Bridges are essential parts of transportation infrastructure because they allow people and products to travel safely and dependably. Bridge construction calls for meticulous planning, design, and execution. Lianggong Formwork Company offers a variety of formwork systems that can be utilized in bridge construction. The type and design of the bridge being built will determine the particular formwork system that is employed.
Bridges of many kinds can be built using Lianggong formwork techniques, including:
Bridges with Cable Stayed
The particular needs and limitations of the project, in addition to the construction team's experience and skill, will determine the formwork system to be used. Some potential formwork systems that could be employed are as follows:
Self-Climbing Formwork: This kind of formwork is fastened to the bridge pylon and is able to be lifted or lowered with the aid of hydraulic jacks. Concrete may be poured safely and effectively with this technology, which can be applied to the building of the pylon and bridge deck. Your best option in this situation will be Lianggong Hydraulic Auto-Climbing Formwork.
Jump formwork is a type of formwork that is raised vertically with the aid of a hydraulic system or crane. Both the bridge tower and the pylon may be built using this technique, which offers a high level of control and precision over the concrete pouring procedure. In this type of circumstance, Lianggong Cantilever Formwork or Hydraulic Auto-Climbing Formwork can be utilized.
Prefabricated formwork is a type of formwork that is assembled on-site after being pre-manufactured off-site. Precast concrete components including bridge segments, beams, and columns can be built using this technology, which offers a high level of consistency and quality control.
Bridges with arches
The geometry of the arch, the size and weight of the arch segments, the construction technique, and the resources and equipment available will all influence the formwork system selection for an arch bridge. Some potential formwork systems that could be employed are as follows:
(1) Timber formwork: Because of its affordability, availability, and adaptability, timber is a frequently utilized material for formwork. The arch's precise dimensions can be accommodated by custom-built timber formwork on site, which is also readily disassembled and reusable for other projects.
(2) Steel formwork: Concrete's weight and pressure can be supported by steel, a robust and long-lasting material. It is possible to save time and labor expenses by prefabricating steel formwork offsite and assembling it on site.
(3) Modular formwork: This method utilizes pre-engineered panels and parts to create the arch's shape. This technique is simple to install and disassemble with little effort, and it may be applied to arch bridges with repeating geometry.
Box Girder Bridges
For box girder bridges, some typical formwork systems are as follows:
As the concrete hardens, the formwork is raised vertically in stages using a mechanism called climbing formwork. This makes it possible to pour concrete for the tall piers and columns of box girder bridges quickly and continuously.
Tunnel formwork: In this system, the formwork forms a "tunnel" into which the concrete is poured. After that, the formwork is transported along the bridge's span. This works well for box girder bridges' vast, continuous spans.
Heavy-duty formwork and concrete pouring equipment are supported by gantry crane-mounted formwork, which consists of huge steel truss gantries that can span the width of the bridge. The formwork and gantries are supported by rails that run the length of the bridge. This is also effective for box girder bridges with long spans.
Specialized curved formwork is utilized because precast box girders frequently have curved profiles. These may include intricately bent steel or wood supports. Fiberglass or curved metal form liners are also frequently utilized.
Precast molds: To ensure precise shape, precast box girder segments are cast using massive steel molds. It is possible to reuse the molds numerous times. After that, the precast sections are raised and put together on the bridge spans.
Bridges with suspension
Formwork for columns and towers is frequently utilized for suspension bridges. This comprises:
The use of climbing formwork systems that may raise the formwork level by level as the concrete cures is common since suspension bridge towers are quite tall. A firm called Liangong manufactures self-climbing and climbing formwork systems that are appropriate for suspension bridge towers.
Steel truss gantry forms are enormous steel trusses that serve as a platform for the machinery used to pour concrete and support formwork. As the formwork lifts, the gantries ascend the towers on rails. For this use, Liangong manufactures steel truss gantry systems.
Specialized curved forms are necessary because suspension bridge towers frequently have curved profiles. Curved steel formwork systems are manufactured by Liangong.
To sum up, Lianggong formwork systems offer practical, adaptable, secure, and reasonably priced options for building various kinds of bridges. Bridges may be constructed swiftly and effectively, enhancing transportation infrastructure and bridging communities thanks to their adaptability, robustness, and simplicity of use. Lianggong formwork technologies, which offer creative solutions tailored to the particular requirements of each project, are certain to have a big impact on how bridge construction develops in the future.
Lianggong formwork systems have been used in various bridge construction projects around the world. The systems provide a cost-effective, efficient, and safe solution for constructing bridges, while also allowing for customization to fit the unique needs of each project. In this article, we will discuss some examples of bridge projects that utilized Lianggong formwork systems.
Stonecutters Bridge, Hong Kong: Liangong provided the self-climbing formwork for the bridge's two main towers, which reach up to 292 m high.
Sutong Bridge, China: Liangong supplied the self-climbing scaffolding and formwork for the bridge's main arch span and the climbing scaffolding for its cable towers.
Tsing Ma Bridge, Hong Kong: Liangong provided materials and self-climbing formwork for the construction of the bridge's main span, box girder, and 208 m high towers.
Xijiang River Bridge, China: Liangong supplied a self-climbing formwork and heavy-duty gantry crane for the construction of this bridge's rockets, arches and 168 m tall main towers.
Wujiang Yangtze Bridge, China: Liangong provided automatic self-climbing formwork for the construction of the bridge's 160 m tall main suspension towers.
Balinghe Bridge, China: Liangong supplied large-scale scaffolding and formwork for the construction of this bridge's concrete arch, columns and 164 m tall towers.
Stonecutters Bridge, Hong Kong: The Stonecutters Bridge is a cable-stayed bridge that spans the Rambler Channel in Hong Kong. The bridge is the longest cable-stayed bridge in the world and was constructed using Lianggong's Hydraulic Auto-Climbing Formwork System. The system allowed for the rapid construction of the bridge's unique design, which includes two pre-cast concrete towers that rise 298 meters above the water.
Second Penang Bridge, Malaysia
The Second Penang Bridge is a cable-stayed bridge that spans the Penang Strait in Malaysia. The bridge is the longest bridge in Southeast Asia and was constructed using Lianggong's Hydraulic Auto-Climbing Formwork System. The system allowed for the efficient construction of the bridge's complex design, which includes two 230-meter-high concrete towers and a main span of 24 meters.
New Champlain Bridge, Canada
The New Champlain Bridge is a box girder bridge that spans the Saint Lawrence River in Montreal, Canada. The bridge was constructed using lianggong formwork system, which allowed for the efficient construction of the bridge's 3.4-kilometer-long superstructure. The system also allowed for customization to fit the unique design requirements of the bridge.
HZMB Hong Kong-Zhuhai-Macau Bridge, China
The Hong Kong-Zhuhai-Macau Bridge is a complex bridge system that spans the Lingdingyang Channel in China. The bridge is the longest sea-crossing bridge in the world and consists of various types of bridges, including cable-stayed bridges, box girder bridges, and suspension bridges. Lianggong formwork systems were used in the construction of the bridge's various components, including the cable-stayed bridge towers, box girder bridge superstructures, and suspension bridge cables.
In conclusion, Lianggong formwork systems have been used in various bridge construction projects around the world. These examples show the versatility, efficiency, safety, and cost-effectiveness of Lianggong formwork systems in constructing bridges of various types and sizes. With their customizable design, these systems allow for the construction of unique bridge designs while also providing strong and durable support to traffic and loads. Lianggong formwork systems are sure to continue playing a significant role in shaping the future of bridge construction.
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