Safety Concept for Textile-Reinforced Concrete Structures with Bending Load

Applied Sciences

Sergej Rempel¹  Josef Hegger²  Marcus Ricker³ 

[1] Hochschule Augsburg, University of Applied Sciences, An der Hochschule 1, 86161 Augsburg, Germany;Institute of Structural Concrete, RWTH Aachen University, Mies-van-der-Rohe-Straße 1, 52074 Aachen, Germany;Institute of Structural Engineering, Hochschule Biberach University of Applied Sciences, Karlstraße 11, 88400 Biberach, Germany;

关键词: carbon concrete;    textile-reinforced concrete;    bending load;    safety concept;    safety factor;   

DOI  :  10.3390/app10207328

来源: DOAJ

【 摘 要 】

In most countries, for the production and execution of concrete structures with textile reinforcement, building owners must have a general approval (e.g., “abZ” in Germany) or an individual license (e.g., “ZiE” in Germany). Therefore, it is quite common for building authorities to request experimental tests that evaluate the ultimate limit state (ULS) and the serviceability limit state (SLS). However, these experimental tests are detailed, time-consuming and expensive. A practical and simple design model would help to reduce the number of tests needed and would offer structural planners a useful tool. An important aspect is that such design model must fulfil a set of reliability requirements in order to guarantee an adequate safety standard. To this end, probabilistic calculations are required. For the setup of such model, different parameters must be considered, namely the effective depth d and the tensile failure stress of the textile f_t for the concrete compressive strength f_c. This article presents the probabilistic calculations needed to attain a general safety factor γ_T that satisfies all the safety requirements for the textile reinforcement of concrete structures with bending load.

【 授权许可】

Unknown