百年木廊桥防洪构造拆解图：分离屋面、榫卯、桥墩护脚与洪水漂浮物挡架

人物或对象是百年木廊桥防洪构造拆解图，工作地点为洪水季流速很快的山谷河道，核心动作是分离屋面、榫卯、桥墩护脚与洪水漂浮物挡架，并标出受力方向。成片用途：公共建筑教育展板。采用榫卯构造爆炸轴测图配一张洪水状态剖面，节点编号一一对应；清楚可建造的结构连接、尺度、排水和运营关系必须清楚可信。与手部动作直接接触的材料必须满足液体流向、湿痕和冷凝遵循重力与温差。构图按一张主剖透视占画面三分之二，右侧排列必要节点，所有标注与主图对应执行，成片比例 3:2。色光为浅赭、竹叶青、瓦灰和柔和杏色；均匀工作光照清结构节点与材料交界，气氛不压过可建造性。画面只展开这一动作：动作分层：前景清楚呈现「分离屋面、榫卯、桥墩护脚与洪水漂浮物挡架」，中景以「并标出受力方向」交代结果，两层之间不插入其他事件。「洪水季流速很快的山谷河道」中只突出「百年木廊桥防洪构造拆解图」和动作「分离屋面、榫卯、桥墩护脚与洪」「并标出受力方向」。文字规则：构造标注只写「屋面、榫卯、桥墩、挡架」及受力箭头。同时排除漂浮结构、断裂路线、错误图例、透视漂移、品牌和水印。

Enter a fast mountain-valley river during flood season and show only an exploded flood-resilience study of a century-old covered timber bridge as the subject separates roof, timber joints, pier protection, and a floating-debris rack while marking load paths. This image is intended as a public architecture education board. Choose an exploded axonometric of timber joints paired with a flood-state section, with matching node numbers, and evaluate the result through clear, buildable structural connections, scale, drainage, and operational relationships. Treat the main working objects as follows: liquid flow, wet marks, and condensation follow gravity and temperature difference. Set the ratio to 3:2 and organize the camera through one primary sectional perspective filling two thirds of the frame, with necessary nodes aligned on the right and matched to the main view. Lighting and color: pale ochre, bamboo green, roof-tile gray, and soft apricot; even working light reveals structural joints and material boundaries without overpowering buildability. Action reading order: Stage the action in two layers: show “separates roof” clearly in the foreground, then use “timber joints, pier protection, and a floating-debris rack, marking load paths” in the middle plane as the consequence, with no unrelated event between them. Inside “a fast mountain-valley river during flood season,” emphasize only “an exploded flood-resilience study of a century-old” and the connected actions “separates roof” and “timber joints, pier protection, and a floating-debris rack, marking”. Handle text only as follows: construction labels show only “屋面、榫卯、桥墩、挡架” and load arrows. Necessary exclusions: Exclude floating structures, broken routes, incorrect legends, perspective drift, brands, and watermarks. Final art direction: architectural visualization with buildable structure, legible circulation, drainage and scale. Use this controlled palette as the dominant visual system: #D8D1C3, #657260, #8B6E55, #C96A43; preserve believable local material colors within it. Keep any text absent or minimal unless the source brief explicitly requires it; never add logos, signatures, or watermarks. Keep one unmistakable primary subject or information route and one readable visual action. Use disciplined negative space and avoid default perfect symmetry. Physical credibility is mandatory: correct gravity, contact shadows, material thickness, tool weight, joint loading, fabric tension, liquid direction, reflections, scale, and occlusion. Create an original visual with no resemblance to a public figure, copyrighted character, existing campaign, or living artist signature style. No unrelated decorative icons, floating objects, duplicated limbs, plastic gloss, waxy skin, synthetic collage artifacts, or AI watermarks. Return exactly one finished image composed for 3:2; no variants, process sheet, split panels, mockup frame, or contact sheet.