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Simulation, Classification and Compilation Method of 2D Vehicle Overload Spectrum

A vehicle load and load spectrum technology, which is applied in the field of vehicle load spectrum, can solve the problems of simulation, classification and compilation of vehicle overload spectrum without considering changes, unseen, and without vehicle overload, and achieves the effect of reducing the experimental workload.

Active Publication Date: 2022-05-24
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] To sum up, there are the following problems in the simulation, classification and preparation of (overrun) vehicle load spectra in my country at present: the current vehicle load spectra are all one-dimensional load spectra (load-time series), that is, only considering the vehicle load Time variation law without considering its variation with space (lane); no report on vehicle overrun load spectrum; no simulation, grading and compilation method of vehicle overrun load spectrum; no report on two-dimensional vehicle load spectrum ; There is no method for the simulation, classification and preparation of two-dimensional vehicle overload spectrum

Method used

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  • Simulation, Classification and Compilation Method of 2D Vehicle Overload Spectrum
  • Simulation, Classification and Compilation Method of 2D Vehicle Overload Spectrum
  • Simulation, Classification and Compilation Method of 2D Vehicle Overload Spectrum

Examples

Experimental program
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Embodiment 1

[0060] like figure 1 Shown is a flow chart of a method for simulating, grading and compiling a two-dimensional vehicle overrun load spectrum, the method comprising the steps of:

[0061] (1) Continuously collect traffic flow information for various typical roads for a period of time;

[0062] Typical roads include national highways, urban expressways, expressways and other roads;

[0063] The collection method includes the use of vehicle dynamic weighing system, snapshot system or manual counting methods;

[0064] Traffic flow information includes license plate number, passing time, lane, vehicle type (number of axles), axle weight, total weight, vehicle speed, etc.

[0065] The continuous collection time of traffic flow information is more than one month.

[0066] (2) Generate traffic sequence and determine the optimal sample size of traffic flow;

[0067] There are two methods for generating traffic sequence, namely:

[0068] According to the "Technical Standards for Hi...

Embodiment 2

[0108] The simulation, classification and compilation method of this two-dimensional overrun vehicle load spectrum will be further introduced below in conjunction with an example, and the method includes the steps:

[0109] (1) A city expressway (high-speed) bridge has three lanes in a single width. The vehicle dynamic weighing system and the snapshot system are comprehensively used to continuously collect the traffic flow data for one month, of which the data for 24 days are as follows: image 3 shown.

[0110] (2) According to "Road Vehicle Outline Dimensions, Axle Loads and Mass Limits" (GB1589-2004) and "China Automobile Model Manual (2012)", calculate the load effect of vehicles with each axle number respectively, and refer to the spot inspection results on site , take the vehicles with the same number of axles as a class, and take the vehicle with the largest load effect as the respective calculation (standard) model, such as Figure 4 shown. After the standard vehicle...

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Abstract

The invention discloses a method for simulating, grading and compiling a two-dimensional vehicle overload load spectrum, comprising the steps of: continuously collecting traffic flow information of various typical roads for a period of time; generating a traffic flow sequence of each lane, and determining the optimal traffic flow Sample capacity; analyze the probabilistic characteristics of the traffic sequence of each lane; simulate the traffic sequence of all lanes; generate a two-dimensional over-limit vehicle load spectrum; classify the two-dimensional over-limit vehicle load spectrum; compile the two-dimensional over-limit vehicle load spectrum . The method of the invention is used to simulate, classify and compile the vehicle overload load spectrum, which can reproduce the actual situations such as overload, overload and overload in my country's road / highway transportation, and facilitate the load effect and bearing capacity of the bridge structure. and safety assessment, health monitoring, variable amplitude and random fatigue experiments, life prediction, and hierarchical management and safety risk control of highways / road bridges.

Description

technical field [0001] The present invention relates to the technical field of vehicle load spectrum, in particular to the simulation, classification and compilation method of two-dimensional vehicle overload load spectrum. Background technique [0002] In my country's road (highway) transportation, vehicle overloading / overloading is a common phenomenon. Although not all overruns / overloads will cause the bridge structure to withstand excessive loads (“overloads”) that are greater than the design load, overruns / overloads often result in overloads that can cause premature damage to the bridge structure and various This kind of disease can even endanger the structure and traffic safety. In order to ensure the safety of existing highway bridge structures and provide a theoretical basis for the improvement of highway bridge design standards, it is necessary to accurately simulate and compile the actual vehicle load spectrum (including excess load) of typical highways in my count...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/13G06F30/20G06F111/08
CPCG06F2111/08G06F30/20G08G1/0129G08G1/015G08G1/052G08G1/0116G08G1/0137G08G1/0133G06F17/18
Inventor 黄培彦陈展标姚国文李稳李世亚郭永昌
Owner SOUTH CHINA UNIV OF TECH
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