CN-121981879-A - Method for drawing bottom surface disease distribution diagram of main arch ring of hyperbolic arch bridge

CN121981879ACN 121981879 ACN121981879 ACN 121981879ACN-121981879-A

Abstract

The invention discloses a drawing method of a bottom surface disease distribution map of a main arch ring of a hyperbolic arch bridge, which comprises arch rib arch wave numbers, an arch rib local coordinate system, an arch wave local coordinate system, a disease position recording standard, an integral coordinate system, an arch rib disease position description standard, an arch wave disease position description standard and a disease pattern drawing standard. On one hand, the invention establishes an independent local coordinate system based on a horizontal projection plane, which is convenient for recording disease positions, for each arch rib and arch wave of the main arch ring of the hyperbolic arch bridge, on the other hand, the three-dimensional curved surface is unfolded into a two-dimensional curved surface along the forward bridge direction and the transverse bridge direction, an integral coordinate system which reflects the actual size of the main arch ring is established, and the local disease coordinates are reflected in the actual positions of the main arch ring of the hyperbolic arch bridge through coordinate transformation, so that the accurate drawing of the diseases of the complex three-dimensional curved surface of the main arch ring of the hyperbolic arch bridge is realized.

Inventors

GUO JUNKAI
HAO YANJUN
GAO HAO
WANG ZHENGUO
SUN LIZHOU
YANG YANG
SUN XIAOYING
ZHENG YEXIN
LI KAIXIN
DING YONGHUA
ZHANG XIAOWEI
GUO XUEBING
YANG RUIZHI
WANG WENHUI
GUO ZHONGJIE
ZHANG ZILIANG
LI ZHEN
LIU XUQIANG
ZHANG RUIJING
MA JIAN
WANG SHUAI
LI ANYU
CAI XIAOFEI
LI ZHUORAN
LIU ZHIHUA
ZHAO XIAOJIN

Assignees

山西省智慧交通研究院有限公司
山西省智慧交通实验室有限公司
山西交通科学研究院集团有限公司
山西省交通建设工程质量检测中心（有限公司）

Dates

Publication Date: 20260505
Application Date: 20251227

Claims (7)

1. A method for drawing a disease distribution map on the bottom surface of a main arch ring of a hyperbolic arch bridge is characterized by comprising an arch rib arch wave number (1), an arch rib local coordinate system (2), an arch wave local coordinate system (3), a disease position recording standard (4), an integral coordinate system (5), an arch rib disease position description standard (6), an arch wave disease position description standard (7) and a disease pattern drawing standard (8); The arch rib and arch wave numbers (1) are used for splitting each arch rib and arch wave, and recording the numbers and the horizontal projection plane forward bridge dimension and the horizontal projection plane transverse bridge dimension; The arch rib local coordinate system (2) and the arch wave local coordinate system (3) take a horizontal projection surface of the bottom surface of the main arch ring as a position recording surface of a component and diseases, and a local coordinate system with independent arch ribs and arch waves of the bottom surface of the main arch ring is established on the horizontal projection surface; The disease position recording standard (4) is used for describing the positions of the diseases in the arch rib local coordinate system (2) and the arch wave local coordinate system (3), and preliminarily determining the spatial positions of the diseases; And the integral coordinate system (5) is used for stretching all arch ribs and arch waves on the bottom surface of the main arch ring which is actually a three-dimensional space curved surface into independent two-dimensional planes along the forward bridge direction and the transverse bridge direction, splicing all the independent two-dimensional planes into an integral two-dimensional plane, and establishing the integral coordinate system of the bottom surface of the main arch ring on the integral two-dimensional plane. Determining the actual spatial position of the disease on the basis of the detection result; The arch rib disease position description standard (6) is used for converting disease coordinates recorded on the arch rib local coordinate system (2) by the disease position recording standard (4) into coordinates on the integral coordinate system (5); The arch wave disease position description standard (7) is used for converting disease coordinates recorded on the arch wave local coordinate system (3) by the disease position recording standard (4) into coordinates on the integral coordinate system (5); and the disease pattern drawing standard (8) is used for drawing diseases according to the converted coordinates on the whole coordinate system (5).
2. The method for drawing the bottom surface defect distribution map of the main arch ring of the hyperbolic arch bridge, which is characterized by establishing an independent arch rib local coordinate system (2) and an arch wave local coordinate system (3) for each arch rib and each arch wave of the bottom surface of the main arch ring, wherein the forward direction is taken as the X direction, the transverse direction is taken as the Y direction, the right and left sides are determined based on the increasing direction facing the X direction, the right side end point of each arch rib and each arch wave small pile number side is taken as the origin, the horizontal projection plane forward direction dimension Lxi in the arch wave number (1) of the arch rib is taken as the X direction boundary, and the horizontal projection plane transverse direction dimension Lyi is taken as the Y direction boundary.
3. The method for drawing the bottom surface fault distribution map of the main arch ring of the hyperbolic arch bridge according to claim 1 is characterized by establishing a fault position record standard (4), defining two end points of a line fault, middle points and all folding points of the surface fault along the circumference as nodes, projecting all the nodes on a horizontal plane, defining the distance from a small pile number side boundary of each node projection point to a horizontal projection plane as an abscissa x and defining the distance from each node projection point to a right side boundary of the horizontal projection plane as an ordinate y in the ranges of an arch rib local coordinate system (2) and an arch wave local coordinate system (3), and forming coordinates (x, y) of the node. For the line diseases, the node with the smallest abscissa X is defined as a starting point X1, the nodes with the smallest abscissa are sequentially arranged along the line diseases towards the large pile number side or the left side and then are Xi, for the surface diseases, the node with the smallest abscissa is defined as a starting point X1, the nodes with the smallest abscissa are sequentially arranged along the direction Zhou Changshun and then are Xi, if a plurality of nodes with the smallest abscissa exist, the node with the smallest ordinate is defined as a starting point X1, each node coordinate is (X i ,y i ), and particularly, when the surface diseases are rectangles parallel to the bridge direction, the coordinates of any two opposite vertex nodes can be recorded.
4. A method for drawing a main arch ring bottom surface fault distribution map of a hyperbolic arch bridge according to claim 1 is characterized by establishing the integral coordinate system (5) of the main arch ring bottom surface, stretching the main arch ring bottom surface which is actually a three-dimensional space curved surface into a two-dimensional plane along a forward bridge direction and a transverse bridge direction, wherein the forward bridge direction is taken as an X direction, the transverse bridge direction is taken as a Y direction, the right and left sides are determined based on the increasing direction facing X, the right end point of the side edge of a small pile number is taken as an origin, the arc length integral of each arch rib and each arch wave forward bridge direction arch axis equation between 0 and Lxi 'is calculated, the arc length integral of each arch wave transverse bridge direction arch axis equation between 0 and Lyi' is calculated for each component in the X direction boundary, and the transverse bridge direction dimension Lyi of each arch rib horizontal projection plane Lyi 'is calculated as Lyi' and is calculated as a Y direction boundary.
5. The method for drawing the bottom surface fault distribution map of the main arch ring of the hyperbolic arch bridge is characterized by establishing a fault location description standard (6), wherein the fault is cooperatively stretched into two-dimensional fault along with the establishment of an integral coordinate system (5), the arc length integral of an arch axis equation between 0 and x i is calculated to be x i 'aiming at the coordinate (x i ,y i ) recorded by a certain node under the integral coordinate system (2), the sum of yi and the right-side all arch bridge transverse dimension Lyi' of a component where the node is positioned and the transverse dimension Lyi of a horizontal projection plane of all arch ribs are calculated to be yi ', and the coordinate (x i ,y i ) recorded by the node under the integral coordinate system (5) is converted into the coordinate (x i `,y i ') under the integral coordinate system (5) of all the nodes on all arch ribs.
6. A method for drawing a bottom surface fault distribution map of a main arch ring of a hyperbolic arch bridge according to claim 1 is characterized by establishing a fault location description standard (7), wherein the fault is cooperatively stretched into two-dimensional faults along with the establishment of an integral coordinate system (5), aiming at a coordinate (x i ,y i ) recorded by a certain node under the arch local coordinate system (3), the integral of the arc length of an arch forward arch axis equation between 0 and x i is calculated as x i ', the integral of the arc length of an arch transverse bridge to an arch axis equation between 0 and y i is calculated as yi', yi 'is added with the lateral dimension Lyi of all arch transverse bridges and the lateral dimension Lyi of all arch rib horizontal projection surfaces on the right side of the member where the node is positioned, and the coordinate (x i ,y i ) recorded by the node under the arch local coordinate system (3) is converted into the integral coordinate system (x i `,y i ') under the integral coordinate system (5), and all the coordinates under the arch local coordinate system (5) are converted.
7. The method for drawing the disease distribution map on the bottom surface of the main arch ring of the hyperbolic arch bridge according to claim 1 is characterized by establishing a disease pattern drawing standard (8), wherein an integral two-dimensional plane formed by the integral coordinate system (5) is used as a bottom map for drawing the disease distribution map, lxi 'is the length of each component, along the bridge direction, ly' is wide, and the transverse bridge direction.

Description

Method for drawing bottom surface disease distribution diagram of main arch ring of hyperbolic arch bridge Technical Field The invention belongs to the technical field of bridge engineering, and particularly relates to a drawing method of a bottom surface disease distribution diagram of a main arch ring of a hyperbolic arch bridge. Background In bridge inspection business, it is often necessary to draw the distribution of the defects on the surface of the girder of the bridge and calculate the size and engineering quantity of the defects. When drawing the disease distribution diagram, the position of the disease on the surface of the bridge girder needs to be known. In bridge inspection reports, information of the spatial positions of diseases is often required to be displayed in the form of two-dimensional pictures. The bridge girder is a three-dimensional space structure, the common practice is to split the outer surface of the bridge girder into independent two-dimensional surfaces, and the positions of diseases are recorded on each surface independently, so that the distribution condition of the diseases on the surface of the bridge girder is obtained. The traditional method can only be applied to main beams with planar and regular surfaces, and has the defects that (1) a coordinate system cannot be directly established on a curved surface, the size of a main arch ring cannot be described, most of diseases on the main arch ring are three-dimensional, namely, a transverse bridge extends to three directions, namely, a forward bridge extends to the vertical direction, the specific position and the size of the diseases cannot be described by the traditional method, and (3) the three-dimensional space position cannot be converted into a two-dimensional plane position and is unfolded into a two-dimensional distribution diagram and the like when facing three-dimensional curved surfaces such as an arch bridge and the like, in particular, the complex space curved surfaces such as a hyperbolic arch bridge. Disclosure of Invention In order to overcome the defects of the prior art, the invention provides a drawing method of a bottom surface disease distribution diagram of a main arch ring of a hyperbolic arch bridge, which is characterized in that on one hand, a set of independent local coordinate system based on a horizontal projection surface and convenient for recording the disease position is built for each arch rib and arch wave of the main arch ring of the hyperbolic arch bridge, on the other hand, a three-dimensional curved surface is unfolded into a two-dimensional curved surface along the forward bridge direction and the transverse bridge direction, an integral coordinate system reflecting the actual size of the main arch ring is built, and the local disease coordinate is reflected in the actual position of the main arch ring of the hyperbolic arch bridge through coordinate transformation, so that the accurate drawing of the disease of the complex three-dimensional curved surface of the main arch ring of the hyperbolic arch bridge is realized. The method for drawing the bottom surface disease distribution map of the main arch ring of the hyperbolic arch bridge comprises arch rib arch wave numbers, an arch rib local coordinate system, an arch wave local coordinate system, disease position recording standards, an integral coordinate system, arch rib disease position description standards, arch wave disease position description standards and disease pattern drawing standards. And the arch rib and arch wave numbers are split, and the numbers and the horizontal projection plane forward bridge direction size and the horizontal projection plane transverse bridge direction size are recorded. And the arch rib local coordinate system and the arch wave local coordinate system take a horizontal projection surface of the bottom surface of the main arch ring as a member and a position recording surface of diseases, and establish independent local coordinate systems of each arch rib and each arch wave of the bottom surface of the main arch ring on the horizontal projection surface. And the disease position recording standard is used for describing the positions of the diseases in the arch rib local coordinate system and the arch wave local coordinate system, and preliminarily determining the spatial positions of the diseases. And the integral coordinate system is used for stretching each arch rib and each arch wave of the bottom surface of the main arch ring which is actually a three-dimensional space curved surface into independent two-dimensional planes along the forward bridge direction and the transverse bridge direction, splicing the independent two-dimensional planes into an integral two-dimensional plane, and establishing the integral coordinate system of the bottom surface of the main arch ring on the integral two-dimensional plane. On the basis of which the actual spatial position of the disease is determined. T