Abstract: A safety inspection system of an occupant evacuation elevator capable of having a laser range finder installed on each of an elevator rope and an elevator guide rail of the occupant evacuation elevator of a skyscraper and checking a length and verticality of each of the elevator rope and the elevator guide rail measured from the laser range finder to monitor slight distortion or location variation in real time, and accordingly, capable of easily performing a safety inspection of the occupant evacuation elevator, capable of performing the safety inspection of the occupant evacuation elevator in real time to operate the occupant evacuation elevator again in an operation mode of the occupant evacuation elevator according to an occurrence of a disaster situation in the skyscraper, and accordingly, capable of safely and quickly evacuating occupants and a method thereof are provided.

Abstract: An evacuation strategy support system using an occupant evacuation elevator (OEE) capable of supporting an evacuation strategy so that information on a number of occupants is recognized by real-time occupant monitoring and thus occupants on each floor may use stairs and the occupant evacuation elevator to safely and quickly evacuate when a disaster situation occurs in a skyscraper and thus the occupants use the occupant evacuation elevator to evacuate, capable of monitoring occupant information on each floor in real time and supporting calculation of an evacuation capacity of the occupant evacuation elevator to establish an evacuation strategy to allow safe evacuation and early reaction in an overall skyscraper to be performed, and capable of optimizing the calculation of the evacuation capacity of the occupant evacuation elevator applicable to an initial stage of a design of the skyscraper, and a method thereof are provided.

Abstract: Provided are a hollow composite beam using a dual-web and a construction method thereof. The hollow composite beam using a dual-web can secure space efficiency using a tendon installed in an internal space of a dual-web and can efficiently adjust a tensioning force using the tendon anchored by an anchoring wedge and a separable bolt, wherein the dual-web is formed as a web of a steel beam having a bottom flange on which a deck plate is supported.

Abstract: The present invention relates to a self-pouring mold system which ensures uniformity of a material by laterally pouring concrete into a mold installed on a side of a wall structure and minimizing a fall head generated when the concrete is poured to prevent bleeding, thereby ensuring uniformity of a fire-proofing material and adjusting a required fire-proofing coating thickness, and a method of fire-proofing, repairing, and reinforcing using the same.

Abstract: Provided are a hollow composite beam using a dual-web and a construction method thereof. The hollow composite beam using a dual-web can secure space efficiency using a tendon installed in an internal space of a dual-web and can efficiently adjust a tensioning force using the tendon anchored by an anchoring wedge and a separable bolt, wherein the dual-web is formed as a web of a steel beam having a bottom flange on which a deck plate is supported.

Abstract: An evacuation strategy support system using an occupant evacuation elevator (OEE) capable of supporting an evacuation strategy so that information on a number of occupants is recognized by real-time occupant monitoring and thus occupants on each floor may use stairs and the occupant evacuation elevator to safely and quickly evacuate when a disaster situation occurs in a skyscraper and thus the occupants use the occupant evacuation elevator to evacuate, capable of monitoring occupant information on each floor in real time and supporting calculation of an evacuation capacity of the occupant evacuation elevator to establish an evacuation strategy to allow safe evacuation and early reaction in an overall skyscraper to be performed, and capable of optimizing the calculation of the evacuation capacity of the occupant evacuation elevator applicable to an initial stage of a design of the skyscraper, and a method thereof are provided.

Abstract: A safety inspection system of an occupant evacuation elevator capable of having a laser range finder installed on each of an elevator rope and an elevator guide rail of the occupant evacuation elevator of a skyscraper and checking a length and verticality of each of the elevator rope and the elevator guide rail measured from the laser range finder to monitor slight distortion or location variation in real time, and accordingly, capable of easily performing a safety inspection of the occupant evacuation elevator, capable of performing the safety inspection of the occupant evacuation elevator in real time to operate the occupant evacuation elevator again in an operation mode of the occupant evacuation elevator according to an occurrence of a disaster situation in the skyscraper, and accordingly, capable of safely and quickly evacuating occupants and a method thereof are provided.

Abstract: An anchoring wedge with a separable bolt for a simple separation of the anchoring wedge from an anchoring device surrounding a tendon using the separable bolt through efficient adjustment of tensile force and a method of anchoring a tendon using the same are provided.

Abstract: An anchoring wedge with a separable bolt for a simple separation of the anchoring wedge from an anchoring device surrounding a tendon using the separable bolt through efficient adjustment of tensile force and a method of anchoring a tendon using the same are provided.

Abstract: The present invention relates to a self-pouring mold system which ensures uniformity of a material by laterally pouring concrete into a mold installed on a side of a wall structure and minimizing a fall head generated when the concrete is poured to prevent bleeding, thereby ensuring uniformity of a fire-proofing material and adjusting a required fire-proofing coating thickness, and a method of fire-proofing, repairing, and reinforcing using the same.

Abstract: In the disclosure, the CFT column includes external steel tubes including straight jointing portions in which inclined bolt grooves are formed to be vertically apart from each other and which are formed to extend from an end thereof to cover an overall extension length thereof, a straight bolt connection slot including straight plates connected by a connection bolt to be apart from each other and formed to extend, and configured to integrate the external steel tubes by allowing the connection bolt to be inserted into each of the inclined bolt grooves in which the straight jointing portions of the external steel tubes are in contact with each other and communicate with each other, concrete placed in the integrated external steel tubes and cured, and a wave-shaped punching steel plate.

Abstract: In the disclosure, the CFT column includes external steel tubes including straight jointing portions in which inclined bolt grooves are formed to be vertically apart from each other and which are formed to extend from an end thereof to cover an overall extension length thereof, a straight bolt connection slot including straight plates connected by a connection bolt to be apart from each other and formed to extend, and configured to integrate the external steel tubes by allowing the connection bolt to be inserted into each of the inclined bolt grooves in which the straight jointing portions of the external steel tubes are in contact with each other and communicate with each other, concrete placed in the integrated external steel tubes and cured, and a wave-shaped punching steel plate.

Abstract: Disclosed is a method of enhancing fire resistance of high-strength concrete by mixing a spalling reducer (fiber cocktail) into the concrete to control spalling and performing shear reinforcement of main steel bars using shear stiffeners based on a wire rope and spacers.

Abstract: Provided is a method for fire-proofing a composite slab constructed of beams installed between columns, a deck plate installed between the beams and slab concrete poured on the beams and the deck plate using a wire rope. Fire-proofing performance of the composite slab manufactured according to the present invention can be enhanced by transferring the load transferred from the deck plate to the upper portion of the beam via the wire rope.

Abstract: Provided is a method for fire-proofing a composite slab constructed of beams installed between columns, a deck plate installed between the beams and slab concrete poured on the beams and the deck plate using a wire rope. Fire-proofing performance of the composite slab manufactured according to the present invention can be enhanced by transferring the load transferred from the deck plate to the upper portion of the beam via the wire rope.

Abstract: Disclosed is a method of enhancing fire resistance of high-strength concrete by mixing a spalling reducer (fiber cocktail) into the concrete to control spalling and performing shear reinforcement of main steel bars using shear stiffeners based on a wire rope and spacers.

Abstract: Provided are an apparatus for testing a tensile strength under a high temperature condition and a unit for measuring elongation provided in the same. The apparatus for testing a tensile strength under a high temperature condition includes a base frame part, a test sample loader and a cylinder part connected to the base frame part and applying a tensile force to a test sample, and a heater for forming a high temperature condition to the test sample. The unit for measuring elongation includes a movable frame, a vertical bar, and a measurement head part connected to the vertical bar to measure elongation of the test sample and blocking heat from the heater.

Abstract: A non-welding type concrete-filled steel tube column utilizing a slot, in which an external steel tube is bended and retracted to allow a jointing portion thereof to be formed as a T-shaped bending part is provided. A slot is inserted into the T-shaped bending part in a sliding manner to construct in a non-welding manner, and a multi-perforated penetrating part can be formed on the external steel tube to secure fire resistance capacity thereof. A method of fabricating the same is also provided.

Abstract: A heating furnace for testing middle and long span structures including a modular partition structure to adjust an inner volume of the heating furnace, effectively performing a load-coupled heating test of full scale members such as a beam, a short column, a slab, a conjunction frame, and a deck plate. The heating furnace for testing middle and long span structures includes a partition unit formed of a refractory material and partitioning a heating space in a main body to block transfer of heat generated from one space to the other space. A test sample is installed in the heating space of the main body partitioned by the partition unit according to a size of the test sample, and then, heat and a compression force are applied to the test sample to perform a fireproof performance test. The fireproof performance test of structure members having various lengths of 4 m, 6 m and 10 m can be performed, and consumption of various utilities consumed during the test can be optimized.

Abstract: Provided is a jig for a compression test in a heating furnace capable of variously changing boundary conditions such as a both-end hinge, a both-end fixing, or one-end hinge and one-end fixing through simple attachment and detachment of a holder. Therefore, it is possible to easily implement hinge and fixing conditions of a test sample installed in a heating furnace using one jig, remarkably reducing time and cost consumed to install the test sample.