feat(bearing): 교각 솔플레이트를 2026-11-06 결정으로 (짝 받침 S · 열 T · 거더 하면 고정)

받침방위각_솔플레이트검토.md §3과 시안(Version 110–113)을 따른다 (사용자 결정 2026-11-06: 시안 적용).
11-03 C안(받침높이 H 고정, h3 = H − T, S 입력)을 대체한다.
- S: 교량 전체(A1, P1 … Pn, A2) 거더 짝 받침의 z 차 / 수평거리. 없으면 교각 종단경사 입력 →
  다른 열 같은 순번 값(가정, WS03) → 0 %(WS03). 받침별 직접 수정(수정됨)
- 평면 L = A + 100, W = B + 100 (받침별 A × B, 기본 700 × 640 가정), h3 181
- T = 열마다 max(22, ⌈22 + L·|S|/2⌉), 열 T 직접 수정 가능(T2 < T_min → WS02).
  T1은 오르막 쪽(3D 쐐기의 두꺼운 끝도 그쪽), T2 반대쪽
- 거더 하면 고정: 블럭 상면 = z − (T − T_ref), T_ref 30
- 짝 받침은 불러오기·프로젝트 열기 때 교량 전체로 계산해 교각 생성에 넘김
- ② 카드: h3·T_ref·T_min·여유·열 T·종단경사 입력, 표에 짝 받침·S 근거·받침별 S/A/B 수정·검산 W08·검사
- P1 검증(A1과 함께): S −1.908 … −1.902 %, L 800 · W 740 · T 30 · T1 38 · T2 22, 블럭 높이 변화 없음
- 블럭·솔플레이트 테스트는 A1–P1 짝 문맥으로 실행 (짝이 없으면 S 0 · T 22 · 블럭 +8 mm)
교대(QA-15 C안)와 Pier 시트 종단경사 열 읽기는 아직 남음.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/core/geometry.ts

@@ -6,7 +6,8 @@ import { type ColumnRebarSettings, DEFAULT_COLUMN_REBAR } from './rebar/column-s
 import { type FootingRebarSettings, DEFAULT_FOOTING_REBAR } from './rebar/footing-settings';
 import { layoutText, resolveRowCounts, rowLayout, type PileGeometry } from './piles';
 import type { PierInput, Row, SolplatePlan } from './types';
-import { SOLPLATE_RULE_DEFAULT, solplatePlan } from './solplate-rule';
+import type { BearingPair } from './bearing-pair';
+import { type BearingSole, structureSoles } from './sole-plate';
 import { type CopingGeom, P1_COPING_GEOM } from './coping-geom';
 import { castShape } from './cast-in-place-shape';
 
@@ -87,7 +88,7 @@ export interface BlockModel {
   padTop: number;
   /** Skew (deg, −90…90] of the bearing row against the perpendicular of the stretch axis; the block sides follow the row. */
   rowSkewDeg: number;
-  /** Solplate of this bearing (C안, 2026-11-03): the pier's rule, the same for every bearing. */
+  /** Solplate of this bearing (2026-11-06): S from the girder pair, T per row, T1 on the 오르막 쪽. */
   plan: SolplatePlan;
   /** Block bottom from the 두부보 상면 slope (before any 교좌면 EL input), for the check against the input (2026-11-03). */
   seatCalc: number;
@@ -221,6 +222,8 @@ export interface PierModel {
   };
   /** Dedicated rebar source; never substitute footing-anchored column inputs. */
   castInput?: PierInput;
+  /** Solplate of every bearing with its S source, pair and warnings (2026-11-06), for the ② card and checks. */
+  soles: BearingSole[];
 }
 
 /**
@@ -245,7 +248,10 @@ export function solveIp4(ip1: Vec2, ip2: Vec2, ip3: Vec2, angleDeg: number): Vec
  * Each object carries its stretch k and a local s measured from that stretch's base (k = 0: BP1, k = 1: IP4).
  * A bent coping (IP4 angle ≠ 0) puts each footing in its stretch's frame; footings that would cross the kink are not combined.
  */
-export function buildPier(input: PierInput): PierModel {
+/** Bridge context for one pier: the girder pairs over A1, P1 … Pn, A2 (girderPairs), for the solplate slope S. */
+export interface PierContext { pairs?: BearingPair[] }
+
+export function buildPier(input: PierInput, ctx: PierContext = {}): PierModel {
   const ip = (name: string) => {
     const p = input.ips.find((q) => q.name === name);
     if (!p) throw new Error(`IP 누락: ${name}`);
@@ -455,19 +461,33 @@ export function buildPier(input: PierInput): PierModel {
   const blocks: BlockModel[] = [];
   const bearingAz = new Map(input.bearings.map((r) => [r.no, r.azimuthDeg]));
   const skewOf = (no: number, k: number) => rowSkewDeg(bearingAz.get(no) ?? NaN, axis.segments[k].u);
-  // Solplate of every bearing from the pier's rule (C안, 2026-11-03): the same plan for each bearing.
-  const plan = solplatePlan(input.solplate ?? SOLPLATE_RULE_DEFAULT);
+  // Solplate of every bearing (결정 2026-11-06): S from the girder pair (ctx.pairs over the whole bridge), else the
+  // 종단경사 input, else the other row; T per row; the girder underside stays, so the block top drops by T − T_ref.
+  const soles = new Map(structureSoles(input.name, input.bearings.map((b) => ({ no: b.no, row: b.row, azimuthDeg: b.azimuthDeg })),
+    input.sole, ctx.pairs ?? [], input.longitudinalSlope === undefined ? undefined : input.longitudinalSlope * 100).map((s) => [s.no, s]));
+  const planOf = (no: number, k: number, skewDeg: number): SolplatePlan => {
+    const s = soles.get(no)!;
+    // The block's c axis in (E, N): (−sin d)·u + (cos d)·nrm; T1 goes to the end of c that points uphill.
+    const { u, nrm } = axis.segments[k];
+    const d = (skewDeg * Math.PI) / 180;
+    const c = { e: -Math.sin(d) * u.e + Math.cos(d) * nrm.e, n: -Math.sin(d) * u.n + Math.cos(d) * nrm.n };
+    const t1Side = s.uphill && c.e * s.uphill.e + c.n * s.uphill.n > 0 ? 1 : -1;
+    return { L: s.L, W: s.W, slopePct: s.slopePct, T: s.T, T1: s.T1, T2: s.T2, h3: s.h3, t1Side };
+  };
+  const dropOf = (no: number) => soles.get(no)!.dropMm / 1000;
   // 교좌면 EL (2026-11-03): when the input gives it, the block bottom is that EL; otherwise the 두부보 상면 slope.
   const seatOf = new Map(input.bearings.map((r) => [r.no, r.seatEl]));
   frontPlaced.forEach((b) => {
     const seatCalc = segmentTop(segments, b.g);
     const bottom = seatOf.get(b.no) ?? seatCalc;
-    blocks.push({ no: b.no, row: '전열', k: b.k, s: b.s, g: b.g, n: b.n, bottom, top: b.z - DIM.padThickness, padTop: b.z, rowSkewDeg: skewOf(b.no, b.k), plan, seatCalc });
+    const skew = skewOf(b.no, b.k), drop = dropOf(b.no);
+    blocks.push({ no: b.no, row: '전열', k: b.k, s: b.s, g: b.g, n: b.n, bottom, top: b.z - DIM.padThickness - drop, padTop: b.z - drop, rowSkewDeg: skew, plan: planOf(b.no, b.k, skew), seatCalc });
   });
   backPlaced.forEach((b) => {
     const seatCalc = b.z - h2;
     const bottom = seatOf.get(b.no) ?? seatCalc;
-    blocks.push({ no: b.no, row: '후열', k: b.k, s: b.s, g: b.g, n: b.n, bottom, top: b.z - DIM.padThickness, padTop: b.z, rowSkewDeg: skewOf(b.no, b.k), plan, seatCalc });
+    const skew = skewOf(b.no, b.k), drop = dropOf(b.no);
+    blocks.push({ no: b.no, row: '후열', k: b.k, s: b.s, g: b.g, n: b.n, bottom, top: b.z - DIM.padThickness - drop, padTop: b.z - drop, rowSkewDeg: skew, plan: planOf(b.no, b.k, skew), seatCalc });
   });
 
   const blockHeightFront = blocks.find((b) => b.row === '전열')!.top - blocks.find((b) => b.row === '전열')!.bottom;
@@ -526,6 +546,7 @@ export function buildPier(input: PierInput): PierModel {
       blockHeightBack,
       frontBackDiffSpread,
     },
+    soles: [...soles.values()],
     ...(input.foundationType === '현장타설말뚝' ? { castInput: { ...input } } : {}),
   };
 }