You do not say where you are, but we have hot weather in Oklahoma, 70 degress is not that bad but for quality, the concrete should be in place within 45 min. of the introduction of water in mix.
Similar concrete finishing problems happen here during hot pours. Bad things happen to structural...
Think of the shear walls as vector components of the required reaction. They always exist as reactions and always in balance with applied loads.
All loads parallel to the single wall form a moment with their reaction, which has to be resisted by a force couple in the double walls.
I have kept...
