Steel Beam Supporting Cavity Wall Detail

Cavity walls are common in houses built from the 1920 s onwards typically when making an opening in a cavity wall two steel beams are used with separate steel beams supporting the inner and outer leaves.

Steel beam supporting cavity wall detail.

Table 4 size of steel beam supporting floor. Ends of beams can be laterally restrained using one of the following methods. 2 end of beam fixed to a masonry wall. M16 bolts fix the beam back to the side plates.

Essentially your large steel prevents the natural gravitational passage of water. In these cases they were packed with oak timbers struts to spread the floor loads correctly across the rsj steel beams. 1 end of beam built into masonry wall. Openings in cavity walls.

Figure 1 effective areas supported by steel beams. T able of c ontents c hapter 1 m asonry c avity w all d etails s hear c onnected c hapter 2 m asonry c avity w all d etails a djustable t ies c hapter 3 b rick v eneered s teed s tud b ackup w all d etails s hear c onnected c hapter 4 b rick v eneered s teel s tud b ackup w all d etails s lotted t ies c hapter 5 s ingle w ythe l oadbearing m asonry w all d etails c hapter 6 m. This is important because the bricks need to be tied back cross bonded into the inner leaf of gable end cavity wall. Above the rsj steel beam we dry pack the small gaps up to the first floor support with a semi dry strong 2 1 cement mixture this is compacted into the gaps between the beam and the first floors.

The spacers are at a minimum of 750crs along the length of the beam including close to the support. Cavity walls consist of 2 skins of masonry separated by a gap cavity. Some of the beams were supporting existing timber floors. The minimum end bearing length at supports to be 100mm.

Note that the wind post is formed from remains of the existing load bearing wall. Supporting masonry to comply with eurocode 6 or bs 5628. The designer is to ensure that the proposed detail adequately ensures that the end of the beam is laterally restrained. The steel beam is hung from the rolled steel angle rsa with a side plate welded onto it.

If any area shown as void contains a staircase add 2m 2 to the effective area supported by any beam which supports partially or fully that staircase. 3 end of beam fixed to a column or a beam. 6 if steel beam to steel beam connections are required use appendix 6 5 c. Walls that face driven rain are particularly vulnerable to water penetration.

If you install one large steel that picks up a double skin wall you should also install a cavity tray above it. Plan area of bonded masonry supporting steel beam to be greater than or equal to 0 1m.