The Module of Rebar Modeling for Chinese Building Standard Detailing Drawings by BIM-based Methods

Oct 23, 2026

Reinforcement engineering is critical to the performance of large reinforced concrete structures, yet it remains challenging due to its complexity and variability. This study develops a rebar modeling module based on BIM methods to address these difficulties. Using the Revit API and C#, the module builds rebar parts of structural elements from two-dimensional drawings and supports easy use for non-experts. It also generates a database for future applications.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages5

Reading Time13 min

AccessFree to download

1 Introduction

2 Method

The Module of Rebar Modeling for Chinese Building Standard Detailing Drawings by BIM-based Methods Mengxue Yanga, I-Chen Wub, Luke Allana and Chiu Jen Kua a Department of Civil & Environmental Engineering, Shantou University, Shantou, China b Department of Civil Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung, Taiwan E-mail: [15mxyang1@stu.edu.cn](15mxyang1@stu.edu.cn), [kwu@kuas.edu.tw](kwu@kuas.edu.tw), [cjku@stu.edu.cn](cjku@stu.edu.cn), [allan@stu.edu.cn](allan@stu.edu.cn) Abstract – Reinforcement engineering is one of the most important parts in projects of large reinforced concrete structures. Its quality directly affects the quality of the whole structure. As a matter of fact, many difficulties in rebar engineering remain to be solved, owing to its complexity and variability. Fortunately, the emerging BIM technology can overcome most of the difficulties. To efficiently buildup a rebar model of a structure based on the Revit@ software, this study carried out a module for rebar modeling using the Revit@ API and the C\# programming language. This module can establish the rebar part of structural elements, according to two-dimensional drawings of a structure. In addition, the module can provide an interface that is easy to be used for those who are not familiar with the standard detailing drawings. Simultaneously, this module generates a database regarding the rebar modeling, which can be further utilized in a future. Keywords – BIM; Rebar; Revit@ API; Secondary development 1 Introduction Reinforcement engineering is one of the most important parts in projects of large reinforced concrete structures. Determining the costs of it is essential for the whole project. In addition, its quality directly affects the quality of the whole structure. Owing to its complexity and variability, many difficulties in rebar engineering remain to be solved. Fortunately, the emerging BIM technology can overcome most of the difficulties. Building Information Modeling (BIM), as a new concept and technology, has been widely used by construction industries in the world since it was introduced. It can transform 2D drawings to a 3D model of a building structure. Because this 3D model allows for modifications to be made to the building’s design during the stage of audit or construction, the amount of time and money needed to incorporate the changes is also reduced. In addition, the 3D model can provide 3D reviews, which can help constructors getting through the details of 2D drawings especially for the plan of reinforcement. Many research studies have shown that the use of BIM technology for reinforcement engineering can provide satisfactory results. For example, Aram et al.(2011) mentioned that making use of BIM technology can improve productivity of the reinforcement in supply chains. Porwal and Hewage (2012) reported that if BIM technology can be used reasonably, it can reduce the loss of rebar. Pratoom and Tangwiboonpanich (2016) pointed out that the quantity of rebar resulting from the use of traditional methods is 17.76% more than that resulting from the use of BIM-based methods. Meanwhile, the application of BIM in China is just beginning, compared with the developed countries. How to take advantage of BIM technology has become the rising issues of the construction industry in China. One of the issues nowadays is the deficiency in rebar modeling when using BIM software. For example, Cho et al. (2014) mentioned that a detailed structural model built by using Tekla@ cannot interface directly with some other software tools for structural design, such as ETAB@ and ADAPT@, while Revit@ Structure can. Asa result, Revit@ Structure was used in their study to interface with ADAPT@ . Still, the details of rebars for structural design needed to be improved, when building up the frame models by means of Revit@ Structure. Shao (2017) developed a plug-in using Revit Extensions 2014@ to carry out the model

FAQs

Why is reinforcement (rebar) engineering important for large reinforced concrete structures?

Reinforcement engineering is a key part of large reinforced concrete projects because its quality directly affects the quality of the entire structure.

What BIM-based approach does the study use for rebar modeling?

The study proposes a module that uses BIM with the Revit software workflow to efficiently build rebar models from 2D drawings.

Which tools and technologies were used to implement the module?

The module is implemented using the Revit API and the C# programming language.

Oct 23, 2026

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