摘 要

随着中国迈入新的发展时期以及信息化、智能化技术的蓬勃发展，原本粗放型的工程施工建造已不再顺应当前社会发展潮流，在这个背景下，应用BIM技术的精细化施工建造逐渐成为工程施工管理的主流。

传统的桥梁设计施工是基于抽象的二维图纸和枯燥的文字方案呈现，立体空间的想象则需要靠设计者和建造者的知识及经验积累，而实际执行时会经常出现认知不一的情况。施工完成后若不符合使用者需求，还需返工，容易造成材料浪费、质量浪费、劳动浪费和设备的浪费。同时，由于桥梁结构体量大、构件结构复杂，使得传统的施工方法和施工管理模式不足以应对。基于BIM技术的3D可视化、构件参数化使得技术性强的二维图纸的交流转变为非专业人员也能理解的三维可视化交流，便于沟通、协作。同时基于BIM技术的4D施工进度模拟和虚拟施工可以实际施工之前进行模拟方案施工，模拟中发现的问题可以在实际施工前得到妥善解决，减少不必要的损失，同时可以使建设方以及项目各利益相关方有共同的认识。因此，BIM技术对于复杂的桥梁结构可以实现精确施工控制和施工管理。

本文以秦淮新河三跨连续刚构桥为例，将BIM技术应用于其V形墩及0#块的施工当中，进行了较为系统的BIM桥梁施工方向上的探索。其施工应用流程主要分为以下三个部分：

（1）V形墩及0#块的逆向建模。在既有的设计图纸的基础上，对秦淮新河V形墩及0#块建模，对所处地形进行场地建模和局部钢筋建模，为施工BIM应用提供三维载体；

（2）V形墩及0#块的施工模拟。利用3D模型解析V形墩和0#块变截面箱梁的施工过程；

（3）V形墩及0#块施工进度模拟。施工计划的可视化，便于各参与方协作和施工单位组织管理。

关键词：BIM技术；桥梁专项施工；3D可视化；虚拟建造

BIM-based Three-span Continuous Rigid Frame Bridge V-shaped Pier and 0# Block Construction Design

ABSTRACT

As China enters a new period of development and the vigorous development of informatization and intelligent technology, the originally extensive construction construction no longer complies with the current social development trend. Under this background, the lean construction using BIM technology gradually become the mainstream of construction management.

The traditional design and construction of bridges is based on abstract 2D drawings and boring text schemes. The imagination of three-dimensional space requires the knowledge and experience of designers and builders to accumulate. However, when the actual implementation is performed, there will often be cases of different perceptions. . If the user does not meet the user's needs after the construction is completed, it must be reworked, which may result in material waste, quality waste, labor waste, and equipment waste. At the same time, due to the large number of bridge structures and the complex structure of components, traditional construction methods and construction management models are not sufficient. The 3D visualization and component parameterization of BIM technology make the exchange of technically powerful two-dimensional drawings into three-dimensional visual communication that non-professionals can understand, facilitating communication and collaboration. At the same time, the 4D construction schedule simulation based on BIM technology and virtual construction can be simulated before the actual construction. The problems found in the simulation can be properly solved before the actual construction, reduce unnecessary losses, and at the same time can make the construction side and the project interests Related parties have common understanding. Therefore, BIM technology can achieve precise construction control and construction management for complex bridge structures.

This paper takes the three-span continuous rigid frame bridge of Qinhuai New River as an example, applies BIM technology to the construction of its V-shaped pier and 0# block, and conducts a systematic exploration of the BIM bridge construction direction. The construction application process is mainly divided into the following three parts.

1. Reverse Modeling of V-shaped Piers and 0# Blocks. Based on the existing design drawings, the V-shaped piers and 0# blocks of Qinhuai New River were modeled, site modeling and local rebar modeling were performed for the terrain, and three-dimensional carriers were provided for the construction of BIM applications.
2. Construction simulation of V-shaped pier and 0# block. The 3D model is used to analyze the construction process of V-shaped piers and 0# variable cross-section box girders;
3. Simulation of construction schedule for V-shaped pier and 0# block. The visualization of the construction plan facilitates cooperation among the participants and organizational management of the construction unit.

Key words：BIM technology；Bridge special construction；3D visualization；Virtual Construction

目 录

1 概述 1

1.1 南京岱山东路北延建设工程--跨秦淮新河大桥设计简介 1

1.2 跨秦淮新河大桥BIM应用及实施软件选择 1

1.2.1 桥梁工程特点 1

1.2.2 基于BIM的工程应用 2

1.2.3 应用软件的选择 2

1.3 国内外BIM应用实例简介 7

1.3.1 国内桥梁案例 7

1.3.2 国外桥梁案例 10

2 模型构建及4D施工进度模拟 13

2.1 建模标准 13

2.1.1 BIM模型深度 13

2.1.2 南京岱山东路北延建设工程--跨秦淮新河大桥施工阶段的LOD模型 14

2.2 南京岱山东路北延建设工程--跨秦淮新河大桥构件族库创建 16

2.2.1 Revit“族”基本介绍 16

2.2.2 跨秦淮新河大桥族构件创建 18

2. 3 跨秦淮新河大桥模型构建 38

2.3.1 桥梁基础模型构建 38

2.3.2 桥梁V墩模型构建 42

2.3.3 桥梁0#块单箱双室变截面箱梁模型构建 45

2.3.4 钢筋模型 47

2.3.5 桥梁模型整合 49

2.3.6 临时设施模型构建 50