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          "EI_kNm2": 226600.0,
          "count": 60
        },
        {
          "name": "HGB(135)",
          "Iy_mm4": 1100000000.0,
          "A_mm2": 12000.0,
          "EI_kNm2": 226600.0,
          "count": 57
        }
      ],
      "representative_filter": "仅 H/B 箱型截面（排除 SB 次横隔）"
    },
    "EI_cap_ZX1": {
      "n_elements": 11,
      "n_elements_representative": 11,
      "n_unique_sections": 2,
      "E_kN_mm2": 206.0,
      "I_repr_mm4": 140907280721.68286,
      "EI_repr_kNm2": 29026899.82866667,
      "EI_min_kNm2": 29026899.82866667,
      "EI_max_kNm2": 29026899.82866667,
      "EI_p10_kNm2": 29026899.82866667,
      "EI_p90_kNm2": 29026899.82866667,
      "J_repr_mm4": 102043763458.5175,
      "GJ_repr_kNm2": 8085005.874021002,
      "A_repr_mm2": 386535.9223300971,
      "x_range_m": [
        0.58,
        0.621
      ],
      "sections": [
        {
          "name": "边横梁-组合截面(61)",
          "Iy_mm4": 140907280721.68286,
          "A_mm2": 386535.9223300971,
          "EI_kNm2": 29026899.82866667,
          "count": 5
        },
        {
          "name": "边横梁-组合截面(44)",
          "Iy_mm4": 140907280721.68286,
          "A_mm2": 386535.9223300971,
          "EI_kNm2": 29026899.82866667,
          "count": 6
        }
      ],
      "representative_filter": "全部"
    },
    "EI_cap_ZX2": {
      "n_elements": 12,
      "n_elements_representative": 12,
      "n_unique_sections": 2,
      "E_kN_mm2": 206.0,
      "I_repr_mm4": 903008288416.6666,
      "EI_repr_kNm2": 186019707.41383332,
      "EI_min_kNm2": 186019707.41383332,
      "EI_max_kNm2": 186019707.41383332,
      "EI_p10_kNm2": 186019707.41383332,
      "EI_p90_kNm2": 186019707.41383332,
      "J_repr_mm4": 1987322477081.2483,
      "GJ_repr_kNm2": 157457088.56874508,
      "A_repr_mm2": 726792.5,
      "x_range_m": [
        34.15,
        42.3005
      ],
      "sections": [
        {
          "name": "中横梁(99)",
          "Iy_mm4": 903008288416.6666,
          "A_mm2": 726792.5,
          "EI_kNm2": 186019707.41383332,
          "count": 6
        },
        {
          "name": "中横梁(80)",
          "Iy_mm4": 903008288416.6666,
          "A_mm2": 726792.5,
          "EI_kNm2": 186019707.41383332,
          "count": 6
        }
      ],
      "representative_filter": "全部"
    },
    "EI_cap_ZX3": {
      "n_elements": 12,
      "n_elements_representative": 12,
      "n_unique_sections": 2,
      "E_kN_mm2": 206.0,
      "I_repr_mm4": 903008288416.6666,
      "EI_repr_kNm2": 186019707.41383332,
      "EI_min_kNm2": 186019707.41383332,
      "EI_max_kNm2": 186019707.41383332,
      "EI_p10_kNm2": 186019707.41383332,
      "EI_p90_kNm2": 186019707.41383332,
      "J_repr_mm4": 1987322477081.2483,
      "GJ_repr_kNm2": 157457088.56874508,
      "A_repr_mm2": 726792.5,
      "x_range_m": [
        108.672,
        117.888
      ],
      "sections": [
        {
          "name": "中横梁(134)",
          "Iy_mm4": 903008288416.6666,
          "A_mm2": 726792.5,
          "EI_kNm2": 186019707.41383332,
          "count": 6
        },
        {
          "name": "中横梁(116)",
          "Iy_mm4": 903008288416.6666,
          "A_mm2": 726792.5,
          "EI_kNm2": 186019707.41383332,
          "count": 6
        }
      ],
      "representative_filter": "全部"
    },
    "EI_cap_ZX4": {
      "n_elements": 12,
      "n_elements_representative": 12,
      "n_unique_sections": 2,
      "E_kN_mm2": 206.0,
      "I_repr_mm4": 140907280721.68286,
      "EI_repr_kNm2": 29026899.82866667,
      "EI_min_kNm2": 29026899.82866667,
      "EI_max_kNm2": 29026899.82866667,
      "EI_p10_kNm2": 29026899.82866667,
      "EI_p90_kNm2": 29026899.82866667,
      "J_repr_mm4": 102043763458.5175,
      "GJ_repr_kNm2": 8085005.874021002,
      "A_repr_mm2": 386535.9223300971,
      "x_range_m": [
        149.399,
        149.399
      ],
      "sections": [
        {
          "name": "边横梁-组合截面(141)",
          "Iy_mm4": 140907280721.68286,
          "A_mm2": 386535.9223300971,
          "EI_kNm2": 29026899.82866667,
          "count": 6
        },
        {
          "name": "边横梁-组合截面(123)",
          "Iy_mm4": 140907280721.68286,
          "A_mm2": 386535.9223300971,
          "EI_kNm2": 29026899.82866667,
          "count": 6
        }
      ],
      "representative_filter": "全部"
    },
    "GJ_all": {
      "n_elements": 1578,
      "E_kN_mm2": 206.0,
      "J_repr_mm4": 7807260.0,
      "G_kN_mm2": 79.23076923076923,
      "GJ_repr_kNm2": 618.5752153846153,
      "note": "所有主梁的典型 GJ（横向扭转刚度）"
    },
    "K_eq": {
      "value_kN_per_mm": 11250.0,
      "value_kN_per_m": 11250000.0,
      "K_min_kN_per_mm": 5000.0,
      "K_max_kN_per_mm": 20000.0,
      "K_mean_kN_per_mm": 11666.666666666666,
      "K_median_kN_per_mm": 11250.0,
      "n_springs": 12,
      "per_spring_kN_per_mm": [
        5000.0,
        5000.0,
        5000.0,
        17500.0,
        20000.0,
        17500.0,
        17500.0,
        20000.0,
        17500.0,
        5000.0,
        5000.0,
        5000.0
      ],
      "note": "MCT *ELASTICLINK GEN 真实支座刚度 · 共 12 根弹簧 · 范围 5000~20000 kN/mm（ZX1/ZX4 边墩=5000，ZX2/ZX3 中墩=17500/20000）"
    },
    "load_selfweight": {
      "total_kN": 45806.45983181177,
      "raw_kN_without_factor": 31927.552681265606,
      "sw_factor": 1.4347,
      "by_material": {
        "STEEL": 32336.192802543144,
        "SRC": 936.1726677995308,
        "CONC": 12534.0943614691
      },
      "note": "主结构自重 · Σ mat.dens_w × A_mass × span_scale × L × 1.4347（MCT 自重方向系数）"
    },
    "load_pavement": {
      "total_kN": 20061.315203009108,
      "note": "MCT 中护栏 + 边护栏 + 铺装 beamload 总和"
    },
    "load_counterweight": {
      "total_kN": 3725.926947207387,
      "note": "MCT 压重 beamload 总和（ZX1 端 + ZX4 端）"
    }
  },
  "meta": {
    "source": "lyl.mct",
    "note": "12 物理族的 FEM 基准物理值 · 和 90_sensitivity.py 的族分类规则对齐"
  }
}