How to Support Concrete Beam with an I-Beam?
How to Support Concrete Beam with an I-Beam?
(OP)
Hello,
I have to design an extention for an existing structure. There are 3 columns with 2m centre-to-centre span. These coulmns support 200 x 400 beam, which supports another 200 x 300 secondary beam (supporting slabs). Contractor wants to knock down the middle column and keep the beams as they are, as the column stands right in the middle of the proposed master bedroom.
Can I use an I-beam (or a more suitable section), both ends connected to other beams and use steel plates and bolts to support existing beams??
Please check the attached sketch.
Many thanks in advance :)
I have to design an extention for an existing structure. There are 3 columns with 2m centre-to-centre span. These coulmns support 200 x 400 beam, which supports another 200 x 300 secondary beam (supporting slabs). Contractor wants to knock down the middle column and keep the beams as they are, as the column stands right in the middle of the proposed master bedroom.
Can I use an I-beam (or a more suitable section), both ends connected to other beams and use steel plates and bolts to support existing beams??
Please check the attached sketch.
Many thanks in advance :)






RE: How to Support Concrete Beam with an I-Beam?
Mike McCann
MMC Engineering
RE: How to Support Concrete Beam with an I-Beam?
What do you know about the existing reinforcing, size, grade, and concrete strength?
Mike McCann
MMC Engineering
RE: How to Support Concrete Beam with an I-Beam?
You're right. I can't add the I-beam below for head clearance reason. My sketch just illustrates my porposal.
Edge beams having heavy reinforcement, 6-T16 at the bottom and 3-T16 (Fy 460 N/mm^2) at top with 200 width and 400 depth for 4m (13ft) span. Concrete strength (Fck, cyl) from the test is 32 N/mm^2.
Can you please guide me (with a sketch,if possible)on widening the existing beam, I believe this will require close monitoring during site work?
RE: How to Support Concrete Beam with an I-Beam?
RE: How to Support Concrete Beam with an I-Beam?
BA
RE: How to Support Concrete Beam with an I-Beam?
RE: How to Support Concrete Beam with an I-Beam?
BA
RE: How to Support Concrete Beam with an I-Beam?
Make sure that your edge beam checks include verifying that the existing bottom re-bars are adequately long and continuous at the new location of maximum positive moment.
Also, don't forget to check that the existing columns can handle the added load.
tg
RE: How to Support Concrete Beam with an I-Beam?