Abstract: A method of constructing the approach and main spans of a cable stayed segmental bridge as the main span is constructed as a smooth continuation of the approach spans without the need for special equipment or different box girder deck sections. The approach spans are constructed each in succession from opposite sides of the main span after which the main span continues from opposite sides toward a midpoint, while the cable stays are installed. For a two-wide box girder bridge, delta frames interconnect side-by-side box girders at the anchor locations of the cable stays for thereby transferring the static and dynamic loads of the main span toward the center plane of support of the cable stays.

Abstract: Precast concrete hollow box girders of a two-wide cable stayed segmental bridge are provided as having inner side slabs of connected girder pairs acting to transfer loads of the box girder pairs to a central location thereof at which they are supported by cable stays.

Abstract: A cable stayed bridge construction having box edge beams to which the deck structure is joined between the top and bottom thereof, and to which the cable stays are anchored.

Abstract: A cable stayed bridge is constructed as having approach deck spans and at least one cable stayed deck bridge section assembled as a unit by employing the deck surfaces of the approach spans as in situ work surfaces for erecting equal deck lengths of the unit. A bridge pylon is supported on a floatable support and extends through an open gap provided in an approach span deck, and cable stays are extended from the pylon for supporting the deck lengths. The completed unit is moved away from the work surfaces and into alignment with a last of the approach spans, and is permanently anchored in place.

Abstract: A concrete deck truss bridge and method of constructing same employing precast compression and tension diagonals with the latter having oppositely extending feet at opposite ends so as to define therein surfaces for support of the intervening compression diagonals, and opposite sides of the feet defining anchor blocks for post-tension tendons. Construction proceeds from main span piers toward the mid-span and end span piers under balanced loading, in sequence.

Abstract: An anchorage for a support cable of a bridge construction includes an anchorage block for anchoring one end of the cable relative to a structural bridge component, the block including anchor heads and hollow tubes extending in registry with anchor head passages at one end of wall of the block and terminating at an opposite end wall of the anchorage block. The cable includes a tubular sheath seated against the anchorage block and extending through its bearing plate as well as through a bearing plate on the bride component. Cable strands are threaded through the sheath and through the hollow tubes as well as through the anchor head passages, and the cable strands are simultaneously stressed by means of hydraulic stressing jacks operating between the bearing plates.