Abstract: A curtain wall construction system comprises a plurality of interconnected curtain wall supporting beams; one or more elongated and compressible sealing elements attached to at least one of the curtain wall supporting beams, wherein the curtain wall construction system is configured with a dedicated interspace within which a corresponding set of one or more rigid and impermeable panels is introducible. The curtain wall construction system further comprising a linearly displaceable clamping element that is clampable against the introduced set of panels to form a clamping arrangement which provides sealing protection in conjunction with the one or more sealing elements.

Abstract: A reinforced beam system comprises at least one pair of angularly spaced, corner-connected beams configured with two oppositely oriented triangular closed head portions, and a web interposed between head portions; a plurality of reinforcement elements forcibly contacting an interior wall of the corresponding head portion; and for each pair, at least one angled connector. A first leg of the angled connector abuts the flange of a second head portion of the first beam and is connected to a first reinforcement element inserted within the second head portion of the first beam, and a second leg of the angled connector abuts the flange of a first head portion of the second beam and is connected to a second reinforcement element inserted within both the first head portion of the second beam and a first head portion of the first beam. A beam system in one embodiment is devoid of reinforcement elements.

Abstract: A reinforced beam system comprises at least one pair of angularly spaced, corner-connected beams configured with two oppositely oriented triangular closed head portions, and a web interposed between head portions; a plurality of reinforcement elements forcibly contacting an interior wall of the corresponding head portion; and for each pair, at least one angled connector. A first leg of the angled connector abuts the flange of a second head portion of the first beam and is connected to a first reinforcement element inserted within the second head portion of the first beam, and a second leg of the angled connector abuts the flange of a first head portion of the second beam and is connected to a second reinforcement element inserted within both the first head portion of the second beam and a first head portion of the first beam. A beam system in one embodiment is devoid of reinforcement elements.

Abstract: A modular reinforced structural beam and connecting member system that includes at least one composite beam having two oppositely oriented triangular closed head portions and a transversally extending web interposed between said two closed head portions, each of said beams consisting of two separate members arranged such that corresponding head portions of said two members are nested one within the other and adjacent elements of the two members are in mutual stabilizing contact. A plurality of connecting members are connected to, and are in force transmitting contact with, one of the composite beams and another structural element.

Abstract: A fabricated structural beam includes at least one longitudinally folded member having a web portion and a head portion. In different embodiments, a plurality of folded members may be interleaved with one another to provide configurations of varying load carrying capabilities. In all cases, the folded head portion is made rigid by forming it into a tube that is closed on all sides.