Truss arrangement

• US 4,926,593 A
• Filed: 11/28/1988
• Issued: 05/22/1990
• Est. Priority Date: 12/27/1984
• Status: Expired due to Term

• Current Assignee: Brand Services LLC (Brand Industrial Services, Inc.)
• Original Assignee: Aluma Systems Incorporated (Brand Industrial Services, Inc.)
• Inventors: Johnston, Ronald J.
• Primary Examiner(s): Chilcot, Jr., Richard E.
• Assistant Examiner(s): Johnson, Jerrold D.
• Application Number:
  US07/277,006
• Time in Patent Office: 540 Days
• Field of Search: 52/126.4, 52/126.5, 52/126.7, 52/637, 52/641, 52/646, 52/650, 52/693, 52/731, 52/732
• US Class Current: 52/126.4
• CPC Class Codes: E04G 11/48 Supporting structures for shutterings or frames for floors or roofs struts E04G25/00

Abstract

A structural member for use in concrete forming structures and the like is disclosed. The member comprises a pair of spaced parallel tubular members interconnected by means of opposed webs. The combination defines an enclosure extending the length of the tubular members. Each of the webs attaches to a side of the tubular member opposite the enclosure. The outer surface of each web includes opposed flanges, which in combination with the web, define an open bolt slot that extends the length of the structural member. This structural member is particularly useful as an upright in concrete shoring.

Claims

1. A structural member for use in a concrete forming structure comprising a pair of tubular members disposed in parallel relation with each tubular member integral with opposed webs which in combination with said tubular members define an enclosure extending the length of said tubular members, each web to a side opposite said enclosure including opposed flanges which in combination with the particular web define an open bolt slot extending in the length of said tubular members.

2. A structural member as claimed in claim 1 wherein the member is of an extruded aluminum alloy.

3. A structural member as claimed in claim 2 wherein each tubular member is generally circular in cross section.

4. A structural member as claimed in claim 3 wherein said webs are of a width slightly greater than the width of the bolt slot.

5. A structural member as claimed in claim 4 wherein each tubular member includes two opposed outwardly extending thickened portions terminating in a generally planar face which is generally coplanar with the outer faces of one of said bolt slots and a corresponding thickened portion of the other tubular member.

6. A structural member as claimed in claim 5 wherein each tubular member includes a tubular height adjustment means at least partially received therein with the tubular height adjustment means extending from opposite ends of said structural member, each tubular height adjustment means being selectively movable to a position within a tubular member such that a portion of the tubular height adjustment means overlap.