Temporary Shoring for Window Renovation

[ForceBal]

A contractor is asking me for a shoring drawing for installation of a steel lintel. The masonry opening is 8' with 8'' bearing on each side. The installation is happening only from the inside (it's in an apartment building). Is there a handbook for bracing and shoring techniques? How can I brace the opening without getting in the way of the install? I've read some of the other posts in this forum and it seems like through bolting two C channels to the CMU above the opening is a good technique (repairing the holes afterwards) but in this case its seems like getting the channel on the outside would be difficult if not impossible. Thanks for any help or references you can provide.

 

[TonyD71502]

Can you post a sketch or picture? I do scaffold and shoring layouts all day long.

 

[concretemasonry]

Start with describing the construction of the existing masonry wall - materials, wythes, cavities (if there are there are some) and wall thickness). Bearing length may be important, but must meet the code minimums for lintels. You may also have to deal with vertical steel reinforcement in the existing wall.

Dick

Engineer and international traveler interested in construction techniques, problems and proper design.

 

[ForceBal]

Thanks for the reply. I'll see about a sketch soon. The construction is a single wythe of 8" CMU backup with 4'' brick veneer. There are actually two lintels: one for the CMU and one on the veneer. I think the solution I have found is to use evenly spaced cantilevered supports with cross bracing that is bolted into the floor. An individual brace looks like a box with an X on the inside. The top edge of the box is longer, the cantilevered beam that rests under the spandrels and extends into the brick veneer. They would be spaced every two feet for a span of ten feet. The new issue is trying to make it out of wood and steel to reduce cost. Is there any reference that gives good guidance on wood to steel connections?

 

[dik]

How did the contractor propose to do the work when he bid for the job? Can you use a loose lintel from the inside only? What loads?

Dik

 

[EngineeringEric]

Are needle beams an option?