CN-121808924-B - PC sandwich wall and composite floor slab connection construction process simulation system based on digital twin

CN121808924BCN 121808924 BCN121808924 BCN 121808924BCN-121808924-B

Abstract

The invention discloses a digital twin-based PC sandwich wall and composite floor slab connection construction process simulation system, which relates to the technical field of process simulation and comprises a data acquisition module, an analysis processing module and a control module, wherein the data acquisition module is used for acquiring three-dimensional point cloud data and design drawing data of all connection nodes in a target construction area, the analysis processing module is used for comparing the three-dimensional point cloud data with the design drawing data to generate a steel bar position deviation value and a component installation seam width value of each connection node and dividing the nodes into different construction process control difficulty levels according to the steel bar position deviation value.

Inventors

LI WENJUN
YANG HUAN
HU JIAXIN
JIANG HUA
ZHU SHUANGLI

Assignees

湖南省第六工程有限公司

Dates

Publication Date: 20260508
Application Date: 20260312

Claims (10)

1. PC sandwich wall and coincide floor connection construction technology simulation system based on digit twin, its characterized in that includes: The data acquisition module is used for acquiring three-dimensional point cloud data and design drawing data of all the connection nodes in the target construction area; The analysis processing module is used for comparing the three-dimensional point cloud data with the design drawing data, generating a steel bar position deviation value and a member installation seam width value of each connecting node, and dividing the nodes into different construction process control difficulty levels according to the steel bar position deviation values; The sequence optimizing module is used for receiving construction process control difficulty level information of all nodes, taking the node paragraph lengths with the same continuous control difficulty level in the maximized sequence as a first target, taking the standard deviation of the rotation angle change of the minimum tower crane boom between adjacent nodes as a second target, and generating a physical construction sequence which is different from the original spatial position sequence as an optimized construction sequence; The simulation execution and output module is used for sequentially driving the three-dimensional model to perform construction process dynamic simulation according to the node sequence of the optimized construction sequence and generating construction equipment operation instructions corresponding to each step.
2. The digital twinning-based PC core wall and composite floor slab connection construction process simulation system according to claim 1, wherein the analysis processing module further performs the steps of: establishing a mapping relation between the construction process control difficulty level and necessary technical measures; the high control difficulty level is mapped to at least one of the following necessary technical measures that a high-precision laser positioning clamp is used, low-fluidity grouting material is adopted and matched with vibration encryption, and temporary adjustable supports are additionally arranged on two sides of a node; Mapping the level of difficulty of control to at least one of the following necessary technical measures, namely grouting the slurry with standard fluidity by using a standard mechanical positioning clamp; The low control difficulty level is mapped to a standard construction flow without special technical measures.
3. The digital twinning-based PC sandwich wall and composite floor slab connection construction process simulation system according to claim 2, wherein when the control difficulty levels of two adjacent nodes in a sequence are different, switching from low-difficulty node construction to high-difficulty node construction, and the necessary technical measures mapped by the high-difficulty levels must be forced to be executed in a construction instruction; switching from high-difficulty node construction to low-difficulty node construction requires that special technical measures no longer required be explicitly canceled in the construction instructions.
4. The digital twinning-based PC sandwich wall and composite floor slab connection construction process simulation system according to claim 1, wherein the manner of generating the optimized construction sequence by the sequence optimizing module includes the reverse buffer insertion step: Segmenting an original construction sequence based on the control difficulty level of the node, and identifying paragraphs with continuous and same control difficulty level as process stabilizing segments; Identifying all process stabilizing sections consisting of continuous high-control difficulty level nodes, and marking the process stabilizing sections as high-load sections; For each high-load segment, if the high-load segment is followed by another process stabilization segment with different control difficulty levels in the preliminary sequence, performing buffer analysis between the two segments; selecting a node with low control difficulty level from the global node pool as a candidate buffer node to be inserted between two segments; the judgment standard is that after the candidate buffer node is inserted, the comprehensive process switching complexity and the motion mutation degree from the last node of the previous high-load section to the buffer node and then to the initial node of the next section are lower than the value when the two high-load sections are directly connected; If the judgment standard is met, inserting is performed, and a sequence to be optimized including a reverse buffer segment is generated.
5. The digital twinning-based PC core wall and composite floor slab connection construction process simulation system according to claim 4, wherein the sequence optimization module performs the multi-objective optimization sequencing step after finishing the reverse buffer segment insertion: Based on the sequence to be optimized comprising the buffer segments, on the premise of keeping the internal node sequence of each process stabilizing segment unchanged, trying to exchange the positions of different process stabilizing segments in the whole sequence to form a plurality of candidate sequences; respectively calculating a process continuity score and a tower crane motion smoothness score of each candidate sequence; the process continuity scoring is based on the length of the longest process stabilization segment in the sequence; The scoring basis of the motion smoothness of the tower crane is the standard deviation of the change of the tower crane rotation angles among all adjacent nodes in the sequence, and the smaller the standard deviation is, the higher the score is; And selecting a candidate sequence set with the highest process continuity score from all candidate sequences, and then selecting a sequence with the highest tower crane motion smoothness score from the set as a final output.
6. The digital twinning-based PC sandwich wall and composite floor slab connection construction process simulation system according to claim 1, wherein the sequence optimization module is further connected with a real-time signal interface of a tower crane hoisting control system; when the optimized construction sequence is generated, a dynamic constraint condition is added, namely, the space position of the current node to be constructed in the sequence is required to be located in a sector coverage area taking the expected stop position of the tower crane at the completion of construction of one node above a large arm as a circle center and taking the preset length as a radius.
7. The digital twinning-based PC sandwich wall and composite floor slab connection construction process simulation system according to claim 6 is characterized in that the length of the preset radius is not a fixed value, but is calculated dynamically by a sequence optimization module according to the control difficulty level of the current node to be constructed; the calculation mode is that the time required by the tower crane large arm to rotate from the previous node position to the theoretical position of the current node to be constructed at a constant speed is compared with the standard preparation time for completing the necessary technical measures corresponding to the current node to be constructed; if the turning time is longer than the standard preparation time, the maximum working radius of the tower crane is used as the sector radius; If the slewing time is smaller than or equal to the standard preparation time, a calculation radius is adopted, and the calculation radius ensures that the slewing time of the tower crane is equal to the standard preparation time, so that the construction preparation is just completed when the tower crane is in place.
8. The digital twinning-based PC sandwich wall and composite floor slab connection construction process simulation system according to claim 1, wherein the manner of generating the construction equipment operation instruction by the simulation execution and output module is as follows: for the first node in the optimized construction sequence, generating a complete instruction packet containing the initial pressure set value of the grouting machine, the vibration rod type number selection and the positioning fixture installation coordinates; And for each node after the first node in the sequence, comparing the complete instruction packet of the current node with the instruction packet of the previous node item by item, only generating instruction items with different contents, and clearly describing the control difficulty level change basis corresponding to each change in the instruction.
9. The digital twinning-based PC sandwich wall and composite floor slab connection construction process simulation system according to claim 1, further comprising a field data receiving module, wherein the field data receiving module: connecting a measuring instrument of a construction site, and receiving final positioning data of the steel bars of the completed construction node; Comparing the final positioning data of the steel bars with the position deviation value of the node steel bars in the simulation system, and automatically reevaluating the control difficulty level of the node when the difference value of the final positioning data of the steel bars and the position deviation value of the node steel bars exceeds the allowable error range; and sending an instruction to a sequence optimizing module, carrying out local re-planning on the subsequent non-constructed nodes based on the current constructed node sequence, and seamlessly embedding the newly planned local sequence into the original optimized construction sequence.
10. The digital twinning-based PC sandwich wall and composite floor slab connection construction process simulation system according to claim 1, wherein the simulation execution and output module comprises a contrast display unit, and the contrast display unit: In the three-dimensional simulation view, sequentially connecting nodes according to the original drawing sequence by using a first color line to form a first construction path, and marking the control difficulty level of the nodes on the nodes by using different color blocks; sequentially connecting the nodes according to the sequence of the optimized construction sequence by using a second color line to form a second construction path; And on the second construction path, marking the current simulation progress by moving a dynamic arrow, and when the arrow moves to a node with the level of control difficulty changed, displaying a list of necessary technical measures triggered by the level change by an automatic pop-up window.

Description

PC sandwich wall and composite floor slab connection construction process simulation system based on digital twin Technical Field The invention belongs to the technical field of process simulation, and particularly relates to a digital twinning-based PC sandwich wall and composite floor slab connection construction process simulation system. Background The connection node of the PC sandwich wall and the composite floor slab is the stress part of the assembled building core, and the construction precision directly determines the building stability and the earthquake resistance. The current connection node construction is operated by manual comparison drawing, and has the following limitations: The problems that the working condition is lack and the drawing is accurately compared before construction, the steel bar deviation cannot be recognized in advance, the seam width exceeds standard and the like are solved, and repeated correction is easy. The verification data is not returned in real time after construction, visual path comparison is not available, and sequence rationality is difficult to arbitrate. The construction sequences are only distributed according to the space positions, the construction difficulty and the tower crane characteristics are not combined, and the constraint parameters are fixed. The operation instructions are not differentially output, and cannot be dynamically re-planned, so that the equipment can turn around and work waiting greatly. The alternate construction of the nodes with different difficulties causes the confusion of connection, and when the nodes with high difficulty are switched to low difficulty after continuous construction, the faults are easily caused by technological mutation. The traditional mode lacks dynamic simulation visualization and progress linkage, on-site personnel have difficulty in adjusting key points of process, and have no clear grade switching technical measure rule, so that quality hidden danger is easily aggravated due to improper measures. Disclosure of Invention The invention aims to provide a digital twinning-based PC sandwich wall and composite floor slab connection construction process simulation system, which aims to solve the problems in the prior art. PC sandwich wall and coincide floor connection construction technology simulation system based on digit twin includes: The data acquisition module is used for acquiring three-dimensional point cloud data and design drawing data of all the connection nodes in the target construction area; The analysis processing module is used for comparing the three-dimensional point cloud data with the design drawing data, generating a steel bar position deviation value and a member installation seam width value of each connecting node, and dividing the nodes into different construction process control difficulty levels according to the steel bar position deviation values; The sequence optimizing module is used for receiving construction process control difficulty level information of all nodes, taking the node paragraph lengths with the same continuous control difficulty level in the maximized sequence as a first target, taking the standard deviation of the rotation angle change of the minimum tower crane boom between adjacent nodes as a second target, and generating a physical construction sequence which is different from the original spatial position sequence as an optimized construction sequence; The simulation execution and output module is used for sequentially driving the three-dimensional model to perform construction process dynamic simulation according to the node sequence of the optimized construction sequence and generating construction equipment operation instructions corresponding to each step. The method has the innovation points that the node control difficulty level and the tower crane motion characteristic are combined to generate an optimized construction sequence different from the original spatial sequence, so that the process continuity is improved, the tower crane rotation abrupt change is reduced, and the construction efficiency and the safety are improved. In some possible implementations, the analysis processing module further performs the steps of: establishing a mapping relation between the construction process control difficulty level and necessary technical measures; the high control difficulty level is mapped to at least one of the following necessary technical measures that a high-precision laser positioning clamp is used, low-fluidity grouting material is adopted and matched with vibration encryption, and temporary adjustable supports are additionally arranged on two sides of a node; Mapping the level of difficulty of control to at least one of the following necessary technical measures, namely grouting the slurry with standard fluidity by using a standard mechanical positioning clamp; The low control difficulty level is mapped to a standard construction flow without special t