Jan. 29th, 2024
Can you distinguish the different types of Beam launcher and Launching Gantry? When you need to use such equipment, how do you choose the Beam launcher or Launching Gantry that suits you according to your needs? They obviously have the same meaning or function, but why are the designs and names different? Don’t worry, let’s introduce it to you in detail below!
First, Detailed Introduction of Beam Launcher
Beam Launcher is a device that places prefabricated beams (U-shaped, I-shaped, T-shaped beams) onto prefabricated bridge piers. Beam Launcher belongs to the category of cranes because its main function is to lift the beam, transport it to the designated location and then put it down. But it is very different from cranes in the general sense. The conditions required by the Beam Launcher are more stringent and require moving between beams or piers.
Beam Launcher can be widely used in various road and bridge construction processes and plays an extremely important role. Since the body of the Beam Launcher is often relatively large and exceeds the transportation limit, it must be disassembled and transported, and then assembled and used after arriving at the construction site.
Types of Beam Launcher
1. Double Truss Beam Launcher
The boom of this bridge erecting machine is composed of two left and right box beams. The two beams penetrate the fuselage and extend to the front and rear ends. At both ends there are folding uprights each consisting of a two-legged pole. It is characterized by being lightweight and more economical, with low production cost. The truss is composed of a hollow steel structure, but at the same time it can not only erect relatively low-tonnage beams, but also high-tonnage beams. The maximum load-bearing capacity is determined by the design data and structure of this bridge erecting machine, this bridge erecting machine, this bridge erecting machine has high practicality.
2. Single Box Beam Launcher
It is one of the bridge construction machines. Its most prominent feature in appearance is that its boom is a box beam, cantilevered forward, and has a foldable column at its front end (composed of two left and right beams). The machine can drive into the bridge position by itself under no-load condition, then straighten the front column and support it on the front pier. When erecting a bridge, the machine can drive into the bridge position on its own without load. The beams must first be transferred from the railway flat car to a special beam transport car using a special gantry crane, and then the beam transport car and the bridge erecting machine are connected. Align the ends, use two lifting beam trolleys running on the boom of the bridge erecting machine to lift the beam, move forward along the boom, and reach the bridge position to drop the beam.
The advantage of this kind of beam launcher is that it does not need to be pushed by a locomotive, and the feeding beam does not need a bridgehead branch line. The degree of mechanization is improved, and the safety performance is improved. The main feature is the high efficiency of self-travelling construction. It’s composed of the main beam, leg and winch trolley.
Secondly, Detailed Introduction of Lanching Gantry
The functions and application scenarios of Launching Gantry are the same as those of Beam Launcher. They are both necessary machines for road and bridge equipment construction and play an irreplaceable role in construction sites. They have the same adaptability to the erection of various beam types and road and bridge scenarios. Matching equipment can be flexibly used on highways, railways, viaducts, cable-stayed bridges, overpasses, light rails, subways and other construction sites.
Types of Launching Gantry
1. Segment Launching Gantry
Segment Launching Gantry is generally used for the erection of highway bridges and MRT bridges, using prefabricated segmental prestressed concrete box girder (PC beam) components. Its main feature is movable remote control and high construction efficiency. It consists of main beam, outriggers and winch trolley. The main beam plays a load-bearing role, and the outriggers play the functions of lateral movement, longitudinal movement, leveling, support, span, scale span, etc. The winch trolley is used for hoisting prefabricated beams. Segment Launching Gantry is often used to lift U/I/T type segmental beams with various cross-section designs, hence the name Segment Launching Gantry.
In addition, Segment Launching Gantry can be simply divided into Span by Span Segment Launching Gantry and Balanced Cantilever Segmental Launching Gantry in terms of road and bridge construction. Span by Span Segment Launching Gantry is a launching gantry with expansion joints between beams. Balanced Cantilever Segmental Launching Gantry is a launching gantry with continuous beams and no expansion joints.
2.Full Span Launching Gantry
As the name suggests, the full span launching gantry can directly transport a long complete beam to the bridge pier. The beam between the two pier columns is a complete span beam. The cross-section is usually box-shaped, and the commonly used beam types in different countries are prefabricated according to geographical conditions and construction requirements. Such full-span prefabricated beams are conducive to improving construction efficiency and shortening the construction period. This effectively avoids unfavorable situations such as mismatch between beams and the need for precise data control and rework. Its integral beams are typically 24m to 55m long and weigh between 450t and 1,700t. Widely used in high-speed railway bridges and cross-sea bridges.
The Difference Between These Products
On Wikipedia, the above product types all belong to the same product in terms of broad categories. Beam launcher and launching gantry are nicknames for each other, but there are obvious differences in actual use and appearance. You can learn from their specific classification names. You can see their corresponding differences and their outstanding characteristics. To put it simply, their main purpose is to build bridges and roads, but in fact, the ways in which they are used are unique.
In Conclusion
There are different names in the world, but their functions are similar or consistent. How to choose a high-quality bridge erecting machine requires careful selection and careful inspection. Welcome to Huada for on-site inspection. Huadcrane is confident enough to face all your professional needs. Here are the reasons why many people choose Huada:
Advantages of Huada
1. Accident Prevention and Quality Assurance
Huada will cultivate a sense of responsibility from the root: cultivate the professionalism of all employees and enhance their sense of responsibility. Huada's employees have strict requirements. From the design of the bridge erecting machine to the production, transportation and sales, we have a complete and mature execution system and supervision system to ensure that every aspect of your customized bridge erecting machine is efficient and of high quality. The guarantee allows every construction team to enjoy our sincere and thoughtful products with confidence and improve the operation efficiency of the construction site.
In addition, Huada will provide the construction team with a complete bridge erecting machine precautions manual, which describes in detail how to carry out simple and efficient maintenance and safety protection of the bridge erecting machine, reminding offline engineering units and laying units to follow safety system engineering and the principles and requirements of comprehensive safety management, formulate specific safety management systems and effectively supervise and implement them. For example: Strengthen the training of relevant technical personnel; scientifically customize the construction period to gain sufficient time for the erection units to complete the erection tasks with quality and quantity and eliminate accidental safety hazards; strictly implement and supervise the inspection work of the project, requiring every Each step of the process needs to meet the corresponding quality standards. Ensure the quality and safety of the bridge erecting machine from start to finish.
2. Huada Provides Professional Customization Services
You can report to us the data of the beam launcher you need based on the specific conditions of your construction site, such as lifting height, span, load-bearing capacity, color and other detailed requirements. Huada will provide you with a detailed quotation and Customized solutions, from drawing design and 3D modeling for your products to production and final sales and transportation, you can choose to participate in the entire experience, allowing you to personally feel Huada's professionalism and sincerity in treating products and customers. If you have any additions or questions during this period, you can communicate with our professionals efficiently at any time. We are committed to meeting all your reasonable needs.
3. Ultimate After-sales Service Experience
Huada will deliver your customized
beam launcher to your address in a disassembled state within the specified date. Then it can provide you with professional cross-border installation services and communicate in English, the international language. In addition, you can also choose the local trustworthy installation team we recommend for you to ensure that your bridge erecting machine can be installed smoothly and put into use for an efficient construction process. Huada also provides lifetime product maintenance services. During the use of the bridge erecting machine, you can consult any questions about the product at any time.
If you have any related needs, please contact Huadcrane directly. We will work 24 hours a day to send you reasonable quotation references and provide you with professional consulting services！
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