Slope deflection method is a special way of figuring out how much a building will bend or twist when it is under stress. Imagine you have a pencil standing up straight on a piece of paper, and you push it down gently on one end. The pencil will bend a little bit, but you can use math to figure out exactly how much it will bend.
Now, imagine the pencil is a big, tall building. When there is a lot of weight or wind pushing against the building, it's going to bend or twist a lot more than a pencil. But, just like with the pencil, you can use math to figure out exactly how much it will bend or twist.
The slope deflection method is a way of using math to figure out how much a building will bend or twist based on three things: the strength of the building's materials, the position of its supports, and the amount of stress being applied. This method involves calculating the slope or angle of the building's deflection, which means how much it leans or twists from its original position.
In even simpler terms, the slope deflection method is a way of using math to predict how much a building will lean or twist under different conditions, so architects and engineers can design buildings that are strong and safe.