{ "schema_version": "1.0.0", "checked_on": "2026-09-26", "units": "m", "physical_coordinates": { "x": "桥梁纵向", "y": "桥梁横向", "z": "向上" }, "render_mapping": "V(x,y,z) = THREE.Vector3(x,z,-y)", "evidence_type": "source-backed-typology-with-original-teaching-dimensions", "scope": "十类教学细部与设备；原六类尺寸如下，新四类在补充尺寸合同中。构造型式据原始资料核对，未公开尺寸采用教学假定；工作演示不等于承载力或施工阶段计算。", "source_ledger": "research/sources.json", "models": { "prestress": { "title": "后张法群锚穿心千斤顶", "type": "中空液压千斤顶、工作锚、工具锚", "axis_z": 1.05, "concrete_end_x": -0.9, "concrete_size": [ 1.75, 1.44, 1.9 ], "anchor_plate_x": [ -0.9, -0.77 ], "working_anchor_x": [ -0.77, -0.62 ], "reaction_nose_x": [ -0.62, -0.26 ], "hydraulic_housing_x": [ -0.26, 0.86 ], "jack_outer_radius": 0.385, "jack_hollow_passage_radius": 0.154, "tool_anchor_x": [ 1.12, 1.26 ], "strand_count": 7, "strand_center_xy_pattern": "1+6环形束，周边钢绞线轴距中心0.069 m", "strand_display_outer_radius": 0.0091, "strand_initial_x": [ -2.8, 1.85 ], "display_motion": { "piston_peak_stroke": 0.28, "peak_exterior_extension": 0.28, "retained_extension": 0.26, "wedge_seating": 0.036, "classification": "mechanism_demonstration_amplified_not_measured_results" }, "stages": [ [ 0, 0.12, "准备" ], [ 0.12, 0.58, "张拉" ], [ 0.58, 0.74, "锁定" ], [ 0.74, 1, "卸荷" ] ], "assembly_contact_checks": [ "concrete_end = anchor_plate_back", "anchor_plate_front = working_anchor_back", "working_anchor_front = reaction_nose_back", "reaction_nose_front = hydraulic_housing_back" ], "simplifications": [ "省略限位板可调结构、密封槽、缸内油路及抗爆防护", "钢绞线整体仿射伸长仅用于说明工具锚牵引；不等于沿程应变计算", "压力表刻度和油压数值不作为施工参数" ] }, "saddle": { "title": "塔顶钢制主索鞍", "type": "弧形承缆槽、侧壁、加劲肋、底板", "tower_cap_size": [ 2.9, 2.3, 0.7 ], "saddle_base_size": [ 2.72, 1.68, 0.16 ], "main_cable_x": [ -3.15, 3.15 ], "cable_centerline_z": "1.43 - 0.092*x*x", "groove_x": [ -1.34, 1.34 ], "groove_inner_radius": 0.258, "groove_outer_radius": 0.3, "groove_shell_thickness": 0.042, "main_cable_visual_envelope_radius": 0.258, "stiffener_x": [ -1.16, -0.58, 0, 0.58, 1.16 ], "stiffener_thickness": 0.14, "display_motion": { "cable_translation": 0, "saddle_translation": 0, "mode": "分段受力箭头与部件高亮" }, "assembly_contact_checks": [ "main cable lower envelope touches inner groove at all sampled x", "stiffener curved top touches groove outer underside" ], "simplifications": [ "外层线纹表达集束主缆，不逐根复原全部钢丝", "没有模拟施工阶段索鞍预偏、顶推、主缆摩擦或滑移", "索槽在每个桥向截面以圆弧表达，为原理模型" ] }, "clamp": { "title": "两道环向槽的骑跨式索夹与吊索", "type": "左右对合半壳，顶底紧固螺栓，两组钢丝绳骑跨形成四肢", "cable_axis_z": 1.38, "cable_segment_x": [ -2.8, 2.8 ], "clamp_x": [ -0.58, 0.58 ], "clamp_inner_radius": 0.256, "clamp_outer_bearing_radius": 0.352, "riding_groove_centers_x": [ -0.335, 0.335 ], "hanger_curve_centerline_radius": 0.378, "hanger_rope_radius": 0.026, "hanger_lower_legs": 4, "bolt_x": [ -0.46, 0, 0.46 ], "bolt_rows_z": [ 1.02, 1.74 ], "deck_anchor_top_z": -1.15, "display_motion": { "clamp_slide": 0, "mode": "梁、吊索、索夹主缆依次高亮" }, "simplifications": [ "依据法尔胜骑跨型产品及教材图2-31、专利图1/2核对类型", "没有混用销接耳板式吊杆", "下端锚固座为教学简化，并非原专利施工夹具复原", "主缆局部按水平片段展示，不给出全桥力值" ] }, "diaphragm": { "title": "三片T梁间中横隔板与湿接缝", "type": "预制挑出横隔板加中间现浇接头", "length": 5.8, "deck_width": 5.5, "girder_y": [ -1.75, 0, 1.75 ], "girder_count": 3, "girder_web_thickness": 0.24, "girder_flange_width": 1.65, "girder_top_z": 1.55, "deck_slab_thickness": 0.14, "deck_slab_center_z": 1.62, "diaphragm_x": [ 0 ], "diaphragm_thickness": 0.28, "diaphragm_height": 1.1, "diaphragm_bottom_z": 0.3, "diaphragm_between_web_centers_y": [ -0.875, 0.875 ], "wet_joint_width": 0.14, "precast_stub_width_each_side": 0.685, "web_connection_overlap": 0, "display_motion": { "beam_deflection": 0, "mode": "局部受荷与横向共同工作箭头" }, "source_dimension_distinction": "TL30图册原例5片梁、梁距2.575m、横隔板高1.67m等为来源项目事实；此3片局部教学模型尺寸单列，未宣称逐尺寸复原图册。", "simplifications": [ "仅展示一处中横隔板", "湿接缝钢筋为连接位置示意，不提供施工配筋", "不输出横向分布系数或挠度" ] }, "spherical": { "title": "双向活动球形支座", "type": "参考mageba RESTON SPHERICAL，下凹座+上凸球冠+上平面滑动副", "base_plate_size": [ 1.76, 1.56, 0.12 ], "sphere_radius": 1.6, "sphere_center": [ 0, 0, 1.87 ], "convex_cap_plan_radius": 0.55, "convex_cap_bottom_z": 0.27, "convex_cap_top_z": 0.495, "spherical_liner_thickness_z": 0.014, "spherical_liner_plan_radius": 0.65, "concave_spherical_coverage_radius": 0.67, "planar_liner_top_z": 0.508, "upper_polished_plate_bottom_z": 0.508, "upper_bearing_plate_size": [ 1.91, 1.64, 0.15 ], "display_motion": { "planar_slide_peak": 0.26, "rotation_peak_rad": 0.052, "classification": "amplified_teaching_motion", "sequential_modes": [ "0..0.5仅上平面滑移", "0.5..1仅绕同一球心转动" ] }, "assembly_contact_checks": [ "concave seat and liner share lower interface", "liner and convex cap share upper interface", "planar liner top touches polished plate bottom" ], "simplifications": [ "非完整滚动球，水平位移不来自球体滚动", "教材图1.14采用下凸上凹型，和本模型厂家型式不同，应作为对照", "球面衬层厚度按竖向简化表达；不模拟摩擦、限位、密封或承载力" ] }, "elastomeric": { "title": "包胶型钢板增强叠层橡胶支座", "type": "参考LASTO BLOCK Type B，内嵌钢板与橡胶硫化粘结", "plinth_top_z": 0, "bedding_thickness": 0.03, "bearing_bottom_z": 0.03, "bearing_size_xy": [ 1.1, 0.85 ], "inner_steel_size_xy": [ 0.99, 0.74 ], "rubber_layer_count": 6, "rubber_layer_thickness": 0.035, "steel_layer_count": 5, "steel_layer_thickness": 0.008, "top_bottom_rubber_cover_each": 0.008, "total_rubber_height": 0.226, "total_height": 0.266, "display_motion": { "top_shear_displacement_peak": 0.16, "rubber_compression_peak_ratio": 0.055, "classification": "amplified_teaching_motion", "shear_distribution": "累计橡胶厚度分配，钢板不剪切不伸缩", "steel_vertical_strain": 0 }, "assembly_contact_checks": [ "plinth top touches bedding bottom", "bedding top touches pad bottom", "bonded interfaces retain continuous horizontal displacement", "steel plates remain planar and keep in-plane dimensions" ], "simplifications": [ "非设计产品尺寸，不判断允许剪应变", "受压鼓胀仅为定性可视化，未求解不可压缩材料体积约束", "只展示剪切与受压，未演示支座转角" ] } }, "presentation_state_separation": { "explosion": "独立显示变换，禁用工作动画", "cutaway": "隐藏半壳或遮挡构件，不修改装配数据", "reset": "每次update从装配基准重建，允许任意跳进度并可逆复位", "loads": "无数值的教学箭头；无已验算承载能力含义" }, "supplemental_contracts": [ "structure-contract.json", "equipment-contract.json" ], "expanded_on": "2026-09-27" }