Abstract: Provided are a method of manufacturing a three-dimensional textile reinforcement material and a method of constructing a textile reinforced concrete structure using a three-dimensional textile reinforcement material. A two-dimensional grid is bent into a three-dimensional shape using a two-dimensionally woven or knitted textile grid, and the bent grid is coupled with at least one two-dimensional grid, and thus the three-dimensional textile reinforcement material can be simply and easily formed. The three-dimensional textile reinforcement material can be formed by coating the coupled two-dimensional grid and a three-dimensional grid with a thermosetting resin and curing the coupled grids to support a concrete pouring pressure.

Abstract: Provided are a system and method for reinforcing and protecting a reinforced concrete structure in which a reinforced concrete structure is divided and corrosion factors of the divided cross-sectional regions are monitored to automatically supply a protection current to each of the divided cross-sectional regions, thereby actively performing protection of the reinforced concrete structure, and also, by adjusting the level of a protection current according to the progression of corrosion in each divided cross-sectional region of the reinforced concrete structure, power consumption required for protection is optimized and protection is effectively performed, and also by disposing a carbon fiber textile grid in the surface of the reinforced concrete structure to be employed as both a reinforcement member and an anode of the reinforced concrete structure, microcracking which may occur in concrete curing is inhibited and thus permeation of moisture or a chloride into the surface thereof is prevented.

Abstract: A heat shrinkable tube-covered rebar basically solves a problem of corrosion of a rebar embedded in a concrete structure by covering the rebar with a heat shrinkable tube, which is a polymer material, and a thermosetting resin to prevent the rebar embedded in the concrete structure from corroding, and easily integrates a reinforcing bar with the heat shrinkable tube and perform a first anti-corrosion treatment on the reinforcing bar by applying a thermosetting resin between the reinforcing bar and the heat shrinkable tube.

Abstract: Provided are an apparatus for forming non-excavation water and sewage pipe lining for rehabilitation using a textile grid reinforcement material and mortar lining, which allows a textile grid reinforcement material to be continuously disposed and mortar lining to be formed thereon when an old water and sewage pipe is rehabilitated by forming mortar lining in the old water and sewage pipe to fundamentally suppress fine cracks generated on the coated mortar lining, allows the textile grid reinforcement material, to be applied so as to solve a problem of corrosion of the reinforcement material generated when a conventional reinforcing bar or a wire mesh is applied, and in comparison to a conventional method of forming lining of only mortar, allows the textile grid reinforcement material to be applied to reduce a thickness of mortar lining and to perform continuous construction so as to perform economical construction, and a method thereof.

Abstract: Provided are a highly durable textile reinforcing panel used as a concrete form and a method for constructing a reinforced concrete structure using the same. The highly durable textile reinforcing panel is configured to resist a lateral pressure caused due to a self-load of concrete which is not cured during construction and function as a structure reinforcing material by being integrated with concrete cured after the construction, is integrated with the concrete structure via a textile shear connector formed on a highly durable concrete panel, and allows a lattice-shaped reinforcing material to remarkably increase flexural strength of the highly durable concrete panel, and thus a flexural strength of the entire concrete structure is remarkably increased when the highly durable textile reinforcing panel used as a concrete form is structurally integrated with the concrete structure.

Abstract: Reinforcing panel having high durability, high strength, and high hardness is applied such that a concrete structure may be repaired to have excellent resistance to an external environment and to be structurally excellent. In comparison to existing bonding methods, a concrete structure and a reinforcing panel may be completely attached to each other as a whole using a repairing material with high fluidity as a cement-based material injected into a repair cross section. Part with microcracks is completely filled with repairing cement mortar injected at high pressure. Since reinforcing panel is precast-fabricated in a factory, embossing, intaglio, color, and the like may be easily added to an external surface of the reinforcing panel and an excellent exterior may be provided after repair due to an aesthetic cross section thereof The reinforcing panel fabricated in a factory is applied as to reduce labor costs and construction costs.

Abstract: Provided are a carbon fiber textile reinforcing material with an anode metal line which can be repaired and reinforced with a high stiffness and non-corrosive carbon fiber textile by disposing a carbon fiber textile reinforcing material with an anodic metal line functioning as a conductor and a reinforcing material on a deteriorated cross-section of concrete, can maximize repair and reinforcement of a reinforced concrete structure by preventing additional corrosion of a concrete embedded reinforcing bar using a sacrificial anode arranged on the carbon fiber textile, can prevent corrosion of an existing reinforced concrete structure and can be used as a reinforcing material and a corrosion preventing material of a new concrete structure, and a method for repairing and reinforcing a reinforced concrete structure using the same.

Abstract: Provided are a highly durable textile reinforcing panel used as a concrete form and a method for constructing a reinforced concrete structure using the same. The highly durable textile reinforcing panel is configured to resist a lateral pressure caused due to a self-load of concrete which is not cured during construction and function as a structure reinforcing material by being integrated with concrete cured after the construction, is integrated with the concrete structure via a textile shear connector formed on a highly durable concrete panel, and allows a lattice-shaped reinforcing material to remarkably increase flexural strength of the highly durable concrete panel, and thus a flexural strength of the entire concrete structure is remarkably increased when the highly durable textile reinforcing panel used as a concrete form is structurally integrated with the concrete structure.

Abstract: Provided is a safety inspection apparatus for a bridge using an expansion joint with a load cell capable of inspecting safety of a bridge and checking an overweight of a traveling vehicle by including a load cell installed at a lower portion of an expansion joint installed between upper plates of a bridge to measure a load of a traveling vehicle, and a measuring device installed on the bridge to measure behavior of the bridge, determining a total weight of a vehicle to manage an operation of an overweight vehicle which hinders safety of a structure and road pavement, measuring and storing weight data of a vehicle passing over the bridge as behavior data of the bridge in real time, and determining performance, a degree of deterioration, and a damaged position of the bridge without a separate safety inspection by analyzing the data over the long term.

Abstract: Provided are an unmanned aerial vehicle system for taking a close-up picture of a facility and a photography method using the same. The unmanned aerial vehicle system can safely bring a drone, which is an unmanned aerial vehicle, close to a facility surface, which is a subject, using supports and settling members to precisely photograph damage, deterioration, and defects on the facility surface and can safely bring the unmanned aerial vehicle close to the facility and fix the unmanned aerial vehicle on the facility in a perpendicular direction with respect to the subject surface of the facility to improve the quality of an image captured by a camera when the unmanned aerial vehicle is remotely controlled or autonomously navigates.

Abstract: Provided are a facility management system and method using an Internet of things (IoT) based sensor and an unmanned aerial vehicle (UAV). The facility management system and method may determine a current status and an abnormal behavior of a facility by primarily measuring the abnormal behavior of the facility in real time by a plurality of IoT based sensors included in the facility and secondarily precisely measuring the abnormal behavior of the facility by capturing an image through a UAV when necessary or when the abnormal behavior is detected, and may prevent a false alarm due to an error of a measurement sensor by performing two inspections through the IoT based sensor unit and the UAV.

Abstract: Provided is a safety inspection apparatus for a bridge using an expansion joint with a load cell capable of inspecting safety of a bridge and checking an overweight of a traveling vehicle by including a load cell installed at a lower portion of an expansion joint installed between upper plates of a bridge to measure a load of a traveling vehicle, and a measuring device installed on the bridge to measure behavior of the bridge, determining a total weight of a vehicle to manage an operation of an overweight vehicle which hinders safety of a structure and road pavement, measuring and storing weight data of a vehicle passing over the bridge as behavior data of the bridge in real time, and determining performance, a degree of deterioration, and a damaged position of the bridge without a separate safety inspection by analyzing the data over the long term.

Abstract: Provided are an unmanned aerial vehicle system for taking a close-up picture of a facility and a photography method using the same. The unmanned aerial vehicle system can safely bring a drone, which is an unmanned aerial vehicle, close to a facility surface, which is a subject, using supports and settling members to precisely photograph damage, deterioration, and defects on the facility surface and can safely bring the unmanned aerial vehicle close to the facility and fix the unmanned aerial vehicle on the facility in a perpendicular direction with respect to the subject surface of the facility to improve the quality of an image captured by a camera when the unmanned aerial vehicle is remotely controlled or autonomously navigates.

Abstract: A heat shrinkable tube-covered rebar basically solves a problem of corrosion of a rebar embedded in a concrete structure by covering the rebar with a heat shrinkable tube, which is a polymer material, and a thermosetting resin to prevent the rebar embedded in the concrete structure from corroding, and easily integrates a reinforcing bar with the heat shrinkable tube and perform a first anti-corrosion treatment on the reinforcing bar by applying a thermosetting resin between the reinforcing bar and the heat shrinkable tube.

Abstract: A variable traffic safety sign is useful in informing road users of the possibility of a surface of a road or bridge section being wet or frozen without using an additional external power source by exactly expressing freezing and wet roadbed conditions of the road or bridge section using a thermochromic paint and a humidity indicator paint, and also allowing road drivers to exactly recognize the roadbed conditions of the road or bridge section by displaying the freezing and wet roadbed conditions of the road or bridge section conditions in response to changes in temperature and humidity, respectively. Also, the variable traffic safety sign is readily applicable to structures such as a bridge crash barrier, a traffic safety sign board, a bridge guardrail, a road shoulder, and an inner part, entrance and exit of a tunnel.

Abstract: A rod-shaped FRP bar is manufactured with a fiber and a resin by using a nozzle 100 which includes an outer nozzle 11 having a penetration hole at its center and a plurality of middle nozzles 12 disposed at an inlet of the outer nozzle 11 so that one middle nozzle is located inside another middle nozzle with an interval. Fibers are supplied through a center hole of the middle nozzle located at an innermost location, through intervals between the middle nozzles and through intervals between the middle nozzles and the outer nozzle, thereby making a hybrid FRP bar 1 having a section in which the fibers configure a plurality of fiber distribution layers from the center of the FRP bar toward the outside.

Abstract: A rod-shaped FRP bar is manufactured with a fiber and a resin by using a nozzle (100) which includes an outer nozzle (11) having a penetration hole at its center and a plurality of middle nozzles (12) disposed at an inlet of the outer nozzle 11 so that one middle nozzle is located inside another middle nozzle with an interval. Fibers are supplied through a center hole of the middle nozzle located at an innermost location, through intervals between the middle nozzles and through intervals between the middle nozzles and the outer nozzle, thereby making a hybrid FRP bar (1) having a section in which the fibers configure a plurality of fiber distribution layers from the center of the FRP bar toward the outside.

Abstract: A rod-shaped FRP bar is manufactured with a fiber and a resin by using a nozzle 100 which includes an outer nozzle 11 having a penetration hole at its center and a plurality of middle nozzles 12 disposed at an inlet of the outer nozzle 11 so that one middle nozzle is located inside another middle nozzle with an interval. Fibers are supplied through a center hole of the middle nozzle located at an innermost location, through intervals between the middle nozzles and through intervals between the middle nozzles and the outer nozzle, thereby making a hybrid FRP bar 1 having a section in which the fibers configure a plurality of fiber distribution layers from the center of the FRP bar toward the outside.

Abstract: A rod-shaped FRP bar is manufactured with a fiber and a resin by using a nozzle (100) which includes an outer nozzle (11) having a penetration hole at its center and a plurality of middle nozzles (12) disposed at an inlet of the outer nozzle 11 so that one middle nozzle is located inside another middle nozzle with an interval. Fibers are supplied through a center hole of the middle nozzle located at an innermost location, through intervals between the middle nozzles and through intervals between the middle nozzles and the outer nozzle, thereby making a hybrid FRP bar (1) having a section in which the fibers configure a plurality of fiber distribution layers from the center of the FRP bar toward the outside.

Abstract: A technique and apparatus for integrally connecting a precast or prefabricated deck to a girder. A connection structure and method for connecting a precast or prefabricated deck to a girder, makes it unnecessary to form shear pockets in the deck and to remove existing shear connectors already installed to the girder, and makes it possible to easily adjust an elevation of the deck and to obtain excellent structural integration between the girder and the deck. The connection structure includes at least one rod shaped elevation adjustor inserted through the deck to support the deck spaced apart from an upper surface of the girder at a predetermined interval. A length of the rod shaped elevation adjustor projected toward an upper face of the girder can be changed to allow the deck to be supported. At least one shear connector is inserted through the deck.