by As the name implies, the fabricated bridge is different from the traditional bridge construction methods such as reinforcement binding and concrete pouring.
For the fabricated bridge, some or all components of the bridge substructure (pier column, bearing platform and capping beam) and superstructure (box beam, plate beam and T beam) are processed and formed in the prefabricated component factory, and then transported to the construction site for hoisting and splicing to form the main body of the bridge.
Each component of the bridge is mechanically connected through the embedded hole position, embedded reinforcement and connection device processed in the prefabrication production process.
The grouting sleeve in the component is used for grouting, so that the concrete can fully fill the pores between the components and achieve the overall strengthening effect.
1 background of prefabricated bridges with the progress of society and the improvement of people’s environmental protection awareness, the construction environment of bridges has been paid more and more attention by the government and people, especially for urban core bridges.
The construction period, construction noise pollution and traffic pressure of bridges have gradually become the primary consideration in Bridge design.
Prefabricated technology has the advantages of component production standard, fast and convenient on-site installation, energy saving and environmental protection.
It can reduce the impact on the atmospheric environment and traffic roads, improve the quality and safety quality, and civilized construction level.
It is the development trend of China’s bridge industry.
According to the opinions of the general office of the State Council on promoting the sustainable and healthy development of the construction industry and the requirements of the 13th five year plan of the Ministry of housing and urban rural development, we will speed up industrial upgrading and promote the development of the construction industry.
Prefabricated buildings and prefabricated pipe racks will be widely promoted throughout the country.
Through the industrialized manufacturing and construction of prefabricated buildings, we will achieve the goal of reducing energy consumption and emission reduction of construction waste.
2.
Detailed design at present, in the stage of detailed design, there are many problems such as large number of drawings, many detailed designs, troublesome drawing of reinforcement, and many design changes and modifications.
Using the assembled BIM software planbar to create intelligent components in a parametric way can quickly improve the modeling efficiency, ensure the real-time two-way linkage of two-dimensional drawings and three-dimensional models, and improve the quality and efficiency of detailed design.
Planbar software is the software used for high-quality comprehensive solutions for industrial design of buildings.
It provides good help for the automatic design of prefabricated buildings and the refinement of prefabricated components.
Its application range from low-cost series generation to complex professional prefabricated component design, and it is fast, efficient and zero error.
Planbar mainly has the following 11 functions: 1.
2D / 3D working on the same platform planbar contains 2D and 3D related modules at the same time.
It uses 2D working mode to create 3D models, realizes the creation and modification of 2D information and 3D models in the same platform, and realizes the real BIM working mode.
2.
Create 3D models quickly, regularly and accurately by using planbar’s “Wizard” function, the project manager saves the wall, column, beam, window, door and other components as guides to establish a unified standard for company / project modeling.
The project designer can right-click the guide component to quickly assemble and create the building model.
Since the parameters and properties of the guide component are all called intelligently, there is no need to reset and calculate, so as to realize the application of rapid, standardized and accurate model creation.
3.
Efficient and intelligent deepening design and efficient creation of 3D rebar model: planbar provides a rich rebar shape library for users to call freely.
The user can also create any rebar shape through user-defined parameters.
In addition, the diversified reinforcement arrangement methods provided by planbar can efficiently arrange various responsible members and improve work efficiency.
Preparation of various intelligent components: use the planbar Python part function to prepare various intelligent components (walls, beams, plates, columns…) to realize rapid and intelligent production of profiles, reinforcement, embedded parts, etc., and realize parametric and intelligent deepening design.
4.
Optimize BIM model to avoid collision and reduce losses.
Use planbar’s collision inspection function to conduct collision inspection between reinforcement and reinforcement, and between reinforcement and embedded parts, so as to quickly find unreasonable problems in design and solve them in time, minimize errors and minimize the risk of project rework.
5.
Model lightweight processing: the planbar model lightweight processing function is applied to display more models for users and ensure their smoothness in the display process.
6.
Model company / project drawing standard: one click drawing.
The project manager uses the planbar layout directory function to customize the company / project drawing standard, including template drawing, production drawing, embedded part drawing, reinforcement drawing, statistical table, etc.
After the project manager has defined it, the user only needs to select the corresponding layout for drawing, and the drawing can be drawn with one click, which is convenient to use and ensures that the participants use the same standard.
7.
The list generator, report and legend of planbar can generate the bill of materials in batch.
With one click, you can quickly create the required bill of materials for the user in different formats, such as component list, single component bill of materials, factory rebar processing blanking list, etc.
The export format of BOM can be customized based on the template.
8.
The 3D visual display project planbar integrates Cinema4D, and its excellent model rendering and roaming animation effects provide guarantee for the 3D visual display project.
9.
Promote the production of construction industry and provide automatic production equipment data: Currently, the production data provided by planbar can be seamlessly connected with most automatic production lines in the world.
For example, the production data can be exported in unittechnik and pXML formats and then transferred to the central control system to realize the efficient operation of the factory production line..
