Why the windowsill under the beam?
Should be the door and window openings plus beams, the length of the beam is generally the width of each hole plus 250 (for perforated brick and block wall, if the ordinary brick should be the width of each hole plus 200), the current national standard Atlas 03G322-1 gives the first, second, third and fourth load case of beam height and reinforcement, the design we can use the corresponding set of the beam, if necessary, can also be drawn according to their own requirements.
The beam is used to carry the load above the hole, and pass them to the wall, bearing the wall above the beam also bear the floor pressure.
Under the windowsill should be called "pressure top", the general width and wall width, length is greater than the window hole 400mm, that is, one side to the wall 200mm, mainly used to reinforce the window under the brick wall, fixed aluminum window nail nail in the windowsill Above the top of the concrete, so that aluminum windows are fixed above and below the concrete, the side of the window is only fixed on the brick wall.
