CPlater1 Posted December 7, 2016 Share Posted December 7, 2016 For my sins I have volunteered to do lighting for my village am-dram group, with my first show with them running at the end of January. The venue is a church hall, and currently has a bar installed foh, but none on the stage. I am looking at getting 2 bars installed, one directly behind the proscenium, and one about halfway upstage, behind a gable. http://I.imgur.com/shqVbmP.jpg The options I can see are either using wall brackets T33300, or finding a way of suspending from the wooden beams. I would be looking at installing 5m bars, the expected loading on these bars being not very high, and likely that they will be removed (at least in part) when we're not using the venue. There is an issue with mounting from the overhead wooden beams, as they are not vertical, rather they are on a diagonal. To mount the T33300 brackets, I would be looking at installing shallow uni-strut to fix to solid wood. There is no room on the stage for stands. Many thanks in advance Chris Link to comment Share on other sites More sharing options...
GridGirl Posted December 8, 2016 Share Posted December 8, 2016 You really need a structural engineer to tell you what you can hang from where... Link to comment Share on other sites More sharing options...
timsabre Posted December 8, 2016 Share Posted December 8, 2016 How's the foh bar been done? Or you could copy how the curtain track has been fixed. Anna is also right about ensuring that anything you do is structurally sound - copying what someone else has done doesn't mean you can just assume it's right. Link to comment Share on other sites More sharing options...
CPlater1 Posted December 8, 2016 Author Share Posted December 8, 2016 The current FOH bar is installed with keeclamps mainly, anchored to one of the gables, then supported up to the central beam. I'm not too sure about that option. Link to comment Share on other sites More sharing options...
timsabre Posted December 8, 2016 Share Posted December 8, 2016 Personally, and assuming you have checked out all the structural and insurance implications, I would use 3x ceiling saddle (T33700) and bar clamp (T30400) with M12 studding to suspend each bar off those large front-to-back beams which can be seen in your photo. Link to comment Share on other sites More sharing options...
CPlater1 Posted December 8, 2016 Author Share Posted December 8, 2016 The only issue with the front to back beams is that the 2 outer space are not vertical, they are diagonals so the bottom edge is parallel to the roof. Link to comment Share on other sites More sharing options...
Brian Posted December 8, 2016 Share Posted December 8, 2016 ...they are diagonals so the bottom edge is parallel to the roof. So bend the studding where it exits the saddle. Or something like this... ..and maybe forget the studding so the outer points are directly to the joists to give you maximum bar height. Link to comment Share on other sites More sharing options...
CPlater1 Posted December 8, 2016 Author Share Posted December 8, 2016 Or something like this... ..and maybe forget the studding so the outer points are directly to the joists to give you maximum bar height. I had forgotten that those existed! That may turn out to be the most cost-effective method too. Link to comment Share on other sites More sharing options...
Junior8 Posted December 9, 2016 Share Posted December 9, 2016 By the looks of those 5A skts someone's been there before! If its not to be permanent what about a floor stading simple scaff frame? Link to comment Share on other sites More sharing options...
ontoprigger Posted December 15, 2016 Share Posted December 15, 2016 Many of these older church hall set ups were done a fair while ago by people who didn't really understand all the implications or have to conform to today's higher standards, before you look at anything get a qualified structural engineer to have a look at whats there already and they will best advise what you need to do. In a temporary situation a free standing system is sometimes a more cost effective solution as long as you have the space. Link to comment Share on other sites More sharing options...
Dave m Posted December 16, 2016 Share Posted December 16, 2016 If it's on stage is there wing space to allow support from the floor? And a ladder type structure to avoid deflection on the horizontal? Link to comment Share on other sites More sharing options...
timsabre Posted December 16, 2016 Share Posted December 16, 2016 If it's on stage is there wing space to allow support from the floor? And a ladder type structure to avoid deflection on the horizontal? From the first post "there is no room on the stage for stands". And my extensive experience of dodgy church hall rigging would suggest that the roof is often stronger than the floor/stage... Link to comment Share on other sites More sharing options...
Dave m Posted December 16, 2016 Share Posted December 16, 2016 I realise the "no stands" but took it to mean no tripod type.-a scaff pole is a couple of inches and creative rigging might find room to build something Link to comment Share on other sites More sharing options...
timsabre Posted December 16, 2016 Share Posted December 16, 2016 ok I see what you mean. But to be "safe" you'd still need structural advice to check the floor could take the load. I'd go for fixing it to those roof beams.I remember seeing some great rigging like that on a bbc gig in a church, there were pillars and arches down each side and they'd run ladder beam behind the arches supported by single vertical poles ratchet strapped to the pillars. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.