Construction of prestressed concrete towers

Grünberg, Jüurgen; Göhlmann, Joachim

doi:10.1002/9783433603291.ch05

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finally, current wind turbine heights are limited by the size of cranes for construction as well as transport of large base components, but a concept by Khoshnevis has been presented to increase this possible height to above 100 meters using concrete 3D printing [167]. This offers an on-site production alternative to the pre-cast production of concrete elements that then get post-tensioned on-site [168], and digital prefabrication, described in the next section, could also offer an alternative to traditional prefabrication processes for current tower segments.…”

Section: B On Site Constructionmentioning

confidence: 99%

Digital Concrete: A Review

Wangler

Roussel

Bos

et al. 2019

Cement and Concrete Research

384

135

View full text Add to dashboard Cite

published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal.If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the "Taverne" license above, please follow below link for the End User

show abstract

Section: B On Site Constructionmentioning

confidence: 99%

Digital Concrete: A Review

Wangler

Roussel

Bos

et al. 2019

Cement and Concrete Research

384

135

View full text Add to dashboard Cite

show abstract

“…While the fatigue behaviour of existing concrete bridges with solid crosssections can often be considered non-critical due to the low stress ranges [10], investigations on materialoptimised, thin-walled and slender superstructure cross-sections show significantly higher fatigue stresses [11]. In the case of wind turbines, the fatigue design often dominates the entire structural design [12,13]. In order to mathematically verify an increased residual service life of these concrete structures or to establish the economic use of high-strength and ultra-high-strength concretes and thus realise a large CO2 and resource saving potential [9,14], a further development of the existing design concepts for concrete under fatigue loading is necessary.…”

Section: Introductionmentioning

confidence: 99%

Fatigue resistance of concrete – Influence of time-dependent scattering of compressive strength

Voß,

Schmidt,

Oettel

2024

Preprint

View full text Add to dashboard Cite

In terms of sustainability and resource efficiency, concrete structures such as bridges and wind turbines should be used as long as possible and – in the case of new constructions (as a replacement) – the cross-sections should be as slender and thin-walled as possible using high-performance or ultra-high performance concrete. A further development of the fatigue design would be useful both for the verification of a possible longer remaining service life and for a safe, but also for economical and sustainable design of these engineering structures, which are particularly exposed to fatigue. The verifications of structural safety for non-static loading of concrete in the national and international design codes and standards provide for high safety margins, particularly for concretes with high strengths. These result, among other things, from the large scatter of the number of cycles to failure in experimental fatigue tests. In this article, current verifications of structural safety for non-static loading of concrete are presented, results of compressive tests on concrete specimens of different strengths, geometries and test boundary conditions are summarised in a database and the scatter of the experimentally determined number of cycles to failure is statistically evaluated. In addition, the compressive strength of concrete, which significantly influence the scatter of the numbers of cycles to failure, are statistically analysed for concretes of different ages. From this, a continuous description of the strength development and its scatter is derived. Finally, the compressive stress levels of the previously analysed fatigue tests are adjusted using a stochastic approach in order to take into account the scatter of the compressive strength of concrete as a function of the concrete age. By applying the time-dependent scatter of the compressive strength of concrete, a significant reduction in the scatter bandwidth of the analysed numbers of cycles to failure in the S-N curve is achieved.

show abstract

Construction of prestressed concrete towers

Cited by 2 publications

References 0 publications

Digital Concrete: A Review

Digital Concrete: A Review

Fatigue resistance of concrete – Influence of time-dependent scattering of compressive strength

Contact Info

Product

Resources

About