| 摘要 |
A STEEL MEMBER (10,40, 70, 100) FOR USE IN SUPPORTING STRUCTURES AND HAVING REDUCED HEAT TRANSFER CHARACTERISTICS AS COMPARED WITH SOLID WEB STUDS, AND HAVING A WEB (12, 42,72, 102) DEFINING SIDE EDGES AND AN AXIS,A FLANGE (14,44,74,104) ON AT LEAST ONE SIDE EDGE, OPENINGS (18,46,76,112) THROUGH SAID WEB (12,42,72,102) AT SPACED INTERVALS THEREALONG, OF PREDETERMINED SIZE AND PROFILE, AT LEAST A SIDE PORTION OF SAID WEB (12,42,72,102) REMOVED FROM SAID OPENING (18,46,76,112) REMAINING ATTACHED INTEGRALLY TO SAID WEB (12,42,72,102),BY BEND LINES BEING FORMED ALONG AXES PARALLEL TO SAID WEB AXIS.ALSO DISCLOSED IS A COMPOSITE MEMBER (130) MADE UP OF TWO SUCH MEMBERS (132) JOINED TOGETHER.ALSO DISCLOSED IS A METHOD OF MAKING SUCH A MEMBER (10,40,70,100,130,132).(FIG 12) |
