Method, device and system for correcting the position of dowel bars in precast concrete wall panels

Abstract

The present invention relates to the technical field of prefabricated buildings, and provides a method, device, and system for correcting the position of dowels in precast concrete wall panels. The above-mentioned method for correcting the position of dowels in precast concrete wall panels comprises: obtaining the first position information of each grouting sleeve and the second position information of each dowel in each precast concrete wall panel, and establishing a database; obtaining the first position information of each grouting sleeve in the first precast concrete wall panel to be assembled in the database, and determining the first interval range of the first position information; obtaining the second position information of each dowel in the second precast concrete wall panel that has been assembled in the database, and determining the second interval range of the second position information; and determining the position correction target of the dowel based on the second interval range and the first interval range. The above-mentioned method for correcting the position of dowels in precast concrete wall panels improves the efficiency of precast concrete wall panel assembly during construction and reduces the labor intensity and safety risks of construction workers.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated buildings, and in particular to a method, device and system for correcting the position of dowel bars in a precast concrete wall panel. Background Art

[0002] Prefabricated buildings are the development direction of the construction industry. Precast concrete wall panels are representative wall panels of prefabricated buildings. In terms of the installation of prefabricated wall panels, there are currently some technologies and measures. For example, before construction, the building information model (BIM) technology is used to deepen and lay out the wall, and a laser level is used to lay out the lines before installation. In terms of the vertical installation of precast concrete wall panels, auxiliary tools such as revolvable dowel positioning frames and sleeve locators have been studied, and dowel positioning steel plates are used to correct and position the dowels. However, in this method, the dowel positioning size deviation is large, and multiple manual measurements and corrections of the dowel position are required, which affects the construction quality and efficiency, resulting in low construction efficiency of prefabricated buildings and large installation size deviations. Summary of the Invention

[0003] The present invention provides a method, device and system for correcting the position of dowel bars in a precast concrete wall panel, which are used to solve the defect in the prior art that the dowel bar positioning size deviation is large and multiple manual measurements are required, resulting in low construction efficiency.

[0004] The present invention provides a method for correcting the position of inserted rebars in a precast concrete wall panel, comprising: obtaining first position information of each grouting sleeve and second position information of each inserted rebar in each precast concrete wall panel, and establishing a database of grouting sleeve position information and inserted rebar position information; obtaining the first position information of each grouting sleeve in a first precast concrete wall panel to be assembled in the database, and determining a first interval range of the first position information based on a preset program; obtaining the second position information of each inserted rebar in a second precast concrete wall panel that has been assembled in the database, and determining a second interval range of the second position information based on a preset program, wherein the first precast concrete wall panel is assembled on the second precast concrete wall panel; determining a third interval range based on the second interval range and the first interval range, and using the third interval range within the first interval range as a target for correcting the position of the inserted rebar.

[0005] According to a method for correcting the position of dowels in a precast concrete wall panel provided by the present invention, the step of obtaining the first position information of each grouting sleeve in the first precast concrete wall panel to be assembled in the database, and determining the first interval range of the first position information based on a preset program further includes: obtaining the first center point of the lower end surface of the first precast concrete wall panel, and determining the first center point as the first origin; obtaining multiple first feature points in the first position information of each grouting sleeve, calculating the coordinates of each first feature point, and calculating the first center coordinates and diameter of each grouting sleeve based on the coordinates of more than three first feature points; and determining the first interval range with the first center coordinate as the median and the diameter of each grouting sleeve as the interval range, wherein the first interval range includes a first horizontal axis interval range and a first vertical axis interval range.

[0006] According to a method for correcting the position of dowels in a precast concrete wall panel provided by the present invention, the step of obtaining the second position information of each dowel in a second precast concrete wall panel assembled in the database and determining a second interval range of the second position information based on a preset program further includes: obtaining a second center point of the upper end surface of the second precast concrete wall panel and determining the second center point as a second origin; obtaining multiple second feature points in the second position information of the upper end surface of each dowel, calculating the coordinates of each second feature point, and calculating the second center coordinates and diameter of each dowel based on the coordinates of more than three second feature points; and determining the second interval range with the second center coordinate as the median value and the diameter of each dowel as the interval range, wherein the second interval range includes a second horizontal axis interval range and a second vertical axis interval range.

[0007] According to a method for correcting the position of inserted rebars in a precast concrete wall panel provided by the present invention, the step of determining a third interval range based on the second interval range and the first interval range, and taking the third interval range within the first interval range as the target for correcting the position of the inserted rebar further includes: aligning the first origin with the second origin; comparing the second interval range with the first interval range, and when a portion of the value of the second interval range is outside the first interval range, adjusting the second circle center coordinates to obtain third circle center coordinates; and determining the third interval range of the inserted rebar position based on the third circle center coordinates and the diameter of the inserted rebar.

[0008] According to the present invention, a method for correcting the position of inserted rebars in a precast concrete wall panel is provided. The step of comparing the second interval with the first interval, and adjusting the second center coordinate to obtain a third center coordinate when some values ​​of the second interval are outside the first interval; and determining the third interval for the inserted rebar position based on the third center coordinate and the diameter of the inserted rebar further includes: comparing the second interval as a first trial-and-error point with the first interval, and adjusting the second center coordinate to obtain a first third center coordinate when some values ​​of the second interval are outside the first interval; determining a first third interval based on the first third center coordinate and the diameter of the inserted rebar; comparing the first third interval with the first interval, and continuing a cycle of adjusting the inserted rebar center coordinate, determining a third interval, and comparing the third interval with the first interval when some values ​​of the first third interval are outside the first interval; terminating the cycle when the third interval is within the first interval; and using the last third interval obtained before the cycle terminates as the target for the inserted rebar position correction.

[0009] According to a method for correcting the position of dowel bars in a precast concrete wall panel provided by the present invention, the steps of obtaining first position information of each grouting sleeve and second position information of each dowel bar in each precast concrete wall panel and establishing a database of the grouting sleeve position information and dowel bar position information further include: numbering all precast concrete wall panels to be assembled, sequentially numbering the multiple grouting sleeves in each precast concrete wall panel twice, and sequentially numbering the multiple dowel bars in each precast concrete wall panel three times; determining the position information of each grouting sleeve based on the primary number of the precast concrete wall panel, the secondary number of the grouting sleeve in the precast concrete wall panel, and the first position information corresponding to the grouting sleeve; and determining the position information of each dowel bar based on the primary number of the precast concrete wall panel, the tertiary number of the dowel bar in the precast concrete wall panel, and the second position information corresponding to the dowel bar.

[0010] According to a method for correcting the position of dowels in a precast concrete wall panel provided by the present invention, the step of obtaining the first position information of each grouting sleeve in the first precast concrete wall panel to be assembled in the database further includes: obtaining a secondary number of each grouting sleeve in the first precast concrete wall panel to be assembled, and obtaining the first position information of each grouting sleeve in the first precast concrete wall panel to be assembled based on the secondary number.

[0011] According to a method for correcting the position of a precast concrete wall panel insert, the step of obtaining the second position information of each insert in a second precast concrete wall panel already assembled in the database further includes: obtaining a third number of each insert in the second precast concrete wall panel already assembled, and obtaining the second position information of each insert in the second precast concrete wall panel already assembled based on the third number. The present invention also provides an apparatus for performing the above-mentioned method for correcting the position of a precast concrete wall panel insert, characterized by comprising: a position information obtaining component for obtaining first position information of each grouting sleeve and second position information of each insert in all precast concrete wall panels to be assembled; a processor for receiving the first position information of each grouting sleeve in the first precast concrete wall panel to be assembled and the second position information of each insert in the second precast concrete wall panel already assembled, sent by the position information obtaining component, establishing a database of grouting sleeve position information and insert position information, and calculating a first interval range of the first position information and a second interval range of the second position information based on a preset program. When a portion of the value in the second interval is outside the first interval range, it is determined that the insert needs to be corrected.

[0012] The present invention also provides a device for correcting the position of inserted rebar in a precast concrete wall panel, comprising: a first acquisition module for acquiring first position information of each grouting sleeve and second position information of each inserted rebar in each precast concrete wall panel; an establishment module for establishing a database of grouting sleeve position information and inserted rebar position information; a second acquisition module for acquiring the first position information of each grouting sleeve in a first precast concrete wall panel to be assembled in the database; a first determination module for determining a first interval range of the first position information based on a preset program; a third acquisition module for acquiring the second position information of each inserted rebar in a second precast concrete wall panel assembled in the database; a second determination module for determining a second interval range of the second position information based on a preset program, wherein the first precast concrete wall panel is assembled on the second precast concrete wall panel; a third determination module for determining a third interval range based on the second interval range and the first interval range, and taking the third interval range within the first interval range as a target for position correction of the inserted rebar.

[0013] The present invention also provides a system for executing the method for correcting the position of inserted rebars of precast concrete wall panels as described above, comprising: a position information acquisition element for acquiring first position information of each grouting sleeve and second position information of each inserted rebar in all precast concrete wall panels to be assembled; a processor for receiving the first position information of each grouting sleeve in the first precast concrete wall panel to be assembled and the second position information of each inserted rebar in the assembled second precast concrete wall panel sent by the position information acquisition element, establishing a database of grouting sleeve position information and inserted rebar position information, and calculating a first interval range of the first position information and a second interval range of the second position information based on a preset program, determining a third interval range based on the second interval range and the first interval range, and using the third interval range within the first interval range as a target for position correction of the inserted rebar.

[0014] The method for correcting the position of inserted rebars in precast concrete wall panels provided by the present invention establishes a database of first position information and second position information, and can obtain the first position information of the grouting sleeves and the second position information of the inserted rebars on two precast concrete wall panels to be assembled from the database, and automatically calculate the first interval range of the first position information and the second interval range of the second position information according to a preset program, and can obtain the third interval range based on the second interval range and the first interval range, and use the third interval range within the first interval range as the position correction target of the inserted rebar, and can automatically obtain the position correction target of the inserted rebar, thereby avoiding the need to manually measure the position of each grouting sleeve and each inserted rebar and manually calculate the correction target of the inserted rebar during assembly, thereby improving the efficiency of precast concrete wall panel assembly during construction and reducing the labor intensity of construction personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a flow chart of the method for correcting the position of dowel bars in a precast concrete wall panel provided by the present invention;

[0017] Figure 2 It is a schematic diagram of the assembly of precast concrete wall panels;

[0018] Reference numerals:

[0019] 10: First precast concrete wall panel; 11: Grouting sleeve; 20: Second precast concrete wall panel; 21: Inserted reinforcement; 30: Hoisting component; 40: Position information acquisition component; 50: Composite floor slab. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0021] The features of the terms "first" and "second" in the description and claims of the present invention may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0022] The following combination Figure 1 and Figure 2 The present invention describes a method, device and system for correcting the position of dowel bars in a precast concrete wall panel.

[0023] like Figure 1 As shown, an embodiment of the present invention provides a method for correcting the position of dowel bars in a precast concrete wall panel, which specifically includes the following steps:

[0024] Step 101: Obtain the first position information of each grouting sleeve 11 and the second position information of each dowel rod 21 in each precast concrete wall panel, and establish a database of the position information of the grouting sleeve 11 and the dowel rod 21. Step 102: Obtain the first position information of each grouting sleeve 11 in the first precast concrete wall panel 10 to be assembled in the database, and determine a first interval range of the first position information based on a preset procedure. Step 103: Obtain the second position information of each dowel rod 21 in the second precast concrete wall panel 20 that has been assembled in the database, and determine a second interval range of the second position information based on a preset procedure, wherein the first precast concrete wall panel 10 is assembled on the second precast concrete wall panel 20. Step 104: Determine a third interval range based on the second interval range and the first interval range, and use the third interval range that is within the first interval range as a position correction target for the dowel rod 21.

[0025] Specifically, in this embodiment, the first precast concrete wall panel 10 refers to a precast concrete wall panel to be assembled, and the second precast concrete wall panel 20 refers to an installed precast concrete wall panel. Each precast concrete wall panel is provided with a plurality of grouting sleeves 11 on its lower end surface, and a plurality of dowels 21 on its upper end surface. During assembly, the second precast concrete wall panel 20 is first installed. Then, the first precast concrete wall panel 10 is suspended above the second precast concrete wall panel 20, and the first precast concrete wall panel 10 is lowered so that the dowels 21 of the second precast concrete wall panel 20 are respectively inserted into the plurality of grouting sleeves 11 of the first precast concrete wall panel 10. During actual construction, the position of the dowels 21 may deviate from the designed position, resulting in the dowels 21 being unable to be directly inserted into the grouting sleeves 11 during assembly, necessitating correction of the position of the dowels 21.

[0026] Before assembling the precast concrete wall panels, first obtain the first position information of multiple grouting sleeves 11 and the second position information of multiple dowels 21 at both ends of each precast concrete wall panel. Specifically, in this embodiment, the first position information refers to the outline of each grouting sleeve 11, and the second position information refers to the outline of the upper end surface of each dowel 21. Then, a database of the position information of the grouting sleeves 11 and the position information of the dowel 21 is established.

[0027] During assembly, the first position information of each grouting sleeve 11 in the first precast concrete wall panel 10 is obtained from the database, and then the center point of the lower end surface of the first precast concrete wall panel 10 is used as the origin, and more than three feature points are selected from the first position information of the grouting sleeve 11, that is, more than three feature points are selected on the outline of the grouting sleeve 11, and then the coordinates of each feature point are calculated. The center coordinates and diameter of the grouting sleeve 11 are calculated based on the coordinates of the three feature points, and the first interval range is determined with the center coordinates as the median and the diameter of the grouting sleeve 11 as the interval range.

[0028] Accordingly, the second position information of each dowel 21 in the assembled second precast concrete wall panel 20 is obtained from the database, and then, with the center point of the upper end surface of the second precast concrete wall panel 20 as the origin, more than three feature points are selected from the second position information of the dowel 21, that is, more than three feature points are selected on the contour of the dowel 21, and then the coordinates of each feature point are calculated. Then, the center coordinates and diameter of the dowel 21 are calculated by combining the coordinates of the three feature points. The second interval range is determined with the center coordinates as the median and the diameter of the dowel 21 as the interval range.

[0029] During assembly, the origin of the first precast concrete wall panel 10 is aligned with the origin of the second precast concrete wall panel 20, and the second interval range is compared with the first interval range. When some values ​​in the second interval range are outside the first interval range, the second center coordinates are adjusted to obtain the third center coordinates. Based on the third center coordinates and the diameter of the dowel 21, the third interval range of the position of the dowel 21 is determined, and the third interval range within the first interval range is used as the position correction target of the dowel 21.

[0030] The method for correcting the position of inserted rebars in precast concrete wall panels provided by an embodiment of the present invention establishes a database of first position information and second position information, and can obtain the first position information of the grouting sleeves and the second position information of the inserted rebars on two precast concrete wall panels to be assembled from the database, and automatically calculate the first interval range of the first position information and the second interval range of the second position information according to a preset program, and can obtain the third interval range based on the second interval range and the first interval range, and use the third interval range within the first interval range as the position correction target of the inserted rebar, and can automatically obtain the position correction target of the inserted rebar, thereby avoiding the need to manually measure the position of each grouting sleeve and each inserted rebar and manually calculate the correction target of the inserted rebar during assembly, thereby improving the efficiency of precast concrete wall panel assembly during construction and reducing the labor intensity of construction personnel.

[0031] Furthermore, in an embodiment of the present invention, the first position information of each grouting sleeve 11 in the first precast concrete wall panel 10 to be assembled is obtained from the database, and based on a preset program, the step of determining the first interval range of the first position information further includes: obtaining the first center point of the lower end surface of the first precast concrete wall panel 10, and determining the first center point as the first origin; obtaining multiple first feature points in the first position information of each grouting sleeve 11, calculating the coordinates of each first feature point, and calculating the first center coordinates and diameter of each grouting sleeve 11 based on the coordinates of more than three first feature points; taking the first center coordinates as the median and the diameter of each grouting sleeve 11 as the interval range, determining the first interval range, wherein the first interval range includes a first horizontal axis interval range and a first vertical axis interval range.

[0032] Specifically, in this embodiment, the preset program is a calculation program for the first interval range. The calculation program can be set in the processor in advance. After the processor obtains the first position information of each grouting sleeve 11 in the first precast concrete wall panel 10, the first interval range of each grouting sleeve 11 can be automatically calculated.

[0033] Specifically, the database can also store the contour information of the lower and upper end faces of the precast concrete wall panels. After obtaining the first position information of the grouting sleeve 11, the contour information of the end face where the grouting sleeve 11 is located is immediately obtained. Specifically, the two diagonals of the lower end face of the first precast concrete wall panel 10 are obtained, and the intersection of the diagonals is the first center point, and then the first center point is determined as the first origin. More than three first feature points are obtained from the first position information of the grouting sleeve 11, and the coordinates of each first feature point are calculated based on the first origin. Then, the first center coordinates and diameter of each grouting sleeve 11 are calculated based on the coordinates of the more than three first feature points. Then, the first interval range is determined with the first center coordinate as the median and the diameter of each grouting sleeve 11 as the interval range. For example, if the center coordinates of the first grouting sleeve 11 on the left adjacent to the first origin are (-50, 5) and the diameter of the grouting sleeve 11 is 30 mm, then the first horizontal axis range of the grouting sleeve 11 is [-65, -35], and the first vertical axis range is [-10, 20].

[0034] Furthermore, in an embodiment of the present invention, the step of obtaining the second position information of each inserted rebar 21 in the assembled second precast concrete wall panel 20 in the database and determining the second interval range of the second position information based on a preset program further includes: obtaining the second center point of the upper end surface of the second precast concrete wall panel 20, and determining the second center point as the second origin; obtaining multiple second feature points in the second position information of the upper end surface of each inserted rebar 21, calculating the coordinates of each second feature point, and calculating the second center coordinates and diameter of each inserted rebar 21 based on the coordinates of more than three second feature points; and determining the second interval range with the second center coordinate as the median and the diameter of each inserted rebar 21 as the interval range, wherein the second interval range includes a second horizontal axis interval range and a second vertical axis interval range.

[0035] Specifically, the method for determining the second range is essentially the same as the method for determining the first range. Two diagonals of the upper end surface of the second precast concrete wall panel 20 are obtained. The intersection of the diagonals is the second center point, which is then determined as the second origin. Three or more second characteristic points are obtained from the second position information of the inserted rebar 21. The coordinates of each second characteristic point are calculated using the second origin as a reference. The second center coordinates and diameter of each inserted rebar 21 are then calculated based on the coordinates of the three or more second characteristic points. The second range is then determined using the second center coordinate as the median and the diameter of each inserted rebar 21 as the range.

[0036] For example, if the center coordinates of the first inserted rebar 21 to the left of the second origin are obtained as (-65, 5), and the diameter of the inserted rebar 21 is 20 mm, since the inserted rebar 21 has deviations on both the horizontal and vertical axes, the second horizontal axis range of the inserted rebar 21 is [-75, -55], and the second vertical axis range of the inserted rebar 21 is [-5, 15].

[0037] In an embodiment of the present invention, a third interval range is determined based on the second interval range and the first interval range, and the step of using the third interval range within the first interval range as the position correction target of the inserted rebar 21 further includes: aligning the first origin with the second origin; comparing the second interval range with the first interval range, and when part of the value of the second interval range is outside the first interval range, adjusting the second center coordinate to obtain the third center coordinate; and determining the third interval range of the position of the inserted rebar 21 based on the third center coordinate and the diameter of the inserted rebar 21.

[0038] Specifically, during assembly, the first origin of the lower end surface of the first precast concrete wall panel 10 is aligned with the second origin of the upper end surface of the second precast concrete wall panel 20. The second interval is used as the first trial-and-error point for comparison with the first interval. If some values ​​in the second interval fall outside the first interval, the second center coordinates are adjusted to obtain the first third center coordinates. Based on the first third center coordinates and the diameter of the inserted rebar 21, the first third interval is determined. The first third interval is then compared with the first interval. If some values ​​in the first third interval fall within the first interval, the third interval becomes the target for position correction of the inserted rebar 21.

[0039] If part of the value of the first third interval range is outside the first interval range, continue to adjust the center coordinates of the inserted rebar 21 to obtain a second third interval range, and compare the second third interval range with the first interval range. If part of the value of the second third interval range is still outside the first interval range, continue to adjust the center coordinates of the inserted rebar 21, and repeat this process until all the values ​​of the third interval range are within the first interval range. At this time, the third interval range is the position correction target of the inserted rebar 21.

[0040] The method for correcting the position of dowels in precast concrete wall panels provided in an embodiment of the present invention can accurately obtain the three-dimensional position of each grouting sleeve and dowel in the precast concrete wall panel, automatically generate a correction plan for the dowels based on the three-dimensional position, determine the correction target of the dowels, and reduce manual labor intensity. At the same time, the preset database can count the three-dimensional positions of each grouting sleeve and dowel, which is convenient for traceability and analysis, and is conducive to the continuous improvement and development of the construction industry.

[0041] In an embodiment of the present invention, the steps of obtaining first position information of each grouting sleeve 11 and second position information of each dowel rod 21 in each precast concrete wall panel and establishing a database of the position information of the grouting sleeve 11 and the dowel rod 21 further include: numbering all precast concrete wall panels to be assembled once, and sequentially numbering the multiple grouting sleeves 11 in each precast concrete wall panel twice, and sequentially numbering the multiple dowel rods 21 in each precast concrete wall panel three times; determining the position information of each grouting sleeve 11 based on the primary number of the precast concrete wall panel, the secondary number of the grouting sleeve 11 in the precast concrete wall panel, and the first position information corresponding to the grouting sleeve 11; and determining the position information of each dowel rod 21 based on the primary number of the precast concrete wall panel, the tertiary number of the dowel rod 21 in the precast concrete wall panel, and the second position information corresponding to the dowel rod 21.

[0042] Specifically, all precast concrete wall panels to be assembled are numbered once, such as 1, 2, 3, etc. The multiple grouting sleeves 11 in each precast concrete wall panel are numbered twice, such as 1-A1, 1-A2, 1-A3, etc. The multiple rebars 21 in each precast concrete wall panel are numbered three times, such as 1-B1, 1-B2, 1-B3, etc. This number and the first or second position information are used as position information for a grouting sleeve 11 or a rebar 21. During assembly, the processor can obtain the first position information for each grouting sleeve 11 in the first precast concrete wall panel 10 to be assembled based on the secondary number of the grouting sleeve 11. Furthermore, the processor can obtain the second position information for each rebar 21 in the assembled second precast concrete wall panel 20 based on the tertiary number of each rebar 21 in the assembled second precast concrete wall panel 20.

[0043] The following describes a device for correcting the position of a precast concrete wall panel dowel provided by the present invention. The device for correcting the position of a precast concrete wall panel dowel described below and the method for correcting the position of a precast concrete wall panel dowel described above can be used in correspondence with each other.

[0044] An embodiment of the present invention provides a device for correcting the position of dowels in a precast concrete wall panel, comprising: a first acquisition module, an establishment module, a second acquisition module, a first determination module, a third acquisition module, a second determination module, and a third determination module. The first acquisition module is configured to obtain first position information of each grouting sleeve and second position information of each dowel in each precast concrete wall panel; the establishment module is configured to establish a database of grouting sleeve position information and dowel position information; the second acquisition module is configured to obtain the first position information of each grouting sleeve in a first precast concrete wall panel to be assembled from the database; the first determination module is configured to determine a first interval range of the first position information based on a preset procedure; the third acquisition module is configured to obtain the second position information of each dowel in a second precast concrete wall panel already assembled from the database; the second determination module is configured to determine a second interval range of the second position information based on a preset procedure, wherein the first precast concrete wall panel is assembled on the second precast concrete wall panel; and the third determination module is configured to determine a third interval range based on the second interval range and the first interval range, and to use the third interval range within the first interval range as a target for correcting the position of the dowels.

[0045] An embodiment of the present invention also provides a system for correcting the position of inserted rebars in precast concrete wall panels, comprising: a position information acquisition element and a processor. The position information acquisition element is used to obtain the first position information of each grouting sleeve 11 and the second position information of each inserted rebar 21 in all precast concrete wall panels to be assembled. The processor is used to receive the first position information of each grouting sleeve 11 in the first precast concrete wall panel 10 to be assembled and the second position information of each inserted rebar 21 in the assembled second precast concrete wall panel 20 sent by the position information acquisition element, establish a database of the position information of the grouting sleeve 11 and the position information of the inserted rebar 21, and calculate a first interval range of the first position information and a second interval range of the second position information based on a preset program. The processor is also used to determine a third interval range based on the second interval range and the first interval range, and use the third interval range within the first interval range as the position correction target of the inserted rebar 21.

[0046] Specifically, before assembly, the position information acquisition component obtains the first position information of each grouting sleeve 11 and the second position information of each inserted rebar 21 in each precast concrete wall panel to be assembled. The first and second position information are sent to the processor, which then establishes a database of the position information of the grouting sleeves 11 and the inserted rebar 21. Simultaneously, the processor calculates the first range of each grouting sleeve 11 and the second range of each inserted rebar 21 according to a preset program.

[0047] Specifically, the processor obtains the first position information of each grouting sleeve 11 in the first precast concrete wall panel 10 from the database, and simultaneously obtains the contour information of the lower end surface of the first precast concrete wall panel 10 from the database, and then takes the center point of the lower end surface of the first precast concrete wall panel 10 as the origin, selects more than 3 feature points from the first position information of the grouting sleeve 11, that is, selects more than 3 feature points on the contour of the grouting sleeve 11, and then calculates the coordinates of each feature point, and then calculates the center coordinates and diameter of the grouting sleeve 11 in combination with the coordinates of more than three feature points, and determines the first interval range with the center coordinates as the median and the diameter of the grouting sleeve 11 as the interval range.

[0048] Accordingly, the second position information of each dowel rod 21 in the assembled second precast concrete wall panel 20 is obtained from the database, and the contour information of the upper end surface of the second precast concrete wall panel 20 is obtained from the database. Then, with the center point of the upper end surface of the second precast concrete wall panel 20 as the origin, more than three feature points are selected from the second position information of the dowel rod 21, that is, more than three feature points are selected on the contour of the dowel rod 21, and then the coordinates of each feature point are calculated. Then, the center coordinates and diameter of the dowel rod 21 are calculated by combining the coordinates of the three or more feature points. The second interval range is determined with the center coordinates as the median and the diameter of the dowel rod 21 as the interval range.

[0049] The origin of the first precast concrete wall panel 10 is aligned with the origin of the second precast concrete wall panel 20, and the second interval range is compared with the first interval range. When some values ​​in the second interval range are outside the first interval range, the second center coordinates are adjusted to obtain the third center coordinates. Based on the third center coordinates and the diameter of the inserted rebar 21, the third interval range of the position of the inserted rebar 21 is determined, and the third interval range within the first interval range is used as the position correction target of the inserted rebar 21.

[0050] Optionally, in an embodiment of the present invention, the position information acquisition element may be a laser rangefinder or a camera.

[0051] The system for correcting the position of inserted rebars in precast concrete wall panels provided by an embodiment of the present invention can obtain the first position information of each grouting sleeve and the second position information of the inserted rebar in each precast concrete wall panel before assembly by setting a position information acquisition element and a processor, and establish a database. Then, the first interval range of the grouting sleeve and the second interval range of the inserted rebar on the two precast concrete wall panels to be assembled are calculated. The third interval range can be obtained based on the second interval range and the first interval range. The third interval range within the first interval range is used as the position correction target of the inserted rebar. The position correction target of the inserted rebar can be automatically obtained, avoiding manual measurement of the position of each grouting sleeve and each inserted rebar during assembly, improving the efficiency of precast concrete wall panel assembly during construction, and reducing the labor intensity of construction personnel.

[0052] like Figure 2 As shown, during construction, after the second precast concrete wall panel 20 is installed and cured, the lower half of the composite floor slab 50 is installed, and reinforcement and formwork are tied. The position information acquisition component 40 acquires the third number of each dowel 21 in the second precast concrete wall panel 20 and sends the third number to the processor. The processor automatically retrieves the second position information of each dowel 21 in the second precast concrete wall panel 20 from a database based on the third number and automatically calculates the second range of each dowel 21 according to a preset program. When the hoisting component 30 lifts the first precast concrete wall panel 10, the position information acquisition component 40 acquires the second number of each grouting sleeve 11 in the first precast concrete wall panel 10 from a database and sends the second number to the processor. The processor automatically retrieves the first position information of each grouting sleeve 11 in the first precast concrete wall panel 10 from the database and automatically calculates the first range of each first position information according to a preset program. The processor then derives the third range based on the second range and the first range, thereby generating a correction plan for the dowel 21 position.

[0053] The construction personnel make the first correction to the position of the dowel 21 according to the correction plan. In the upper half of the composite floor slab 50, at the position of the dowel 21 of the second precast concrete wall panel 20, concrete is poured, cured, and the formwork is removed. The second interval range of each dowel 21 is obtained again, and the correction plan for the position of the dowel 21 is generated again. The construction personnel correct the position of the dowel 21 again according to the correction plan. The first precast concrete wall panel 10 is hoisted, and the grouting sleeves 11 of the first precast concrete wall panel 10 are aligned with the dowel 21 in the second precast concrete wall panel 20 one by one. The first precast concrete wall panel 10 is lowered so that the dowel 21 is inserted into the corresponding grouting sleeves 11. The first precast concrete wall panel 10 is temporarily fixed and edge-sealed. Grouting is then poured into the grouting sleeves 11 of the first precast concrete wall panel 10 and cured to complete the installation of the first precast concrete wall panel 10.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A method for correcting the position of dowel bars in a precast concrete wall panel, characterized in that: include: Obtaining first position information of each grouting sleeve and second position information of each dowel in each precast concrete wall panel, and establishing a database of grouting sleeve position information and dowel position information; Obtain a first center point of the lower end surface of the first precast concrete wall panel in the database, and determine the first center point as the first origin; obtain multiple first feature points in the first position information of each grouting sleeve, calculate the coordinates of each first feature point, and calculate the first center coordinates and diameter of each grouting sleeve based on the coordinates of more than three first feature points; use the first center coordinates as the median value and the diameter of each grouting sleeve as the interval range to determine a first interval range, wherein the first interval range includes a first horizontal axis interval range and a first vertical axis interval range; Obtaining a second center point of the upper end surface of the second precast concrete wall panel in the database and determining the second center point as a second origin; obtaining multiple second feature points in the second position information of the upper end surface of each dowel, calculating the coordinates of each second feature point, and calculating the second center coordinates and diameter of each dowel based on the coordinates of three or more second feature points; determining a second interval range using the second center coordinate as the median and the diameter of each dowel as the interval range, wherein the second interval range includes a second horizontal axis interval range and a second vertical axis interval range, and the first precast concrete wall panel is assembled on the second precast concrete wall panel; Align the first origin with the second origin; compare the second interval range with the first interval range, and when some values ​​of the second interval range are outside the first interval range, adjust the second circle center coordinates to obtain third circle center coordinates; determine the third interval range of the inserted rebar position based on the third circle center coordinates and the diameter of the inserted rebar.

2. The method for correcting the position of dowel bars of a precast concrete wall panel according to claim 1, characterized in that: The step of comparing the second interval with the first interval, and adjusting the second center coordinate to obtain a third center coordinate when some values ​​of the second interval are outside the first interval; and determining the third interval of the inserted rebar position based on the third center coordinate and the diameter of the inserted rebar further includes: Comparing the second interval range as the first trial and error point with the first interval range, and when some values ​​in the second interval range are outside the first interval range, adjusting the second circle center coordinates to obtain the first third circle center coordinates; Determining a first third interval range based on the first coordinate of the third circle center and the diameter of the inserted bar; Comparing the first third interval with the first interval, and when a portion of the values ​​of the first third interval are outside the first interval, continuing the cycle of adjusting the coordinates of the center of the inserted rebar circle, determining the third interval, and comparing the third interval with the first interval; When the third interval is within the first interval, the loop is terminated; The last third interval range obtained before the cycle is terminated is used as a position correction target of the inserted reinforcement.

3. The method for correcting the position of dowel bars of a precast concrete wall panel according to claim 1, characterized in that: The step of obtaining the first position information of each grouting sleeve and the second position information of each dowel in each precast concrete wall panel and establishing a database of the grouting sleeve position information and the dowel position information further comprises: All precast concrete wall panels to be assembled are numbered once, multiple grouting sleeves in each precast concrete wall panel are numbered twice in sequence, and multiple dowel bars in each precast concrete wall panel are numbered three times in sequence; Determining the position information of each grouting sleeve based on the primary number of the precast concrete wall panel, the secondary number of the grouting sleeve in the precast concrete wall panel, and the first position information corresponding to the grouting sleeve; The position information of each inserted rebar is determined based on the primary number of the precast concrete wall panel, the tertiary number of the inserted rebar in the precast concrete wall panel, and the second position information corresponding to the inserted rebar.

4. The method for correcting the position of dowel bars of a precast concrete wall panel according to claim 3, characterized in that: The step of obtaining the first position information of each grouting sleeve in the first precast concrete wall panel to be assembled from the database further comprises: A secondary serial number of each grouting sleeve in the first precast concrete wall panel to be assembled is obtained, and first position information of each grouting sleeve in the first precast concrete wall panel to be assembled is obtained based on the secondary serial number.

5. The method for correcting the position of dowel bars of a precast concrete wall panel according to claim 3, characterized in that: The step of obtaining the second position information of each dowel in the assembled second precast concrete wall panel in the database further comprises: The third number of each dowel in the assembled second precast concrete wall panel is obtained, and second position information of each dowel in the assembled second precast concrete wall panel is obtained based on the third number.

6. A device for correcting the position of dowel bars in precast concrete wall panels, characterized in that: include: A first acquisition module is used to acquire first position information of each grouting sleeve and second position information of each dowel in each precast concrete wall panel; Establishing a module for establishing a database of grouting sleeve position information and rebar position information; a second acquisition module, obtaining a first center point of a lower end surface of a first precast concrete wall panel in the database, determining the first center point as a first origin; obtaining a plurality of first feature points in the first position information of each grouting sleeve, calculating the coordinates of each first feature point, and calculating the first center coordinates and diameter of each grouting sleeve based on the coordinates of the three or more first feature points; A first determining module is configured to determine a first interval range by taking the first center coordinate as a median value and the diameter of each grouting sleeve as an interval range, wherein the first interval range includes a first horizontal axis interval range and a first vertical axis interval range; a third acquisition module, which acquires a second center point of the upper end surface of the second precast concrete wall panel in the database and determines the second center point as a second origin; acquires a plurality of second characteristic points from the second position information of the upper end surface of each inserted rebar, calculates the coordinates of each second characteristic point, and calculates the second center coordinates and diameter of each inserted rebar based on the coordinates of the three or more second characteristic points; a second determining module, configured to determine a second interval range using the coordinate of the second circle center as a median value and a diameter of each of the dowels as an interval range, wherein the second interval range includes a second horizontal axis interval range and a second vertical axis interval range, and the first precast concrete wall panel is assembled on the second precast concrete wall panel; The third determination module is used to align the first origin with the second origin; compare the second interval range with the first interval range, and when part of the value of the second interval range is outside the first interval range, adjust the second center coordinate to obtain the third center coordinate; and determine the third interval range of the inserted rebar position based on the third center coordinate and the diameter of the inserted rebar.

7. A system for executing the method for correcting the position of dowel bars of a precast concrete wall panel according to any one of claims 1 to 5, characterized in that: include: a position information acquisition component for acquiring first position information of each grouting sleeve and second position information of each dowel in all precast concrete wall panels to be assembled; A processor is configured to receive the first position information of each grouting sleeve in the first precast concrete wall panel to be assembled and the second position information of each inserted rebar in the assembled second precast concrete wall panel sent by the position information acquisition component, establish a database of the grouting sleeve position information and the inserted rebar position information, calculate a first interval range of the first position information and a second interval range of the second position information based on a preset program, determine a third interval range based on the second interval range and the first interval range, and use the third interval range within the first interval range as a position correction target for the inserted rebar.

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