95 results about "Beam cross section" patented technology

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 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 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.

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 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 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.

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 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 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 invention discloses a method for establishing a temperature gradient of a double-layer steel truss girder under solar radiation, which comprises the following steps of: S1, calculating a solar elevation angle alpha s (t) and a solar azimuth angle gamma (t) according to the latitude and longitude of a bridge site, an hour angle and a solar declination; projecting the solar ray vector to the cross section of the main beam according to the included angle xi between the axis of the main beam and the east-west direction to obtain a solar incident angle theta (t) in the cross section; s2, respectively deducing solar radiation areas of an upper-layer bridge floor, a lower-layer bridge floor and web members on the basis of a solar incident angle theta (t) and geometric parameters of the bridge; s3, establishing a temperature field formula related to the solar radiation duration, the air temperature, the material attribute, the surface direction and the coating; s4, temperature gradients of the upper-layer bridge floor, the lower-layer bridge floor and the web members are calculated according to the solar radiation area and a temperature field formula, and the most unfavorable temperature gradient and the corresponding moment are determined; according to the scheme, a reliable temperature working condition basis is provided for temperature effect analysis, stress evaluation and structural design of the double-layer steel truss girder.

The application discloses a steel frame structure anti-seismic optimization method based on a particle swarm algorithm, and relates to the technical field of building anti-seismic, and comprises the following steps: acquiring geometric constraint data for a target beam; generating corresponding mechanical compensation parameters based on the geometric constraint data; managing state identifiers of a plurality of particle data in a particle swarm optimization engine through a coordination controller based on the mechanical compensation parameters; adjusting at least one of a constraint condition pool and a particle generation strategy of the particle swarm optimization engine based on a check result of the state identifiers, and outputting a steel frame structure anti-seismic optimization design scheme satisfying a strong-column weak-beam anti-seismic mechanism and geometric constraints; and the application ensures that only a scheme satisfying the mechanical compensation parameters can be adopted, thereby avoiding failure of the strong-column weak-beam mechanism caused by reduction of the section height of the target beam, and improving the safety of the target design scheme.

The utility model relates to a printer wallboard straining beam section processor, and belongs to the technical field of printer wallboard straining beams, the printer wallboard straining beam section processor comprises a base, a support frame arranged at the upper end of the base and a U-shaped seat arranged in the middle of the upper end of the base, hydraulic push rods I are arranged on the front side and the rear side of the U-shaped seat, and clamping blocks located in the U-shaped seat are arranged at the push rod positions of the hydraulic push rods I; the upper end of the base is provided with guide rail grooves located in the left side and the right side of the U-shaped base respectively, lateral clamping plates slide in the guide rail grooves, and the base is provided with a driving assembly for driving the lateral clamping plates to move oppositely and reversely. Compared with the prior art, the printing machine wallboard straining beam section processor has the advantages that under the protection effect, the driving motor drives the grinding disc to rotate, the sections of the two ends of a straining beam are automatically and synchronously processed, meanwhile, chippings are prevented from splashing, a blocking cylinder blocks the chippings and prevents the chippings from being discharged, meanwhile, the dust collection assembly extracts the generated chippings, and the working efficiency is improved. The treatment efficiency, the safety and the environmental protection effect are improved.

The invention discloses a large-span glass curtain wall system which comprises a main body structure, glass panels, transverse steel beams, inhaul cables, bearing steel plates and inhaul cable fasteners. Wherein the transverse steel beams are arranged in parallel at horizontal dividing joints of the glass curtain wall between top and bottom main body structure beams, two ends of the transverse steel beams are fixedly connected with main body structure columns respectively, and the transverse steel beams are used for transmitting horizontal load of the glass curtain wall to the main body structure columns; the inhaul cable is arranged at the vertical dividing joint of the glass curtain wall in a hidden mode, one end of the inhaul cable is fixedly connected with the top main body structural beam, and the other end of the inhaul cable sequentially penetrates through the inhaul cable holes in the second bearing steel plate to be fixedly connected with the bottommost transverse steel beam and is used for bearing the gravity load of the glass curtain wall. The transverse steel beams and the inhaul cable system are combined, and the problem that the section of the main body beam is designed to be too large due to too large prestress can be solved.

The utility model discloses a mobile crossbeam for universal testing machine belongs to universal testing machine technical field, mobile crossbeam section is square, hollow inside, and the middle part of mobile crossbeam is equipped with the through -hole for the installation of clamp, and the inside of mobile crossbeam is equipped with two strength support device symmetrical in the through -hole left and right sides, and strength support device includes the resin concrete column of supporting the inside surface of mobile crossbeam up and down and is located in the resin concrete column several longitudinal distribution's prestressed steel, and the both ends of prestressed steel are curved to the outside of mobile crossbeam, and resin concrete column is with mobile crossbeam interference fit. In addition, the utility model still provides the manufacturing and installation method of above -mentioned strength support device. The utility model improves mobile crossbeam rigidity through the structure improvement, avoids the micro deformation of mobile crossbeam in the test process because of the clamp pressure through the inside strength support device, improves mobile crossbeam service life and test accuracy.

The invention discloses a construction method for reducing the local section of an existing structural beam. The construction method comprises the following steps that S1, a cuboid beam section reducing area is divided at the bottom of the existing structural beam; a cuboid concrete removing area is divided at the bottom of the existing structural beam; s2, concrete in the concrete removing area is removed, and existing steel bars in the structural beam are exposed; s3, existing bottom ribs and existing stirrups in the area with the reduced beam section are cut off; s4, newly-added bottom bars are installed at the bottom of the post-pouring concrete area; and S5, concrete construction is conducted in the post-pouring concrete area, and construction for reducing the local section of the structural beam is completed after concrete is formed. According to the method, reliable connection is provided between the post-pouring concrete area and the existing structure by arranging the newly-added bottom bars in the post-pouring concrete area, so that the stress performance of the beam meets the requirements after local dismantling, the situation that the whole beam is constructed again after being completely dismantled is avoided, and the construction efficiency is improved.

The utility model discloses an anti-toppling type modularized storage goods shelf which comprises stand columns, two-tooth hanging lugs and cross beams, clamping grooves are formed in the surfaces of the stand columns, mounting holes are formed in the surfaces of the two-tooth hanging lugs, clamping blocks are further fixedly connected to the side walls of the two-tooth hanging lugs, and the two-tooth hanging lugs are clamped in the clamping grooves of the stand columns through the clamping blocks. The two-tooth hanging lug is detachably connected with a cross beam through a mounting hole and an external bolt, the cross beam has an L-shaped section, a laminate is laid on the surface of the cross beam, the surface of the cross beam is further slidably connected with a plurality of movable parts, and the surface of the laminate is slidably connected with a plurality of partition plates through the movable parts; the two-tooth hanging lug and the stand column are connected through matching of the clamping groove and the clamping block, then the cross beam and the two-tooth hanging lug are connected through the bolt, the goods shelf is easy and convenient to assemble through the modularized design, installation can be rapidly completed, manpower and time cost are saved, the storage area can be flexibly adjusted according to different sizes and storage requirements of goods, and the goods shelf is convenient to use. The utilization rate of storage space is improved.

A method is described for determining the aberrations of a charged particle beam (11) focused onto a sample (10) by a focusing lens (120) having a given numerical aperture (NA) in a charged particle beam system. The method includes: (a.) determining the aberrations of a set of beam aberration coefficients (C) based at least on the given numerical aperture (NA). 1...n (a) Simulate one or more beam cross sections under one or more first defocus settings for each of two or more distinct values ​​of the first beam aberration coefficient (C1) in the sample to provide a plurality of first simulated beam cross sections; (b) Extract two or more values ​​of the first aberration characteristic (~C1) associated with the first beam aberration coefficient (C1) from the plurality of first simulated beam cross sections; (c) Determine a first correlation between the first beam aberration coefficient (C1) and the first aberration characteristic (~C1); (d) Capture one or more images of the sample under one or more first defocus settings or under one or more second defocus settings to provide one or more captured images, and retrieve one or more retrieved beam cross sections from the one or more captured images; (e) Extract the retrieved value of the first aberration characteristic from the one or more retrieved beam cross sections; and (f) Determine the actual value of the first beam aberration coefficient based on the first correlation and based on the retrieved value of the first aberration characteristic.

The invention discloses a steel-concrete composite beam cable-stayed bridge girder deflection calculation method considering interface slippage deformation. Comprising the following steps: calculating the slippage of the main beam section of the steel-concrete composite beam cable-stayed bridge, analyzing the deflection of the main beam of the steel-concrete composite beam cable-stayed bridge considering the interface slippage effect, and performing equivalent analysis on the mechanical behavior of the main beam in the steel-concrete composite beam cable-stayed bridge through a multi-span continuous system. According to the method, the deflection of the main beam of the steel-concrete composite beam cable-stayed bridge in the construction and operation stages can be accurately predicted, important technical support is provided for design, construction monitoring and operation maintenance of a bridge, and the construction quality and safety of bridge engineering can be improved.

The application relates to a commercial vehicle mixed material instrument beam and a manufacturing method thereof, wherein an aluminum alloy pipe beam cross section is polygonal; a steering column support and a main driver side front wall and a steering column integrated support support are formed by magnesium-aluminum alloy pressure casting, and are connected with the aluminum alloy pipe beam through FDS screws; a plastic support assembly is segmented injection molded, each segment comprises a support body and a plastic connecting ring connected with each other; an inner wall of the plastic connecting ring is provided with a cladding connecting surface for the outer surface of the aluminum alloy pipe beam; and the plastic connecting ring and the aluminum alloy pipe beam are pull-riveted. The above structure realizes that the stamping and welding process can be replaced by the FDS and pull-riveting processes, the production cost and steps are reduced; the plastic connecting ring increases the connecting area, directly contacts the aluminum alloy pipe beam through an opening during connection, and is riveted; the connecting strength is strengthened while installation and positioning are facilitated; the injection molding is performed in a segmented mode, the mold scale is reduced, and the injection molding process and cost are simplified.

The utility model relates to the technical field of frame suspension support, disclose a kind of frame suspension support structure, including upper sheet member, lower sheet member and crossbeam, upper and lower sheet member are sheet metal parts, upper and lower combination and edge are fixed with bolt into hollow cavity, a piece of upper sheet member and a piece of lower sheet member constitute a group of sheet metal fixing parts, crossbeam both ends each bolt fixed a group and symmetrically set;Upper sheet member is folded into three faces, including a top surface and two side surfaces;Lower sheet member is bent into the bottom surface cooperation with the three faces of upper sheet member, and the hollow cavity is thus formed;Crossbeam section is rectangular, at the bolt fixing place of sheet metal fixing part and crossbeam, upper and lower sheet member respectively with the corresponding surface of crossbeam is attached;To solve the technical problem that the welding seam connection of suspension support made of sheet metal part is prone to cracking.

The application discloses a kind of FRP tendon concrete beam shear capacity prediction method based on RNN-MCFT, including obtaining the experimental sample data of FRP tendon concrete beam shear capacity;Experimental data includes characteristic variable and corresponding target variable;Characteristic variable at least includes the beam section width of FRP tendon concrete beam, beam section effective height, shear span ratio, concrete compressive strength, maximum coarse aggregate particle size, longitudinal reinforcement ratio, longitudinal reinforcement fracture strength, longitudinal reinforcement elastic modulus and stirrup reinforcement ratio, stirrup fracture strength and stirrup elastic modulus;Target variable is shear capacity;Based on double-layer recurrent neural network RNN combined with correction pressure field theory MCFT, the optimal FRP tendon concrete beam shear capacity prediction model is constructed;According to the optimal FRP tendon concrete beam shear capacity prediction model, realize the FRP tendon concrete beam shear capacity prediction based on RNN-MCFT.The application solves the problem that existing method cannot effectively realize the FRP tendon concrete beam shear capacity prediction.

The invention relates to the technical field of automobile design, in particular to a multi-element combination-based frame lightweight optimization method, and solves the technical problems that in existing truss-type frame lightweight design, model establishment is complex, and a traditional Harris eagle algorithm is slow in convergence speed and low in precision. Analyzing strength and rigidity performance under bending and torsion working conditions and acquiring inherent frequency; then, response surface optimization is carried out by taking the I-beam as an object, and three groups of candidate solutions are obtained by taking the maximum deformation and the maximum stress as constraints and the mass as a target; optimizing a traditional Harlisia eagle algorithm to obtain an IHHO algorithm, optimizing the cross section size of the I-shaped beam by using the IHHO algorithm to obtain three groups of optimal solutions, and determining final parameters of the beam cross section after comparison; and optimizing other beams of the frame according to the steps, and finally verifying the strength, rigidity and fatigue life of the optimized frame. The method has a good application prospect in the field of design of truss type frames with lightweight requirements.

The invention relates to a method for laser processing a workpiece (104) having a material (102) which is transparent for the laser processing, in which method an input laser beam (108) is divided into a plurality of sub-beams (116) by means of a beam splitting element (106), wherein the division of the input laser beam (108) by means of the beam splitting element (106) is effected by imposing a phase on a beam cross section (112) of the input laser beam (108), the sub-beams (116) which are coupled out of the beam splitting element (106) are focused by means of focusing optics (118), a plurality of focal elements (120) is configured by focusing the sub-beams (116), and in the method at least one subset of the configured focal elements (120) is loaded onto the material (102) of the workpiece (104) for the laser processing. The phase imposition is effected by means of the beam splitting element (106) in such a way that at least two of the configured focal elements (120) have different intensities (I).

The application discloses a reinforcing frame beam formwork structure for increasing the cross section of a beam, and belongs to the technical field of frame beam formworks. The reinforcing frame beam formwork structure comprises a steel frame assembly and a formwork assembly. The steel frame assembly is fixedly connected to the lower side of original beam steel bars and arranged in a rectangular frame, and is used for providing installation support for the formwork assembly. The steel frame assembly comprises a U-shaped hoop, an end reinforcing S-shaped bar, a bottom bar, a tension bar and a top flat steel hoop. The formwork assembly is used for pouring concrete for increasing the cross section of a beam, and comprises side plates, a bottom plate, vertical limiting plates, horizontal limiting plates and feeding members for feeding concrete. The formwork assembly wraps the steel frame assembly, the upper edges of the side plates are attached to the side surfaces of the original beam, and the formwork assembly is fixedly supported by external steel frames. The application has the advantages of reasonable structure, firm connection, accurate formwork positioning and convenient construction.

This invention relates to the field of formwork support in building construction, and discloses an ultra-high formwork support system based on disc-lock steel pipe scaffolds and its erection method. The method divides the support area into a high-load bearing zone, a transitional force transmission zone, a normal support zone, and an independent support zone for inclined beams, based on the formwork height, beam cross-section, slab thickness, span, and location of the inclined beams. First, a benchmark disc-lock unit is erected in the normal support zone, and then partitioned disc-lock frames are erected extending to the transitional force transmission zone and the high-load bearing zone. A main support beam and a transverse distribution beam are set under the oversized beam to distribute the load at the beam bottom to two or more rows of load-bearing uprights. Independent support units are set at the inclined beams and connected to adjacent frames. Simultaneously, a horizontal closed reinforcement layer, peripheral tie connections, and pouring linkage monitoring points are set. This method can reduce the risks of local settlement, horizontal displacement, and loosening of connections during the construction of ultra-high and oversized beams.