Sentence examples for four strengthening from inspiring English sources

The abbreviations of the wrapping scheme, such as SRRR, refer to four strengthening layers with the spiral (S) and reverse spiral (R) wrapping directions.

The four strengthening configurations include only horizontal straps along the height, horizontal straps and corner angles along the height, horizontal straps and corner angles only in the lower part and, finally, combination of horizontal straps and corner angles in the lower part with bidiagonal (X shaped) configuration in the rest of the web.

Four strengthened beams had no end wraps or anchorages.

The strengthened reinforced concrete columns included two series; the first series contained four strengthened columns with steel angles and strips, while the second one contained two columns strengthened by steel-casing.

To validate this model, a series of fatigue tests were performed on five steel beams, including one reference beam and four strengthened beams.

Three strengthening systems, from two manufacturers (Sika® and STO®), were used to prepare the specimens.

The paper investigates two strengthening techniques for timber floors in historical masonry buildings.

The significant increase in hardness and yield stress after ECAP was discussed by two strengthening mechanisms.

Three strengthening mechanisms have been analyzed: (i) boundary strengthening, (ii) dislocation strengthening and (iii) solid solution hardening.

The research has evaluated two strengthening schemes: adhesive-bonded passive plates and adhesive-bonded prestressed or active plates.

Two strengthening fiber laminates were used: Glass fiber for the two lower tension reinforcing steel ratios and Carbon fiber for the higher tension reinforcing steel ratio.