| Currently,the existing BIM design software in the road BIM field,such as Openroads,Civil3 D and Revit,have all realized BIMization in the design stage,but they do not support the integration of data in the later stages of management and maintenance,etc.The informatization management of the whole life cycle of the project is still under exploration.In order to realize the data and data support of the later operation,management and maintenance of the road,this paper conducts a comprehensive evaluation study on the asphalt road function.Firstly,the characteristics of the drainage asphalt road are studied,and the main structural and functional diseases are analyzed.Secondly,according to the defects of pavement damage condition index,a pavement disease index classification system was established,the main disease rating system and the repair disease(secondary disease)rating system were proposed,and the applicability of other pavement performance indexes was discussed.Thus,a new PQI calculation model was established to comprehensively evaluate the road performance,and the function of the drainage asphalt pavement was evaluated by using the grading index of water seepage residual rate.In order to help the post-operation and maintenance personnel to fully understand the existing road condition and provide sufficient decision-making basis for the maintenance and quality control of road surface.Again,in this paper,the path of BIM explores the parametric modeling method,according to the latest issue of the 2019 "model of highway engineering information classification and coding rules in Jiangsu province" and "municipal road and bridge engineering BIM technology"(public)defines the road engineering structure,engineering materials,engineering project phase and basic properties of coding,and based on this established the basic structure of the family system framework,to create the way libraries and family structure material.In addition,based on the characteristics of road function evaluation system,this paper studies the application of road relation attribute set and custom attribute set.Based on the rule analysis of road IFC,the attribute sets,attribute types and associated entities of disease rating and function rating are defined.Finally,this paper adopts the method of inheritance of external data and transformation of model data,integrates the custom attributes into the pavement components,realizes the integration and visualization of engineering structure,engineering materials,engineering stages and basic engineering attributes in Revit software,and establishes the comprehensive evaluation model of road function based on Revit.This paper studies the main evaluation indexes of road function and puts forward a new comprehensive evaluation method of road function.Through the establishment of road attribute set and road family templates based on IFC standard,the road modeling field under Revit platform is explored and expanded,and a complete road function evaluation and visualization process is established,which provides exploration experience for the development of BIM technology in road evaluation and decisionmaking field. |
