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@civilperson: the plate was attach to the one side face of the girder. yeah, it is torsion inducing. but it was design to withstand torsion. the crack is parallel to the girder... the cracks (one at the top surface of the beam and one at the bottom/soffit of the beam) are 3 times the plates...

no, it was not me. thanks for the reply anyways. do u have any detail re this RHA for RMC?

Any thoughts? Just today I found a crack line located at the mid-span of my 6-m (500mm x 700mm) RC girder. The girder was designed to be connected with a wide flange steel beam at the mid-point of it. The connection used was a 10mm thick plate anchor bolted to the RC girder with 6pcs M20...

Thank you very much... engr. rejido

How do you compute the allowable construction load? Lets say, I am casting my precast wall panel on top of the UGF floor Slab.... The precast wall panel will give a 100 psf load to the slab. Any thoughts? engr. rejido

I think we don't have to worry on shrinkage crack 'cause we can just provide shrinkage reinforcements... What do you think? I think this will already be enough to prevent the topping from craking caused by shrinkage. engr. rejido

In our building, it's 150mm seismic gap.

Can anybody here help me on this topic? I need a very reliable source of any research paper, theses or journals regarding this type of addmix to the concrete. What is the ideal temperature of firing, duration and storage to avoid contamination. And also, its optimum replacement level to ordinary...