33 results about "Structural rehabilitation" patented technology

Structural analysis automation allows the implementation of more detailed or accurate analysis methodology that reflects the actual behavior of the damaged or repaired structure and consequently improves the resulting damage disposition for example by Increasing the allowable damages and structural repairs applicability, increasing the allowable damage limits causing the reduction of unnecessary installation of structural repairs, optimizing repairs and increasing fly-by periods and inspection intervals.

The invention relates to an image restoring method, which comprises the following steps: firstly carrying out direction and experience model decomposition on a target image, allowing to draw damaged edge structure information in a given area to be restored according to the existing information, utilizing a frequency characteristic value obtained by the direction and experience model decomposition to calculate similarity so as to firstly finish edge structure restoration in the whole damaged area, then combining degree of confidence to calculate the priority of a residual filling area according to gradient characteristics of pixel points on the boundary of the area to be restored, and utilizing a frequency characteristic value obtained by the decomposition again to calculate similarity so as to finish the restoration of corresponding areas. The method not only can restore the structure and texture information in a larger-scale defective area, but also can restore the images with certain sheltering relation. The robustness in the restoring process is high, thus effectively preventing continuous expansion of error information.

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 a skylight-forming lining structure repair method for tunnels. A local skylight is formed after original flawed concrete is removed and then closed through layered mesh concrete after lining repair steel bars are embedded, and then the original flawed part and surrounding qualified linings are connected into a whole through anchor rods, steel bar meshes, steel bar drilling nails and mesh concrete. The skylight-forming lining structure repair method is mainly used for repairing the diseases that tunnel lining concrete severely lacks thickness or strength or voids are formed in the backs of the linings, is easy to implement and can be used for repairing lining structures, the repair method and process are fast and effective, the repair time can be greatly shortened, and the construction process safety and the structural safety can be guaranteed. The skylight-forming lining structure repair method is especially suitable for reinforcing the tunnel linings of railways in operation and can bring great economic benefits.

The invention discloses a distribution network expansion planning method based on strategy adaption differential evolution. A capital time value is considered, calculation is carried out according to equal amount installment payment capital recovery, a model is established by taking least annual investment and operation maintenance cost as a target, a differential evolution algorithm based on strategy adaption on the basis of the model is proposed, an optimal solution obtained by the algorithm is decoded, a planning line is drawn on an electric power GIS (geographic information system) platform according to a line number obtained by decoding to carry out structure repair to an individual, and the individual is enabled to satisfy a radiative network structure. An adaption evolutionary strategy is continuously updated in an iteration process to prevent the algorithm from being trapped in local optimum, and a planning process of a distribution network line is enabled to exhibit better interactivity, more intuitive planning result and flexibility in planning scheme regulation by a GIS.

A system and a method for enhancement of structural integrity is provided where a reinforcement system in accordance with the present invention is coupled with a compression side of a structure. The reinforcement system includes a tension layer with a high tensile strength coupled with an exterior surface of a compression layer with high compression strength, with the tension layer directly coupled with the structure.

The invention discloses a rapid checking method for damage of a modal test-based spaceborne antenna structure. The rapid checking method comprises the steps as follows: carrying out modal analysis on the spaceborne antenna structure to initially estimate modal parameters of the spaceborne antenna structure; establishing a rapid modal test system to detect modal characteristics of the spaceborne antenna structure before a vibration test; and finally, detecting the modal characteristics of the spaceborne antenna structure again after the vibration test. Whether the spaceborne antenna structure is damaged and damage position, damage form, damage degree and the like are judged through change trend of the modal characteristics. After the damaged spaceborne antenna structure is repaired, effect of repairing the spaceborne antenna structure is judged through detecting changes of the modal characteristics before and after being repaired. The rapid checking method has the advantages of rapidness, simplicity, easiness in quantification, lower cost and the like, can be widely applied to the spaceborne antenna structure and various space structures, and is strong in practicality and market competiveness in the field of the spaceborne antenna structure.

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 discloses a concrete structure repairing method based on carbonization hardening. The concrete structure repairing method comprises the following steps: cleaning an area that needs repairing; filling or smearing a repairing material, wherein the repairing material is prepared from the following components in parts by weight: 100 parts of a carbonized cementing material, 1 to 10 partsof a carbonization reinforcing agent, 5 to 70 parts of fine aggregate, 2 to 6 parts of a water reducing agent and 6 to 16 parts of water; sealing the to-be-repaired area by using a sealing device; and introducing carbon dioxide repairing gas into the closed to-be-repaired area. Based on a carbonization hardening principle, the repairing material is high in strength development speed and strengthgrade, and the repaired area can be quickly put into the service process. The volume of the repairing material can slightly expand in the carbonization process, the volume stability is excellent in the later service process, the repairing material is tightly combined with a matrix, the cohesiveness is high, and the falling phenomenon is not likely to occur. The fluidity of the repair slurry can bedesigned and regulated, the repair slurry is suitable for various processes such as smearing, spraying and irrigation, and the engineering applicability is high.

A repair patch for reworking an inconsistent area of a composite structure includes a patch body adapted to cover the inconsistent area and having a first patch region, a second patch region outside the first patch region and a first separation zone between the first patch region and the second patch region, with the first patch region, the first separation zone and the second patch region having increasing interlaminar fracture toughness from a center to an edge of the patch body; and a layer of adhesive for bonding the patch body to the composite structure.

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 relates to a frame column replacement and reinforcement construction method, and belongs to the technical field of completed building structure repair. The frame column replacement and reinforcement construction method comprises the steps of firstly, correspondingly arranging supporting steel columns in the four directions of to-be-replaced frame columns of the layer and the four directions of upper and lower frame columns, and arranging jacks between the supporting steel columns and beam bottoms; then removing all the to-be-replaced frame columns, wherein the tops are removed to the upper ground; then installing a column formwork, wherein the top of the column formwork is designed to be a horn mouth formwork higher than the upper ground; then pouring concrete and curing from the horn mouth formwork on the upper layer; and finally, removing the formwork and the supporting steel columns. The method has the advantages of advanced construction process, high construction technical content, high operability, close procedure connection and fast construction progress, the construction cost is reduced while the construction quality is guaranteed, obvious economic benefits are generated, and the method is worthy of application and popularization.