Composite structure

Details Composite structure Composite structure

1986-02-18

1987-04-28

Friedman, Carl D.

Static structures (e.g., buildings)

Cast in situ concrete barrier with laterally projecting...

Means suspending backer or stiffener from sustainer

52337, 52340, 52692, E04C 310

Patent

active

046603417

ABSTRACT:
An open web joist system and a composite concrete structure incorporating said open web joist system wherein the top chord comprises two spaced-apart angle bars held in spaced-apart relationship by bar stock of an open web member and a closure member for blocking the downward flow of concrete between the vertical legs of the top chord. Concrete is thus enabled to flow into the groove formed by the two angle bars at the top chord and serve as a keyway to prevent longitudinal movement of the concrete with respect to the joist members. Bolts are used to suspend spanner bars for holding concrete forms in place, and these bolts pass downwardly through an opening in the closure member to the spanner bars.

REFERENCES:
patent: 2864471 (1958-12-01), Williams
patent: 3527007 (1970-09-01), McManus
patent: 3979868 (1976-09-01), Butts et al.
patent: 4454695 (1984-06-01), Person
patent: 4549381 (1985-10-01), Holtz

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