Construction method for cooperative tensioning of a prestressed steel beam and a stay cable of a cover beam
A technology of prestressed steel beams and construction methods, which is applied in the direction of cable-stayed bridges, bridges, bridge parts, etc., to achieve the effects of reasonable design, guaranteed verticality of bridge towers, and simple steps
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[0071] like figure 1 and Figure 5 Shown, the present invention comprises the following steps:
[0072] Step 1. Construction and marking of prestressed steel tendons in the cap beam:
[0073] Step 101, performing cover beam construction on the pier column 1 to form a cover beam 2; wherein, a spherical joint 3 is set at the center of the cover beam 2;
[0074] Step 102, thread the prestressed steel tendons in the cover beam 2, and mark the prestressed steel tendons as the first row of prestressed steel tendons, ..., i-th row of prestressed steel tendons, ... , the first row of prestressed steel tendons; wherein, i and I are both positive integers, and 1≤i≤I, the first row of prestressed steel tendons is close to the top surface of the cover beam 2, I=4;
[0075] Step 103, mark the i-th row of prestressed steel tendons sequentially according to the width direction of the cover beam 2 as the first prestressed steel tendon in the i-th row, ..., the j-th prestressed steel tendon...
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