In a monolithic and segmental construction method

UHPFRC beams with hollow box cross-section

→ 1 Shear-compression test specimen and diagram of the compression stress and joint inclination

→ 2 Pictures of the concrete pressure failure of a segmental beam taken by a high-speed camera (sequencing from left to right)

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 and prestressing tendons, they are assembled to make a complete building component, as bridge superstructures, pillars, various tower shafts, for example. Besides the general advantages of industrial prefabrication of the segments at the precast concrete factory, it is moreover possible to install the building structures at the construction site within a very short period of time. For the...

Issue 11/2014

Production and testing of thin-walled UHPFRC precast elements

1. Introduction This article reports on experimental tests carried out as part of a DFG research project at the iBMB, Department of Concrete Structures, at Braunschweig University of Technology. This...

Issue 02/2014 Day 2: Mittwoch, 19th February 2014

Structural precast construction 2 – Innovative technical solutions

102 With projecting loops to peak load Punching shear tests on precast floor slabs lead to European Technical Approval (ETA) Mit überragenden Schlaufen zur Höchstlast Durchstanzversuch an...

Issue 06/2023

Market potential for precast bridges – resource-saving employment of UHPFRC precast segments

The majority of concrete bridges in use in Germany are in extremely poor condition and must be replaced in the near future. The construction of new build bridges, however, entails immense CO2...

Issue 06/2022

Flexible joint connecting device of precast body segment, precast body segment joining-type underwater tunnel construction method using same, and underwater tunnel constructed thereby

(10) US 2022/0098818 Al (22) 28.11.2019 (43) 31.03.2022 (57) The present disclosure relates to: a flexible joint connecting device used for sequentially coupling precast concrete segments so as to...

Issue 02/2016 Findings for real-life applications

Experimental investigations on pipe joints and precast tunnel lining segments –

Overview The aim of the current research project on highly stressed joints in tunnel construction, undertaken by the Department of concrete structures at TUM, is to experimentally verify the approach...