Punching shear failure in thin slabs under concentrated loads can cause stresses near columns. The use of steel fiber is a practical way to improve slab-column connection's punching strength and deformation capacity. In this study, the capacity behavior fiber-reinforced concrete flat are examined force. Ten small-scale were tested, eight which had two without. Two parameters studied paper, volu...

Progressive collapse of reinforced concrete flat plate systems can be significantly influenced by the post-punching performance their slab–column joints under large deformations. This work presents a series static tests on four joint specimens with slab in-plane restraint. The effects different punching directions (upward and downward) embedded beams were studied. test results reveal that load-...

This project is aimed to study and manufacture a novel autochecking and punch system of FPC, which is based on computer vision, image processing and automatic control technique. The system realizes the auto-punching process by a serial of workflow, including catching material, taking photos, punching, dropping material and home moving. Coordinate calibration is the core of automatic punch syste...

This paper presents a validated finite element modeling approach for simulating shear cutting, needing minimal amount of experimental characterization. Only one uniaxial tensile test and force–displacement relationship from punching experiment are needed calibration, with maintained prediction accuracy compared to more experimentally demanding approaches. A key ingredient is the observation tha...

We conducted a controlled experiment to test the plant vigor and the plant stress hypotheses. The two hypotheses associate plant physiological conditions to insect feeding mode and performance. We exposed tomato, Lycopersicon esculentum, to different types of growing conditions: optimal (vigorous plants), resource based stress (water and/or nutrient deficit), and physical stress (punched hole i...

Nearly no load bearing behaviour of reinforced concrete members allows such varied interpretations and complex discussions as the shear behaviour. Especially the three-dimensional problem of the punching shear failure of reinforced concrete members is internationally discussed. Nevertheless up to now, there is no unified design approach or even an overall accepted design model. Especially for l...