129 results about "Engineering structures" patented technology

This invention provides a method for predicting the service life of concrete under alkali-aggregate reaction failure. Based on the kinetics of alkali-aggregate reaction expansion and the theory of temperature acceleration, the method first determines the activation energy Ea of the alkali-silica reaction expansion of reactive aggregates through accelerated tests at different temperatures. Then, concrete specimens are prepared using actual engineering mix proportions, and accelerated temperature tests are conducted in a simulated pore solution at 70℃ to obtain the time t1 required for the expansion rate to reach the failure threshold of 0.040%. Finally, based on the Arrhenius equation, a mathematical model is established comparing the failure time of the concrete specimens under accelerated temperature conditions with the failure time of the concrete in the engineering structure, and the service life t2 of the concrete under engineering conditions is calculated. This invention solves the problems of existing technologies lacking a unified physical basis and being difficult to quantitatively extrapolate, improving the engineering applicability and universality of service life assessment, and providing a scientific basis for the long-term safety evaluation of major infrastructure such as hydraulic engineering and transportation.

This invention discloses a dynamic method for determining the stability of support structures in deep foundation pit construction, relating to the field of engineering structure monitoring and diagnosis technology. The method includes: collecting multi-source heterogeneous data of the deep foundation pit support structure for preprocessing to generate a complete reconstruction sequence; constructing stability labels and combining them with the complete reconstruction sequence to build training samples, constructing a master decision model, using the training samples as input to the master decision model, outputting a predicted probability distribution, and selecting a final decision label; obtaining auxiliary labels based on the final decision label, and performing label consistency determination to obtain consistent-inconsistent results; then, based on the inconsistent results, extracting predicted probabilities for penalty correction, and performing label credibility-untrustworthiness determination to obtain credible-untrustworthiness results. This invention improves the accuracy, robustness, and engineering feasibility of determining the stability of support structures.

This invention relates to the field of vibration control technology for civil engineering structures. It discloses a triaxial magnetorheological quasi-zero stiffness intelligent vibration isolation bearing for large-span spatial structures and its control method. The bearing includes a top plate and a bottom plate. A middle plate is fixed to the bottom of the horizontally stacked magnetorheological elastomer vibration isolation / vibration unit. A vertical magnetorheological quasi-zero stiffness vibration isolation / vibration unit is fixed to the bottom plate and slidably connected to the inner side of the middle plate. The control method uses sensors to collect the structural response in real time, identifying three operating conditions: high-frequency micro-vibration, low-frequency moderate vibration, and large earthquake safety. It automatically switches control modes to achieve coordinated adaptive control of vertical damping and horizontal stiffness and damping. This invention combines high static load-bearing capacity with low dynamic stiffness, enabling triaxial decoupling and multi-mode intelligent coordinated control, and is suitable for broadband vibration control of roof supports for large-span spatial structures.

The application discloses a kind of concrete crack automatic identification method and robot, belong to civil engineering structure health monitoring technical field.The present application includes obtaining the gray image of the surface of concrete to be detected, and the gray median and gray standard deviation of the gray image are calculated;According to the gray median and gray standard deviation, determine an adaptive threshold;With fixed interval, the pixel of gray image is sampled, and the sampling point with the gray value lower than the adaptive threshold is marked as candidate crack pixel point;With candidate crack pixel point as seed point, region growth is carried out;When the pixel number of any growth formed connected region exceeds the preset upper limit, the growth of the region is terminated;The length-width ratio of the minimum circumscribed rectangle of each connected region is calculated, and the connected region with the length-width ratio greater than the set shape threshold is determined as crack region, and the position information of the crack region is output.The present application can realize identification efficiency and accuracy on the embedded microcontroller with limited resources.

This application relates to the field of mining anchoring technology, and provides a method and system for predicting the residual strength of anchor cables after corrosion. In this method, the corrosion influence parameters of the anchor cable in a corrosive environment are determined based on the changes in the physical parameters of the root wires constituting the anchor cable before and after corrosion. Based on the corrosion influence parameters and a pre-constructed residual strength model of the anchor cable after corrosion, the residual strength of the anchor cable after corrosion is predicted. Thus, by establishing the relationship between the residual irregular shape of the anchor cable after corrosion and its mechanical properties, the residual strength of the in-service anchor cable after corrosion can be predicted without conducting destructive pull-out tests. This provides a direct and reliable technical basis for the safety assessment and life prediction of in-service corroded anchor cables, and provides core support for the safe operation, remaining life prediction, and maintenance decisions of engineering structures.

This invention belongs to the technical field of steel for engineering structures, and particularly relates to a method for producing ultra-thick pile pipe steel with excellent low-temperature toughness based on hot rolling. The chemical composition of the steel, by weight percentage, includes: C: 0.05%-0.07%, Si≤0.08%, Mn: 0.7%-0.9%, P≤0.018%, S≤0.008%, Ti: 0.03%-0.04%, Als: 0.02%-0.050%, Nb: 0.008%~0.018%, N≤0.0050%, with the balance being Fe and unavoidable impurities. The hot-rolled coils of ultra-thick pile pipe steel with good low-temperature toughness are produced by hot rolling, replacing medium-thick plates with ultra-thick specifications, improving production efficiency and reducing costs. The mechanical properties, low-temperature toughness, and weldability of the steel plate meet the user's requirements.

This invention discloses an adaptive tree neural network structure and processing method for construction project management. The structure includes: an engineering data input module for collecting structured and time-series data of construction projects; a tree structure encoding module for constructing a multi-level decision tree structure based on project hierarchy and encoding node features; a recurrent neural network module for performing time-series modeling of node feature sequences to predict project status; an adaptive feedback module for feeding back the prediction results to the tree structure encoding module to update node features or weights, forming an adaptive closed loop; and an engineering management output module for generating construction management decision information based on the prediction results. This invention solves the problems of missing engineering structure representation, discontinuous time-series prediction, and lack of dynamic adjustment capability in existing technologies by integrating hierarchical engineering structure modeling and time-series prediction and introducing an adaptive feedback mechanism, thereby improving the intelligence level of construction progress prediction, resource scheduling, and risk warning.

A maintenance device based on the lifting and transfer of the roller system of a track-type roller press includes: tracks laid on the ground on both sides of the roller system, extending along the transfer direction of the roller system; at least two mobile trolleys, each adapted to and installed on the two tracks and moving along the length of the tracks; a frame mounted on the mobile trolleys; and a hydraulic lifting mechanism integrated into the frame. The tracks are two in number and symmetrically arranged about the central axis of the roller system. Their starting point extends to below the roller press frame, and their ending point extends to the outside of the factory building. This eliminates the need for openings in the floor, thus avoiding damage to the factory's civil engineering structure. Furthermore, the track length can be flexibly adjusted according to the actual maintenance needs of the factory, meeting the requirements for long-distance transfer of the roller system from the frame to the outside of the factory building. The mobile trolleys correspond one-to-one with the tracks, consisting of two independent trolleys, left and right, with identical structures and specifications and mirror-image arrangement. This adapts to the structural characteristics of the roller system, where the span between the two bearings is large and a flatcar cannot be used, and can stably support the roller system.

This invention relates to a kind of displacement amplification self-centering friction damper. The device uses gears to convert the axial deformation into the rotation of the friction-disc, and the friction device engages in friction at the edge of the friction-disc, then the displacement can be amplified and therefore it can reduce the frictional force and prolong the service life of friction components. At the same time, through gear transmission, the friction force provided by the friction device can increase with the increase of relative displacement, then it can provide suitable energy dissipation capability under different working conditions. Additionally, the device can automatically return to its initial state by disc-spring, and also provides self-centering capability for the structure simultaneously, advantageous in reducing residual deformation of the structure under severe earthquake. Compared with existing technologies, this invention has a better energy dissipation effect and is suitable for vibration control in engineering structures.

This invention discloses a numerical simulation method for the corrosion rate of high-strength steel under marine stress environments, belonging to the field of corrosion and protection technology. The method includes the following steps: establishing a geometric model for simulation and meshing the model; setting material properties, including corrosion kinetic parameters and basic mechanical property parameters; applying boundary conditions to the geometric model to simulate the actual stress state of the high-strength steel plate; formulating a kinetic expression formula for the electrochemical reaction to describe the electrochemical behavior during corrosion; and performing a corrosion kinetic-mechanical coupling analysis to calculate the distribution of corrosion current, corrosion potential, and local corrosion rate. This invention, by constructing a multiphysics model, can accurately extrapolate and predict the dynamic corrosion rate of high-strength steel under different stresses and environmental parameters. It provides crucial theoretical basis and data support for the design, life assessment, and maintenance decisions of marine engineering structures.

The application discloses a damaged replaceable anti-seismic connecting device and method of an external friction energy dissipation plate, and relates to the technical field of civil engineering structure anti-seismic damping, which comprises a pre-buried anchoring assembly pre-buried in a concrete structure, the pre-buried anchoring assembly is connected with a large steel plate by penetrating through the concrete structure, the large steel plate is arranged on one side of the concrete structure, a bearing assembly is arranged between the large steel plate and the concrete structure, and the bearing assembly is penetrated by the pre-buried anchoring assembly; the end of the pre-buried anchoring assembly is fixed by a fastening assembly, and the fastening assembly is arranged on the outer side of the large steel plate. The application adopts the above-mentioned damaged replaceable anti-seismic connecting device and method of an external friction energy dissipation plate, all core friction energy dissipation components are externally arranged, and only the fastening assembly needs to be removed after an earthquake, so that the damaged large steel plate or friction gasket can be quickly and independently replaced, the main concrete structure does not need to be demolished, and the post-earthquake repair cost and construction difficulty are significantly reduced.

The application relates to the technical field of civil engineering structure health monitoring, and discloses a reinforcing steel bar corrosion quantitative monitoring method based on an electromagnetic field and a probe type monitoring device, wherein the electromagnetic field is generated by a first probe and a second probe in the probe type monitoring device, and the first probe and the second probe are arranged on the two sides of a target position of a reinforcing steel bar to be measured; the method comprises the following steps: detecting the current magnetic field intensity on the two sides of the target position through the first probe and the second probe, and determining the magnetic field intensity change rate of the current magnetic field intensity relative to a preset reference magnetic field intensity; based on the reinforcing steel bar spacing between the reinforcing steel bar to be measured and an interfering reinforcing steel bar, a sensitivity correction coefficient is determined, and the theoretical sensitivity is corrected based on the sensitivity correction coefficient, wherein the theoretical sensitivity refers to the sensitivity of the magnetic field intensity change on the two sides of the target position to the reinforcing steel bar corrosion when the reinforcing steel bar is not interfered by the interfering reinforcing steel bar; and based on the magnetic field intensity change rate and the corrected sensitivity, the corrosion rate of the target position is determined. The application can achieve the technical effect of improving monitoring precision.

The utility model provides a kind of modularization prestressed steel strand quick positioning locking device, belong to building construction accessory technical field.The device includes steel strand and the anchoring sleeve that its outside is set.The two ends of anchoring sleeve are separated into four groups of clamping pieces by several notches, and the inner arc surface of clamping piece is integrally made of tooth, and tooth is glued with rubber pad.Anchoring sleeve outer wall is equipped with shell, and two groups of locking structure are equipped between shell and anchoring sleeve two ends, and the locking structure is connected with the outer arc surface of clamping piece by moving from inside to outside.By locking structure, anchoring sleeve two ends clamping piece synergistic effect, form double locking mechanism, enhance locking reliability and balanced distribution torque.The rubber pad of the inner arc surface of clamping piece is closely combined with steel strand, realize gapless contact, significantly improve friction, enhance locking effect.The design effectively solves the problem that existing device is easily damaged due to spring fatigue or locking force deficiency, ensures the durable and reliable anchoring of prestressed steel strand, avoids prestress loss, guarantees engineering structure safety.

The application discloses a kind of environmental simulation test device of FRP reinforced concrete beam considering multi-factor coupling, belong to civil engineering structure durability test equipment technical field, the device includes integrated environmental box system, multi-mode loading system, multi-field coupling measurement and control system and auxiliary support system;Integrated environmental box system includes double-layer insulation stainless steel structure, and multi-mode loading system is integrated with environmental box;Multi-field coupling measurement and control system is with PLC as core, realizes multi-parameter centralized control, data acquisition and multiple safety protection.The application adopts the above-mentioned environmental simulation test device of FRP reinforced concrete beam considering multi-factor coupling, realizes the independent regulation and control of mechanical load, temperature and humidity field, corrosion medium, freeze-thaw cycle multiple factors and collaborative coupling, meets the durability test demand of FRP reinforced concrete in complex environment such as cold region, coastal area, industrial corrosion, improves test authenticity, stability and automation level.

The present application provides a management assistance system capable of highly accurately implementing comparison of a building or civil engineering structure as a management object and design data. The management assistance system includes a storage device (130) that stores design data that is data corresponding to a building information model (BIM) or a civil engineering information model (CIM), a measurement device (110) that measures a building or civil engineering structure in a non-contact manner in a real space and generates point cloud data, and a computer device (120) that processes the design data and the point cloud data, wherein the computer device (120) performs processing of generating surface data representing a surface of a shape represented by the point cloud data, collating combined data combined from the point cloud data and the surface data with the design data, and updating the design data based on a result of the collation.

The present application relates to a kind of engineering structure deformation prediction methods based on two-stage clustering-deep learning, comprising the following steps: real-time collection different measuring point structure deformation time series data in actual engineering;The collected structure deformation time series data is preprocessed;Two-stage clustering method is used to cluster all monitoring points, and the two-stage clustering includes two stages of physical quantity clustering and measuring point clustering;According to the clustering result, the multi-channel time series data of the same kind monitoring point is input into the corresponding multi-channel multi-step prediction model trained, and the multi-channel future multi-step structure deformation prediction result is output.Compared with prior art, the prediction result of the present application makes full use of the correlation between different measuring points, has good generalization ability for actual engineering, and can effectively deal with complex data environment in actual engineering.

The application belongs to the technical field of engineering structure detection data analysis, and discloses a bridge modal parameter identification method and device combined with vehicle dynamic weighing. First, the influence line of the bridge is tested and obtained, and the bridge response under the vehicle excitation is tested and obtained. The weight of the vehicle is obtained by fitting the bridge response and the influence line, and then the input excitation of the bridge is obtained. Then, the frequency response function matrix of the bridge is obtained by the input excitation and the output response. The maximum singular value curve and the singular vector are obtained by singular value decomposition of the frequency response function matrix of the bridge. The frequency corresponding to the peak value of the curve is the natural frequency of the bridge, and the corresponding singular vector is the vibration mode of the bridge. The frequency corresponding to the half peak value of the curve is the half power point. The damping ratio of the bridge is obtained by bringing the half power point into the damping ratio calculation formula. In the process of bridge operating modal parameter identification, the vehicle excitation is solved for the identification of the bridge modal, and the identification accuracy of the bridge modal parameters is improved.

The application discloses a dispatching collaborative optimization method and system based on a segmented agent and a feasible domain evaluation. The method comprises the following steps: obtaining engineering structure and equipment dispatching parameter space and operation conditions, and constructing physical conservation constraints; predicting first safety constraint responses and second safety constraint responses by using a segmented agent model for joint parameter combinations meeting the constraints; dividing a feasible dispatching domain based on flow rate responses, extracting volume indicators of quantitative dispatching scheme proportions, and extracting spatial interaction indicators of quantitative equipment area influence distribution; solving optimal structure parameters by taking minimum outer layer structure engineering quantity as an objective and taking the above two indicators meeting performance thresholds as constraints; and outputting recommended equipment operation strategies by taking minimum inner layer flow rate as an objective in the feasible dispatching domain corresponding to the optimal structure parameters. The application can realize double-layer nested collaboration of physical structure design and equipment operation dispatching, and can improve the cross-condition dispatching adaptability and cross-region response field decoupling capability of an engineering system.

The present application relates to the technical field of engineering structure data processing, and discloses a machine learning prediction system based on the anti-deformation ability of a combined steel beam. A three-layer inverted index structure is established, including a macro beam segment level, a meso connection level and a micro weld level, and each layer of index nodes is bound with a feature matrix and a spatial coordinate anchor point. The input load space distribution is analyzed to calculate the influence gradient field, cross-scale retrieval is performed in the index structure according to the gradient field, and the meso connection features and micro defect features falling within the threshold range are extracted. The above features and macro overall features are mapped to a global three-dimensional voxel grid for spatial coordinate alignment and splicing to generate an aggregated feature vector, which is input into a multi-task learning network to synchronously output overall deflection prediction values and local buckling deformation prediction values. Through cross-scale retrieval and voxel alignment and splicing, the input features dynamically adjust the proportion of local feature data according to the load action area, overcoming the defect that local features are submerged in macro features in matrix operation.

The present application belongs to the technical field of engineering structure optimization design, and discloses a kind of topological optimization method and equipment of three-dimensional curved surface composite material thin shell structure, steps are as follows: S1, using conformal geometric mapping algorithm three-dimensional curved surface grid is mapped to the parameterization coordinate of two-dimensional plane parameter domain angle-preserving, obtain the mapping relationship of three-dimensional curved surface composite material thin shell structure from three-dimensional curved surface to two-dimensional plane;S2, construct shell element stiffness matrix of finite element grid;S3, in two-dimensional plane parameter domain, with the relative density of shell element and the direction of element as design variable, establish the topological optimization model of finite element grid based on conformal mapping;S4, based on moving asymptote method and topological optimization model to update design variable;S5, based on the design variable and mapping relationship of updated inversion mapping back original three-dimensional curved surface, thus obtain the three-dimensional configuration of optimal material distribution of three-dimensional curved surface composite material thin shell structure.The present application improves optimization efficiency.

This invention relates to the field of vibration control and health monitoring technology for civil engineering structures, specifically to an integrated device and control method for damping and vibration-induced de-icing of cable structures. This application achieves intelligent de-icing through a single device that combines damping vibration suppression with visual guidance, possessing a complete closed-loop control capability encompassing perception, decision-making, execution, and verification. It employs a progressive high-order modal excitation strategy, utilizing the complex local deformation of high-order modes to more effectively break down ice layer adhesion, fundamentally solving the industry problem of poor low-order modal excitation performance. Furthermore, the system can automatically select and upgrade the optimal mode according to different icing conditions, achieving online optimization of the de-icing strategy.

This utility model discloses a hollow sandwich GFRP pipe, belonging to the field of engineering structure technology. The hollow sandwich GFRP pipe comprises several individual pipe components, each including a GFRP pipe, a high-strength square steel pipe, and a UHPC layer. The GFRP pipe is the outermost layer, the high-strength square steel pipe is the innermost layer, and the UHPC layer fills the space between the GFRP pipe and the high-strength square steel pipe. A first flange and a second flange are fixed to one outer end of the GFRP pipe. Adjacent individual pipe components are interlocked by the first and second flanges and secured with bolts. The outer side of the GFRP pipe is threaded with oblique studs, and a perforated steel plate is fixedly installed at the inner end of the GFRP pipe. This design effectively solves the problem of corrosion of traditional high-strength steel in marine environments, enhances the performance of the internal UHPC, ensures the stability and rigidity of the entire structure, reduces the cost of subsequent periodic maintenance and repair, and is suitable for normal use in marine engineering structures.

The present application relates to a kind of flexible graphene-based self-sensing fiber reinforced fabric and preparation method and construction method, belong to civil engineering structure reinforcement and structural health monitoring technical field.The fabric includes non-monitoring area and monitoring area;Non-monitoring area is continuous fiber reinforced fabric, and monitoring area uses sandwich laminated structure.The laminated structure includes successively continuous fiber reinforced fabric layer integrated with non-monitoring area, graphene-based sensing layer and encapsulation layer;After electrode is set at both ends of graphene-based sensing layer, electrical signal can be exported, and real-time monitoring can be realized under complex working conditions such as large strain and curved surface reinforcement.The fabric keeps the mechanical property of traditional fiber reinforced fabric while realizing long-term stable in-situ monitoring using graphene conductive network, and has weather resistance and sensitivity advantage.Preparation process and construction process are simple and can be implemented, suitable for the reinforcement and full life cycle health monitoring of bridge and building and other engineering structures.

The application relates to the technical field of computer-aided design. A power engineering design scheme optimization method is disclosed, which comprises the following steps: receiving a power engineering design scheme, establishing an engineering structure three-dimensional model according to component geometric parameters, spatial positions and connection relationships; constructing a construction deviation model corresponding to an engineering construction process, introducing the construction deviation model into the engineering structure three-dimensional model to simulate the construction process, and obtaining state change information of each structure node in the construction process; identifying the propagation of the construction deviation in the engineering structure and the construction risk caused by the construction deviation according to the state change information; generating a candidate design adjustment scheme based on the construction deviation propagation and the construction risk, and obtaining an optimized design scheme through simulation screening and outputting corresponding modification prompts. The application can identify the construction deviation propagation and risk evolution in the design stage, and automatically generate an optimized design scheme, so as to improve the constructability and safety of the power engineering design scheme.

This invention discloses a high-durability, self-cleaning reflective thermal insulation coating and its preparation method. The coating is prepared using a specially designed and synthesized grafted modified silicone resin combined with fluorocarbon resin, high-reflectivity filler, and thermal insulation filler. By introducing coupled polysiloxane segments with numerous amide structures and end-capped with catechol groups into the cured segments of the fluorocarbon coating in a grafted and suspended state, highly stable microphase separation of the coating system is achieved, effectively improving the matrix density and coating adhesion. Combined with the original strong reflective thermal insulation performance, this results in ultra-high durability and self-cleaning properties. This technology has a clear mechanism of action, a simple production process, and excellent performance, making it suitable for large-scale production. It enables the coating to maintain its long-term reflective thermal insulation and temperature control performance under complex and harsh environments, which is of great significance for green and sustainable temperature control and protection of buildings and engineering structures in various complex environments.

The invention relates to the field of ocean engineering structures, and provides a floating foundation for an offshore facility and a construction method of the floating foundation. The floating foundation for the offshore facility comprises at least one composite component, the composite component comprises an internal load-bearing framework, and the internal load-bearing framework comprises a steel framework composed of a plurality of limbs; and the outer coating layer comprises a concrete layer wrapping the inner load-bearing framework, and the outer coating layer and the inner load-bearing framework are cooperatively stressed. According to the floating foundation for the offshore facilities, the composite advantages of steel and concrete are exerted, the economical efficiency, durability, structural efficiency and construction convenience of the floating foundation in the whole life cycle are remarkably improved, and the floating foundation is suitable for various offshore facilities such as floating wind power, deep sea oil and gas platforms, offshore energy hubs and future floating cities.

The utility model discloses a kind of wind-resistant and earthquake-resistant steel pipe stand structures with reinforcing rib, it is related to steel pipe stand technical field, including steel pipe column, the inside of steel pipe column is equipped with reinforcing rib mechanism, the reinforcing rib mechanism includes cross reinforcing rib, the inside of steel pipe column is fixedly connected at equal intervals in the cross reinforcing rib, the outside of cross reinforcing rib is fixedly connected with inclined bracing plate in symmetry, the inner wall of steel pipe column is fixedly connected with inclined bracing plate, the inside of cross reinforcing rib is fixedly connected with connecting ring, weight-reducing groove is set in the inside of cross reinforcing rib and inclined bracing plate.The utility model discloses a kind of wind-resistant and earthquake-resistant steel pipe stand structures with reinforcing rib, by the reinforcing rib mechanism being set, reinforcing rib and inclined bracing plate improve bending stiffness, pressure relief groove reduces wind pressure impact, both ensure the stability of structure under wind load and earthquake effect, and also prolong service life, fully meet the strict requirements of modern engineering structure to safety and durability.

The application discloses a tunnel construction whole-process evaluation method, system and equipment under a sensor network, relates to the technical field of geotechnical engineering structure health monitoring, and comprises the following steps: multiple types of sensors are arranged at each stage of tunnel construction and operation; multiple-source monitoring data streams of settlement, temperature, soil pressure and stress and strain are collected; after denoising, space-time alignment and fusion processing, a multi-dimensional data set is constructed in combination with geological construction and material data; a special dynamic evaluation model is established in stages; the safety state of the structure is quantitatively evaluated; and real-time early warning of an abnormal state is completed according to the evaluation result. The application solves the technical problems that the whole-life-cycle segmented evaluation is fragmented, the multiple-source monitoring data is chaotic, the hidden risk identification is lagging, and the safety state cannot be dynamically quantified in the safety control of tunnel construction, achieves dynamic control of the safety state of the whole process of tunnel construction, early warning of potential hidden dangers, and provides a reliable basis for construction risk prevention and control.

The application belongs to the technical fields of civil engineering and machinery, and discloses a self-adaptive multi-direction tuned mass damper and a working method thereof. In the horizontal direction, the self-adaptive multi-direction tuned mass damper realizes the adjustment of the horizontal frequency and the damping ratio by adjusting the effective swing length of a suspender and the length of a high-damping impact head from a U-shaped mass block; in the vertical direction, the self-adaptive multi-direction tuned mass damper realizes the adjustment of the vertical damping force and the vertical stiffness by the interaction of a roller and a trapezoidal viscoelastic material layer and the adjustment of the angle of a spring and an upper suspension steel plate. Compared with a traditional tuned mass damper, the self-adaptive multi-direction tuned mass damper has the advantages of simple structure, low energy consumption and low cost, and can realize multi-directional vibration reduction and decoupling, adjustable self-vibration frequency, self-adjusting damping ratio and other functions, and overall improves the effect of the tuned mass damper in the vibration suppression of civil engineering structure dynamic multi-disaster.