REINFORCED CONCRETE, UNSTRESSED (BUILDING MATERIALS); MODELLSTATIK + EXPERIMENTELLE BAUSTATIK (BAUINGENIEURWESEN); PRESTRESSED CONCRETE (BUILDING MATERIALS); BALKEN + TRÄGER (BAUSTATIK); BEWEHRUNG IN BETONKONSTRUKTIONEN (BAUKONSTRUKTIONSTEILE); SPANNBETON (BAUSTOFFE); REINFORCEMENT OF CONCRETE STRUCTURES (STRUCTURAL ELEMENTS); BEAMS (STRUCTURAL ANALYSIS); SHEAR STRENGTH (ELASTOMECHANICS); MODEL ANALYSIS OF STRUCTURES + EXPERIMENTAL STRUCTURAL ANALYSIS (CIVIL ENGINEERING); SCHERFESTIGKEIT + SCHUBFESTIGKEIT (ELASTOMECHANIK); STAHLBETON, SCHLAFF BEWEHRT (BAUSTOFFE)