter patterns. The case of “6.0 m” is stored as a scaffold unit, and the stored scaffold unit includes the materials necessary for the construction, the material quantity, the arrangement state of the materials, and the relative positional relationship of the materials. Is associated.

  In addition, a quadrilateral three-passage type scaffold unit shown in FIG. 5, a quadrilateral four-passage type scaffold unit shown in FIG. 6, and an octagonal scaffold unit shown in FIG. 7 are stored. Yes. Like the quadrangular type, the octagonal type has a two-passage type, a three-passage type, and a four-passage type. FIG. 8 shows a plan view showing a part of the octagonal scaffold and a breakdown of materials. The plan view and the breakdown shown in FIGS. 4 and 8 are stored in the scaffold unit database 20 for each scaffold unit. In particular, the quantity can be easily corrected by storing the breakdown in a table format. It becomes possible. Although not shown, the dodecagon type is also stored in the scaffold unit database 20 in the same manner.

  Although some materials are omitted in the plan view of the octagonal scaffold shown in FIG. 8, the arrangement state of the building pipe, the cloth pipe, the colobashi pipe, the scaffolding plate and the relative positional relationship are the same as the rectangular scaffold shown in FIG. Is described, and the arrangement state and the relative positional relationship are stored in the scaffold unit database 20. Similarly, the arrangement state and relative positional relationship of all materials are stored for other types of scaffolds.

  When the diameter is 1900 mm or more and smaller than 2400 mm, the size of the building is not so large, so a scaffold can be constructed without using 6.0 m or 5.0 m single pipe, If the diameter is larger than 7000 mm, a single pipe of 6.0 m or 5.0 m is used.

  The basic database server 4 also stores expenses required for curing, expenses required for using various heavy machinery, and the like.

  Next, a horizontal type device scaffold will be described. As shown in FIG. 9, the horizontal type equipment scaffold is a case where the diameter φ of the horizontal tank is smaller than 500 mm (not shown), 500 mm or more and less than 1000 mm (not shown), or 1000 mm or more and less than 1500 mm. There is. For each of these, there are two-passage type, three-passage type, and four-passage type. Further, each passage type has a first stage work floor and a second stage work floor. Therefore, there are multiple scaffold units divided by horizontal tank diameter, aisle type, and number of work floors for horizontal equipment platform scaffolds, and each scaffold unit has the necessary materials and their quantities, The arrangement unit and the relative positional relationship of materials are associated with each other and stored in the scaffold unit database 20.

  Next, the suspension scaffold will be described. As shown in FIG. 10, the suspension scaffold has a pattern without a fireproof coating and a pattern with a fireproof coating. As shown in FIG. 11, the pattern without fireproof coating may further be a four-sided passage, a two-sided passage, a one-side passage, or no passage. Also regarding this suspension scaffold, the arrangement state of the materials and the relative positional relationship of the materials are stored in the scaffold unit database 20.

  Next, the material unit price database 21 and the walk-in database 22 will be described. In the material unit price database 21, for example, as shown in FIG. 12, unit prices and weights of single pipes, scaffolding plates, clamps, and the like are stored. The single pipe is a pipe used as a building pipe, a cloth pipe, or a corobasi pipe.

  The unit price includes a budget unit price, an estimated unit price, and a purchase unit price. As shown in FIG. 13, the yield database 22 stores the yield for each material. The walk-in is an index related to the work amount per worker per day, that is, work efficiency, and is a numerical value that is different for each contractor who undertakes the work. The work is specifically an assembly / disassembly work of each material constituting the scaffold.

  The material unit price database 21 and the walk-in database 22 can be arbitrarily changed by inputting values uniquely determined by the clients A to D accessing the temporary scaffold design support system 1. The changed unit price and yield are stored for each of the clients A to D.

  The user data folder 23 shown in FIG. 2 is provided for each of the clients A to D. In the user data folder 23, estimated amounts obtained by the clients A to D using the temporary scaffolding design support system 1 are stored together with materials and their quantities.

  The scaffold type drawing database 24 stores drawing data that represents a schematic diagram of each temporary scaffold, and includes drawing data that represents a tower platform scaffolding, drawing data that represents a horizontal equipment platform scaffolding, and drawing data that represents a suspension scaffold. Each drawing data is displayed on the computer screen of the clients A to D, and can be performed while referring to the scaffold structure when the user inputs various data.

  The allowable strength storage database 25 of the basic database server 4 stores the allowable strength of materials. As shown in FIG. 14, the type of scaffolding plate is a steel lightweight scaffolding plate used when constructing a temporary scaffolding. There are three types of dimensions: a thickness T of 40 mm, a width W of 250 mm, and a length L of 2000 mm, 3000 mm, and 4000 mm. The unit weight is also stored to determine the weight of the scaffolding board. The section modulus and allowable bending stress are stored.

  As the single pipe, a steel pipe having an outer diameter of 48.6 mm and a thickness of 2.4 mm (STK500) defined in JIS G 3444 is used. For single pipe pipes, unit weight, section modulus, turning radius, and sectional area are stored. Further, as the allowable stress degree of STK500, each of tension, compression, bending, and shearing is stored. In addition, the Young's modulus, yield point, allowable tensile stress level, and allowable bending stress level of the single pipe pipe are also stored.

  The scaffold type selection means 10 of the basic application server 3 is for causing the clients A to D to select which scaffolding scaffolding, horizontal equipment scaffolding, and suspension scaffolding to design and estimate. For example, the scaffold selection screen is displayed on the computer screens of the clients A to D so as to be selectable.

  The information input means 11 of the backbone application server 3 includes various information input screens for the tower scaffolding (see FIG. 15), various information input screens for the horizontal equipment scaffolding (see FIG. 16), and various information inputs for the suspension scaffolding. A screen (see FIG. 17) is displayed on the computer screens of the clients A to D, and the data input to each input screen is temporarily stored and sent to the estimation processing means 12 and the structural analysis processing means 14. Has been.

  As shown in FIG. 15, various information input screens for the tower skeletal scaffold can input the height H of the device (vertical tank as a building), the diameter φ of the device, the shape of the scaffold, and the like. It has become. Scaffold shapes are quadrilateral, octagonal, decagonal, and dodecagonal, and the range of device diameters corresponding to each scaffold shape is displayed next to the column for entering the scaffold shape. ing. For example, a rectangular shape cannot be selected as a temporary scaffold for a vertical tank having a diameter larger than 11400 mm. As a result, it is possible to prevent the scaffold shape not corresponding to the device from being selected by mistake.

  "Long pipe size" on the various information input screens for tower kumi scaffolds is for selecting whether the maximum length of a single pipe pipe is allowed to 6.0 m or 5.0 m. . This is to cope with, for example, an area where a 6.0 m single pipe is not used or a work site.

  In addition, it is possible to input whether or not a baseboard is installed, whether or not curing is installed, and whether or not heavy machinery is used.

  The material unit price can be selected from three types. That is, it is possible to select whether to calculate the estimated amount based on the budget unit price of the material unit price database 21, calculate the estimated amount based on the estimated unit price, or calculate the estimated amount as the purchase unit price.

  The material quantity coefficient is input when it is desired to arbitrarily increase or decrease the quantity of each material calculated based on the database on the clients A to D side. If 1 is input, no increase or decrease is performed, and if a numerical value larger or smaller than 1 is input, an estimated amount is calculated based on a quantity obtained by multiplying the quantity of each material by the numerical value. In FIG. 15, since 1.10 is input, the quantity of each material is estimated to be about 10% higher.

  The artificial unit price can be set freely by the user.

  The material unit price coefficient is input when the unit price of the material is arbitrarily increased or decreased on the clients A to D side. When 1 is input, no increase or decrease is performed. When a numerical value larger or smaller than 1 is input, the estimated amount is calculated based on a unit price obtained by multiplying the unit price of each material by the numerical value. In FIG. 15, since 1.10 is input, the unit price of each material is estimated to be about 10% higher.

  At the bottom of this input screen, a scaffold drawing display area is provided. In this scaffold drawing display area, a drawing of the tower crease scaffold stored in the scaffold type drawing database 24 is displayed. The user can input various types of information while imagining the structure of the temporary scaffold by looking at the scaffold type drawing displayed on the input screen.

  A variety of information input screens for the horizontal type equipment scaffold are as shown in FIG. Further, various information input screens for the suspension scaffold are as shown in FIG.

  The information input means 11 also has various information input screens for structural analysis (see FIG. 18). This structural analysis input screen is also displayed on the computer screens of the clients A to D to input data. Is temporarily stored and sent to the structural analysis processing means 14.

  The structural analysis input screen is displayed after the scaffold selection on the scaffold selection screen (shown in FIG. 15) is completed.

  The structural analysis input screen is provided with a condition input area for inputting the weight of one worker and a dynamic load input area for inputting the weight of a worker's transported material. The dynamic load is a combination of the weight of the worker and the weight of the transported item.

  The structural analysis input screen is provided with a static load input area. The values stored in the scaffold unit database 20 are automatically input as the gap between the building pipes, the gap between the collaborative pipes, and the gap between the cloth pipes. For these intervals, the maximum value among the temporary scaffolds is selected. That is, the value of the strictest part is selected and input for intensity calculation.

  The number of scaffolding plates in the static load input area, the number of handrail steps, the height of the scaffolding (height up to the top handrail), the number of steps of the two construction pipes, the number of steps of the construction pipe one piece, Input by the user. The number of steps in the two-piece construction pipe section means that if the height of the temporary scaffolding exceeds the predetermined height, it is necessary to use the two construction pipes in the lower part as one set, and the number of stages in that part It is. The number of stages of the construction pipe one-piece set is the number of stages other than the construction pipe two-piece construction.

  The structural analysis input screen is provided with an input area related to curing. In this input area, the filling factor is input. The filling rate changes depending on whether you select No Curing (Filling Rate 0%), Mesh Sheet, Russell Net, or Sheet (filling rate 100%), so enter the filling rate according to the corresponding curing.

  On the structural analysis input screen, a wind speed and a wind coefficient as weather conditions can be input.

  The structural analysis input screen is provided with an information input area relating to wall connection for connecting the temporary scaffolding and the wall of the building. In this input area, an allowable load in the horizontal direction, an allowable load in the vertical direction, and an allowable clamping strength of the wall joint can be input.

  Furthermore, information related to the cane as a reinforcing material can be input to the structural analysis input screen.

  The structure analysis processing means 14 corresponds to the building from the scaffold units stored in the scaffold unit database 20 based on the information regarding the temporary scaffold input from the scaffold selection screen and the structure analysis input screen of the information input means. Select the scaffold unit to be used. Then, the structure of the selected scaffold unit (material arrangement state, relative positional relationship, etc.) is obtained, and the temporary scaffold is virtually configured. Thereafter, the allowable strength of the material stored in the allowable strength storage database 25 is read, and the structure of the temporary scaffold is analyzed based on the structure of the scaffold unit and the allowable strength of the material.

  Specifically, it is assumed that various types of information are input as shown in FIG. This corresponds to the information input step input by the clients A to D.

Since the height H of the device is 50 m, the number of temporary scaffolding steps is calculated based on this value. The number of stages (DAN) is as follows.
DAN = (H−0.2) /1.8
The numerical value obtained in is rounded off. In this case, the number of stages is 28.

  The diameter of the device is input as 2.50 m, and it can be seen from the input screen that the scaffold can only be selected in a rectangular shape. A quadrilateral type is selected, a three-story passage is selected, and 6 m is selected as the size of the long pipe. Therefore, the estimation processing means 12 selects the scaffold unit surrounded by the thick line frame in FIG. The left column in the bold line frame indicates the material for one stage and its quantity. The right column is a numerical value obtained by multiplying the numerical value in the left column by the number of steps 28.

  Moreover, about the member of a building land, as shown in FIG. 19, material and its quantity are obtained. First, the height HA up to the handrail at the top of the scaffold is obtained. HA is a value obtained by adding 1 m to the height H of the device, and is 51 m in this embodiment.

  Next, the material and the quantity per building lot are calculated. Since HA is larger than 7.5 m, a 6.0 m single pipe is mainly used. P60 in FIG. 19 is a 6.0 m single pipe, and a value obtained by dividing HA by 6.0, which is the length of the single pipe, is rounded down to the nearest decimal point. . In this embodiment, 8 is used, and eight 6.0 m single pipes are used. Further, the remainder obtained by dividing HA by 6.0 is 3.0 m, and this 3.0 m is included in the range of 2.5 <NOKO1A ≧ 3. Therefore, P35 (single pipe pipe of 3.5 m) is 1 Use this book. The number of joints (JYO) connecting these single pipes is eight. That is, for each building, eight 6.0 m single pipe pipes, one 3.5 m single pipe pipe, and eight joints are used. Since the number of building sites is 20, the number obtained by multiplying these by 20 is a member of the building sites (shown in FIG. 20). The number of building sites varies depending on the diameter of the device and the shape of the scaffold, and also varies depending on the height H.

  Further, as for the bracing member, as shown in FIG. 21, the material and its quantity are obtained. The length per brace is automatically calculated from the diameter φ and height H of the device. In the present embodiment, the length per brace (SUJI) is 7. 7m. Similarly, the number 38 of braces is automatically obtained from the diameter φ and height H of the device.

  Since 7.5 m <SUJI, one 6.0 m single pipe is used. Furthermore, since the value obtained by subtracting 6.0 from 7.7 is 1.7 (NOKO1C), this corresponds to the case of 1.5 <NOKO1C ≧ 2.0, and one 2.0 m single pipe is used. To do. Also, use one joint and six clamps. That is, one 6.0m single pipe, one 2.0m single pipe, one joint, and six clamps are used for each brace. Since the number of locations where braces are provided is 38, the number obtained by multiplying these by 38 is the number of bracing members (shown in FIG. 22).

  As described above, all the materials constituting the tower footing scaffold and the quantity thereof are obtained, and the arrangement state and relative positional relationship of the materials constituting the scaffold unit are obtained.

  Then, the structure analysis processing means 14 constructs a temporary scaffold of a desired scale by virtually combining the scaffold units.

  Thereafter, the allowable strength of the material stored in the allowable strength storage database 25 is read, and the information input from the structural analysis input screen of the information input means is read, and the following structural analysis processing is performed.

  In the structural analysis process, the buckling strength of building pipes, wind load (load applied when wind blows), bending strength of scaffolding plate, bending strength of colobashi pipe, bending strength of cloth pipe are more than the allowable strength of each material. Calculate whether it is high or not. In this case, a predetermined safety factor shall be secured.

  First, a method for analyzing the buckling strength of a building pipe that is a member constituting a temporary scaffold will be described. The following formula is used to calculate the allowable buckling stress.

Where l is the length of the building pipe, i is the secondary radius of the minimum secondary section of the building pipe, Λ is the critical slenderness ratio, σ _c is the allowable buckling stress value, ν is the safety factor, and F is the building It is the smaller one of the yield strength value of the steel material of the ground pipe or the three-quarter value of the tensile strength value.

  On the other hand, the stress actually generated in the lowermost building pipe is calculated. This is obtained from the load applied to the building pipe and the sectional area of the building pipe. The load applied to the lowermost building pipe can be obtained by the material constituting the temporary scaffold above the building pipe and the quantity thereof.

  Since the temporary scaffolding is virtually constructed by obtaining materials and quantities as described above, the load on one bottom building pipe is the construction pipe located at the bottom of the total weight of materials. It is obtained by dividing by the number of. At this time, the weight of the worker and the transported item is also added to the total load.

  If the allowable buckling stress is greater than the allowable buckling stress compared with the stress actually generated in the lowermost building pipe, “buckling strength OK” is displayed on the client screen. If the buckling stress is smaller, “buckling strength NG” is displayed on the client screen.

  Next, a method for calculating the wind load will be described. The following formula is used for calculation of wind load.

Here, Pw is the wind load (N / m ² ), V is the design wind speed, h is the ground height of the pressure receiving portion, C is the wind force coefficient, and γ is the fill factor.

  Wind load is used for analysis of wall joints. The wall connection is set to be 4.0 m in the horizontal direction and 4.0 m in the vertical direction. The allowable strength of the clamp for the wall connection is 315 kg, and the safety factor is expected to be 1.3, for example.

  The load applied to one wall connection is wind load × (4.0 m × 4.0 m). If this value is smaller than the allowable strength of the wall joint clamp that allows for a safety factor, “wall joint OK” is displayed on the client screen, while if it is larger, “wall joint NG” is displayed on the client screen.

  Next, a method for analyzing the bending strength of the scaffold plate will be described. As shown in FIG. 23 (a), the scaffolding plate 100 is installed on the colobashi pipe 101, so that the fulcrum of the scaffolding plate 100 becomes a contact point with the colobashi pipe 101. Therefore, the distance between the fulcrums of the scaffolding plate 100 is equal to the distance between the colobasi pipes 101. The distance between the fulcrums used in the calculation is the maximum value for the entire temporary scaffold. The weight of the scaffolding plate 100 acts on the scaffolding plate 100 as an evenly distributed load, and the weight of the worker and the transported material acts as the concentrated load P.

  Maximum bending stress can be obtained based on the concept of both-end support beams. If this bending stress is smaller than the allowable bending stress that allows for a safety factor, “scaffold plate OK” is displayed on the client screen, while if larger, “scaffold plate NG” is displayed on the client screen.

  Next, a method for analyzing the bending strength of the colobashi pipe 101 will be described. As shown in FIG. 23 (b), since the colobasi pipe 101 is installed on the cloth pipe 102, the fulcrum of the colobasi pipe 101 becomes the cloth pipe 102, and the distance between the fulcrums is equal to the distance between the cloth pipes 102. . The distance between the fulcrums used in the calculation is the maximum value for the entire temporary scaffold. The weight of the collaborative pipe 101 acts on the collaborative pipe 101 as an evenly distributed load, and the weight of workers and transported goods and the weight of the scaffolding plate act as the concentrated load P.

  Maximum bending stress can be obtained based on the concept of both-end support beams. If this bending stress is smaller than the allowable bending stress that allows for a safety factor, "Collabi pipe OK" is displayed on the client screen, while if it is larger, "Collabi pipe NG" is displayed on the client screen.

  Next, a method for analyzing the bending strength of the fabric pipe 102 will be described. As shown in FIG. 23 (c), since the fabric pipe 102 is fixed to the construction pipe 103 with a clamp, the fulcrum of the fabric pipe 102 becomes the construction pipe 103, and the distance between the fulcrum is the construction pipe. It is equal to the interval of 103. The distance between the fulcrums used in the calculation is the maximum value for the entire temporary scaffold. The cloth pipe 102 is subjected to the weight of the cloth pipe 102 as an evenly distributed load, and the weight of the worker and the transported object, the weight of the scaffolding plate, and the weight of the colobashi pipe 101 as the concentrated load P.

  Maximum bending stress can be obtained based on the concept of both-end support beams. If this bending stress is smaller than the allowable bending stress that allows for a safety factor, “cloth pipe OK” is displayed on the client screen, while if it is larger, “cloth pipe NG” is displayed on the client screen.

  The temporary scaffold design support system 1 performs structural analysis as described above, and then transmits the structural analysis to the computers of the clients A to D that have been requested. The analysis results are displayed on the computers of the clients A to D.

  Next, a processing procedure by the estimation processing unit 12 will be described. The estimation processing unit 12 selects a corresponding scaffold unit from the scaffold units stored in advance in the scaffold unit database 20 based on various information input by the information input unit 11, and constructs the selected scaffold unit. The necessary amount of material and the quantity of the material are obtained, and the estimated amount is obtained by integrating the obtained material and the quantity of the material, the unit price of each material in the material unit price database 21 and the yield of each material in the yield database 22. It is configured to calculate.

  Next, the calculation procedure of the estimated amount of the tower kumi scaffold will be described.

  The above-described scaffold unit is stored in the scaffold unit database 20 together with the materials and the quantity required for constructing the scaffold unit (scaffold unit storage step). Further, the unit price of each material shown in FIG. 12 is stored in the material unit price database 21 (material unit price storage step). Further, the yield of each material shown in FIG. 13 is stored in the yield database 22 (a yield storage step). Further, the scaffold type drawing database 24 stores a schematic drawing of the scaffold. The unit price of each material and the yield of each material can be stored as an arbitrary value after the clients A to D access the temporary scaffold design support system 1, and the owner of the temporary scaffold design support system 1 previously stores the value. The data can be stored and changed by the clients A to D.

  Assume that information related to a temporary scaffold is input as shown in FIG. This is input by the clients A to D (information input step).

  As described above, all the materials constituting the tower cruciform scaffold and their quantities are obtained. Then, the estimation processing unit 12 multiplies the quantity of each material by the unit price stored in the material unit price database 21 and accumulates these to obtain the entire material cost. Further, the estimation processing means 12 obtains a partial labor cost based on the quantity of each material, the yield stored in the yield database 22 and the artificial unit price, and accumulates these to calculate the total labor cost. Get. As a calculation method, for example, the method disclosed in Japanese Patent No. 3546344 can be used. The above is the processing step.

  In addition, it is also possible to take in the cost required for curing as necessary and the cost required to use heavy machinery from the basic database server 4 and add them to the estimated amount.

  Each step is executed as described above. It is a temporary scaffold design support program installed in the temporary scaffold design support system 1 that makes these steps executable, and this program is recorded on a computer-readable recording medium such as a CD-ROM and provided. be able to.

  The material cost and labor cost obtained by the estimation processing means 12 are processed by the display processing means 13 so as to be in the construction schedule form shown in FIG. This is transmitted to the computers of the clients A to D and can be browsed by the user.

  The horizontal equipment platform scaffold is basically the same as that of the tower platform scaffold.

  In the case of a horizontal type equipment scaffold, a cloth pipe member is obtained as shown in FIG. LA in FIG. 25 is the length of the scaffold, and is a length obtained by adding 2 m to the device length L6.50 m in FIG.

  Since 7.5 m <LA in FIG. 25, one 6.0 m single pipe is used. Furthermore, since the value obtained by subtracting 6.0 from 8.5 is 2.5 (NOKO1A), this corresponds to the case of 2.0 <NOKO1A ≧ 2.5, and a single 2.5 m single pipe is used. To do. One joint is used. In other words, one 6.0 m single pipe, one 2.5 m single pipe, and one joint are used for one row of cloth pipes. The number of places where the cloth pipes are provided is automatically set according to the size of the horizontal tank, and in this embodiment, there are 20 rows. Therefore, the number obtained by multiplying these by 20 is the cloth pipe member (not shown).

  Further, in the case of a horizontal type equipment scaffold, as shown in FIG. 26, the number of scaffold boards including a baseboard is obtained. Since 4.0 m <LA, two 400 mm scaffold plates (A400) are used, and the value obtained by subtracting 400 mm × 2 from LA8.5 is 0.5, so 0 <NOKO1C ≧ 1.0 In this case, one 100 mm scaffold plate (A100) is used.

  In this way, all materials and their quantities that constitute the horizontal equipment scaffold are obtained. Then, the estimation processing means 12 obtains material costs and labor costs. The material cost and labor cost obtained by the estimation processing means 12 are processed by the display processing means 13 so as to be in the construction schedule form shown in FIG. 24 and transmitted to the computers of the clients A to D.

  For the suspension scaffold, the length of the parent pipe is obtained as follows in the case of a four-sided passage without the fireproof coating shown in FIG. That is, the length of the parent pipe is obtained by adding 1 m + 1 m, which is an extension passage to both sides, to the length of RACK (the length in the longitudinal direction of the suspension scaffold) RL (shown in FIG. 17). In the case of both-side passage, one-side passage, and no passage, the length obtained by adding 1 m to RL is the length of the parent pipe.

  Further, the width of the scaffold in FIG. 10 is a length obtained by adding 0.5 m to the width of the RACK in FIG.

  The number of rows of parent pipes in the four-sided passage and the two-sided passage is the number obtained by dividing the RACK width by the interval between the parent pipes, rounding off to the first decimal place, and adding a constant 3. In the case of a one-side passage, a value obtained by adding a constant 2 is used, and in the case where there is no passage, a value obtained by adding a constant 1 is used.

  When the fireproof coating is provided, the length of the parent pipe and the scaffold width are the same as those without the fireproof coating. The number of rows of the parent pipe is a value obtained by subtracting 2 from the number without the fireproof coating.

  In the case with fireproof coating, the length of the parent pipe between the main pillars is a value obtained by subtracting 0.6 m (0.3 m + 0.3 m) when the distance between the main pillars is 8.0 m. The number of spans between the main pillars is a value obtained by rounding off the value obtained by dividing the length of RACK by the distance between the main pillars. The number of main pillars is a value obtained by doubling the number of spans between main pillars and adding two more. The number of locations of the parent pipe passing between the main pillars is a value obtained by doubling the number of spans between the main pillars.

  Then, the members used for one row of the parent pipe and the quantity thereof are calculated in the same manner as in the case of the building of the tower kink scaffold, and the number of rows is multiplied by this to calculate the quantity of the whole parent pipe. In addition, the quantity of scaffolding plates is calculated like a horizontal type equipment scaffold.

  In this way, all the materials constituting the suspension scaffold and their quantities are obtained. Then, the estimation processing means 12 obtains material costs and labor costs. The material cost and labor cost obtained by the estimation processing means 12 are processed by the display processing means 13 so as to be in the construction schedule form shown in FIG. 24 and transmitted to the computers of the clients A to D.

  The calculated estimated amount is stored in the user data folder 23 for each of the clients A to D, and can be freely viewed and corrected if the clients A to D are in an environment where connection to the Internet is possible. .

  As described above, according to the temporary scaffold design support system 1 according to this embodiment, the material of the scaffold unit selected by the user is obtained from the scaffold unit database 20 and stored in the allowable strength storage database 25. The structural analysis of the temporary scaffold is performed on the basis of the allowable strength.

  Thereby, even if it is a large-scale temporary scaffold, structural analysis can be performed easily and the temporary scaffold which ensured safety | security can be easily designed, eliminating a waste of material and reducing a construction cost.

  In addition, by conducting structural analysis based on weather conditions, it is possible to grasp in advance the weather conditions that can ensure the safety of the temporary scaffolding and use it for the judgment of evacuation of workers, etc. Can be increased.

  In particular, in this embodiment, the user can input an arbitrary wind speed from the input screen. By performing structural calculations while changing the wind speed, it is possible to easily find out the conditions that the temporary scaffold can withstand.

  In addition, since structural analysis is performed based on the distance between the materials of the temporary scaffolding, the load capacity and the allowable strength, the reliability of the analysis results can be further improved, and the safety of the temporary scaffolding is sufficiently secured. can do.

  Further, a plurality of types of scaffold units constituting the temporary scaffold are stored in the scaffold unit database 20 together with the materials necessary for constructing the scaffold unit and the quantity of the materials, and the temporary scaffolds input from the clients AD. Based on the information, the corresponding scaffold unit is selected to obtain the necessary material and the quantity of the material, and the unit price and yield of each material can be added to this to calculate the estimated amount.

  Therefore, even if it is not an expert, the kind and quantity of materials which are required for temporary scaffold construction can be estimated correctly, and the estimated amount of construction expenses can be calculated quickly and accurately.

  Since the temporary scaffold design support system 1 is configured by the SaaS providing server, the estimated amount can be calculated, corrected, and viewed from anywhere as long as the Internet connection is possible, which is highly convenient.

  Further, the unit price of the material unit price database 21 and the yield of the yield database 22 can be easily changed by the user, so an estimated amount suitable for each user can be easily obtained.

  In the temporary scaffold design support system 1 according to the above-described embodiment, the estimated amount of the three types of temporary scaffolds can be calculated, but the number of types of scaffolds that can be estimated can be increased.

  Moreover, the amount of deflection of, for example, a scaffold plate, a colobashi pipe, and a cloth pipe can be obtained by structural analysis.

  In addition, after the construction of the temporary scaffold, the wind speed detected by the anemometer at the site may be input to the scaffold design support system in real time. Thereby, structural analysis can be performed based on the current wind speed, and the worker can take an action to ensure safety before the temporary scaffold is in a dangerous state.

  In addition, after the construction of the temporary scaffolding, a device for detecting the amount of snowfall and the amount of rainfall at the site may be provided so that the amount of snowfall and the amount of rainfall can be input to the scaffold design support system in real time. Thereby, structural analysis can be performed based on the current snowfall and rainfall.

  In addition, when the temporary scaffold is a kaku scaffold, the temporary scaffold may be assembled on a gantry, for example. In this case, as described above, the position of the building and the load in the vertical direction per building are obtained as analysis results, so it is possible to obtain where and how much load is applied to the gantry. . For example, if the building site is located in a part with a low load resistance such as a part other than the beam of the gantry, it is determined that it is not preferable to assemble the frame scaffold on the gantry (determine NG) Can do. In addition, even when the load per building site is larger than the allowable load of the portion where the building site is located in the gantry, it can be determined that it is not preferable to assemble the scaffold on the gantry. . On the other hand, the position of the building is a part with high load resistance such as on the beam of the frame, and the load per building is smaller than the allowable load of the part where the building is located on the frame In this case, it can be determined that it is possible to assemble the frame scaffold on the gantry (determined as OK). By inputting the dimensions and allowable loads of members constituting the gantry, the deflection amount of the gantry can be obtained.

  In addition, when the temporary scaffold is a suspended scaffold, it may be assembled so as to be suspended from a gantry. Also in this case, as described above, the portion to which the load is applied and the load of the portion are obtained as the analysis results, so it is possible to obtain where and how much load is applied to the gantry. For example, a design in which a load is applied to a portion having a low load resistance such as a portion other than the beam of the gantry can be determined to be unpreferable to assemble the suspension scaffold on the gantry (determine NG). Further, even when the load applied to the gantry is larger than the allowable load of the portion where the load is applied to the gantry, it can be determined that it is not preferable to assemble a suspension scaffold on the gantry. On the other hand, if the part where the load is applied is a part with a high load resistance such as a beam of the gantry and the load is smaller than the allowable load of the gantry, the suspension scaffold can be assembled on the gantry. It can be determined that it is present (determined as OK).

  In addition, for example, when a soundproof panel is attached to the temporary scaffold, the wind load applied to the scaffold becomes large. In this case, if the temporary scaffold is assembled on the gantry, the load applied to the gantry increases. However, as described above, the load applied to each point by the wind load can be obtained in advance, so the temporary scaffold is assembled to the gantry. It can also be determined whether or not. Further, it is possible to obtain the deflection of the gantry generated by the wind load.

  As described above, the present invention can be applied to, for example, calculating an estimated amount of expenses required for scaffolding work such as a tower frame scaffold.

DESCRIPTION OF SYMBOLS 1 Temporary scaffolding design support system 2 Web server 3 Core application server 4 Core database server 10 Scaffold classification selection means 11 Information input means 12 Estimate processing means 13 Display processing means 14 Structure analysis processing means 20 Scaffolding unit database 21 Material unit price database 22 Pedestrian database 23 User Database 24 Scaffold Type Drawing Database 25 Allowable Strength Storage Database

Claims (3)

In the temporary scaffold design support system used when designing temporary scaffolds for various buildings,
A scaffold unit database for storing a plurality of types of scaffold units constituting a temporary scaffold together with materials necessary to construct the scaffold unit and the quantity of the materials;
An information input means for the user to enter information about the temporary scaffold,
An allowable strength storage database for storing the allowable strength of the material,
The scaffold unit corresponding to the building is selected from the scaffold units stored in the scaffold unit database based on the information regarding the temporary scaffold input by the information input means, and the structure of the selected scaffold unit is obtained. A temporary scaffold, and a processing means configured to perform a structural analysis of the temporary scaffold based on the allowable strength of the material stored in the allowable strength storage database. Scaffolding design support system. In the temporary scaffold design support system according to claim 1,
The information input means is configured to be able to input weather conditions,
The temporary scaffolding design support system, wherein the processing means is configured to perform a structural analysis based on weather conditions input to the information input means. In the temporary scaffolding design support system according to claim 1 or 2,
The scaffold unit database stores the distances between materials constituting the scaffold unit,
The information input means is configured to be capable of inputting a loading load on the scaffold plate,
The processing means is based on the distance between the materials stored in the scaffold unit database, the loaded load input in the information input means, and the allowable strength of the material stored in the allowable strength storage database. Temporary scaffolding design support system, which is configured to perform structural analysis.

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