Poles are marked with () on the drawings, and should be added in the input software. The vertical pole is the lap joint of structural reinforcement and load-bearing negative reinforcement, and the length is150 mm. The vertical pole is used to fix stirrups, and its diameter is smaller than that of load-bearing reinforcement. When there are negative bending moment steel bars on the upper part of the beam support, the tie bars can only be arranged in the mid-span part of the beam, and both ends are overlapped or welded with the negative bending moment steel bars of the support. Lap needs to meet the requirements of lap length and be knotted.

The vertical pole is a non-stressed steel bar needed by the structure, which is basically stress-free, and plays a structural role together with the stressed steel bar to form a steel skeleton. Erecting vertical steel bars has the function of fixing stirrups, so that the steel bars in the beam form a complete steel skeleton structure. Because the support is not stressed, the diameter of the support will be much smaller than the diameter of the stressed steel bar.

Extended data:

Because the erection of the vertical pole is not stressed in the design, as long as the span of the beam meets the minimum diameter of the vertical pole. The negative bending moment reinforcement is arranged on the upper part of the beam, and the negative bending moment reinforcement and the vertical pole need to be connected by overlapping. It can be found in the flat atlas16g101-kloc-0/that the overlapping length of vertical bracing and negative bracing of the bearing is150 mm.

For ordinary simply supported reinforced concrete beams, because the upper part is compressed under load, there is no need to configure tensile reinforcement on the upper part of the beam, but for the need of erecting stirrups during construction, two long reinforcement bars are generally set on the upper part of the beam, which is indicated as 2 Ф10 in the figure.

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