Construction Engineering

Hybrid prestressed concrete beams providing flexibility for building services

Modern buildings must increasingly ensure that technical installations be accommodated in the available intermediate floor space. Precast prestressed concrete beams can be used as an alternative to steel or composite steel beams with large openings. In their conventional design, the insertion of the reinforcing steel around their openings is very costly and time-consuming. As part of an AiF research project, a hybrid prestressed concrete beam with large openings was investigated in which easy-to-install, extensive reinforcing elements (perforated plates) were used in combination with steel...

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Issue 2020-11

System and method for producing prestressed concrete composite beam ...

(10) WO 2020/075195 Al (22) 10.10.2019 (43) 16.04.2020 (57) A system and method for manufacturing composite prestressed concrete (PSC) beams using Basalt Fibre Reinforced Polymer (BFRP) bars as a...

Issue 2016-12

Precast I-Beam concrete panels

(10) US 9,464,437 B1 (22) 09.12.2015 (45) 11.10.2016 (57) The precast I-beam concrete panels include an elongate I-beam embedded in an elongate concrete beam that has a platform or panel parallel to...

Issue 2014-02 In a monolithic and segmental construction method

UHPFRC beams with hollow box cross-section

Background Contrary to the monolithic design, for segment construction single building units are prefabricated in the precast concrete factory for later assembly at the construction site. Using joints...

Issue 2018-08

Pre-stressed steel concrete beam

(11) RU 2657881 C1 (22) 10.04.2017 (45) 18.06.2018 ((57) Field: Construction. Substance: Invention relates to the field of construction and can be used as beams of ceilings and coatings of residential...

Issue 2019-02 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...