Precast columns

New possibilities of concrete technology

Columns for high-rise buildings are designed and constructed both by the in-situ and the precast construction method. The decision on the suitable method chosen is influenced by such criteria as cost, deadline and quality requirements. When the precast construction method is found to be advantageous, a further distinction can be made between reinforced-concrete and composite steel solutions [1].

Columns for high-rise buildings which have high demands on the architectural perception (Fig. 1) are often constructed as composite steel columns. This construction method enables the design of members of great slenderness and high loadbearing capacity with small cross-sections. Due to the limitations imposed by the national design rules, members of the desired great slenderness and high loadbearing capacity can currently often not be realized with the reinforced-concrete construction method.

This article reports on the theoretical and experimental investigations carried out at the iBMB...

Related articles:

Issue 04/2010 High strength Reinforcement

New ways of efficient reinforcement for columns

Standards regulations and divergences Current structural codes permit yield strength of reinforcement bars up to fy = 500 N/mm² (DIN 1045-1) respectively fy ? 600 N/mm² (EN 1992-1-1). Reinforcement...

more
Issue 02/2020 Testing and analysis of the structural behavior

3D-printed reinforced-concrete elements

Additive manufacture (AM) and/or 3D printing with concrete represents a highly innovative and future-oriented production technology for the construction industry. For one, linkage with modern...

more
Issue 06/2018

Steel, Reinforced concrete column

(10) WO 2018/069752 Al (22) 14.10.2016 (43) 19.04.2018 (57) A steel reinforced concrete column for a high rise building comprises a plurality of hot-rolled steel sections extending longitudinally...

more
Issue 06/2019

Production of the first concrete and reinforced concrete columns by means of 3D printing with concrete

1. Introduction According to estimates of the Federal Statistical Office, Germany has a lack of about one million homes. Moreover, many building structures in Germany are old and dilapidated and need...

more
Issue 02/2018 Part 2: Design and construction

The new DAfStb Guideline on UHPC

The design and construction part of the DAfStb Guideline on UHPC replicates the structure of EN 1992-1-1. The verification methods are based on the design principles for reinforced and prestressed...

more