9 results about "Segment length" patented technology

The present application discloses an automated shearing method for deformed panel assembly, comprising the following steps: screening the deformed plate for detection and calculation to obtain the head and tail resection length and segment length, transferring the deformed steel plate to a head shearing device to sequentially perform head and tail resection and segmentation processing on the deformed steel plate to obtain a panel segment to be sheared; transferring the panel segment to be sheared to a double-sided shearing device, wherein the maximum single-sided shearing width of the double-sided shearing device is a; measuring the difference ΔL between the side length L of the to-be-sheared side of the panel segment to be sheared and the target width by a detection and calculation device, and performing the following judgment: when ΔL ≤ 2a, performing a single double-sided shearing; when ΔL > 2a, calculating using the formula (ΔL-2b) / 2a=c; rounding up the obtained value c to obtain the number of first width shearing times K, calculating using the formula (ΔL-2b) / K=2d; and performing multiple double-sided shearings with a shearing amount of 2d. The present application increases the automation level of deformed panel assembly, improving the automation level and efficiency of deformed panel assembly shearing.

The invention discloses a hybrid girder bridge steel segment length optimization method and system based on construction duration coupling, and aims to solve the problems of insufficient matching between steel segment length design and construction period and poor mechanical property optimization in the prior art. The method comprises the steps of obtaining design parameters; an integral equivalent method is adopted to enable the mixed beam bridge to be equivalent to a full-concrete beam bridge, and the equivalent side-mid span ratio and the main span length are determined; establishing a linear relation between the side-mid span ratio and the steel beam proportion based on a construction period matching principle; the proportion of the steel beams and the length of the steel segments are optimized by combining mechanical equilibrium conditions; a dynamic balance method is adopted in the construction process to ensure bending moment balance. The system comprises a parameter input module, an equivalent calculation module, a construction period calculation module, an optimization module, a dynamic balance module, an output module and a verification module. Compared with the prior art, through construction period matching and mechanical optimization, the construction efficiency, the structural adaptability and the economical efficiency are improved, and the method is particularly suitable for the complex terrain condition with the ultra-small side-mid-span ratio.

The present application relates to a kind of track minimum section length calculation method, system, equipment and medium, the method first clearly the fault scene that track section length is too small appears, secondly, the actual parameter of line is input, finally, the minimum length of section under different fault scene is automatically calculated, and the maximum minimum length of section in different fault scene is selected as the final track minimum section length.Compared with prior art, the present application has the advantages of reducing the workload of designers, reducing the error probability and the like.

This application discloses a method, apparatus, storage medium, and electronic device for determining the location of rebar breakpoints. The method includes determining corresponding target segment intervals based on the distances between multiple adjacent supports with a connection relationship in an engineering drawing; determining a current breakpoint in the engineering drawing that matches at least one target rebar object based on a first reference length of a first reference rebar object; repeating the following steps until the remaining length of the target rebar object is less than the first reference length: if the current breakpoint is within the target segment interval, determining the next current breakpoint based on the first reference length, using the current breakpoint position as the starting point; if the current breakpoint is outside the target segment interval, adjusting the current breakpoint position to within the target segment interval that meets the segment length condition, and determining the next current breakpoint based on the first reference length. This application solves the technical problem of low efficiency in determining the location of rebar breakpoints in related technologies.

This invention relates to a design and construction control method for prefabricated composite supports considering eccentricity, comprising: 1. Pre-embedding strain sensors in the middle and ends of segments to ensure that the deviation between the centroid of the steel frame and the centroid of the concrete in each segment is ≤L / 5000, where L is the segment length; measuring and recording the measured value e0 of the initial centroid eccentricity before leaving the factory; 2. Determining the axial force distribution coefficient of the steel frame based on the stiffness ratio; calculating the additional bending moment Madd caused by centroid eccentricity under axial pressure P using e0; calculating the ultimate bearing capacity Pmax based on Madd and P; 3. Collecting the strain of the steel frame and concrete in layers during foundation pit excavation, and measuring the horizontal displacement Δ of the diaphragm wall at the support elevation; calculating the additional bending moment M during construction based on Δ. Δ M Δ The total bending moment M is obtained by superimposing Madd, and the crack width w is calculated from M; the actual eccentricity e during the construction stage is calculated from the measured strain. a , will e a Compare with e0 and check the cross-sectional stress; IV. Take control measures as appropriate.

This application provides a method and apparatus for designing logical segments. The method includes: acquiring the track line to be divided, and the corresponding train information and line attribute information; calculating the segment length range of the logical segment based on the train information and the line attribute information; selecting a target axle counting segment from at least one axle counting segment corresponding to the track line to be divided; and determining the target logical segment length corresponding to the track line to be divided based on the target axle counting segment and the segment length range. The method provided in this application allows for customized determination of logical segments based on the track line to be divided, resulting in a more rigorous and reasonable design of the logical segments.

The application discloses a method for estimating grouting quantity of vertical shaft ground, which comprises the following steps: grouting hole arrangement; drilling all grouting holes to the designed hole depth and collecting grouting hole cores; segmenting the designed hole depth, and setting the segment length as the same value; calculating the rock stratum of each grouting segment of all curtain holes by taking the segment height RQD as the rock quality index; segmenting grouting of the pilot hole; grouting quantity statistics of the pilot hole; solving the rock stratum influence factor of each grouting segment; and estimating the total grouting quantity. The application has the characteristics of high prediction accuracy, convenient prediction method and simple construction, and can more accurately estimate the required grouting quantity of the curtain, and has certain engineering guiding significance.

The invention discloses a numerical control processing-oriented speed optimization method, which relates to the field of numerical control processing, and comprises the following steps of: pre-reading a processing program to obtain three adjacent interpolation points, calculating the length of a small line segment, the included angle of the adjacent line segments and the height of a triangle, and eliminating intermediate points meeting conditions according to preset length, corners and height threshold values; obtaining an interpolation point sequence subjected to point elimination; the interpolation point sequence is divided into continuous tiny line segment columns according to the feeding speed, the motion type and the steering continuity of adjacent interpolation segments, the arc radius is calculated in each line segment column through the three-point circle forming relation, and space arc compression is conducted on broken lines meeting the conditions; and kink smoothing is conducted on track points which cannot be compressed and conform to the relation between the inner and outer section lengths and steering, cubic spline curve fitting is conducted on remaining broken lines to generate an optimized track to control machine tool movement, the actual cutting speed of a machine tool is made to be close to the set speed, the cutting time is shortened, and machine tool vibration is reduced.

This invention discloses a method for processing giant bridge tower piers, comprising the following steps: a pre-processing stage, establishing a three-dimensional solid BIM model, determining the dimensional parameters and assembly relationships of each component, and generating a visual processing flowchart and parameter table; a longitudinal rib segmentation stage, determining the segment length of the longitudinal ribs based on the spacing of the transverse diaphragms, ensuring that the length of a single longitudinal rib segment does not exceed four transverse diaphragm spacings and does not exceed 4m; a longitudinal rib curling stage, simulating the theoretical height loss of the longitudinal ribs after segmentation using the BIM model, and performing curling processing on longitudinal ribs with a height loss greater than 100mm after segmentation; a general assembly jig stage; an assembly stage, dividing the giant tower pier into multiple layers, assembling the giant tower pier symmetrically from the inside out; and a multi-segment pre-assembly and positioning matching stage. This invention enables high-precision, high-efficiency, and high-quality processing of tower pier components.