97 results about "Civil/structural engineers" patented technology

The invention provides a seismic isolation structure AMD control system based on the seismic energy storage principle, and relates to the technical field of structural engineering and damping control. The bottom of the building dissipates energy through the shock insulation support and the hydraulic inerter damper, earthquake input is converted into gravitational potential energy, mechanical energy and electric energy, and the energy storage module supplies energy to the active tuned mass damper arranged on the top of the upper structure. The system monitors structural response in real time through the acceleration sensor and the force sensor, the AMD intelligent control unit calculates and outputs control force capable of reducing upper vibration and generating reverse overturning bending moment, and therefore structural vibration is restrained and the shock insulation support is prevented from being pulled under the strong shock working condition, and the overall anti-seismic performance of the shock insulation structure is remarkably improved.

The invention provides a test device and a test method for whole-process fixed-proportion multi-axis loading, and belongs to the technical field of structural engineering tests, and the test device comprises a counter-force frame, an actuator and a load distribution mechanism; the load distribution mechanism adopts a rigid distribution body with a first stage and a second stage connected in series, and each distribution body is provided with a load input point and two load output points; the actuator is hinged with an input point of the primary rigid distribution body, and the output of the actuator is respectively transmitted to the secondary rigid distribution body and a plurality of loading points of a test piece to be tested through the first to fourth connecting rod groups, so that the load input by the single actuator is distributed to different positions of the test piece according to a set proportion. According to the invention, the load proportion of the multi-axis rod system node test piece in the whole process of elasticity, plasticity and damage can be stably maintained, so that a load-deformation whole-process curve and a failure mode under the action of a fixed-proportion multi-axis load can be completely obtained, and a reliable test means is provided for researching the bearing performance of the multi-axis rod system node.

The application discloses a concrete connecting structure and a construction method thereof, relates to the field of structural engineering, and aims to solve the problem of high maintenance difficulty of a reinforced concrete beam and a reinforced concrete structure connected through a hinged mode. The concrete connecting structure comprises a support, a beam and a connecting joint. The concrete support of the support and the concrete beam of the beam are distributed at intervals along a first straight line direction. One end of each node longitudinal reinforcement of the connecting joint is anchored and connected with the concrete support, and the other end of each node longitudinal reinforcement is anchored and connected with the concrete beam. A concrete connecting piece is filled between the concrete support and the concrete beam along the first straight line direction and connects the concrete support and the concrete beam. The node longitudinal reinforcement between the concrete support and the concrete beam is located in the concrete connecting piece, and the linear rigidity of the connecting joint is smaller than that of the beam. The concrete connecting structure is used for connecting the support and the beam.

The application belongs to the technical field of structural engineering, in particular to a fast-installed fabricated concrete structure beam-column joint and a construction method thereof, which comprises a stand column, a connecting block is fixedly installed on one side of the stand column, a steel column is fixedly installed at the top of the connecting block, a cross beam is installed on one side of the steel column, a steel ring is fixedly installed on the side of the cross beam close to the steel column, a correction assembly is arranged at the top of the cross beam, and a fixing assembly is arranged on the side of the cross beam away from the steel column. When the component positioning is performed, the correction assembly and the fixing assembly are used to correct the position of the cross beam, the cross beam is moved downward by the crane, the component positioning is completed, the problem that the crane needs to repeatedly correct the position when the prefabricated beam is hoisted to the design position by the hoisting machinery is avoided, the construction operation is not complicated, the efficiency is low, the correction of the position of the cross beam is more convenient and fast, and the correction of the position of the cross beam is more accurate.

This invention provides a prototype pipe pile shaking table test system for simulating the effects of foundation and superstructure, belonging to the fields of structural engineering, earthquake engineering, and foundation engineering. It includes a shaking table, a prototype pipe pile specimen horizontally arranged on the shaking table surface, a foundation action simulation component, a pile top axial compression simulation component, a pile cap simulation component, and a superstructure dynamic simulation component. The foundation action simulation component is fixed to the shaking table surface and covers the outside of the prototype pipe pile specimen. The pile top axial compression simulation component penetrates the inside of the prototype pipe pile specimen and extends to the outside of the pile bottom. The pile cap simulation component is connected to the top of the prototype pipe pile specimen, and the superstructure dynamic simulation component is positioned above the pile cap simulation component. This invention, using the above-mentioned test system, solves the problems of existing prototype pipe pile shaking table tests, such as large space requirements, high cost of foundation simulation, difficulty in loading real superstructures, inconvenient adjustment of working conditions, difficulty in comprehensively simulating pile-soil-structure interactions, and inability to accurately measure dynamic changes in pile axial force.

The invention relates to the technical field of structural engineering optimization design and intelligent model selection, in particular to a structured generative adversarial network-based pipe truss structural design and model selection method, which comprises the following steps of: obtaining pipe truss load data and corresponding structural design schemes under different load conditions; respectively coding the load data and the design scheme to obtain a multi-dimensional dynamic load feature vector and graph structure information; inputting the two schemes into a generator, and generating a design scheme and a model selection scheme by taking the minimum steel use amount as a target under the constraint of physical information; discriminating the generation scheme and the real scheme through a discriminator, calculating an adversarial loss, and alternately training the generator and the discriminator until convergence; and finally, inputting the preset load and the structure design scheme into a convergence generator, and outputting an optimal scheme. According to the method, the end-to-end mapping from the dynamic load to the optimal design and model selection scheme is realized, the design efficiency is remarkably improved, and the structural lightweight is realized while the engineering reliability is ensured.

The invention relates to the technical field of structural engineering, in particular to a wind power tower concentricity control method and system. The method comprises the following steps: acquiring installation reference data of a wind power tower; determining the offset of the circle center of the ring piece according to the installation reference data of the wind power tower, and obtaining the offset data of the ring piece; concentricity detection is carried out based on the ring piece offset data, and concentricity initial data is generated; performing deviation analysis according to the concentricity initial data to obtain deviation data; identifying a deviation abnormal ring sheet based on the deviation data, and obtaining abnormal ring sheet data; performing ring opening deformation detection according to the abnormal ring piece data to obtain ring opening deformation data; and performing stability analysis according to the ring opening deformation data to obtain stability data. Based on the structure engineering technology, the installation precision and the concentricity control rate of the wind power tower drum are improved.

This invention discloses a high-elasticity modulus concrete and its preparation method. The high-elasticity modulus concrete comprises, by weight, cementitious materials: volcanic rock: river sand: water: water-reducing agent in a ratio of 575:990:755:115:(20-22). The cementitious materials, by weight, comprise: cement: fly ash: silica fume in a ratio of (375-435):85:55. This invention utilizes volcanic rock as coarse aggregate to construct a rigid skeleton, and incorporates cementitious materials to leverage their synergistic physical filling and volcanic ash effect, optimizing the matrix density and interfacial transition zone structure. Combined with ultrasonic-assisted mixing, it achieves uniform dispersion and efficient hydration of fine materials. This concrete exhibits high compressive strength and high elastic modulus, demonstrates low shrinkage and creep characteristics, good volume stability, and excellent durability. It is suitable for high-rise and super high-rise buildings and large-span structural engineering, significantly improving structural stiffness, saving building materials, and increasing usable space utilization.

This invention discloses a shear force distribution demonstration device and measurement method, belonging to the field of structural engineering teaching technology. The device includes a base, a support mechanism, a loading mechanism, a demonstration mechanism, and a measurement mechanism. The support mechanism is a frame structure with sliding rails; the loading mechanism has replaceable supports with switchable constraints; the demonstration mechanism uses replaceable vertical columns with four-jaw chuck sleeves; and the measurement mechanism includes a strain measurement module, an S-shaped tension sensor, and a positioning ruler. This device adopts a fully modular, quick-release design, allowing for rapid switching between series and parallel systems, column constraint forms, and parameters. It simultaneously demonstrates the core knowledge points of inter-story force transmission in series and intra-story force distribution in parallel, verifying the shear force distribution law through measured data. This invention is easy to operate, combining visualization and quantitative measurement, effectively solving the pain points of abstract and difficult-to-understand traditional teaching methods, and significantly improving teaching effectiveness.

The utility model relates to the technical field of structural engineering tests, in particular to an assemblable shear connector test loading device which comprises an assemblable loading frame, a hydraulic jack is arranged in the assemblable loading frame, a lifting device is arranged on the upper side of the assemblable loading frame, and a shear connector is detachably connected below the lifting device. The assemblable loading frame comprises a main body counter-force frame, the main body counter-force frame is composed of a left frame beam and a right frame beam, bolt connecting plates are arranged at the connecting positions of the left frame beam and the right frame beam, the two sets of bolt connecting plates are connected through friction type high-strength bolts, and a hydraulic jack is installed on the inner side of the right frame beam through bolts. The steel-concrete shear connector push-out test device solves the problems that a steel-concrete shear connector push-out test is limited by space and is single in connector form, site occupation can be effectively reduced, cost is saved, and the loading frame has assemblability and expansibility so as to adapt to shear connectors of various sizes.

This invention discloses an early-strength, high-crack-resistant cementitious material suitable for water conveyance tunnel linings. It is composed of nano-silica, metakaolin, granulated blast furnace slag powder, cement, fly ash, limestone powder, and waste alumina whiskers. By controlling the particle size distribution of each component, the overall particle size distribution curve closely matches a pre-set mathematical model, thus achieving multi-scale filling from nanometer to micrometer scales. The early-strength, high-crack-resistant cementitious material, after uniform mixing of all components, exhibits a 3-day compressive strength >32 MPa and a flexural strength >5.6 MPa; a 28-day compressive strength >58 MPa and a flexural strength >9.0 MPa. Using standard mortar mix proportions, a circular restraint cracking test was conducted, and the 28-day crack width was controlled within 0.2 mm. This material combines rapid early strength development, excellent volume stability, and outstanding crack resistance, making it suitable for strongly restrained structural engineering.

This utility model discloses a support frame for building construction, relating to the field of building structural engineering technology. The support frame includes: a main upright, horizontal bars, a top support assembly, a fixing assembly, an inclined support assembly, and an auxiliary positioning assembly; the main upright and horizontal bars are hinged; the fixing assembly includes a first fixing plate and a second fixing plate; the first fixing plate and the second fixing plate are vertically fixed to the main upright at intervals; each of the first fixing plate and the second fixing plate has a mounting hole; the top support assembly includes a first support plate and a second support plate; the first support plate and the second support plate are vertically fixed to the horizontal bars at intervals. This utility model, through the coordinated design of its various structures, eliminates reliance on the ground, does not occupy passage space in doorways, and is suitable for uneven ground conditions; it enhances stability through hinges, triangular supports, and auxiliary positioning, ensuring the smooth pouring of door beams, making construction convenient, safe, and efficient.

The invention relates to the technical field of structural engineering and computational mechanics, in particular to a method and system for determining the axial pressure bearing capacity of a concrete filled steel tube at negative temperature, which responds to a bearing capacity calculation request, obtains working condition parameters of a target component and constructs a finite element simulation model for simulation analysis to obtain simulation bearing capacity data; the simulation bearing capacity data is compared with a standard theoretical value obtained through calculation according to a preset standard formula, a deviation coefficient is obtained, when the deviation coefficient is larger than a preset deviation threshold value, coefficient fitting is conducted through a preset size effect-negative temperature coupling correction model, a size effect correction coefficient and a negative temperature damage correction coefficient are obtained, and the size effect correction coefficient and the negative temperature damage correction coefficient are obtained. And based on the size effect correction coefficient and the negative temperature damage correction coefficient, the standard theoretical value is corrected, and the final axial compression bearing capacity is obtained. The problem of poor negative temperature adaptability caused by size effect and large-diameter deviation in the prior art is solved, and the structural risk caused by misjudgment of the bearing capacity is avoided.

This invention discloses a method for obtaining the wind-induced vulnerability curve of transmission towers based on failure probability, relating to structural engineering technology. The method includes the following steps: establishing a probability distribution model of the extreme response of the transmission tower to wind load; constructing a probability distribution model of the structural bearing capacity of the transmission tower; obtaining the failure probability based on vulnerability analysis using Latin hypercube sampling; plotting vulnerability curves with wind speed as the horizontal axis and failure probability as the vertical axis, drawing curves under different failure criteria to obtain vulnerability curves based on failure probability; performing vulnerability analysis in conjunction with engineering estimates to obtain the loss rate; plotting vulnerability curves; and finally, plotting a curve with wind speed as the horizontal axis and loss rate as the vertical axis to obtain vulnerability curves based on engineering estimates. This invention's method is characterized by its high efficiency in analytical calculation and is suitable for analyzing the failure probability and loss rate of transmission towers in engineering contexts.

This utility model discloses a reinforcement node structure for the perimeter of an opening in the shear wall of an existing building, belonging to the field of structural engineering technology. It includes the original shear wall, original floor slab, newly added concrete layer, equivalent through-wall bolts, structural adhesive, flat steel, angle steel, carbon fiber cloth, connecting plates, the newly added shear wall opening, and the original shear wall reinforcement. The original structural wall, slab, etc., are integrally cast. The newly added shear wall opening is demolished using non-destructive static demolition, with positioning dimensions based on the building's dimensions. After demolition, the original wall reinforcement is welded and anchored. The cross-section of the newly added steel structure is determined by calculation. The equivalent through-wall bolts pass through the original structural wall. This utility model illustrates a reinforcement method for the perimeter of an existing building with a newly added shear wall opening due to a change in building function. This method effectively reinforces and strengthens the shear wall weakened by the opening, with high construction efficiency, reliable nodes, minimal impact on the building, achieving the expected reinforcement goal, and effectively improving the structure's seismic performance.

The application belongs to the technical field of structural engineering and relates to a damage deformation controllable composite column-concrete beam fabricated node and a mounting method, which comprises a steel pipe concrete composite column, a prefabricated concrete beam and a self-resetting energy dissipation structure. The surface of the composite column is provided with a connecting plate and a second hinged plate, and the end of the prefabricated concrete beam is provided with an H-shaped steel and a second hinged plate, which are hinged through a pin shaft. A friction energy dissipation component is arranged between the first and second hinged plates and is used for friction energy dissipation under small earthquakes. The two ends of a plastic energy dissipation plate and a super-elastic reset plate are respectively detachably connected with the connecting plate and the H-shaped steel and are respectively used for plastic energy dissipation under medium earthquakes and super-elastic reset after earthquakes. The node is cooperated with multi-stage energy dissipation and self-resetting, realizes no damage under small earthquakes, repairable under medium earthquakes and no collapse under large earthquakes, is easy to replace after earthquakes and is suitable for high-intensity region fabricated buildings.

The invention discloses an ultra-high performance concrete regionalization performance evolution modeling method based on a crack state, and belongs to the technical field of structural engineering and material modeling, and the method specifically comprises the following steps: S1, obtaining crack information of a component in a service or test state; s2, performing response area division on the component based on the crack information; s3, respectively endowing different areas with differentiated material constitutive models and degradation parameters; s4, establishing a component three-dimensional model in the finite element simulation platform, loading regionalized material parameters and boundary / load conditions, and executing nonlinear static analysis or quasi-static analysis; and S5, outputting a simulation result, and evaluating the performance evolution trend of the component in different crack states. The ultra-high performance concrete regionalization performance evolution modeling method based on the crack state has the advantages of being high in adaptability and differentiated in assignment, and the performance evolution process of a cracked structure can be simulated more accurately.

The application discloses a kind of steel plate shear wall and structural calculation analysis method, it is related to structural engineering technical field, including first metal frame and second metal frame, first metal frame and second metal frame are connected by connecting mechanism, connecting mechanism includes connecting metal, longitudinal prestressed reinforcement and transverse prestressed reinforcement, both ends of connecting metal are fixedly connected with first metal frame and second metal frame respectively, both ends of transverse prestressed reinforcement are fixedly connected with first metal frame and second metal frame respectively, longitudinal prestressed reinforcement is located in the side of transverse prestressed reinforcement, the application utilizes connecting mechanism to implement preliminary external force buffering to steel plate shear wall, if stronger, then utilize connecting metal, longitudinal prestressed reinforcement and transverse prestressed reinforcement to carry out more deep level buffering, by multilayer buffering setting, it can guarantee the self-recovery performance of shear wall.

This invention relates to the field of structural engineering testing and discloses a method for the coordinated acquisition and fusion of deflection and strain in static load tests of structural components. The method includes: monitoring local strain physical quantities and calculating real-time strain rate; identifying the strain mutation initiation signal when the strain rate exceeds a threshold; retrieving the relative physical span between sensing nodes and the intrinsic stress wave velocity of the material; calculating the physical lag time; sending a hardware interrupt pulse carrying a time delay parameter to the deflection sensing node; driving the hardware circuit to activate a timing response matching the physical lag time; and capturing the macroscopic deflection physical quantity at the end of the timing. This invention eliminates the perception phase misalignment caused by spatial span by constructing a hardware sampling alignment mechanism driven by physical causality, ensuring that the acquired data conforms to the structural mechanics constitutive relationship, and improving the system's accuracy in identifying structural damage evolution characteristics.

The invention belongs to the technical field of rock soil and structural engineering, and discloses an anchor rod bearing performance prediction method and related device based on data driving and physical constraint, and the method comprises the steps: obtaining a short anchor test curve of a to-be-tested anchor rod; based on the short anchor test curve of the to-be-tested anchor rod, and in combination with a pre-constructed bond-slip model parameter identification model, obtaining multi-stage parameters of the bond-slip model; the pre-constructed bonding-slippage model parameter identification model is a decision tree model in which preset mathematical physical constraints are introduced; substituting the multi-stage parameters of the bond-slip model into the four-linear bond-slip control equation to generate a load-slip curve of the to-be-tested anchor rod; according to the load-slip curve of the to-be-tested anchor rod, obtaining a preset bearing performance index of the to-be-tested anchor rod, and taking the preset bearing performance index as a bearing performance prediction result of the to-be-tested anchor rod; according to the method, the test cost is greatly reduced, the prediction effect is improved, high universality can be kept, and a reliable basis is provided for design and optimization of the anchor rod.

The invention discloses a graded adjustable damper based on a Kresling origami concept, and belongs to the technical field of vibration reduction and seismic resistance of structural engineering. The device comprises an outer sleeve, an inner core connecting support, a Kresling paper folding unit, an end connecting piece and a friction disc. The Kresling paper folding unit is arranged between the outer sleeve and the inner core connecting rod and generates geometric torsion in the axial compression process, the paper folding unit drives the friction disc to generate circumferential sliding relative to the inner wall of the outer sleeve, and therefore friction energy consumption is achieved. Meanwhile, restoring force related to displacement is provided through geometric deformation of the folded paper, and the spring effect and the damping function are achieved at the same time. Relatively independent adjustment of rigidity and damping performance can be realized by adjusting geometric parameters of the origami and a friction interface material. The damper is light in structure, compact in construction, adjustable in performance and suitable for earthquake resistance and vibration reduction of structures such as buildings and bridges.

The application discloses a high-rigidity unbonded cooperative loading system and a construction method thereof, belongs to the technical field of structural engineering test, and is characterized in that opposite-side cooperative steel beams are arranged on opposite sides of a structure to be tested; top-loading steel beams are arranged in a cross shape in the opposite-side cooperative steel beams and are connected with the opposite-side cooperative steel beams at the ends; the top-loading steel beams are double-layer unbonded sleeve pipe assemblies, which comprise an inner square steel pipe and a peripheral round steel pipe sleeved outside the inner square steel pipe, and a preset gap is arranged between the inner square steel pipe and the peripheral round steel pipe; and horizontal prestressed tendons are arranged around the peripheral round steel pipe and are connected with the opposite-side cooperative steel beams at the ends. The high-rigidity unbonded cooperative loading system and the construction method thereof are adopted, the force transmission channel is separated from the fixed interface through the unbonded design of the pipe-in-pipe, and the problems of local buckling, deformation coupling and poor opposite-side cooperativeness of the traditional loading scheme in the super-large tonnage test are solved.

A data processing system and method for generating structural engineering documents using artificial intelligence (AI) is disclosed. The system comprises a memory storing a dataset of engineered structures, including instances of structural failures, and a machine learning model trained on the dataset to perform structural analysis and generate optimized design documents. The AI system receives input data specifying design requirements, simulates the structure's behaviours under various conditions, and generates structural engineering documents, including 3D CAD models, based on an optimal combination of materials. The system may include a feedback integration module for continuous refinement of the machine learning model, an analytics engine for performance monitoring, and an electronic filing integration for streamlining the design approval process. The AI system learns from past projects to rapidly generate code-compliant, cost-optimized, and resilient structural designs.

The invention provides an AI-based CAE post-processing result automatic interpretation and report generation method and system, and the method comprises the steps: S1, obtaining multi-format computer-aided engineering simulation result data through a system, and generating structured data through analysis and conversion; s2, automatically identifying key features in the structured data by adopting an artificial intelligence model in combination with a domain knowledge graph, generating a feature list and performing visual labeling; s3, on the basis of the domain knowledge graph, deducing physical causes and engineering influences of the key features, and generating an analysis conclusion; and S4, according to a preset template and a language model, generating a standardized report containing the key features and the analysis conclusion. According to the method, automation from data processing to report generation is realized, the manual intervention cost is remarkably reduced, the reliability and decision support capability of complex engineering problem analysis are improved, and the method is suitable for various scenes such as structural engineering and fluid engineering.

The invention discloses a 3D printing modular structural mechanics intelligent STEM teaching method and system, and belongs to the technical field of structural engineering education. According to the system, modular structural members including rod pieces, hinge joints, rigid joints and supports are manufactured through 3D printing, and various structural models are supported to be assembled and formed; using an image identification technology to automatically extract geometric parameters and topological relations of the assembly structure and generate a digital model; carrying out structure static analysis and response calculation by utilizing an open source finite element analysis library; load and deformation data are acquired in real time by integrating a force sensor and an image displacement tracking technology, and data transmission is realized through an MQTT protocol; and finally, a theoretical analysis result and experimental data are synchronously displayed through a visual interface, so that digitization, visualization and interaction of the structural mechanics teaching process are realized, and the teaching intuition and the practical ability of students are improved.

The application relates to a house building structure engineering reinforcing structure and relates to the related field of house reinforcing. The house building structure engineering reinforcing structure comprises a first reinforcing threaded rod, a second reinforcing threaded rod, a base plate, an adjusting assembly and a connecting assembly. The house building structure engineering reinforcing structure is characterized in that the first reinforcing threaded rod and the second reinforcing threaded rod arranged opposite to the first reinforcing threaded rod are arranged, the base plates are respectively arranged at the other ends of the first reinforcing threaded rod and the second reinforcing threaded rod, the distance between the first reinforcing threaded rod and the second reinforcing threaded rod can be flexibly adjusted by means of the adjusting assembly, different height house building structures can be adapted, meanwhile, the two are tightly connected in the adjusting process by means of the connecting assembly, the stability of the reinforcing structure is effectively improved, the problem that the traditional fixed-interval reinforcing structure cannot adapt to the requirements of various building heights is solved, the unification of flexible adjustment and stable reinforcement of the structure is realized, and the universality and safety of application are greatly improved.

The application discloses a rigidity design method of a self-standing reinforced steel chimney, and belongs to the technical field of structural engineering. Firstly, according to the chimney size of the preliminary design and the basic wind pressure value of the design, the standard value of the along-wind load and the equivalent static load of the transverse-wind vortex-induced resonance are respectively calculated, and based on the virtual work principle of structural mechanics, a theoretical solution of the top horizontal displacement of the chimney is obtained. Secondly, considering the influence of the deformation characteristics of the chimney shell and the like, the theoretical solution is multiplied by a maximum horizontal displacement correction coefficient to obtain a real value of the maximum absolute value of the horizontal displacement of the top of the chimney cylinder. Finally, whether the real value of the horizontal displacement exceeds the limit value of the specification is checked to determine whether the chimney wall thickness needs to be increased to improve the rigidity. The application is accurate and reliable, simple to calculate, can save the building materials as much as possible under the premise of ensuring the reliable rigidity of the chimney cylinder structure, and is helpful to obtain a reasonable and reliable rigidity design scheme of the self-standing reinforced steel chimney under the combined action of the along-wind load and the transverse-wind load.

This disclosure relates to a method, apparatus, electronic device, and storage medium for outputting information, and pertains to the field of structural engineering technology. The method includes: acquiring relevant parameters of a rectangular plate, including dimensional parameters, elastic mechanical parameters, and load calculation parameters; determining the initial settlement at each corner point of the rectangular plate; determining first and second coefficients corresponding to each side based on the boundary conditions of each side of the rectangular plate and a pre-set set of equations corresponding to each side; determining the structural parameters of the rectangular plate based on the relevant parameters, initial settlement, and the first and second coefficients corresponding to each side; and outputting the structural parameters. Applying this disclosure allows for the calculation of the structural parameters of a rectangular plate under any support conditions, improving the accuracy of structural parameter calculation.

The invention discloses a component residual bearing capacity evaluation method based on an entropy fuzzy analysis method, and belongs to the field of structural engineering. Existing evaluation methods such as subjectivity of an expert experience method and high cost of a load test method, a reliability theory depends on mass data, and weight of an existing fuzzy evaluation method is too subjective. The method comprises the following steps: simulating different damage rates of a component through a physical test, and establishing a dynamic critical value adjustment formula set; correcting the normalized matrix of the traditional entropy method to obtain dynamic entropy weight sets at different rates; collecting actual measurement damage data to construct a current and pre-judgment fuzzy judgment matrix, and combining the current and pre-judgment fuzzy judgment matrix into a compensation matrix; and a target layer fuzzy evaluation matrix is calculated in combination with the compensation matrix and the dynamic weight, a final reduction coefficient is obtained through correction, and then the residual bearing capacity is calculated. The problem of dynamic weight distribution under multi-damage coupling is solved, subjective dependence is reduced, damage rate changes are adapted, evaluation precision is improved, and the method can be used for structure maintenance decision making and emergency study and judgment after disasters.

The present application relates to the field of structural engineering-seismic mitigation technology, especially to a bearing-shock-absorbing-isolation multifunctional integrated node, comprising an H-shaped steel beam and a vertical load-bearing structure; one end of the H-shaped steel beam is connected with the vertical load-bearing structure through a three-way sliding node; the three-way sliding node comprises a pre-embedded part and a connecting angle steel; the pre-embedded part comprises an integrated pre-embedded plate and a connecting cylinder; the pre-embedded plate is pre-embedded in the vertical load-bearing structure; the connecting cylinder extends out of the vertical load-bearing structure and is connected with the connecting angle steel; the connecting angle steel is in a T-shaped structure, comprising a first plate body and a second plate body connected vertically; the first plate body is connected with the web of the H-shaped steel beam; the second plate body is connected with the connecting cylinder. When encountering moderate and strong earthquakes, such as relatively strong earthquakes, the multifunctional integrated node can effectively reduce the overall stiffness of the structure, making the response of the structure under the action of the earthquake more reasonable.