Prestressed steel-concrete bearing platform structure of continuous rigid frame bridge and construction method of prestressed steel-concrete bearing platform structure

(10) CN114922054

(22) 31.05.2022

(43) 19.08.2022

(57) The invention discloses a prestressed steel-concrete bearing platform structure of a continuous rigid frame bridge and a construction method of the prestressed steel-concrete bearing platform structure, and belongs to the technical field of bridge construction. The steel-concrete combined section is arranged at the bearing platform, so that the part above the bearing platform of the bridge adopts a steel structure form with light self weight and various shapes, the subsequent construction efficiency of the bridge is improved, the foundation load is reduced, and the foundation concrete consumption is saved. During construction of the steel-concrete bearing platform, the installation precision of a super-large bearing platform steel structure is ensured through reasonable construction machinery and measures, the steel-concrete bearing platform adopts a prestress construction technology, cracks can be avoided, the overall tensile strength of the bearing platform is improved, and the bearing capacity of the bearing platform is improved.

(71) Zhejiang Zhongtian Hengzhu Steel Structure Co. Ltd., CN

x

Related articles:

Issue 02/2019 New findings on the fatigue behavior of precast elements

Behavior of prestressed concrete girders

For prestressed precast concrete elements used in structures with predominantly cyclic loading, for example craneway girders in industrial structures or precast girders in bridge constructions, design...

more
Issue 10/2013 Innogration

Sandwich construction combined with prestress

Ceiltec floor elements consist of two thin concrete shells connected by a purpose-developed perforated ribbed construction to form a sandwich element. The main advantages are a very high loadbearing...

more
Issue 08/2013 Research project of TU Vienna

Thin-walled precast concrete girders for bridge construction and civil engineering

In building and industrial construction, lattice-girder floor slabs and double-wall elements have been successfully used for years. These semi-precast elements of 5-7cm thickness serve as permanent...

more
Issue 09/2025 HOLCIM

Germany‘s first modular bridge made of prestressed carbon-reinforced concrete is situated in Oldenburg

Henceforth, Germany‘s first CPC modular bridge of the Optima type is situated in Oldenburg (Lower Saxony). For the new pedestrian and cycle path crossing, the city relies on a modern construction...

more
Issue 02/2021

Balanced-lift method for prestressed concrete bridges – 25 % lower cost compared to steel-concrete composite bridges

The first-time application of the balanced-lift method for the bridges over the Lahnbach and Lafnitz rivers in Austria proved that these prestressed concrete bridges with 2.0?m high bridge girders...

more