High and low cover beam calculation and reinforcement?

The following is the Zhongda consulting to bring you about the high and low cover beam calculation and reinforcement of the relevant content for reference.

Highway in the mountainous areas or in the interchange ramp, often encountered in the case of large-span and small-span connection. So that the two sides of the beam height is not the same, resulting in the height of the cover beam has a difference straight. Once in a project, since encountered a difference of 2.2 meters. Such a heterogeneous cover beam in the project how to realize the simple calculation.

Often, many people use the heavier side of the load control, and then in the high side of the same steel with high skeleton, that is, with high and low skeleton. Simply think that if the low side of the steel is safe, the high side of the steel should be safe, because the force arm increased. Today I heard about another way of reinforcement. I have a relatively deeper understanding of this. The reinforcement method for the high and low skeleton is actually treating the two sides of the cover beam separately. But is this how the structure is actually loaded? In other words, if the structure is loaded as a whole, the skeleton bars on the low side are often near the neutral axis, which is not helpful to the structure. In this case, only the high side has reinforcement. The calculation mode of the structure should be based on the imitation T-type calculation.

Another way to do this is to place the low side reinforcement along the full width. The upper part is separated from the structure by a false joint. In this way, it seems to be more favorable to the force. At the same time, the extra part can also balance some of the unbalanced bending distance caused by the unbalanced load of the upper part. It seems better.

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