There must be a resting structure between the hanging beam and the cantilever of the cantilever system. Usually, the local structure of the cantilever end and the hanging beam end is called a corbel, also known as a corbel. In ancient architecture, the scientific name of corbels is "supporting brackets".

The function of the corbels is to connect the cantilever beam and the hanging beam and transmit the load from the hanging beam. Here, due to the overlapping of the beams, a force transmission support must be installed in the middle to transmit larger vertical and horizontal reaction forces. Therefore, the height of the corbels has been reduced to less than half of the beam height, but it still has to transmit larger forces. vertical and horizontal reaction forces, making it a weak point in the superstructure.

Extended information

Set the elevation observation point and centerline mark. The elevation observation point should be set based on the corbel support surface and is easy to observe. Columns without corbels should be based on the column. The center of the last mounting hole where the top end is connected to the truss is the reference.

The centerline mark should comply with the corresponding regulations. When installing multi-section columns, it is advisable to assemble the columns and then hoist them as a whole. Steel columns should be adjusted after they are hoisted, such as deviations caused by temperature differences, side sunlight, etc. The allowable deviations after the columns are installed should comply with the corresponding regulations. After the roof trusses and crane beams are installed, overall adjustments are made and then fixed connections are made.

For columns with a large slenderness ratio, temporary fixing measures should be added after hoisting. Column supports should be installed after the columns are aligned.

Baidu Encyclopedia-Corbel (engineering term)