33 results about "Structural rehabilitation" patented technology

A structural repair includes a tell-tale optical witness that allows the health of the repair to be visually monitored. The optical witness includes a stress sensitive fluorescent dye that shows changes in local strain / stress patterns when the repair is subjected to electromagnetic energy of a particular wavelength. The dyes fluoresce more or less strongly as a function of the local stress / strain.

The invention discloses an ancient wood building repairing construction method which comprises the following steps: (a) performing scene investigation; (b) erecting a scaffold; (c) reinforcing a wood structure; (d) performing wood structure preservative treatment; (e) performing fireproof treatment on the wood structure; (f) performing field arrangement; (g) performing wood structure engineering acceptance. According to the method disclosed by the invention, the current situation in which the wood structure is positioned can be comprehensively mastered, the ancient wood building is subjected to reinforcement and protection through overall reinforcement and single wood reinforcement, the stress performance of the wood structure is improved under the condition that the original structure is not damaged, overall design of the ancient wood building is guaranteed, collapse of the ancient building is avoided, the corrosion resistance of the wood structure is improved due to the wood structure preservative treatment, the safety performance of the wood structure is improved due to fireproof treatment of the wood structure, the service life of the ancient building is prolonged, the aesthetic property of the ancient building is improved, and the method has obvious social and economic values.

The present invention discloses system and method for rehabilitation and enhancement of structural integrity of a reinforced concrete structures, comprising exposing beyond a deteriorated portion of a reinforcement where a non-deteriorated portion is visible, covering a surround of the exposed reinforcement by a tensile member that is coupled with an exterior surface of the reinforced concrete structure, and encapsulating the exposed reinforcement, with the encapsulation formed by the tensile member.

The invention discloses a foundation pit supporting and repairing structure. A repairing expansion ring is provided with two coiling ends, the two coiling ends of the repairing expansion ring can moverelative to each other, and at least two one-way locking mechanisms are arranged between the two coiling ends of the repairing expansion ring; the one-way locking mechanisms are used for limiting theretraction motions of the two coiling ends of the repairing expansion ring. A repairing frame comprises two mounting rubber rings which sleeve the repairing expansion ring and are arranged up and down, and a plurality of reinforcing steel bars are circumferentially arranged between the two mounting rubber rings at equal intervals; after an air bag body is inflated, the inner diameter of the repairing expansion ring can be driven to expand so that the mounting rubber rings can be tightly attached to the inner wall of a foundation pit support row pile, and the two mounting rubber rings, the outer wall of the repairing expansion ring and the inner wall of the foundation pit support row pile define a grouting space. A grouting pipe is used for introducing concrete slurry into the grouting space. The structure has the advantage of being high in foundation pit support row pile repairing convenience.

The invention provides a top-type prestressed reinforcement machine used in the field of building structure repair and reinforcement, which includes a housing, the right end of which is fixedly connected with a repair device, and four lifting blocks are evenly arranged at the lower end of the housing, so that The top of the housing is rotated with a rubberizing wheel, and the top of the housing is fixed with a feeding mechanism, and the feeding mechanism is connected with a tensioning wheel through carbon fiber cloth, and the tensioning wheel and the rubberizing wheel are in the same position. Horizontal plane, by setting the tension wheel to solve the problem proposed in the background technology when using carbon fiber cloth for reinforcement, if no prestress is applied to the reinforced carbon fiber cloth, only when the repaired component is subjected to secondary force and the structure is further deformed, the carbon fiber cloth can be used. Participating in the work, the strength utilization rate of the material is extremely low, the stiffness improvement is limited, and the improvement effect on the bearing capacity and deformation effect of the structural members is very limited.

The invention discloses a hollow identifier-based method for preserving a structure and enhancing real identifier hiding. The method comprises the following steps: obtaining a video frame of a to-be-hidden identifier from camera equipment; calculating a three-dimensional position and orientation, relative to an identifier, of a camera according to a two-dimensional position of the identifier; projecting a hollow area mask of a hollow identifier onto a plane where the identifier is located, so as to determine a to-be-repaired mask in a video picture; automatically detecting information of a background structure adjacent to a to-be-repaired area according to the to-be-repaired mask, so as to obtain background structure characteristics; repairing the detected background structure according to the background structure characteristics, so as to obtain a structure repair image and a structure to-be-repaired mask; and utilizing an existing image repair algorithm to carry out repair hiding on a non-structure identifier according to the structure repair image and the structure to-be-repaired mask, so as to obtain a final repair effect image. According to the hollow identifier, the to-be-repaired area after identifier removal is decreased, relatively strong structural performance can be preserved during the identifier hiding, and the identifier hiding efficiency and effect are improved.

The invention provides a method and system for rectifying partial translation of a large chassis structure. The position where the displacement deviation of the large chassis structure engineering is detected is defined as a pre-cut structure; the structural main bodies on both sides of the local translation pre-cut structure of the large chassis structure are supported; through limited The element software simulates and calculates, and strengthens the main body of the structure; introduces the historical monitoring data of the site as the initial condition into the finite element calculation software, and arranges new dynamic monitoring measuring points for the main body of the structure; performs stress release on the soil on the other side of the translation , to form an operable space for underground horizontal pushback; cut off the connection between the pre-cut structure and the main body of the structure on the vertical plane, and become a free and independent rigid body that can be pushed; install horizontal graded loading on the translation side of the free independent rigid body The device applies an external force to move a free and independent rigid body; after the movement is completed and reaches a stable state, the structural main body of the cut structure is repaired. After the repair is completed, the soil is backfilled and the deviation correction is completed.

The invention discloses a concrete structure repair method based on carbonation hardening, which comprises the following steps: cleaning the area to be repaired; filling or applying repair materials; the composition of the repair materials is calculated as follows in parts by weight: carbonized cementitious material: 100 Parts, carbonization enhancer: 1-10 parts, fine aggregate: 5-70 parts, water reducing agent: 2-6 parts, water: 6-16 parts; use sealing device to seal the area to be repaired; to the closed area to be repaired Introduce carbon dioxide repair gas. The invention is based on the principle of carbonization hardening, the strength of the repair material develops quickly, the strength grade is high, and it can be put into service quickly after repair; the volume of the repair material will expand slightly during the carbonization process, and the volume stability is excellent in the later service process, and it is closely combined with the matrix , strong cohesion, not easy to fall off; the fluidity of the repair slurry can be designed and adjusted to meet various processes of smearing, spraying, and pouring, and has strong engineering applicability.

The invention relates to a construction plant for repairing and strengthening tunnel lining structures. The construction plant is characterized by comprising a running gear, any ring construction device (1 to 8) required in the invention, a lifting device with a lifting platform, a control device for controlling the construction plant to work and a driving device for driving a supporting arm to rotate. The lifting device is installed on the running gear; the ring construction device and the driving device are both installed on the lifting platform; and the control device is installed on the running gear. The construction plant has the beneficial effects that the construction flow is mastered through the plant, the automatic degree is high, a person does not need to enter a tunnel for construction, and the labor cost is saved; the mechanized construction quality is higher than the manual construction quality, coating of epoxy resin glue is even, a carbon fiber sheet is tightly and smoothly bonded, and the repairing and strengthening effect and the construction efficiency are guaranteed; and the construction plant is suitable for repairing and strengthening construction of the tunnel lining structures in different sizes, suitable for construction under various weather conditions and engineering environments and good in engineering adaptability.

The invention relates to the field of building materials, and discloses a structure repair and reinforcement material for concrete chimneys and cooling towers and an application thereof. The repair and reinforcement material of the invention includes base surface repair mortar and / or concrete grouting liquid. Among them, the base surface repair mortar can be permanently integrated with the concrete, and make the repaired and reinforced concrete surface have excellent anti-carbonation, anti-seepage, anti-acid rain, anti-freezing and thawing capabilities; It can make loose concrete or concrete cracks and base surface repair mortar fully bond together and permanently integrate, thereby reducing the risk of loosening and cracking of repaired concrete again.