scholarly journals Impact experiments with reinforced concrete plates of different thicknesses

2019 ◽  
Vol 21 (2) ◽  
pp. 587-598 ◽  
Author(s):  
Marcus Hering ◽  
Franz Bracklow ◽  
Tino Kühn ◽  
Manfred Curbach
Keyword(s):  
Reinforced Concrete ◽  
Concrete Plates ◽  
Impact Experiments

scholarly journals Reinforced Concrete Plates under Impact Load—Damage Quantification

Materials ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 4554
Author(s):  
Marcus Hering ◽  
Franz Bracklow ◽  
Silke Scheerer ◽  
Manfred Curbach
Keyword(s):  
Reinforced Concrete ◽  
Impact Load ◽  
Experimental Conditions ◽  
Steel Reinforced Concrete ◽  
Before And After ◽  
Concrete Plates ◽  
The One ◽  
Objective Description ◽  
The Impact ◽  
Impact Experiments

A large number of impact experiments have been carried out at the Technische Universität Dresden in recent years in several research projects. The focus was on reinforced concrete plates on the one hand and on subsequently strengthened reinforced concrete plates on the other hand. Based on these investigations, two fundamental tasks arose: (1) finding an objective description of the damage of components made of steel reinforced concrete that had previously been subjected to an impact load and (2) quantification of the effect of a subsequently applied strengthening layer. In this paper we will focus on both. At first, the experimental conditions and program as well as the used drop tower facility at the Otto Mohr Laboratory of the Technische Universität Dresden are briefly explained. In the summary presentation of the main test results, the focus is on the observed component damage. Based on the observations, an approach for a damage description is presented. To define global damage, the stiffness of the investigated structural components before and after the impact event is used. At the end of the paper, the potential of the method, but also gaps in knowledge and research needs are discussed.

Strength and Deformation of Combined Beams with Side Reinforced Plates

2019 ◽  
Vol 968 ◽  
pp. 234-239
Author(s):  
Talyat Azizov ◽  
Oleksii Melnik ◽  
Oleksandr Myza
Keyword(s):  
Experimental Data ◽  
Reinforced Concrete ◽  
Experimental Studies ◽  
Calculated Data ◽  
Concrete Plate ◽  
Combined Action ◽  
Strength And Deformation ◽  
Concrete Plates ◽  
Good Agreement

The results of experimental studies of combined beams consisting of a stone part, reinforced with side reinforced concrete plates are given. Experimentally shown the viability of the proposed structures. The conditions for ensuring the combined action of a stone beam and a reinforced concrete plate are given. Cases are shown when one-sided plates can be used and when double-sided reinforced concrete plates can be used. A comparison of experimental data with the data calculated by the authors developed methods is given. A good agreement between theoretical and calculated data is shown.

scholarly journals Strengthening of RC plates with mineral-bonded composite layers for enhanced impact safety

2020 ◽  
Vol 323 ◽  
pp. 01015
Author(s):  
Marcus Hering ◽  
Manfred Curbach
Keyword(s):  
Reinforced Concrete ◽  
Test Facility ◽  
Experimental Program ◽  
Normal Strength Concrete ◽  
Strength Concrete ◽  
Reinforcement Steel ◽  
Composite Layers ◽  
Bonded Composite ◽  
Normal Strength ◽  
Impact Experiments

The presented paper deals with a series of impact experiments conducted in the drop tower facility of the Otto Mohr Laboratory (OML) at the Technische Universität Dresden. The presented research results were generated in three projects. A number of reinforced concrete (RC) plates which were subsequently strengthened on the not-impacted side were produced and tested. As basic materials for the RC plates, a normal strength concrete (C35/45) and conventional BSt500 reinforcement steel were used. Different material combinations, cement-bonded composites were chosen for the subsequently applied strengthening layer. The paper presents the experimental program, the used test facility, and the results of the experiments and their interpretation.

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