Customer's area
Infrastructure that keeps cities moving.
Artworks
Cities function on a complex network of infrastructure. Bridges, viaducts, highways, sanitation systems, railways, ports, and industrial structures are fundamental elements for ensuring mobility, supply, and economic development.
These structures support the functioning of cities and often need to be built or maintained without disrupting urban or logistical flow.
Therefore, infrastructure projects require rigorous planning, efficient structural solutions, and secure access and support systems throughout all phases of execution.
It is in this scenario that the solutions of Construction and Access Engineering, fundamental for enabling complex projects with technical precision, operational safety, and productive efficiency.
A ROHR It operates precisely in this area: offering applied engineering, structural systems, and specialized equipment for infrastructure projects throughout Brazil.
Large-scale projects require specialized engineering solutions.
When we talk about large engineering projects, we often immediately think of bridges and viaducts. However, the world of infrastructure is much broader.
Various types of projects require robust structural solutions and specialized access systems, such as:
- Bridges
- viaducts
- Footbridges and bicycle footbridges
- Roads and highways
- Active railways and rail works
- Sanitation systems and treatment plants
- Ports and maritime structures
- Dams and hydraulic structures
- Energy and industrial infrastructure
- Urban mobility works
These projects often present significant technical challenges, such as:
- execution of large structural spans
- complex construction logistics
- urban or operational interferences
- need for geometric precision
- operational safety of the teams
In this context, solutions of construction engineering and access They become essential to ensure safe execution, productivity, and structural quality.
Infrastructure is a business segment of ROHR.
ROHR operates in infrastructure projects throughout Brazil, offering structural solutions and access systems for projects of varying complexity.
With experience in large-scale projects, the company develops solutions tailored to the conditions of each project, always considering logistics, safety, and project productivity.
Discover ROHR's infrastructure segment.
Launching of beams and segments on bridges and viaducts.
In bridge and viaduct projects, the launching of beams and segments is a critical stage of the construction. This requires specialized equipment that allows for the precise transport and positioning of large structural elements.
Among the main systems used are:
SICET Launching Truss
Self-propelled equipment used for launching precast beams into their final position within the structure.
Carrelone
A gantry crane on tires, used in pairs for the longitudinal transport of precast beams within the construction site.
Whistles
Equipment used in pairs for the transverse movement of precast beams during the concreting and positioning process.
Learn about beam and segment launching systems.
Successive cantilever: a solution for large spans
In the construction of bridges and viaducts with large spans, one of the most commonly used techniques is... successive balance.
In this construction method, segments of the structure are built progressively from the pillars, advancing simultaneously on both sides until the final junction of the structure.
This technique allows for the construction of bridges over rivers, valleys, highways, or railways. without the need for complete ground shoring., being widely used in large infrastructure projects.
Learn more about the successive balance system.
Other systems used in infrastructure projects
In addition to beam launching systems and incremental launching, ROHR's portfolio for infrastructure projects includes several other solutions:
- structural form systems
- high-capacity formwork
- technical access scaffolding
- auxiliary structures for moving beams
- work platforms at height
- structural access stairs
These systems can be combined in a customized way for each project, creating complete structural solutions for different engineering scenarios.
Case studies of applied engineering in infrastructure
From the construction of international bridges to urban mobility projects, various infrastructure projects in Brazil rely on ROHR's structural solutions.
Each project presents specific challenges, such as large structural spans, operational interferences, or complex execution logistics. Therefore, solutions are developed in a customized way to meet the characteristics of each project.
Below are some examples of applications of construction and access engineering in infrastructure projects.
 |
Bridge Journalist Joel Silveira Located in the state of Sergipe and crossing the Vaza-Barris River, the Jornalista Joel Silveira bridge is an important road link in the region. Structural solutions such as were used in the execution of the work. successive swing, arch hoisting and shoring systems, allowing for the safe construction of structures with large spans. |
 |
New Brazil-Paraguay Bridge The new international bridge connects Foz do Iguaçu, in Brazil, to the city of Presidente Franco, in Paraguay, expanding the logistical infrastructure between the two countries. The project is of great structural scale and required technical solutions capable of assisting in the execution of the bridge's structures. |
 |
Viaducts with formwork and shoring systems The construction of viaducts in Hortolândia used... HF formwork systems and shoring solutions, which ensure structural stability during concreting and geometric control of the structures. |
 |
Viaduct with special structural shapes The construction of the Tancredo Neves viaduct included solutions that structural forms developed to meet the specific characteristics of the work., contributing to the precise execution of concrete structures. |
 |
Viaduct over active railway line In the construction of an overpass over an active railway line, structural solutions were used that allowed the work to be carried out without interfering with railway operations.
|
 |
Shoring solution for treatment plant In the execution of the structures of Atuba South Wastewater Treatment PlantAt the construction of an important treatment plant in the Curitiba region, innovative formwork solutions were applied to support the structural loads during the concreting process. |
 |
Urban mobility cycle path Urban mobility projects are also part of the infrastructure universe. The construction of the pedestrian and bicycle bridge over the Pinheiros River utilized structural solutions that allowed the project to be carried out in an urban area with heavy traffic. The structure connects important mobility corridors and expands travel options for cyclists and pedestrians. |
See more infrastructure projects with ROHR solutions.
Are you familiar with ROHR's infrastructure catalog?
To learn about all the solutions available for infrastructure projects, ROHR offers a complete catalog with its main systems and applications.
National presence to support major projects.
Infrastructure projects take place in all regions of the country and require companies with broad service capacity.
ROHR has national care structure, with strategically positioned branches to serve projects in different states and guarantee technical and logistical support throughout the entire execution.
Frequently asked questions about infrastructure engineering
When should incremental cantilever be used in bridge construction?
The incremental launching method is mainly used in long-span bridges when full shoring on the ground is not feasible. The method allows structural segments to be built starting from the piers, progressing gradually until the final abutment of the structure.
What is the function of formwork in infrastructure projects?
Shoring is a temporary structure used to support the weight of formwork and concrete during construction. It ensures structural stability, geometric control, and safety during concreting.
What are beam launching systems used for?
These systems are used to transport and position precast beams or segments in bridges and viaducts, allowing for the precise and safe construction of large structural spans.
What is the difference between formwork and shoring?
Formwork defines the shape of concrete structures during the pouring process. Shoring, on the other hand, consists of support structures that hold the formwork and the loads of the construction until the concrete reaches sufficient strength.
How does construction and access engineering contribute to infrastructure projects?
It enables the safe execution of complex structures through formwork systems, shoring, scaffolding, launching equipment, and other structural solutions that aid the construction process.
Engineering that keeps cities moving.
Infrastructure requires field experience, planning, and reliable structural solutions.
Major projects cannot be stopped.
With applied engineering, specialized equipment, and nationwide reach, ROHR contributes to making infrastructure projects viable with safety, efficiency, and precision in execution.
Infrastructure requires field experience and executive precision.
The engineer's DNA is in ROHR.
Request a quote for your project.
If your project involves bridges, viaducts, urban mobility, sanitation, or other infrastructure structures, rely on ROHR's experience in solutions. Construction and Access Engineering.
