2389 results about "Earthquake resistance" patented technology

The invention relates to the field of building structure safety detection, and discloses a building structure anti-seismic performance monitoring method and system. The method comprises the following steps: acquiring multi-source response data such as acceleration, displacement, strain and inclination angle; obtaining a structure standard response based on wavelet denoising and standardization processing; adopting a multi-order modal recognition algorithm to extract structural dynamic characteristic parameters; performing structural damage evaluation based on the modal change index, and combining the yield strength, the load index and the displacement margin to calculate the residual bearing capacity of the structure; and finally, outputting an anti-seismic grade early warning signal. The system comprises a structure response acquisition module, a modal identification and damage evaluation module and a residual bearing capacity calculation and early warning module. According to the method, real-time quantitative analysis of the performance of the structure under the earthquake or load effect can be achieved, the evaluation precision is high, the applicability is high, and the wide engineering popularization value is achieved.

The invention relates to the technical field of concrete wall materials, and discloses a recycled concrete wall material and a preparation method thereof, the recycled concrete wall material comprises the following components by weight: 300-500 parts of recycled coarse aggregate, 200-400 parts of recycled fine aggregate, 150-300 parts of cement, 30-80 parts of fly ash, 3-8 parts of a water reducer, 5-15 parts of reinforced fiber, and 20-30 parts of a modified composition. Comprising the following steps: S1, raw material pretreatment, S2, mixing and stirring, S3, molding and curing, and S4, quality detection. The building waste is efficiently utilized, exploitation of natural aggregate is reduced, energy consumption and carbon emission in the production process are reduced, the landfill amount of the building waste and land occupation are reduced, the material strength and durability are good, the waterproof performance is improved, and the crack resistance and seismic resistance of the wall are enhanced.

The invention relates to the technical field of building information, and discloses an ancient building anti-seismic performance analysis and evaluation system based on BIM modeling, and the system comprises a building parameter obtaining module which is used for dynamically collecting component material attributes, structure connection states and historical damage parameters, recognizing structure weak links, and triggering a collaborative evaluation instruction; the modal feature analysis module and the seismic response simulation module are used for respectively extracting vibration modal feature parameters and seismic wave energy distribution parameters to obtain modal feature integrity indexes and dynamic stability evaluation values; the multi-source fusion judgment module synthesizes the indexes to generate a structure reinforcing or component repairing signal; the optimization parameter generation module is matched with the anti-seismic optimization strategy and generates structure reinforcement and node connection repair parameters; the system further comprises a damage coupling analysis module and a model iteration updating module, and monitoring of historical damage evolution and closed-loop updating of the BIM model are achieved. According to the system, precise evaluation and dynamic optimization of the anti-seismic performance of the historic building are realized.

The invention discloses a railway beam bridge anti-seismic toughness evaluation method and system, relates to the technical field of bridge engineering structures, and solves the technical problem that the prior art lacks an anti-seismic toughness evaluation method suitable for a railway bridge. The method comprises the following steps: establishing a full-bridge nonlinear finite element model to carry out vulnerability analysis; according to a vulnerability result, weighting and quantifying a component damage state and a passage function damage state by adopting a damage probability; determining post-earthquake repair time and a function recovery value, obtaining a post-earthquake bridge passing function recovery curve, finally obtaining a toughness index of the bridge, and dividing the function state of the bridge into three grades; according to the method, a whole process solution of'bridge design parameter-nonlinear time history analysis-probability earthquake demand model-vulnerability analysis-passage function recovery-toughness index-earthquake resistance toughness three levels' of the railway beam bridge is provided, and reference is provided for pre-earthquake design and post-earthquake emergency repair decision.

Disclosed in the present invention is an anti-seismic simulation method for an existing building by considering a real damage state. The method comprises: determining a quantified component damage index on the basis of an observed component damage state; determining a material damage index of a damaged component on the basis of the component damage index; determining key parameters of a constitutive law for a damaged material on the basis of the material damage index; establishing a finite element model of a damaged building on the basis of the constitutive law for the material of the damaged component; and assessing the seismic risk and anti-seismic performance of the damaged building on the basis of the finite element model. In the present invention, a constitutive law for a damaged material is incorporated into a fiber model in OpenSEES, so that rapid modeling of a damaged building can be realized, thereby effectively reproducing the real damage of an existing building; and by using a seismic vulnerability analysis method, rapid assessment of the seismic risk and anti-seismic capability of the existing building can be realized, thereby further providing support for formulating reasonable reinforcement and reconstruction strategies by related departments.

The invention discloses an existing building anti-seismic simulation method considering a real damage state. The method comprises the following steps: determining a quantized component damage index according to an observed component damage state; determining a material damage index of the damaged component according to the component damage index; determining key parameters of the damaged material constitutive according to the material damage index; building a finite element model of the damaged building based on the material of the damaged component; and according to the finite element model, carrying out earthquake risk and anti-seismic performance evaluation on the damaged building. According to the method, the constitutive of the damaged material is endowed to the fiber model of OpenSEES, so that rapid modeling of the damaged building can be realized, and the real damage of the existing building is effectively restored; and in combination with an earthquake vulnerability analysis method, rapid assessment of the earthquake risk and the earthquake resistance of the existing building can be realized, and further support is provided for related departments to formulate reasonable reinforcement and transformation strategies.

The invention discloses a shallow velocity model construction method based on joint inversion, and relates to the technical field of geophysical exploration. According to the method, high-frequency Rayleigh wave information and far-earthquake cross convolution waveforms in natural earthquakes are introduced into joint inversion, the influence of parameters on a speed structure model is considered, interference of other types of waves on Rayleigh waves is avoided, noise segments dominant by Rayleigh wave energy are effectively screened out, and the method is suitable for large-scale popularization and application. The difficulty of extracting the ellipticity of the high-frequency Rayleigh wave from a single waveform is effectively solved; the three-dimensional velocity structure model of the shallow imgabs0 # and the three-dimensional velocity structure model of the shallow imgabs1 # of the whole earth crust can be effectively simulated through joint inversion, especially for a sedimentary layer, research of deep structure scientific problems of a research area and exploration and development of oil and gas resources are facilitated, the seismic oscillation simulation precision can be improved, and earthquake resistance and disaster reduction work in an earthquake area can be assisted.

The invention discloses a recycled concrete interlayer-corrugated steel plate composite shear wall with recoverable functions. The anti-seismic property of the steel plate-concrete composite shear wall can be improved, but the steel plate-concrete composite shear wall is prone to local buckling or large deformation under the action of large horizontal loads. Frame columns are vertically arranged on a foundation; shear walls are arranged between the frame columns; a self-resetting device and a friction energy consumption device are arranged between the bottom of the shear wall and the foundation; the self-resetting devices are arranged at the bottom of the shear wall and on the two sides of the friction energy dissipation device. The foundation and the frame columns are fixed through column foot connecting pieces, and a lower end plate is arranged in the center of the foundation. Energy is dissipated through deformation of the disc spring, self-resetting is achieved through the self-resetting device after an earthquake, and residual deformation after the earthquake can be reduced; the energy dissipation beam section generates shear deformation due to the displacement difference between the shear wall and the frame column, the beam section dissipates energy through friction and pulls the SMA stranded wires to deform, and structural deformation is restored through elastic restoring force of the SMA stranded wires after an earthquake.

The invention discloses a concrete modular integrated building connecting system which comprises connection of a plurality of concrete modular box bodies, each concrete modular box body is composed of a prefabricated top plate, a prefabricated bottom plate, a prefabricated beam, a prefabricated shear wall and a prefabricated partition wall, and each concrete modular box body is formed through integral pouring; a reserved post-pouring area is arranged at the joint of every two adjacent box components, and notches are formed in the prefabricated top plates; connecting steel bars are in lap joint with the notches, and concrete post-pouring is conducted after the steel bars are in lap joint; u-shaped notches are formed in the prefabricated beams, upper and lower lap joint steel bars are laid at the U-shaped notches, and the two half sections of the prefabricated beams are connected into a whole after concrete is cast in place; a linear vertical notch is formed in the prefabricated shear wall between every two adjacent box bodies, the rib bodies of the wall bodies are connected in the linear notches, all the box bodies are stably connected through lap joint of the reinforcing steel bars and cast-in-place concrete of the cavities, and the prefabricated shear wall is suitable for high-rise buildings, can reduce the workload of a construction site and has good mechanical performance and anti-seismic performance.

The invention relates to the technical field of earthquake resistance of building structures, in particular to an assembly type self-resetting friction energy dissipation angle brace provided with a disc spring, which comprises a first connecting component, an elastic sliding component and a second connecting component which are sequentially and slidably connected along the same axis, and the elastic sliding component can be stretched or compressed along the axis direction. A first friction plate is arranged between the first connecting component and the elastic sliding assembly, and the first friction plate is used for providing damping during axial relative movement between the elastic sliding assembly and the first connecting component. According to the embodiment of the invention, when the first connecting component and the second connecting component generate relative axial displacement, the elastic sliding assembly slides and elastically deforms under the action of the limiting piece, part of earthquake energy is stored, meanwhile, part of earthquake energy is dissipated through the first friction plate, and when the elastic sliding assembly resets and releases the stored elastic potential energy, the earthquake energy is stored. The energy stored by the first friction plate is dissipated, so that the vibration of the building is dissipated in the friction of the first friction plate.

A staggered and stacked modular structure system is mainly characterized in that a plurality of rectangular module units are staggered and stacked to form a multi-layer rectangular main body structure, each rectangular module unit comprises a cross beam, a stand column and a connecting piece, each connecting piece comprises a connecting plate, a C-shaped inserting block and a C-shaped inserting cylinder, the C-shaped inserting blocks and the C-shaped inserting cylinders are connected to the connecting plates, and the C-shaped inserting blocks can be inserted into the C-shaped inserting cylinders; the two ends of the stand columns are welded to the connecting plates of the connecting pieces correspondingly, the two ends of the cross beams are welded to the C-shaped inserting cylinders of the connecting pieces correspondingly, grouting spaces are formed after the connecting pieces of every two vertically-adjacent rectangular module units are connected in an inserted mode, and the two rectangular module units are connected through grouting. In order to better transmit the bending moment of the stand column, the inserting block is designed to be in a C shape, and the inserting structure of the two connecting pieces can completely correspond to the section of the stand column through the C-shaped inserting cylinder, so that the tensile strength and the bending strength of the connected stand column are equal, the anti-seismic performance of the modular structure is further improved, and the service life of the modular structure is prolonged. Therefore, the safety of the staggered and stacked modular structure is improved.

The invention relates to a replaceable sliding anti-seismic device of a steel spring vibration isolator, which is used on a building foundation with multiple requirements of vibration isolation and seismic resistance, and belongs to the civil engineering industry. A replaceable sliding anti-seismic device of a steel spring vibration isolator comprises an upper structure, an upper buttress, a lower structure, a lower buttress, a central circular steel tube concrete column, a trapezoidal slidable connecting plate, a replaceable energy dissipation structure, a connecting pin, the spring vibration isolator, a vibration isolation rubber pad, a leveling steel plate and a bolt. The spring vibration isolators are connected with an upper structure and a lower structure through bolts to reduce the influence of vibration and small seismic load on an upper building, the trapezoidal slidable connecting plate is used for connecting the central circular steel pipe concrete column and the lower structure, and under the normal working condition, the replaceable energy dissipation structure supports the building and achieves the energy dissipation effect under the seismic load effect. After an earthquake, the use function can be quickly recovered by replacing the energy dissipation structure, and the concept of multi-stage vibration isolation and earthquake resistance is achieved. According to the invention, the comprehensive performance of vibration isolation and seismic resistance of the building is greatly improved.

The invention relates to the technical field of computer-aided anti-seismic analysis, and discloses an anti-seismic performance simulation test method and system for a concrete-filled steel tube structure, and the method comprises the steps: obtaining a parameter set of the concrete-filled steel tube structure; identifying a critical buckling mode and constructing a defect correction model; constructing a coupling damage index; constructing a numerical instability risk evaluation value based on the structure energy proportion; carrying out strong earthquake nonlinear time-history iterative solution; and outputting the anti-seismic performance index set and the coupling failure area. Compared with the prior art, the technical problem that Newton iteration divergence is prone to occurring in numerical solution under the coupling instability condition that traditional nonlinear finite element analysis is relied on for strong earthquake response calculation, especially when a steel pipe is subjected to local buckling and core concrete enters a high-pressure three-axis stress state is solved. Due to the fact that the local buckling and crushing damage coupling index and the self-adaptive time step length adjusting mechanism are constructed, the stability of the anti-seismic performance simulation result of the concrete-filled steel tube structure under the strong earthquake effect is improved.

The invention discloses a large-span arched steel truss with oblique supports and a construction method thereof, the steel truss is arched, the central structure of the steel truss is a pair of upper chords and a lower chord, the lower chord is located under the middle position of the pair of upper chords, and the two ends of each upper chord exceed the two ends of the lower chord in the chord direction; oblique supporting structures are symmetrically arranged at the two ends of a steel truss and used for supporting and installing the steel truss, and each oblique supporting structure comprises a reinforced steel concrete column, a steel column base, an A-shaped steel column and a back pulling steel rod, and the steel column base is directly or indirectly welded to the top end of a steel rib of the reinforced steel concrete column; the A-shaped steel columns incline upwards in the direction close to the chordwise midpoint of the steel truss, the two ends of the lower portions of the A-shaped steel columns are hinged to the pair of steel column feet respectively, the upper ends of the A-shaped steel columns are hinged to the ends of the lower chords, and the back-pulling steel rods incline upwards in the direction away from the chordwise midpoint of the steel truss, and the upper ends and the lower ends of the back-pulling steel rods are hinged to the ends of the upper chords and the steel column feet respectively. According to the steel truss, deflection deformation can be reduced, the anti-deflection performance is enhanced, the anti-seismic performance is improved, and steel is saved.

The utility model relates to the technical field of constructional engineering, and discloses an engineering structure anti-seismic reinforcing device which comprises a base, an adjusting groove is formed in the middle of the upper end of the base, and limiting grooves are formed in the middle of the front groove wall and the middle of the rear groove wall of the adjusting groove. An adjusting screw rod is movably connected between the middle of the left groove wall and the middle of the right groove wall of the adjusting groove through a bearing in a penetrating mode, an adjusting handle is fixedly connected to the middle of the right end of the adjusting screw rod, and an adjusting plate is connected to the middle of the outer surface of the adjusting screw rod in a threaded mode; and limiting rods are movably connected to the front part and the rear part of the right end of the adjusting plate in a penetrating manner. According to the anti-seismic reinforcing device for the engineering structure, the reinforcing position of a building can be adjusted by arranging the adjusting screw rod and the supporting frame, the use requirement is met, the fixing effect of the reinforcing device and the ground can be enhanced by arranging the ground inserting frame and the ground inserting cone, the stability and the anti-seismic property of the reinforcing device are improved, and the anti-seismic reinforcing device is suitable for being widely used.

The invention discloses a comprehensive evaluation method for the health state of concrete filled steel tubes. According to the method, a multilevel evaluation index system for the health state of the concrete-filled steel tube structure is constructed, and factors influencing the health of the structure are divided into a plurality of key indexes including the ultimate bearing capacity, the overall stability performance, the anti-seismic performance and the like. The method comprises the following steps: firstly, quantifying each index by using a membership function in fuzzy mathematics, and constructing a membership matrix; secondly, determining the weight of each index according to the influence of each index on the whole bridge; then, the health state of the concrete filled steel tube is evaluated through the fuzzy comprehensive evaluation model, the structure health level is generated, an accurate health state evaluation result is provided, and the method is suitable for health monitoring and evaluation of complex concrete filled steel tube structures such as bridges, tunnels and high-rise buildings. The method has the advantages of being high in evaluation precision, wide in application range and easy and convenient to operate, and a scientific basis is provided for safety management and maintenance decision making of the concrete-filled steel tube structure.

A medical device, comprising a housing, a combined modular structure which is formed by connecting a board card and an interface panel to a main bracket; a first opening arranged on the housing for the insertion of the combined modular structure; a first locking structure for locking and fixing the combined modular structure to the housing; a screen assembly; a second opening arranged on the housing for mounting the screen assembly, and a second locking structure for locking and fixing the screen assembly to the housing. The integral arrangement of a functional module of a medical device helps to improve the assembly precision between various components, and ensure the reliability of the connection between components. The housing adopts an integral structure, has good waterproof and dustproof effects as well as low production costs; the present disclosure facilitates the assembly of board card and other components, as well as module configuration and modular testing while also having good seismic performance.

The invention relates to the field of civil engineering materials, and particularly discloses C35 basalt fiber concrete for bridge abutments and a preparation method thereof.The C35 basalt fiber concrete for bridge abutments is prepared from 350-370 parts of cement, 170-185 parts of water, 570-620 parts of sand, 1140-1250 parts of gravel, 55-70 parts of fly ash, 40-55 parts of silica fume, 2-3.8 parts of a water reducing agent and 8-12 parts of a basalt fiber composite material. 6-8 parts of a waterproof agent and 3-6 parts of anti-seismic particles; the basalt fiber composite material is prepared from basalt fibers, mullite fibers and a polycaprolactone solution; the preparation method comprises the following steps: uniformly mixing the cement, the sand, the gravel, the fly ash, the silica fume and part of the water, adding the basalt fiber composite material, the anti-seismic particles and the waterproof agent, uniformly mixing, adding the water reducing agent and the rest of the water, uniformly mixing, pouring and curing to obtain the concrete. The material has the advantages of good shock resistance and high mechanical strength.

The utility model relates to a tensioning type stone masonry wall reinforcing structure which comprises L-shaped steel plates which are embedded and fixed in mortar joints of four corners on one side of a stone masonry wall. The two L-shaped steel plates are connected through a high-strength steel wire; the end part of the high-strength steel wire is tensioned and fixed on the L-shaped steel plate through a steel wire rope tapered end; the polymer mortar surface layer is arranged on one side of the stone masonry wall and covers the L-shaped steel plates and the high-strength steel wires; the high-strength steel wires are combined with the L-shaped steel plates and the polymer mortar, so that the lateral bearing capacity and the anti-seismic property of the stone masonry wall are improved, the overall stability of the stone masonry wall is remarkably improved, meanwhile, damage to an original stone masonry wall structure is avoided, the original building appearance is maintained, and the requirement for repairing historical buildings is met.

The invention provides a node connecting structure of a fabricated building and a construction method of the node connecting structure, and relates to connecting nodes for splicing prefabricated concrete columns with foundation column piers, ground beams, interlayer beams, top beams and columns. Beam column connecting joints connected with the ground beams are located at the position 0.6-1 m below the ground layer, and inter-column connecting joints are located at the position 0.9-1.2 m above the elevation of the middle axis of the interlayer beams. Each node adopts a built-in box-type steel pipe or a steel tenon-and-mortise component and is fixed through tenon-and-mortise matching of a steel tenon and a steel mortise groove and a high-strength bolt, so that rapid and accurate assembly of the beam column or between the columns is realized; and after connection is completed, a formwork is erected in a node area, high-strength concrete is cast in place, and a steel reinforced concrete stress component is formed. And the shear bearing capacity, the integrity and the anti-seismic property of the joint are obviously improved. Meanwhile, components are prefabricated in a factory and assembled in a dry mode on site, construction is convenient and fast, quality is controllable, and the structure is suitable for assembly type buildings with high-rise and high-seismic fortification requirements.

The invention discloses a self-prestressed steel beam with local constraint, a dry-type connecting frame structure, a beam slab system and a construction method.The self-prestressed steel beam is formed by connecting I-shaped steel I and I-shaped steel II in a staggered mode, and the inner surface of a lower flange of the I-shaped steel I and the inner surface of an upper flange of the I-shaped steel II are each provided with a row of studs on the two sides of a web in a welded mode; longitudinal steel bars are bound on the studs, prefabricated high-strength concrete is poured into a formwork in the flanges, webs of the first I-shaped steel and webs of the second I-shaped steel are in dry connection through connecting plates and high-strength bolts, and the self-prestressed steel beams and the prefabricated reinforced concrete columns are connected to form a truss frame. Two frames are connected through a prefabricated composite beam to form a frame beam-column system, a self-resetting device and a friction energy dissipation device are arranged at a beam-column joint, and a beam-slab system is obtained by combining a prefabricated double-T-shaped composite floor slab and a dry-type connecting frame structure, so that the problems of low anti-seismic property, difficulty in repairing after an earthquake and the like existing in traditional dry-type connection can be solved; and the structural integrity is improved.

The utility model relates to a sliding shock insulation modular building which comprises a module group forming a building main body. The building foundation is used for bearing the module group; the sliding layer is arranged between the module group and the building foundation and comprises an upper sliding interface and a lower sliding interface which are fixedly connected with the bottom of the module group and the top of the building foundation respectively, and a sliding medium arranged between the upper sliding interface and the lower sliding interface; and the sliding starting control part is connected with the module group and the building foundation and is used for controlling the sliding starting state. Compared with the prior art, the earthquake response of an upper modular building can be reduced, non-structural members in the modules can be protected, the module units are lighter in design, the connection between the adjacent modules is simpler, and the connecting structure adapts to the characteristics of various layouts and stress; the anti-seismic performance of the modular building is improved through simple sliding seismic isolation measures which are low in manufacturing cost and convenient to construct.

The invention provides a building group seismic loss probability assessment method based on seismic oscillation intensity random field simulation, and belongs to the technical field of seismic loss assessment. The method provided by the invention comprises the following steps: firstly simulating seismic oscillation of a region by adopting a seismic oscillation intensity random field simulation technology to obtain seismic oscillation intensity spatial distribution of different sites, and then estimating loss probability distribution of each building by utilizing a building anti-seismic performance model and a building vulnerability database. According to the method, the occurrence probability of extreme earthquake loss of a large-scale building group can be evaluated more quickly and accurately, and important support is provided for earthquake risk evaluation and post-disaster emergency decision, so that the disaster resistance and recovery capability of a city are enhanced, and the overall toughness of the city is improved.

The utility model relates to an integrated building module based on a combined formwork component, and belongs to the technical field of modular buildings. Comprising an integrated building module with a combined formwork vertical component and an integrated building module without a combined formwork vertical component. The integrated building module with the combined formwork vertical components is composed of the combined formwork vertical components, combined formwork beams, a bottom plate, a top plate and partition walls. The integrated building module without the combined formwork vertical component is only composed of a combined formwork beam, a bottom plate, a top plate and a partition wall. The integrated building module can effectively solve the problems that in the existing assembly type technology, an integrated building module is large in dead weight and poor in anti-seismic performance, the wall is large in thickness, the indoor area is occupied, integration, assembly and production are tedious, and cost is high.

The invention relates to the technical field of power cables, and provides a cross-linked polyethylene insulated power cable with an anti-seismic function, which comprises a cable body, the cable body is composed of a plurality of stranded wires, an insulating layer is arranged outside each wire, a filling layer and a belting layer are sequentially arranged outside the plurality of wires, and the insulating layer is arranged outside the plurality of wires. The cable comprises a cable body and further comprises a sheath layer, fixing seats, upper fixing frames, supporting assemblies and buffering assemblies, the sheath layer comprises an inner sheath and an outer sheath, the cable body is provided with a plurality of fixing seats, each fixing seat is provided with one upper fixing frame, the supporting assemblies are arranged between each fixing seat and the corresponding upper fixing frame, each fixing seat is provided with one buffering assembly, and the buffering assemblies are arranged on the supporting assemblies. According to the technical scheme, the problem that in the prior art, when a cross-linked polyethylene insulated power cable is arranged near a factory workshop or in a tunnel or other positions where vibration is likely to be generated, vibration can affect the cable through the ground or a supporting structure, and the cable is damaged is solved.

The invention relates to the technical field of earthquake resistance of corridor supports, and discloses a variable-rigidity high-altitude corridor support which comprises a first mounting steel plate, a second mounting steel plate and a third mounting steel plate. Locking pieces connected with the third mounting steel plate are arranged at the four corners of the first shock insulation support, the four corners of the second shock insulation support and the four corners of the second mounting steel plate in a penetrating mode, and shearing grooves are formed in the locking pieces; the first shock insulation support and the second shock insulation support are both used for conducting shock absorption on the high-altitude corridor support so that variable stiffness control over the high-altitude corridor support can be achieved. According to the invention, a set of multi-level rigidity-variable seismic isolation support is constructed, and based on a unique mechanical response mechanism of a multi-level seismic isolation system, when the seismic action intensity is in an increasing trend, the interaction force between the high-altitude corridor and the towers on the two sides is in a decreasing situation, and the seismic isolation effect is improved. Due to the characteristic, the anti-seismic toughness and stability of the whole structure in earthquake disasters are remarkably improved, and reliable guarantee is provided for the safety performance of a high-rise building structure in a complex earthquake environment.

The present invention discloses a fuel cell engine, which comprises a fixed frame. The fixed frame includes a first side fixing plate, a second side fixing plate, a third side fixing plate and a fourth side fixing plate; a fuel cell, which includes a housing, an electric stack, a distributor, and a first end cap and a second end cap that are opposite in the third direction; a hydrogen supply system, which is installed on the first side fixing plate; a cooling circulation system, which is installed on the first side fixing plate; an air supply system, which is installed on the third side fixing plate; and a power distribution device, which is installed on the second side fixing plate. The fuel cell engine according to the embodiment of the present invention has the advantages of high integration, compact structure, high volume power density, small volume, easy assembly, high strength, good seismic resistance, etc.

The invention belongs to the technical field of anti-seismic performance detection, and discloses an anti-seismic performance detection device based on a building structure, which comprises a support base and a movable plate arranged above the support base and used for supporting, the movable plate is provided with a support disc used for connecting a test workpiece, the movable plate is rotatably connected with the support disc, and the lower end of the movable plate is provided with a transmission plate. A first sliding rail is connected to the lower end of the movable plate, a telescopic assembly is connected between the first sliding rail and the transmission plate, transmission rollers are connected to the bottom of the telescopic assembly, limiting plates are arranged on the two sides of the supporting base, limiting sliding grooves are formed in the limiting plates, and the transmission rollers extend into the limiting sliding grooves. According to the anti-seismic performance detection device based on the building structure, the anti-seismic performance of the building structure can be more accurately detected by setting vibration simulation in various directions, and vibration in different directions can be generated in different time periods according to different arrival time of various seismic waves generated by an earthquake to detect a building structure model; and the accuracy of detection data is improved.

The utility model discloses an anchor rod device for municipal construction, and relates to the technical field of municipal construction engineering. Comprising an anchoring head, a counterbore is formed in the anchoring head, the anchoring head is in threaded connection with an outer sleeve through the counterbore, an insertion rod is in threaded connection with the interior of the outer sleeve, a conical surface concave shoulder is arranged at the bottom end of the insertion rod, grooves are formed in the side walls of the periphery of the anchoring head, the grooves are communicated with the counterbore, claw bodies are hinged into the grooves, and the tail ends of the claw bodies are attached to the conical surface concave shoulder. According to the anchor rod device for building municipal administration, the inserting rod is lifted upwards by screwing the inserting rod, at the moment, the conical surface concave shoulder at the bottom end of the inserting rod moves upwards, the claw can be driven to expand outwards from the periphery of the anchoring head, and therefore the friction force between the anchor rod piece and a soil body or rock is enhanced, and the anti-drawing capacity of the anchor rod piece is effectively improved; the arranged guide rods, backing rings and buffer springs have certain buffering performance, deformation and displacement of the structure can be reduced, overall connection of the structure is enhanced, and the anti-seismic performance and stability of the structure are improved.