JP5804645B2 - Concrete placement support system and program - Google Patents

Description

  The present invention relates to a concrete placement support system and program, and more particularly, to a system and program for supporting a construction method in which a placement space is divided into a plurality of pieces and concrete is placed while being sequentially piled up.

  When building a concrete structure, it is not placed in the entire space to be filled with concrete (for example, a space to be used as a load-bearing wall or a load-bearing member. The space is divided into a plurality of stratified work zones (the minimum placement unit that can be finished with a single concrete placement). First, concrete is placed sequentially in the lower work area, and the concrete is transferred to the upper work area after the lower work area is placed. In some cases, a construction method (hereinafter referred to as a construction method) is used. The laying method has the advantage of reducing the load applied to the concrete formwork, etc., but the settling of the lower concrete starts over time after the previous driving, and it is not integrated with the upper concrete to be driven later. There is a possibility that a discontinuous surface (cold joint) is formed in the overlapped portion. For this reason, in the stacking method, in order to ensure the quality of the concrete after placing, it is necessary to properly set up the construction design images such as construction classification and placement order before construction, so as not to cause construction failures such as cold joints, Therefore, it is required to record the placement time and other concrete construction information for each work section to manage the stacking time at each work section boundary.

  Conventionally, development of a system for managing concrete construction information by using a computer has been advanced. For example, graphic data of a concrete structure (for example, two-dimensional or three-dimensional CAD design drawings) can be obtained in one step. Subdivision into the smallest unit (work zone) where concrete can be placed, and registration of construction information such as concrete material (type), production date, transport date, construction date, placement start time, finish time, etc., placed for each unit A quality information management system has been proposed (see Patent Document 1). In addition, concrete manufacturing data, test data, construction data, etc. are registered for each unit area (work zone) of the structure, and the data is displayed on the screen for each unit area to investigate the cause of the problem area. A construction information management processing program for facilitating the proposal has been proposed (see Patent Document 2). Furthermore, not only the construction stage management but also the strike design method and the strike design support program for simulating so that the layout method and order of the pile method will be the appropriate pile time in the planning stage before concrete placement. Has been proposed (see Patent Document 3).

  FIG. 6 shows a concrete striking design method disclosed in Patent Document 3. The hitting design method disclosed in Patent Document 3 will be described to the extent necessary for understanding the present invention with reference to FIG. In the illustrated example, the placement space 1 of the concrete structure surrounded by the formwork 50 is divided into a plurality of sections 2a to 2e indicated by broken lines in the figure, and the inside of the structure 51 (excluding the dead space 51a). 2 shows a case in which concrete C is placed in each of the sections 2a to 2e by two concrete mixer trucks 54 and a concrete pump truck 53 that are placed on the road. Each section 2a to 2e is further divided into a plurality of work sections in the vertical direction. A fixed supply line 55 is extended from the pump car 53 to the upper part of each section, and a movable supply line 56 attached to the tip of each section 2 is provided in each section. Concrete C is driven into the work area in layers. The fixed line 55 in the illustrated example is constituted by a series connection of a plurality of main pipelines 57, side pipelines 58, and side-to-side pipelines 59, and the tips of the pipelines are fixed points a to c and d to d on the section 2a. The movable line 56 is attached while changing to f (or fixed points g to j on the section 2b), and the concrete C is rotated while the movable line 56 is rotated around each fixed point a to f (or fixed points g to j). To cast.

The striking design method shown in FIG. 6 includes a time required for replacement of the supply lines 55 and 56 for each of the sections 2a and 2b (replacement time), and a lower layer in each of the sections 2a and 2b via the supply lines 55 and 56. The time required for placing concrete C in the work area (placement time) is calculated. In addition, with respect to the placement concrete C, an allowable time (permission allowance time) that does not cause a cold joint or the like in the overlapped portion is obtained, and the line replacement time and the concrete placement time when the lower section of each section 2a, 2b is completed. And the permissible time for stacking are compared, and the hit design image (work classification) satisfying the equation (1) is made appropriate, and the hit design image not satisfying is made unsuitable. If it is determined to be unsuitable, the construction division of the placement space 1 is reviewed, and for example, the section 2a is divided as shown by the one-dot chain line in the figure (the section including the fixed points a to c and the fixed points d to f are included). 2) and then recalculate the placement time and replacement time for each subdivision of each section after division and compare it with the allowable stacking time to see if the revised plan is appropriate. to decide. By repeating the process division simulation until the expression (1) is satisfied, it is possible to obtain an appropriate hit design image that does not cause a cold joint or the like.
Total of (placement time + replacement time) for each work area ≤ Allowable stacking time (1)

JP 2009-157739 A JP 2010-203110 A JP 2011-006881 A

Edited by Architectural Institute of Japan “Standard Building Construction Specification / Explanation JASS5 Reinforced Concrete Work” published in March 2009

  If concrete is placed according to the plan obtained by the drawing design method shown in FIG. 6, it can be expected that construction defects such as cold joints will be eliminated. However, it may not be possible to place as planned at the actual site. For example, if the shipment pitch from the ready-con factory or the transportation time does not proceed as planned for some reason, the placement time for each work area in FIG. 6 becomes long, and the stacking time exceeds the allowable time. Further, the planning method of FIG. 6 does not reflect the conditions on the day of construction (the day of placement), and there is a problem that the accuracy of the plan may be lowered depending on the weather conditions and concrete construction conditions on the day. In other words, although the quality of concrete is standardized, it is not constant because it uses natural resources, and the quality gradually changes immediately after it is manufactured at the ready-mixed concrete factory. In addition, the quality may vary depending on the weather conditions (temperature and humidity) at the time of installation. Therefore, if the conditions on the day are significantly different from the pre-estimated conditions, rational placement cannot be performed, and construction failures cannot be completely eliminated even if the installation is performed as planned. In order to ensure the high quality of concrete structures, it is effective to perform construction while reviewing the plan as appropriate according to the situation on the day of construction.

  Therefore, an object of the present invention is to provide a system and a program that support the update of the hit design image according to the situation on the day of construction.

  Referring to the block diagram of FIG. 1, the concrete placement support system according to the present invention is a model Ig of a concrete placement space 1 having a predetermined volume V1 (see FIG. 3A) and an hourly placement amount F of concrete C. And storage means 11 for storing the allowable stacking time P, the model Ig is divided into ordered sections 2a, 2b, 2c,..., And the estimated placement time Ts of each section and the estimated stacking time Gs of each section boundary are obtained. Ordered work zones 3a, 3b, 3c (in FIG. 3 (C)) in which the assumed stacking time Gs of each section boundary is within the allowable time P by repeating the calculation cycle (see FIG. 3 (B)). The work section setting means 23 for setting the model Sg), and detection means for detecting the placement time Tr of each work section and the stacking time Gr of each work section boundary when placing concrete in the placement space 1 according to the ordered work section. 31, Detecting means 33 for detecting the temperature and other weather conditions of the placement space 1 at the time of placing the concrete, an allowable time updating means 35 for updating the storage means 11 by obtaining the allowable stacking time P of the concrete C from the weather conditions, and detecting When the stacking time Gr exceeds the allowable time P, the ordered sections 3m, 3n (see the unplaced section model Rg in FIG. 3 (D)) of the concrete unplaced portion of the model Ig are repeated by the above cycle. The work area updating means 24 for updating is provided.

  Further, referring to the block diagram of FIG. 1 and the flowchart of FIG. 2, the concrete placement support program according to the present invention uses a computer 10 for supporting concrete placement in a placement space 1 having a predetermined volume V1 and the concrete C. Storage means 11 (step S101 in FIG. 2) for storing the placement space model Ig (see FIG. 3A), the hourly placement possible amount F, and the allowable stacking time P, and the model Ig into the ordered sections 2a and 2b. 2c... Is divided into 2c... And the cycle (see FIG. 3B) for calculating the estimated placement time Ts for each partition and the estimated overlay time Gs for each partition boundary is repeated. , Which is an ordering zone 3a, 3b, 3c,... (See steps S102 to S104, placement zone model Sg in FIG. 3C), Detection means 31 (steps S105 to S106) for detecting the placement time Tr of each work zone and the stacking time Gr of each work zone when placing concrete in the placement space 1 according to the ordered work zone, Detecting means 33 (step S107) for detecting the temperature and other weather conditions of the installation space 1, an allowable time updating means 35 for updating the storage means 11 by obtaining the allowable stacking time P of the concrete C from the weather conditions (step S109), In addition, when the detected overlay time Gr exceeds the permissible time P, the work section update means 24 (steps S113 to S115, which updates the ordered work sections 3m, 3n,... This is to function as an unplaced work area model Rg in FIG.

  Preferably, a detection means 32 for detecting the transport time of the concrete C from the factory and other construction conditions at the time of placing the concrete is provided, and the allowable time P for placing the concrete C is obtained from the weather conditions and the construction conditions by the allowable time update means 35. The storage means 11 is updated (steps S107 and S109 in FIG. 2). The allowable time update means 35 can include a prediction formula 36 for predicting the allowable stacking time P from the weather conditions, or a prediction formula 36 for predicting the allowable stacking time from the weather conditions and the construction conditions. More preferably, a placement amount updating means 34 (step S110 in FIG. 2) for updating the storage means 11 by obtaining the hourly placement amount F of concrete C from the placement time Tr detected by the detection means 31 is provided.

  The concrete placing support system and program according to the present invention are placed on the basis of the estimated hourly placing amount F of concrete C and the allowable stacking time P in the planning stage before placing (steps S101 to S105 in FIG. 2). The model Ig of the installation space 1 is divided into a plurality of sections, and set-up placing construction zones 3a, 3b, 3c... (Shot design drawings) in which the assumed stacking time Gs of each section boundary is within the allowable time P are set. In the construction stage according to the ordered work zone (step design drawing) (steps S106 to S116 in FIG. 2), the stacking allowable time P is updated according to the weather conditions of the placement space 1, and the stacking time of each work zone boundary is updated. When the Gr is detected and the allowable time P is exceeded, the ordered sections 3m, 3n (unplaced sections) of the concrete unplaced portion of the placement space model Ig are updated, so that the following advantageous effects are obtained. Unlikely to.

(B) The allowable stacking time P is updated according to the weather conditions on the day of construction, and the 3m, 3n ... (unplaced work zones) with the order of the concrete non-placed parts set before construction are piled up on the day. By updating based on the allowable time P, it is possible to review the hit design image according to the conditions on the day of construction.
(B) In addition, since the situation on the day of construction can be reflected in the hitting design drawing in real time and the hitting design drawing after the afternoon can be reviewed, for example, according to the weather conditions in the morning, construction defects such as cold joints do not occur. Highly accurate concrete placement can be realized.
(C) Updating the permissible stacking time P in accordance with not only the weather conditions but also the concrete transport time and other construction conditions on the day of construction will further improve the accuracy of the striking design and further reduce the occurrence of construction defects. be able to.
(D) Along with the update of the permissible stacking time P, if the hourly placement possible amount F of concrete C is updated from the placement time Tr detected on the day of construction, the placement design image is further in accordance with the construction conditions. Improves accuracy and secures a higher level of concrete quality.
(E) It is easy to combine with the conventional placement information management system that collects the weather conditions and construction conditions, etc. on the day of construction. By reusing it for reviewing the hitting design drawing, it is possible to create a hitting design drawing that reflects the past and the actual performance of the actual plant that was collected in the past.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments and examples for carrying out the present invention will be described with reference to the accompanying drawings.
These are an example of the block diagram of the concrete placement assistance system by this invention. These are an example of the flowchart of the concrete placement assistance program by this invention. These are explanatory drawings of the method of dividing the model Ig of the concrete placement space 1 and setting a plurality of ordered sections 3. These are explanatory drawings of the method of detecting the placement time Tr of each work section and the stacking time Gr of the work section boundary at the time of concrete placement. These are explanatory drawings of a prediction formula for predicting the allowable stacking time from weather conditions. These are explanatory drawings of an example of the concrete placement design drawing method by the conventional pile construction method.

  FIG. 1 shows an example of a block diagram of a concrete placing support system according to the present invention. The system of the illustrated example has a computer 10 connected to an input device 13 (keyboard, mouse, etc.) and an output device 15 (display printer, etc.), and a concrete structure placing space in the storage means 11 of the computer 10. A planning database 20 is provided for storing one model Ig and creating a striking design image Sg by a stacking method for the placing space 1. The placement space model Ig is, for example, a two-dimensional or three-dimensional CAD design drawing that represents a space such as a load-bearing wall or a load-bearing column that is to be filled with concrete of a structure, and includes information on the volume V1 of the placement space 1. Shall be. Such a model Ig can be input to the computer 10 from the input device 13 through the input means 12 together with data registered in the planning database 20, for example.

  The planning database 20 of the storage means 11 includes at least an hourly placing amount F of concrete C that can be poured into the placing space 1 per unit time, and a pile that does not cause a cold joint or the like even if the concrete C is piled. The allowable time P is registered. The computer 10 divides the placement space model Ig into the ordered construction zones 3a, 3b, 3c,... Based on the planning database 20 and sets the construction design setting image Sg (placement construction zone model Sg). Is provided. If necessary, the replacement time E necessary for replacement of the line for supplying the concrete C to the placement space 1 is registered in the planning database 20, and the replacement time E is taken into consideration as in the case of FIG. It is possible to create a hit design image Sg. The created hitting design image Sg is stored in the storage means 11, and a management database 30 for recording quality control data at the time of placing concrete in the setting space 1 according to the hitting design image Sg is provided in the storage means 11. . The contents of the hit design image Sg and the management database 30 can be appropriately output to the output device 15 via the output means 14 for use in placing management. The input means 12, the work zone setting means 23, and the output means 13 are programs built in the computer 10, respectively.

  In the illustrated system, in addition to the computer 10, a filling detection sensor 40a for detecting the filling of the concrete C in each of the work sections 3a, 3b, 3c... When placing concrete into the placement space 1 according to the placement design image Sg. , 40b, 40c, ..., a thermometer 8 for measuring the temperature around or inside the placement space 1 at the time of placing concrete, and an input device 7 for inputting the transport time of the concrete C from the factory. Yes. The transport time input device 7 is a portable receiver or information terminal (PDA) that receives and inputs the shipping time, unloading disclosure time, unloading completion time, etc. from the ready-mix factory or the concrete transport vehicle to the computer 10, for example. be able to. Details of the filling detection sensor 40 will be described later.

  In the illustrated system, the thermometer 8 is connected to the detection means 33 of the computer 10, and the input device 7 is connected to the detection means 32 of the computer 10. The detection means 33 detects the weather condition of the placement space 1 from the measured value of the thermometer 8, and the detection means 32 inputs the transport time from the input device 7 to detect the concrete C construction condition. Further, the filling detection sensor 40 is connected to the detection means 31 of the computer 10, and the concrete placement start signal and the filling detection signal for each of the work sections 3a, 3b, 3c,. The installation time Tr and the stacking time Gr at each work area boundary are detected.

  The weather condition detection means 33, the construction condition detection means 32, and the detection means 31 are also programs built in the computer 10, respectively. The weather condition detection means 33 suffices to be able to detect at least the air temperature. However, as shown in the illustrated example, the hygrometer 9 may be connected and the weather condition including humidity and the like may be included in the detection target. The construction condition detection means 32 is sufficient if it can detect at least the transport time of the concrete C from the factory to the placement site, but the construction conditions including the shipment pitch of the concrete C and the like may be included in the detection target. The weather conditions and construction conditions detected by the detection means 33 and 32, and the placement time Tr and overlay time Gr detected by the detection means 31 are stored in the management database 30 of the storage means 11 in quality control data at the time of concrete placement. Recorded as and provided for placement management.

  Furthermore, the computer 10 in the illustrated example obtains the allowable stacking time P of the concrete C from the weather conditions and construction conditions detected by the detecting means 33 and 32 as the built-in program and updates the planning database 20 in the storage means 11. When the concrete is placed in the placement space 1 in accordance with the update means 35 and the placement design image Sg, the ordered construction zones 3m, 3n, ... (unplaced construction zone model Rg) of the concrete placement portion of the placement design drawing Sg And a work area updating means 24 for reviewing and updating according to the conditions on the day of construction.

  FIG. 2 is a flowchart of the program of the present invention that supports the creation of the concrete C placing design image Sg (placed construction zone model Sg) for the placement space 1 by the computer 10 of FIG. 1 and the review according to the situation on the day of construction. Show. Hereinafter, the functions of the built-in programs of the computer 10 will be described with reference to the flowchart of FIG. First, in step S101, the hourly placement possible amount F of concrete C required for creating the placement space model Ig of the above-described predetermined volume V1 of the concrete structure and the placement design image Sg of the placement space 1 and the permissible placement The time P (planning database 20) is read into the computer 10 and set in the storage means 11. Next, in step S102, the space model Ig is input to the work area setting means 23 to create a hit design image Sg (placed work area model Sg).

  The work area setting means 23 in FIG. 1 divides the space model Ig into ordered sections 2a, 2b, 2c..., The placement time Ts assumed in each section 2a, 2b, 2c. A calculation means 22 for calculating the overlap time Gs assumed at the partition boundary is included. Step S102 in FIG. 2 shows a process of dividing the space model Ig of the predetermined volume V1 into a plurality of ordered sections 2a, 2b, 2c... Of the predetermined partition volume V2 by the dividing means 21 (see FIG. 3A). ). In step S103, the calculation means 22 calculates an estimated time Ts (= V2 / F) necessary for placing each of the sections 2a, 2b, 2c,... It calculates sequentially, and calculates the stacking time Gs (= time from the placement end of the lower section 2a to the start of placement of the upper section 2e) assumed at the boundary of the adjacent sections (for example, the boundary between the sections 2a and 2e). The process is shown (see FIG. 3B).

  In step S103, the assumed stacking time Gs of the adjacent partition boundary (for example, the boundary between the partition 2a and the partition 2e) is determined between each adjacent partition (lower layer partition 2a) and the other partition (upper layer partition 2e). It can be calculated by sequentially summing the expected placement times Ts of the sections (sections 2b, 2c, 2d) (assumed stacking time Gs = ΣTs). Further, when considering the replacement time E of the concrete supply line, similarly to the case of FIG. 6, in step S103, the estimated placement time Ts and the line replacement time E in each section from one of the adjacent sections to the other. Are sequentially summed up to calculate the estimated stacking time Gs of adjacent partition boundaries (assumed stacking time Gs = Σ (Ts + E)).

  In step S104, the work zone setting unit 23 determines whether or not the assumed stacking time Gs of each partition boundary is within the range of the allowable stacking time P, and the estimated stacking time Gs of any partition boundary is determined. When the allowable time P is exceeded, the process returns to step S102, and the cycle of steps S102 to S104 is repeated while changing the partition division, so that the assumed overlapping time Gs of each partition boundary is within the allowable time P range. To discover. When such a division is found, the process proceeds to step S105, and the ordered work zones 3a, 3b, 3c,... Are set in the storage means 11 as the hit design image Sg (placed work zone model Sg).

  FIG. 3 (A) shows the section division of the model Ig of the placement space 1 to be placed over a plurality of days, and after dividing the whole into large sections 4a to 4d, the inside of each large section 4 is respectively shown. Divided into ordered work zones. First, in step S102, the inside of each large section 4 is divided into ordered small sections (for example, small sections 2a to 2l inside the large section 4a), and then in step S103, each large section 4 is divided as shown in FIG. The estimated placement time Ts of the inner small section of the section 4 (for example, the small sections 2a to 2l) and the stacking time Gs of each small section boundary are calculated. By repeating the cycle of steps S102 to S104 until the assumed stacking time Gs of the inner partition boundary of each large partition 4 is within the range of the allowable time P, each large partition as shown in FIG. 3C in step S105. Ordered work zones (for example, ordered work zones 3a to 3l of the large section 4a) can be set in 4a to 4d, respectively.

  On the day of construction, concrete placement in the placement space 1 is started according to the ordered sections 3a, 3b, 3c,... Of the design plan Sg set in step S105. Steps S <b> 106 to S <b> 116 show placement processing for each work section 3 on the construction day. First, in step S106, while placing concrete C in each work area 3, the above-described detection means 31 detects the concrete placement time Tr of each work area 3 and the stacking time Gr of each work area boundary. In step S107, the detecting means 33 detects the weather condition (curing temperature) of the placement space 1 from the measured value of the thermometer 8, and inputs the transport time from the input device 7 by the detecting means 32 to make the concrete C Detect construction conditions. Further, in step S108, the placement time Tr and overlay time Gr detected by the detection means 31 and the weather conditions and construction conditions detected by the detection means 33 and 32 are recorded in the management database 30 of the storage means 11, respectively. .

  In step S109, the weather condition detected by the detection means 33 in step S107 is input to the allowable time update means 35, and the overlay allowable time P of the concrete C is obtained from the weather conditions on the day of construction, and the planning database 20 in the storage means 11 is obtained. The process of updating is shown. Generally, the setting speed of concrete C decreases in proportion to the outside air temperature. If the temperature is low, the setting time is long, so that the allowable stacking time P can be increased, and if the temperature is high, the setting time is short. P needs to be reduced. As described above, the striking design image Sg is created based on the anticipated stacking allowable time P (step S001). For example, when the temperature on the day of construction is high, the permissible time P is smaller than expected. In accordance with the design image Sg, construction defects such as cold joints may occur. The allowable time update means 35 in FIG. 1 includes, for example, a prediction formula 36 for predicting the allowable stacking time P from the weather conditions, obtains the allowable stacking time P corresponding to the temperature detected on the construction day, and the planning database 20. Update.

  Preferably, the transport time and other construction conditions of the concrete C detected by the detection means 32 together with the weather conditions in step S109 are input to the allowable time update means 35, and the update means 35 updates the concrete C based on both the weather conditions and the construction conditions. The allowable stacking time P is updated. As described above, the quality of the concrete C gradually changes immediately after it is manufactured at the ready-mix factory, and the setting starts immediately after the manufacture. If it is longer, it is necessary to reduce the allowable stacking time P. The allowable stacking time P in step S101 is based on a predetermined transport time, but the transport time on the construction day may vary for some reason, so the stackable allowable time P is updated according to the transport time on the current day. Therefore, it is possible to suppress the occurrence of construction defects such as cold joints. In this case, for example, the prediction formula 36 for predicting the allowable stacking time P from the weather conditions and the construction conditions is included in the allowable time updating means 35, and the allowable stacking time P corresponding to the temperature and the transportation time detected on the construction day is set. In response, the planning database 20 is updated.

  In step S112, it is determined whether or not the stacking time Gr at each work area boundary detected in step S106 is within the allowable stacking time P updated in step S109. If it is within the allowable range, the process proceeds to step S106. Return and continue placing concrete in the next work area 3. For example, in step S112, the stacking time Gr (the time from the placement of the lower construction section 3a to the start of placement of the upper construction section 3e) of the next placement construction section 3 (for example, construction section 3e in FIG. 3C) is calculated. By judging whether or not the stacking time Gr is within the range of the stacking allowable time P, it is possible to prevent the occurrence of construction failure in the next placing work section 3.

  In step S112, when the laying time Gr of the next laying work section 3 is not within the range of the laying allowable time P, the process proceeds to step S113, and the work area update means 24 determines the portion of the design plan Sg where the concrete has not been placed. Ordered work zones 3m, 3n (unplaced work zone model Rg) are updated according to the conditions on the day of construction. The work area updating means 24 in FIG. 1 shares the dividing means 21 and the calculating means 22 with the work area setting means 23. Similar to steps S102 to S104 described above, in step S113, the dividing means 21 causes the space model Ig to be not concrete. The placement portion is divided into a plurality of ordered compartments 2 each having a predetermined compartment volume V2, and the estimated placement time Ts of each compartment 2 (= predetermined compartment volume V2 / hourly possible placement amount F) by the calculation means 22 in step S114. Then, the estimated overlapping time Gs of each adjacent partition boundary is sequentially calculated, and it is determined whether or not the estimated overlapping time Gs of each adjacent partition boundary is within the range of the allowable stacking time P in step S115.

  The work area updating means 24 finds a partition division in which the assumed stacking time Gs falls within the allowable time P by repeating the cycles of steps S113 to S115, and in step S116, the ordered work areas 3m, 3n,. The concrete design non-placed portion is set to update the placement design image Sg (placement zone model Sg) as shown in FIG. The updated striking design image Sg is created based on the estimated striking time Gs on the construction day updated in step S109, and corresponds to the conditions on the construction day. Accordingly, the process returns from step S116 to step S106, and the concrete placement in the placement space 1 is resumed in accordance with the ordered work zones 3m, 3n,... Of the updated design plan Sg. While proceeding rationally, it is possible to expect high-precision concrete placement that does not cause construction defects such as cold joints. The cycle of steps S106 to S113 is repeated while appropriately reviewing the design plan Sg according to the situation on the day of construction. When the placement of all the construction zones 3 is completed, the completion is determined in step S111 and the placement is finished.

  Thus, it is possible to achieve the “system and program for supporting the update of the hit design image according to the situation on the day of construction”, which is the object of the present invention.

  In addition to the allowable time update means 35 described above, the system of FIG. 1 obtains the hourly placement potential F of concrete C from the placement time Tr detected by the detection means 31, and calculates the planning database 20 in the storage means 11. There is provided a placement amount updating means 34 for updating. The concrete placement amount F of the concrete C can be controlled by, for example, a placement speed sent out from a concrete pump car (see FIG. 6), but may vary depending on the blending of the concrete C on the construction day. As described above, not only the assumed stacking time Gs is updated in step S109 according to the situation on the day of construction, but also the hourly placement possible amount F is updated in step S110 of FIG. By reviewing the strike design image Sg according to F and the assumed overlay time Gs, it is possible to improve the accuracy by ensuring that the strike design image Sg further conforms to the conditions on the day of construction, and to ensure a higher level of concrete quality. I can expect.

  FIG. 4 shows an embodiment of the filling detection sensor 40 arranged in each of the work sections 3i, 3j,. As shown in FIG. 4B, each of the detection sensors 40a to 40e in the illustrated example is a combination of a probe including two electrodes 41 and 42 and a wireless device 43, and each of the work sections 3i, 3j,. Whether or not concrete C is filled can be determined by detecting a change in resistance of the probe (between the two electrodes 41 and 42) exposed on the inner surface by the switch 44 of the wireless device 43. The switch 44 of the wireless device 43 is connected to the wireless unit 46, and the wireless unit 46 drives the antenna 48 with the filling signal detected by the switch 44. In this case, for example, by connecting a receiving device (not shown) to the computer 10 in FIG. 1 and receiving a filling signal from the wireless device 43, the detection means 31 places the construction times 3i, 3j,. It is possible to detect the stacking time Gr at the boundary between the Tr and the work sections 3i and 3j.

  The wireless filling detection sensor 40 of FIG. 4 is provided with a probe (two electrodes 41, 42) at the filling detection location in each of the work sections 3i, 3j,. ) Can be used. However, there may be a case where the probe cannot be appropriately arranged at the filling detection location by insertion from the outside of the mold 50, for example, in the lower region of the steel flange. In such a case, for example, a filling detection sensor 40 of a type in which the probe and the wireless device 43 are connected by a relatively long cable is used in combination. For example, the probe is arranged by being attached to the lower region of the reinforcing bar flange, It is possible to connect the probe and the wireless device 43 arranged in a portion not buried in the concrete outside the mold 50 with a cable. By combining the insertion type and the cable type to give flexibility to the location of the probe, it is possible to increase the accuracy of filling detection in each of the work sections 3i, 3j, and improve the concrete quality.

  In the system of FIG. 1, a prediction formula 36 for predicting the allowable stacking time P from the weather conditions or a prediction formula 36 for predicting the allowable stacking time P from the weather conditions and the construction conditions is included in the allowable time update means 35, and FIG. In step S109 of the flowchart, the planning database 20 is updated by obtaining the allowable stacking time P of the concrete C corresponding to the temperature and transport time on the day of construction. However, such a prediction formula 36 is intended for general concrete C, and does not reflect the concrete placement concrete C or the placement environment at the site. An error may occur in P). In order to avoid such an error, the allowable time update means 35 does not always predict the allowable overlapping time P from the constant prediction formula 36 (priority probability distribution), but, for example, a cold joint (discontinuous surface) at the installation site. ) Is measured experimentally and experimentally, and the prediction formula 36 is statistically corrected based on the test results and experimental results (distribution of observation results), and the corrected prediction formula 36 (prior probability distribution) is corrected. It is desirable to predict the allowable stacking time P using a posterior probability distribution that statistically combines the observation result distribution and the observation result distribution.

For example, FIG. 5 (A) shows an example of a prediction formula (prediction graph) 36 showing the relationship between the curing temperature and the allowable laying time P according to the penetration resistance value of general ordinary concrete (see Non-Patent Document 1). ). Although this prediction formula 36 shows the prior probability distribution of the overlaying allowable time P of ordinary concrete according to the measurement value (weather condition) of the thermometer 8 (see the prior probability distribution in FIG. 5B), Differences in the composition and materials used with concrete that is actually used are not considered. Therefore, at the actual site, the penetration resistance test was carried out on the concrete of the mixing and use material of the day, and the relationship between the temperature and the allowable stacking time P for the concrete having the penetration resistance value of a predetermined value (for example, 5 kg / cm ² ). Measure experimentally and experimentally (see the time distribution obtained by the measurement in FIG. 5B). If such a test / experiment can be repeated a sufficient number of times, it is sufficient to predict the allowable stacking time P using the measurement result as it is. There is a limit to the number of times. Therefore, as shown in FIG. 5B, the distribution of experimental and experimental measurement results (distribution of observation results) is statistically calculated based on the Bayes' theorem and the like with respect to the general prediction formula 36 (prior probability distribution). To create a new probability distribution called posterior probability distribution. By using the prediction formula 36 (posterior probability distribution) in which the measurement results on the installation day as shown in FIG. 5B are integrated, the allowable stacking time P reflects the weather conditions and construction conditions on the installation day. Therefore, it is expected that a concrete hitting design image that is generally satisfactory by preventing the occurrence of large errors can be expected.

DESCRIPTION OF SYMBOLS 1 ... Concrete placement space 2 ... Section 3 ... Placing construction area 7 ... Personal digital assistant (PDA)
DESCRIPTION OF SYMBOLS 8 ... Thermometer 9 ... Hygrometer 10 ... Computer 11 ... Storage means 12 ... Input means 13 ... Input device 14 ... Output means 15 ... Output device 20 ... Planning database 21 ... Space dividing means 22 ... Calculation means 23 ... Work area setting means 24 ... Work area update means 30 ... Management database 31 ... Detection means 32 ... Construction condition detection means 33 ... Meteorological condition detection means 34 ... Placed amount update means 35 ... Allowable time update means 36 ... Prediction formula 40 ... Filling detection sensor 41 ... Electrode 42 ... Electrode 43 ... Wireless device 44 ... Switch 45 ... Battery 46 ... Wireless unit 47 ... Battery 48 ... Antenna 50 ... Formwork 51 ... Site 52 ... Entrance / exit 53 ... Concrete pump truck 54 ... Concrete mixer truck 55 ... Fixed supply line 56 ... movable supply line 57 ... main pipeline 58 ... side pipeline 59 ... side-by-side pipeline C ... concrete E ... with Replacement time F: Hourly placement possible amount Gr: Detection stacking time Gs ... Assumed stacking time Ig ... Placing space model P ... Stacking allowance time Rg ... Unplaced construction zone model Sg ... Placing construction zone model Tr ... Detecting placement Installation time Ts ... Estimated placement time V1 ... Space volume V2 ... Partition volume

Claims (9)

A storage means for storing a concrete placement space model of a predetermined volume, an hourly placement amount of concrete, and an allowable stacking time, and dividing the model into ordered sections and dividing the estimated placement time and boundary of each section Construction zone setting means for setting an ordered section where the estimated stacking time of each section boundary is within an allowable time by repeating a cycle for calculating the estimated stacking time, and concrete placement in a placement space according to the ordered section Detection means for detecting the placement time of each work zone and the stacking time of each work area, detection means for detecting the temperature of the placement space and other weather conditions at the time of concrete placement, and permitting of concrete placement from the weather conditions An allowable time updating means for obtaining the time to update the storage means, and when the detected overlay time exceeds the allowable time, the concrete is not placed in the model Concreting support system comprising includes a work area updating means for updating by the repetition of the cycle the ordered work area portion. 2. The system according to claim 1, further comprising a detecting means for detecting a transport time of the concrete from the factory and other construction conditions at the time of placing the concrete, and the allowable time for placing the concrete from the weather conditions and the construction conditions by the allowable time update means. A concrete placement support system that seeks to update storage means. 3. The system according to claim 1 or 2, wherein the allowable time update means includes a prediction formula for predicting an allowable stacking time from weather conditions or a prediction formula for predicting an allowable stacking time from weather conditions and construction conditions. Installation support system. 4. The concrete placing support according to claim 1, further comprising placement amount updating means for obtaining an hourly placement amount of concrete from the placement time detected by the detection means and updating the storage means. system. The system according to any one of claims 1 to 4, wherein the detection means includes a filling detection sensor for detecting concrete filling in each work section, and a placement time from the start of placing concrete to the sensor filling detection for each work section. Concrete placement support system by detecting In order to support concrete placement in a placement space of a predetermined volume, the computer is divided into an ordered section, storage means for storing a concrete placement space model, an hourly placement amount and an allowable stacking time, and the model. The zone setting means for setting the zone with the order in which the estimated stacking time of each partition boundary is within the allowable time by repeating the cycle for calculating the estimated placement time of each partition and the estimated stacking time of each partition boundary, the order Detection means for detecting the placement time of each work zone and the stacking time of each work zone when placing concrete in the placement space according to the attached work zone, detecting the temperature and other weather conditions of the placement space when placing the concrete Detecting means for determining, a permissible time update means for obtaining a permissible time for placing concrete from the weather condition, and updating a storage means, and the detected stapling time Concreting support program to function as a work area updating means for updating by the repetition of the cycle of concrete Not droplet provided portion ordered work area of the model when exceeding containers time. 7. The program according to claim 6, further comprising a computer functioning as a detection means for detecting a transport time from a concrete factory and other construction conditions when the concrete is placed, and the allowable time update means to detect the concrete from the weather conditions and the construction conditions. A concrete placement support program obtained by updating the storage means to obtain the allowable stacking time. The program according to claim 6 or 7, wherein the allowable time update means includes a prediction formula for predicting an allowable stacking time from weather conditions or a prediction formula for predicting an allowable stacking time from weather conditions and construction conditions. Support program. 9. The program according to claim 6, further comprising causing the computer to function as a placement amount updating means for obtaining an hourly placement potential amount of concrete from the placement time detected by the detection means and updating the storage means. A concrete placement support program.