Technical Advances of Temporary Facilities for the Failure Prevention of Large-Span Cantilever Casting Construction of Mountainous Concrete Box-Type Arch Bridges

Figure 12

Comparisons of the prestressing patterns and field test of the upper edge tensile stresses. The abscissas from (a) to (f) denoting the numbering of the divided beam cross-sectional areas can refer to Figure 10(a). (a) Upper edge stress distribution of the end cross sections of the no. 10 and 11 segments (case 1). (b) Upper edge stress distribution of the end cross sections of the no. 12 and 13 segments (case 2). (c) Lower edge stress distribution of the end cross sections of the no. 12 and 13 segments (case 2). (d) Upper edge stress distribution of the end cross sections of the no. 14 and 15 segments (case 3). (e) Lower edge stress distribution of the end cross-sections of the no. 14 and 15 segments (case 3). (f) Upper edge stress distribution of the end cross sections of the no. 16 and 17 segments (case 4). (g) Maximum upper edge tensile stresses (east field data). (h) Maximum upper edge tensile stresses (west field data).

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