Abstract: The present disclosure relates to a method of controlling a 3D printer for construction which prints and forms various structures, in which a controller 10 configured to control the 3D printer for construction, a scanner 30 configured to detect stereographic surface information, and a computer 40 connected to the controller 10 and the scanner 30 are provided so that the scanner 30 detects actually measured surface information 39 of a printing matter 20 and transmits the detected actually measured surface information 39 to the computer 40, and the computer 40 compares the actually measured surface information 39 with planned surface information 49 to calculate a printing error and then corrects command information 19 such that the printing error is compensated for and transmits the corrected command information 19 to the controller 10.

Abstract: The present invention relates to a method of generating a pipe construction drawing including a weld map from a 3D model of a plant and, more specifically, to a method of generating a pipe construction drawing including a weld map from a 3D model of a plant, the method enabling a shop welding point and a field welding point to be automatically generated during generation of a construction drawing by applying a predetermined RULE to a plant 3D model created in a plant engineering step, thereby enhancing productivity and constructability of a pipe.

Abstract: The present invention relates to prefabricated shear reinforcement that is built in the interior of a slab around a column, more specifically to prefabricated shear reinforcement that is capable of having a plurality of bottom and top main bars whose one end extending into a column and a spiral stirrup bent continuously to form a plurality of rectangular shapes surrounding the bottom and top main bars, thereby having excellent fabrication, constructability, and space utilization, providing economical advantages, minimizing labors needed on a construction site, and reducing a period of construction.

Abstract: The present disclosure relates to a method of controlling a 3D printer for construction which prints and forms various structures, in which a controller 10 configured to control the 3D printer for construction, a scanner 30 configured to detect stereographic surface information, and a computer 40 connected to the controller 10 and the scanner 30 are provided so that the scanner 30 detects actually measured surface information 39 of a printing matter 20 and transmits the detected actually measured surface information 39 to the computer 40, and the computer 40 compares the actually measured surface information 39 with planned surface information 49 to calculate a printing error and then corrects command information 19 such that the printing error is compensated for and transmits the corrected command information 19 to the controller 10.

Abstract: The present disclosure relates to a 3D printer for construction for printing and forming various structures, in which agitating blades 45 capable of auto-rotation are mounted inside a nozzle 10 discharging a printing material such as concrete or mortar, to thereby enable agitation of a fluid printing material inside the nozzle 10. According to the present disclosure, agitation of the fluid printing material inside the nozzle 10 of the 3D printer for construction may be facilitated to prevent material segregation and maintain a homogeneously mixed state of materials constituting the fluid printing material.

Abstract: Provided is a method for displaying a three-dimensional (3D) drawing, the method including: receiving, by an input unit, selection of one 3D model object in the 3D drawing including the plurality of 3D model objects; calculating, by a control unit, a dimension of the selected 3D model object based on 3D model data corresponding to the selected 3D model object; and determining, by the control unit, a position where the dimension of the selected 3D model object is displayed, wherein the 3D model data includes object type information of the 3D model object that corresponds to each 3D model object.

Abstract: Disclosed are an electrostatic precipitator system and method. The disclosed electrostatic precipitator system includes: an electrostatic precipitator; a main hopper which is disposed below the electrostatic precipitator so as to be in fluid communication with the electrostatic precipitator; a plurality of sub-hoppers disposed below the main hopper so as to be in fluid communication with the main hopper; a vertical duct disposed below each sub-hopper so as to be in fluid communication with each sub-hopper; and a water tank disposed below the vertical duct so as to be in fluid communication with the vertical duct.

Abstract: Disclosed are a method and apparatus for treating wastewater. The disclosed method for treating wastewater includes a step (S10-1) of passing wastewater through a UV reaction tank to produce first treated water; a step (S10-2) of passing the first treated water through a pH adjustment tank to produce second treated water; a step (S10-3) of passing the second treated water through a first flocculation tank to produce third treated water; a step (S10-4) of passing the third treated water through a second flocculation tank to produce fourth treated water; a step (S10-5) of passing the fourth treated water through an inorganic sedimentation tank to produce fifth treated water and sludge; a step (S10-6) of passing the fifth treated water through a biological treatment reactor to produce sixth treated water; and a step (S10-7) of passing the sixth treated water through an organic sedimentation tank to produce seventh treated water.

Abstract: The present invention relates to a prefabricated bracket assembly integrated into a prefabricated column assembly for connecting PC beams, the end portions of PC beams being placed inside the prefabricated bracket assembly that is assembled on top of the prefabricated column assembly, into which concrete is poured so as to connect the PC beams and the prefabricated bracket assembly, thereby facilitating the connection of the PC beams to a factory-made prefabricated column assembly and allowing cost reduction.

Abstract: The present invention relates to a prefabricated bracket assembly integrated into a prefabricated column assembly for connecting PC beams, the end portions of PC beams being placed inside the prefabricated bracket assembly that is assembled on top of the prefabricated column assembly, into which concrete is poured so as to connect the PC beams and the prefabricated bracket assembly, thereby facilitating the connection of the PC beams to a factory-made prefabricated column assembly and allowing cost reduction.

Abstract: Disclosed are a method of processing digitalized drawing and a compute program. One aspect of the present invention provides a method of processing digitalized drawing data by a computer, the method including: providing digitalized drawing having a line ID (S10); splitting the line ID into a plurality of topologies, which are smallest units that are mutually exclusive and do not overlap each other (S20); generating a pipe system network (PSN) by recombining the plurality of topologies, wherein the plurality of topologies are recombined such that a start point and an end point of the PSN are each independently Equipment, Branch or Header (S30); and generating a path item (PI) by arranging internal objects on the digitalized drawing existing between the start point and the end point of the pipe system network (PSN) and adding necessary information usable in a subsequent process (S40).

Abstract: Disclosed are a three-dimensional (3D) simulation method and a 3D simulation apparatus. The 3D simulation method disclosed herein includes a step (S20) of separating point cloud data including a road, an obstacle, and a cargo transportation route into road data and obstacle data, a step (S40) of converting the road data into road mesh data, and converting the obstacle data into obstacle mesh data, a step (S60) of constructing a virtual environment by merging the road mesh data with the obstacle mesh data, a step (S80) of loading a specific cargo transportation route to the virtual environment, a step (S100) of loading a 3D transport truck and a 3D cargo to a predetermined point of the cargo transportation route, and a step (S120) of performing a route survey simulation while virtually driving the 3D transport truck and the 3D cargo along the cargo transportation route.

Abstract: The method for treating wastewater includes a first flocculation-and-sedimentation process and a second flocculation-and-sedimentation process, wherein the first flocculation-and-sedimentation process include: passing wastewater through a first flocculation reaction tank; passing the first treated water through a third flocculation reaction tank; passing the third treated water through a fourth flocculation reaction tank; and passing the fourth treated water through a first sedimentation tank to generate fifth treated water and sludge, and the second flocculation-and-sedimentation process include: passing the fifth treated water through a fifth flocculation reaction tank to generate sixth treated water; passing the sixth treated water through a sixth flocculation reaction tank to generate sixth treated water; passing the sixth treated water through a seventh flocculation reaction tank to generate eighth treated water; and passing the eighth treated water through a second sedimentation tank to generate ninth t

Abstract: Disclosed are an electrostatic precipitator system and method. The disclosed electrostatic precipitator system includes: an electrostatic precipitator; a main hopper which is disposed below the electrostatic precipitator so as to be in fluid communication with the electrostatic precipitator; a plurality of sub-hoppers disposed below the main hopper so as to be in fluid communication with the main hopper; a vertical duct disposed below each sub-hopper so as to be in fluid communication with each sub-hopper; and a water tank disposed below the vertical duct so as to be in fluid communication with the vertical duct.

Abstract: A waste heat recovery system and method are disclosed. The waste heat recovery system disclosed herein comprises: a waste heat recovery boiler; a waste heat supply member configured to supply waste heat to the waste heat recovery boiler; and a water tank configured to fluidly communicate with the waste heat supply member.

Abstract: Disclosed are a load dispersion-type indoor lifting apparatus for a prefabricated steel structure, and a method of installing a prefabricated steel structure by using the same. The load dispersion-type indoor lifting apparatus for a prefabricated steel structure disclosed herein includes a moving cart, a support frame configured to be mounted on the moving cart, a lifting frame configured to be mounted on the support frame, and a plurality of stacker systems configured to lift up the lifting frame while pushing the support frame down.

Abstract: A waste heat recovery system and method are disclosed. The waste heat recovery system disclosed herein comprises: a waste heat recovery boiler; a waste heat supply member configured to supply waste heat to the waste heat recovery boiler; and a water tank configured to fluidly communicate with the waste heat supply member.

Abstract: According to a preferred embodiment of the present disclosure, a project management device includes: a division unit configured to divide a project into n construction work packages (CWPs) based on a construction type constituting the project, a minimum unit area for managing the project, and design information; and a display unit configured to classify the n CWPs according to construction statuses and work front statuses and display the n CWPs in a grid form.

Abstract: The present invention relates to a 3D printer for construction for printing and forming various structures, in which a spray pipe follows a nozzle for discharging concrete or mortar, and sprays a liquid material onto the surface of a printed object, thereby enabling the liquid material to be applied on the surface of the printed object. Through the present invention, the printing of the printed object and the spraying of the liquid material onto the surface of the printed object may be carried out simultaneously by means of the 3D printer for construction, and thus a rapid and uniform coating treatment of the printed object is possible, and an adequate wet state of the tissue of the printed object may be maintained.

Abstract: Disclosed are a load dispersion-type indoor lifting apparatus for a prefabricated steel structure, and a method of installing a prefabricated steel structure by using the same. The load dispersion-type indoor lifting apparatus for a prefabricated steel structure disclosed herein includes a moving cart, a support frame configured to be mounted on the moving cart, a lifting frame configured to be mounted on the support frame, and a plurality of stacker systems configured to lift up the lifting frame while pushing the support frame down.