| 摘要 |
<p>The Z-beam body (6) has a steel profile (8) firmly welded to it near its lower flange (7) and on its side turned away from the lower flange. The steel profile is built into the building outer wall. Its area is so matched that it provides adequate compensation for the redn. of the Z-profile (1) momentary capacity which weakening of the lower flange exposed to the fire involves.</p> |
