167 results about "Beam cross section" patented technology

The invention relates to the technical field of section design, and discloses a shipyard steel bent frame column and beam section design simulation method and system. The method comprises the following steps: classifying and storing the historical data of the shipyard steel bent, establishing an experience library and extracting initial section parameters; inputting a parametric modeling system to generate a geometric model and a load condition; obtaining an internal force envelope value based on finite element analysis; obtaining a stress ratio and a displacement ratio according to standard combination and checking calculation; using an NSGA-II algorithm to optimize section parameters; and modeling and marking based on an optimization result, and generating a structure optimization scheme and a design drawing. The problems that in the prior art, preliminary section type selection of a steel bent frame structure lacks system optimization, a large amount of manual adjustment is needed in the design process, the overall design efficiency is low, and the material utilization rate is low are effectively solved, and automatic, refined and multi-target comprehensive optimization of steel bent frame column and beam section design is achieved.

The invention provides a bridge structure monitoring system and method combined with active early warning, and the method comprises the steps: obtaining dynamic stress data and static stress data of each bridge monitoring point in a bridge section, and constructing a plurality of fatigue stress spectrums according to the dynamic stress data of each bridge monitoring point; determining a damage accumulation coefficient of a bridge structure at each bridge monitoring point according to a stress distribution difference between the fatigue stress spectrums, and extracting a plurality of monitoring key points by combining all the damage accumulation coefficients with dead load characteristics of a bridge section; determining the rigidity of the bridge structure corresponding to each monitoring key point according to the static stress data of each monitoring key point, and determining a confidence interval for performing active early warning on the structural damage of the bridge section according to all the rigidity of the bridge structure; and performing structural damage early warning on the bridge section based on the confidence interval and the current bridge stress at each bridge monitoring point. Accurate early warning of bridge structure damage can be realized under the influence of multi-dimensional load response.

The invention discloses a cable-stayed bridge cross brace optimization system based on system reliability and an intelligent algorithm, which relates to the technical field of bridge engineering, and comprises a multi-source parameter input module used for collecting and processing data such as a main beam section, stay cable parameters, a strain sequence, a vibration sequence, a satellite cloud picture, a traffic monitoring flow, laser point cloud and the like; and outputting the structured design data, the monitoring data flow, the dynamic load spectrum, the probability distribution model and the construction error correction parameters. According to the invention, all-dimensional data such as design, monitoring, load, materials and construction errors are integrated through the multi-source parameter input module, and multi-level and dynamic reliability evaluation is carried out on the component, the subsystem and the system level by using the system reliability analysis module, so that the component failure probability, the system reliability index time sequence and the like can be output; therefore, the real reliability level of the cross brace of the cable-stayed bridge in the whole life cycle is reflected more accurately, and the one-sidedness of a traditional method is avoided.

The claimed invention discloses a catapult launcher for a fixed-wing unmanned aerial vehicle (UAV), the launcher comprises a starting rail having an I-beam cross-section that comprises two sections that are foldable / unfoldable and mounted on adjustable supports, a carriage that is equipped with wheels that are configured to interact with an internal surface and with an external surface of the starting rail and that is equipped with a UAV interaction mechanism that is represented by fasteners and joint elements that interact with adapters that are fixed to a UAV's fuselage and made in a form of two plates, and a lower edge of the plates is produced with grooves so as to enable interaction with the fasteners and with detents in a form of hooks that are tangent to joint elements. The launcher is equipped with elastic cords that are symmetrically arranged along the starting rail and fixed to the carriage and to the starting rail, and with a release device. A beginning of the starting rail is provided with an inclined section, and the release device joins to the carriage on the inclined section and the carriage to the UAV, their reliable fixation and start of the carriage movement upon activation of the release device. This configuration ensures reliability and portability of the launcher as well as a safe UAV launch at a short acceleration distance.

The invention provides an integrated measurement device, a beam parameter quality control method and related equipment, relates to the technical field of particle radiotherapy, and is used for rapidly measuring beam parameters of pencil beam scanning points in arc proton therapy in real time. Comprising a plurality of measurement units which are arranged at intervals along a beam transmission direction, the plurality of measurement units are periodically and repeatedly arranged to form a two-dimensional orthogonal sampling grid, and time-space distribution data of a beam cross section are synchronously acquired through one-time beam output; the analysis module is used for processing the beam parameters output by the signal acquisition and processing module in real time, and the beam parameters comprise the scanning point position, the beam spot size, the charge quantity and the range; beam parameters of a pencil beam scanning point can be rapidly measured in real time, and accurate and efficient measurement is ensured; according to the matched beam parameter quality control method, the accuracy and reliability of arc proton treatment are improved through operations such as multi-angle measurement, parameter correction, quality control interval optimization and real-time dynamic adjustment.

The embodiment of the invention provides a shipyard steel framed bent scheme automatic optimization method and system. The method is applied to the technical field of buildings and comprises the following steps: selecting an initial size of a shipyard steel bent column beam section and bent design information based on engineering experience library data, and constructing high-precision input characteristics based on factory design information; based on the high-precision input features, constructing a physical constraint graph neural network, and predicting an initial design scheme meeting the physical constraint; and carrying out multi-objective reinforcement learning optimization on the initial design scheme meeting the physical constraint, and carrying out dynamic adjustment in a virtual simulation environment to obtain optimized steel bent design parameters. In this way, according to the method, the shipyard data are monitored in real time, the graph neural network is constructed for feature extraction and parameter optimization, the optimal steel frame parameters are obtained in dynamic adjustment, and the practical value is high.

The invention discloses a steel-wood composite structure joint construction method, which belongs to the technical field of laminated wood bar planting, and comprises the following steps: forming a plurality of bar planting holes in a wood arched beam in a finish machining manner in a factory; after the reinforcing steel bars are pretreated, steel limiting pins are welded to the two ends of the reinforcing steel bars; glue is injected into the glue injection holes in the two sides of the steel bar planting hole at the same time, the wood arched girders are tightly jacked towards the inner side after glue injection is completed, pressing force is provided, and it is guaranteed that the multiple wood arched girders are tightly connected. By means of the mode, the steel-wood joints are fixed through the temporary pin shafts, the number of the pin shafts is half of the total number of the bolt holes, the bolt holes are adopted for positioning, the joints are fixed after all the bolt holes are aligned, and the joint installation precision is guaranteed; staggered trepanning at different heights is carried out on the cross section of the wood arched beam, so that weakening of trepanning on the wood cross section is reduced; steel limiters are welded to the ends of the steel bar beams to ensure that the steel bars are located in the centers of the steel bar planting holes, and uniform flowing of steel bar planting glue in the hole channels is kept while the steel bar planting hole channels are not blocked.

The invention discloses a cooperative control method for stay cable force and main beam line shape of an extradosed cable-stayed bridge. The cooperative control method comprises the steps that cable force data, main beam line shape data and main beam section internal force monitoring data in the construction stage are collected; based on a preset cable force adjustment judgment criterion, whether cable force adjustment needs to be started or not is judged; when triggering conditions are met, a geometric nonlinear analysis model considering cable-beam-tower cooperative deformation is established, and a cable force-main beam line shape sensitivity influence matrix is generated; screening K stay cables as key adjustment objects by adopting an influence matrix column vector L2 norm sorting method, and performing global optimization based on a simulated annealing algorithm to obtain an optimal displacement mean square error and an optimal cable force adjustment amount; and according to the key adjustment object and the cable force adjustment amount, multi-cable synchronous grading tensioning work is carried out. The invention provides a systematic and intelligent solution for the construction control of the extradosed cable-stayed bridge, and has remarkable economic benefits and social benefits.

The invention belongs to the technical field of building assistive devices, and particularly relates to a large-span steel structure truss high-altitude roller sliding device which comprises a supporting mechanism, a clamping mechanism, a moving mechanism and an auxiliary mechanism. The supporting mechanism comprises a cross beam, the cross section of the cross beam is of an I-shaped structure, and beam grooves are symmetrically formed in the two sides of the cross beam in the length direction of the cross beam. And the clamping mechanism is mounted above the cross beam and is used for fixing and dismounting the truss. A spline rod is in sliding fit with a spline sleeve, the distance between a movable frame and a fixed frame is adjusted in combination with a second self-locking threaded rod, and cross beams with different thicknesses are adapted; in the auxiliary moving assembly, a second double-end self-locking screw drives a sliding block, a linkage movable rod and an auxiliary wheel to adjust the distance, beam grooves with different depths are adapted, the auxiliary wheel forms track constraint, and the auxiliary moving assembly can be rapidly installed on different supporting mechanisms within a certain range.

The invention discloses a frame structure of a variable cross-section high-load special vehicle and the special vehicle, and belongs to the technical field of special vehicle chassis, the frame structure comprises a first longitudinal beam and a second longitudinal beam which adopt a plurality of sections of stepped structures with different cross section forms, and the first longitudinal beam and the second longitudinal beam are symmetrically arranged; a comprehensive reinforcing cross beam and a plurality of cross beams are arranged between the first longitudinal beam and the second longitudinal beam; the first longitudinal beam and the second longitudinal beam in the middle of the frame are provided with a first upper-mounted combined support, and one side of the first longitudinal beam in the middle of the frame is provided with a second upper-mounted combined support; a supporting rotary disc flange with a hole formed in the middle is arranged above a first longitudinal beam and a second longitudinal beam at the tail of the frame, and a walking board structure is arranged on the peripheral side of the supporting rotary disc flange. The frame structure of the high-load special vehicle is light in weight, modularized and convenient to maintain, the loading capacity and stability between frames are improved by optimizing the cross section of the longitudinal beam, designing the modularized support and reducing the weight of the structure, and the problems that a traditional frame is large in weight, poor in stability, complex in installation and the like are solved.

The utility model discloses a frame auxiliary supporting structure and a combined table, and the frame auxiliary supporting structure comprises a main frame which comprises two parallel transverse supporting beams and longitudinal supporting beams arranged at the two ends of the transverse supporting beams; the auxiliary supporting assembly comprises a plurality of auxiliary supporting beams vertically arranged between the two transverse supporting beams and a plurality of supporting columns supported at the bottoms of the auxiliary supporting beams, the auxiliary supporting beams are sheet metal parts, the sections of the auxiliary supporting beams are U-shaped, openings of the auxiliary supporting beams face downwards, and a first mounting groove is formed in an area defined by the middles of the auxiliary supporting beams; the tops of the supporting columns are inserted and positioned in the auxiliary supporting beams through the first mounting grooves; a first reinforcing piece is arranged at the end of the top of the supporting column and comprises a mounting part connected with the end of the top of the supporting column and supporting arms extending from the mounting part to the two sides, and the supporting arms are located on the sides of the end of the top of the supporting column and located outside the auxiliary supporting beam. According to the frame auxiliary supporting structure and the combined table, the manufacturing cost of the table is reduced, the table is not prone to shaking left and right, and the stability is good.

The invention discloses a bridge section temperature field calculation method fusing infrared imaging and finite element analysis, and belongs to the technical field of bridge temperature measurement. According to the method, unmanned aerial vehicle acquisition equipment with an infrared lens is used for performing surface infrared temperature image acquisition on upper, lower, left and right sections of a to-be-measured cross section of a bridge at multiple moments; spatial mapping of temperature information is realized through format conversion and temperature information extraction of the infrared image; on the basis of a finite element analysis platform, the extracted surface temperature data are imported into a bridge cross section numerical model, temperature field distribution solving is carried out through a solid heat transfer and stress analysis function, and accurate reconstruction and temperature effect analysis of a bridge cross section temperature field are achieved. According to the invention, non-contact rapid monitoring and accurate calculation of the bridge temperature field are realized, and reliable technical support is provided for health assessment of a bridge structure.

The invention discloses an existing concrete beam bridge crack diagnosis method based on an influence line sparse coefficient, which is characterized in that force method graph multiplication and a crack nonlinear damage function are substituted into an analytical solution for solving, and finite element simulation relates to respiration crack simulation. A nonlinear spring is adopted to simulate crack opening and perform grid division and encryption processing on the tip of the crack, bridge section rigidity change caused by the breathing crack is accurately simulated by constructing a crack rigidity damage function, and the model is introduced into an influence line analytical solution to obtain a nonlinear influence line of the cracked bridge. In combination with a sparse coefficient representation method, damage position and damage degree information is extracted from influence line data, and accurate positioning and quantitative evaluation of beam bridge section cracking are achieved; the method not only improves the accuracy and efficiency of damage identification, but also provides a reliable technical means for rapid detection and state evaluation of the existing beam bridge.

This utility model provides a main beam cross-section structure for a long-span, low-tower cable-stayed bridge, relating to the technical field of main beam cross-section structures. It includes a pier body and a top panel. The pier body has an internally reinforced rib structure, and a cap beam is provided on the upper part of the pier body. A first recess is opened in the middle of the cap beam, and a central insert is installed within the first recess. Positioning holes are provided on both the left and right sides of the cap beam, and positioning columns are embedded within these holes. The upper parts of the central insert and positioning columns are fitted into the lower part of the top panel, and two sets of supports are installed between the bottom surface of the top panel and the cap beam. This utility model not only ensures precise alignment and stability of the bridge's central portion, contributing to the stability of the main beam core, but also effectively resists tensile stresses, significantly improving the bridge structure's bending resistance, making it more stable and robust, preventing the generation and development of cracks, and extending the bridge's service life.

The present invention relates to the technical field of wheel-rail double-disc rolling simulation, and specifically discloses a double-disc rolling rail specimen design method that takes into account the effect of bending stress. The present invention realizes the effect of bending stress on the extension of rail rolling contact fatigue cracks on the double-disc rolling specimen, and combines finite element analysis methods and rolling contact fatigue and wear testing machines, SEM scanning electron microscopes and other equipment to analyze the cross-sectional crack morphology and maximum bending stress value σ of the double-disc rolling rail specimen. simRmax The cross-sectional shapes of the specimens are optimized according to the analysis results until the crack morphology of the specimen cross section is close to the crack morphology of the rail cross section after field service, and the total height H of the simulated beam cross section of the specimen is continuously modified until it meets σ simRmax =σ Rmax , and then combined with the rolling contact fatigue and wear testing machine to verify the rationality of the test structure again, to ensure that the rolling contact fatigue crack damage of the full-size rail under bending stress can be reproduced in the laboratory.

The utility model discloses a multi-module collaborative laser green repair metal remanufacturing device, and belongs to the technical field of laser processing. The multi-module collaborative laser green repair metal remanufacturing device comprises a supporting frame and a gas cylinder, a rotating disc is arranged on the supporting frame, various scraper assemblies are arranged on the rotating disc, a connecting frame is arranged at the top of the supporting frame, a shell is arranged at the other end of the connecting frame, and a powder conveying assembly is arranged in the shell. A powder storage tank communicated with the gas cylinder is arranged on the top of the shell, and a laser is arranged on the back of the supporting frame. According to the multi-module collaborative laser green repair metal remanufacturing device, after powder in the powder storage tank is extruded out and conveyed to the base plate through the powder conveying assembly, the various scraper assemblies are rotated according to the green repair layer morphology requirement, the cross section morphology of a powder beam of the scraper assemblies meets the green repair requirement, and finally the laser carries out laser green repair forming. The problems that due to the irregular powder distribution form, the surface of the green repairing layer is hollow, and the precision of a formed part is poor are solved.

The invention discloses an arch dam shear-resistant safety evaluation method, which specifically comprises the following steps of: establishing an arch dam numerical model through ADAO software, calculating shear-resistant safety coefficients of each arch section and beam section of a dam body, and identifying and positioning the most unfavorable arch section and the most unfavorable beam section according to the shear-resistant safety coefficients; constructing an agent model by combining Latin hypercube sampling and a BP neural network method; calculating an arch dam shear resistance reliable index based on a Monte Carlo simulation method; according to the arch dam anti-shear safety evaluation method, the arch dam anti-shear safety problem is focused, the anti-shear safety level of the weakest area of the arch dam is quantitatively evaluated, the gap of arch dam anti-shear safety evaluation is filled up, anti-shear safety is accurately quantified, a scientific and efficient path is provided for arch dam engineering anti-shear safety evaluation, and through A arch dam example verification, the arch dam anti-shear safety evaluation method has the advantages that the arch dam anti-shear safety evaluation method is high in practicability. And the arch dam operation safety is effectively guaranteed.

The present invention discloses a design method for a high-speed maglev spatial curve beam, which includes: obtaining and determining the layout parameters of the spatial curve beam, including the beam span length, the minimum plane radius, the minimum vertical radius, and the minimum combined radius; obtaining the sectional boundary parameters of the spatial curve beam, including the boundary parameters of the beam top plate and the web; and designing the structural surface of the spatial curve beam according to the layout parameters and sectional boundary parameters of the spatial curve beam. With the layout parameters and sectional boundary parameters of the spatial curve beam as inputs, the structural surface of the spatial curve beam is designed through the above parameters, and different structural surface designs are adopted for different radius positions of the line. The beam is separated from the long-span bridge, and by reducing the length of the beam and lowering the beam height, it is convenient to adjust the beam line type; and in the large curve section, the design method of using folds instead of curves is adopted, reducing the required mold specifications and facilitating the millimeter-level adjustment requirements during the installation of the track beam, so that the spatial curve beam can meet the accuracy requirements of high-speed maglev track operation.

The invention relates to the technical field of accelerator beam calibration, in particular to an electron accelerator beam calibration water absorption target device which comprises a suspension support, an installation platform is arranged at one end of the suspension support, and a calibration target is detachably installed on the installation platform; the calibration target comprises a detachable water tank mounted on the platform, the water tank is filled with a liquid medium for absorbing beam energy, and no bubble exists in the water tank; the water tank is horizontally arranged along the beam propagation direction of the electron accelerator, and the cross section is perpendicular to the beam incidence direction; according to the invention, the regular hexagonal honeycomb array measurement subareas are formed in the water tank through the thermal insulation partition plates, the regular hexagonal honeycomb array measurement subareas are further refined into the independent spacer areas in cooperation with the net-shaped partitions, and the regular hexagonal densely-laid structure has no measurement blind area and can completely cover the cross section of a beam; meanwhile, the side lengths and the volumes of all the partitions are consistent, and the standard unification of all the measuring units is ensured.

The application relates to the technical field of building construction, in particular to a structure reserved hole cantilever plate reinforcing construction method.The method comprises the following steps of S1, obtaining structure plate horizontal reserved hole related parameters; S2, establishing a BIM model according to the obtained structure plate horizontal reserved hole related parameters; S3, determining the reserved hole position and size according to the established BIM model; and S4, determining the added structure beam section model by using stress software according to the reserved hole position and size; the PKPM software is used for component stress calculation and analysis, the support steel beam structure deformation and safety analysis are designed, and the scheme safety and accuracy are guaranteed. The added structure beam structure system greatly reduces the construction cost caused by full-support scaffold measures.

The invention discloses a beam wall column section size generation method, system and device and a medium, and the method comprises the steps: constructing a design specification knowledge graph of a beam wall column section according to various building structure design specification files; obtaining an initial size of a target beam section and an initial size of a target wall column section; generating a second size of the target wall column section according to the design specification knowledge graph of the wall column section and the initial size of the target wall column section; generating a second size of the beam section according to the design specification knowledge graph of the beam section and the initial size of the target beam section; and according to the second size of the target wall column section and the second size of the target beam section, generating the size of the target beam wall column section. Through the automatic and intelligent section design technology, the problems that a traditional method is low in efficiency and unstable in economical efficiency are solved, on the premise that the structure safety is guaranteed, the design efficiency, economical efficiency and compliance are comprehensively improved, and the method has remarkable engineering application value and market popularization prospects.

A wave-shaped web I-beam front axle, including I-beam and the front axle body arranged at both ends of the I-beam, the front axle body extends obliquely outward and is provided with a front axle pipe, the I-beam includes horizontal upper web and lower web, the upper web and the lower web are fixedly connected by vertical middle web, so that the upper web, the middle web and the lower web form the I-beam with I-shaped cross section, and the horizontal section of the middle web is wave-shaped.The utility model discloses more reasonable structure design, through reducing the thickness of the upper web of the I-beam, the width of the upper web and the lower web of the I-beam and the thickness of the middle web, the relative circular pipe beam cross section area reduces 29.5%, realizes that the I-beam front axle reduces 12.5% in weight, in addition, the cross section height of the I-beam is higher than that of the circular pipe beam, improves the bending fatigue strength of the front axle, the middle web is designed into wave-shaped, improves the bending deformation stiffness of the front axle, namely, in the whole weight reduction, the bending resistance of the front axle can be improved.

The present invention discloses a bracket design method for supporting and isolating a tunnel axial flow fan, comprising: (a) using a double I-beam cantilever beam as a support structure installed on the tunnel side wall to support the tunnel axial flow fan; (b) obtaining parameters related to the axial flow fan, including mass, speed, installation position, and vibration isolation efficiency; (c) ignoring the deadweight of the cantilever beam, and calculating the moment of inertia I of the cross section of the cantilever beam according to the parameters in step (2) z (d) Based on the vibration isolation efficiency and the moment of inertia of the cantilever beam cross section I z , using the I-beam model table to determine the I-beam model; and (e) analyzing the maximum normal stress and maximum shear stress of the double I-beam cantilever beam, and comparing the maximum normal stress with the tensile proportional limit and yield limit of the cantilever beam material to ensure that the maximum normal stress does not exceed the tensile proportional limit and yield limit of the cantilever beam material.

The utility model relates to a self-positioning adapting structure of a frame tubular beam and a box body frame, the self-positioning adapting structure of the frame tubular beam comprises a tubular beam cross beam and a first vertical beam, the tubular beam cross beam is provided with a first opening, and the section shape of the first vertical beam is matched with that of the first opening; one end of the first vertical beam extends into the first opening and is mechanically connected with the tubular beam cross beam in a welding manner; according to the utility model, adaptive structural design improvement is carried out on the tubular beam cross beam, so that the welding connection strength of the tubular beam cross beam and the vertical beam is improved, the positioning is rapid, convenient and accurate, the use of positioning tools is reduced, the cost is saved, the reliability and safety are good, the manufacturing is convenient, and the specific requirements of users on the production and assembly of new energy automobiles at present are met; the application is wide.

The application discloses a high-efficiency lacing construction of a laminated beam section and a construction method thereof. For the laminated beam with a common section width of 400-800 mm in engineering, different numbers of composite stirrups are combined, and the hook forms and positions of the stirrups are changed to facilitate efficient lacing. Compared with the prior art, the application solves the problem of collision between the 135-degree hook of the traditional stirrup and the longitudinal reinforcement by optimizing the stirrup construction form of the laminated beam section, increases the operation space for lacing the top reinforcement of the laminated beam, reduces the construction difficulty, and effectively improves the on-site construction efficiency of the laminated beam. The lacing construction of the laminated beam section solves the construction pain point of the difficulty in lacing the laminated beam of the existing fabricated frame structure, can avoid the quality problems caused by the difficulty in lacing the stirrup on site, guarantees the safety of the structure, and meanwhile, the optimized composite stirrup construction of the laminated beam is simple, convenient to produce, and can realize efficient processing and efficient construction.

The invention relates to the field of frames, in particular to a sectional type auxiliary frame assembly and a snow sweeper with the same, and the sectional type auxiliary frame assembly comprises a front section auxiliary frame assembly and a rear section auxiliary frame assembly; the front-section auxiliary frame assembly and the rear-section auxiliary frame assembly are respectively mounted on a chassis of the vehicle body; the auxiliary frame assembly disclosed by the invention adopts a sectional structure, is mounted on a traditional chassis, and can be suitable for a multi-platform chassis; a traditional auxiliary frame structure can be optimized according to the stress characteristics of loading and bearing of the snow sweeper, an integral auxiliary frame assembly with the same section is changed into a front section and a rear section, the section of a longitudinal beam of the front section of the auxiliary frame is reduced, and the section of a longitudinal beam of the rear section of the auxiliary frame is kept unchanged; and the weight of different parts of the upper part is borne, so that the auxiliary frame is stressed more reasonably. Meanwhile, the weight of the auxiliary frame can be reduced, and the advantage of light weight is achieved.

The invention relates to a sliding beam design method considering rail collaborative stress, and aims to solve the technical problems that in traditional sliding construction, the rail effect is ignored, the sliding shoe counter-force non-uniform control standard is lacked, and the design construction process is fuzzy. According to the method, uniform counter-force of a sliding shoe is obtained through finite element analysis, and the sliding beam section and a supporting system are optimized in combination with multi-working-condition trial calculation; a sliding shoe counter-force non-uniform control standard is formulated based on the actually measured elevation difference and the theoretical deflection; carrying out shear resistance (Vtotal = Vslippage beam + Vtrack) and bending resistance checking calculation on the combined section of the slippage beam and the track, and quantifying the stress contribution of the track; and finally, fillet weld connection and clamp plate construction are adopted. Cooperative work of the track and the sliding beam is achieved. The method is suitable for slippage projects such as long-span bridges and venue roofs, the structural safety and the construction reliability can be remarkably improved, the rework cost is reduced, and the method has high engineering application value.

The utility model relates to a shearing force connecting structure of a corrugated steel web box girder, and belongs to the technical field of bridge engineering. The angle steel is vertically embedded into the concrete slab and is welded with the corrugated steel web; the embedded part of the angle steel is respectively provided with three open holes which are respectively convenient for the perforated steel bars to pass through; the first perforated reinforcements are parallel to the length direction of the corrugated steel web, and the second perforated reinforcements are perpendicular to the first perforated reinforcements. The multiple pieces of angle steel are sequentially arranged in the length direction of the corrugated steel web and sequentially arranged at the bottom of each groove of the corrugated steel web according to the alternating rule, and the same first perforated steel bar penetrates through the multiple first open holes. The connecting structure has interface shear resistance and web root bending resistance and torsion resistance, and the rigidity and strength of the roots of the corrugated steel webs under the action of distortion and torsion are improved while shear resistance connection is achieved; and on the premise of ensuring the shear stiffness, the deformation of the steel-concrete junction of the cross section of the box girder under the action of eccentric load and the like can be better adapted.

The application is a beam formwork support merging arrangement method, electronic equipment and storage medium; the method comprises the following steps: establishing a database; counting all beam section types of design drawings, obtaining beam section data D and beam formwork support height H in all drawings; judging whether there is an out-of-range beam section, if there is, moving out the type of out-of-range section for separate calculation; selecting support type and erection mode; setting beam section merging grouping fineness; merging and grouping the beam section; judging whether the merged and grouped beam section meets the requirements; searching the database according to the grouping and merging results to form an erection scheme and calculation book. The application realizes fast merging and searching of the beam formwork support scheme, takes into account safety and economy, effectively improves the preparation efficiency, reduces human errors, and adapts to different engineering requirements.

The utility model relates to the technical field of bridge detection, in particular to a telescopic hanging basket for bridge maintenance, which comprises two guide rails arranged at the bottom of a bridge in the forward direction and a hanging basket simultaneously hung at the lower ends of the two guide rails. The hanging basket comprises a left truss and a right truss, a first connecting frame is arranged on the left truss, and the upper end of the first connecting frame is connected to a guide rail on the left side of the section of the bridge; a second connecting frame is arranged on the right truss, and the upper end of the second connecting frame is connected to a guide rail on the right side of the bridge section; the right truss is telescopically inserted into the left truss; a telescopic guide mechanism is arranged at the lower end of the hanging basket; the hanging basket is designed into the two parts which are matched in a penetrating and inserting mode, the left truss and the right truss which form the hanging basket are movably connected with each other in cooperation with the telescopic guide mechanism, separation and approaching can be conducted according to the transverse width change of a bridge to achieve the widening function, and the telescopic guide mechanism can guarantee the relative movement straightness of the left truss and the right truss; and the movable widening effect of the hanging basket is further improved.