Page 214 - Water Standards
P. 214

Figure 4   1   10-2

                   been put on the track.
                 4) The girder web  s vertical deflection b≤H/ 500 (as shown in Figure 4   1   10-4).
                   It shall be measured at the long ribbed slab.
                 5) The bridge frame diagonal difference | D 1 D 2 | ≤5mm ( as shown in Figure
                                              -
                   4   1   10-1).
                 6) The waviness of the girder main webplate, which is checked by a 1m leveling rul⁃
                   er, shall be no larger than 0   7δ within a distance of 1/ 3H from the upper cover
                   plate and no larger than 1   0δ at other locations (as shown in Figure 4   1   10-5).

















                        Figure 4   1   10-3       Figure 4   1   10-4

                 7) The degree of verticality of the support leg in the span direction h 1 ≤H/ 2000
                   (Figure 4   1   10-6) and the direction of tilt shall be symmetrical with each other.
                   If other methods can be used to ensure the headstock gear span, this item can be
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