feat(abut-rebar): 교대 흉벽 · 브라켓 배근 규칙 P1–P11 (AD5)
- P1 · P2 · P3 (벽체 연직 격자 −17.5 / −1.6 / −35), P4 · P5 (상단 경사와 나란함, 계단에서 끊음, P5 브라켓 상면 위 · 아래), P6 · P7 (한 칸 배수, 반 칸 엇갈림, 1/sin θ) - P8 · P9 끝면 ㄷ형, P11 끝면 연직, P10 다웰 (슬래브 측면선 가운데 맞춤, P3 수평 다리 비켜감 Q-P5 → RB-AP06, 모따기 RB-AP05) - 대표 단면 = 흉벽 높이가 입력값(2500)인 곳 (흉벽 상단선이 받침 ① · 마지막 받침으로 정해져 IP3 끝은 2468) - D25 규격 추가. 테스트: 교대흉벽철근.md §11 (fck 27) Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
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import { readFileSync } from 'node:fs';
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import { fileURLToPath } from 'node:url';
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import * as XLSX from 'xlsx';
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import { describe, expect, it } from 'vitest';
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import { buildAbut } from '../src/core/abut/geometry';
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import { parseAbutments, toAbutInput } from '../src/core/abut/parse';
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import { buildMembers } from '../src/core/abut/members';
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import { buildWings } from '../src/core/abut/wings';
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import { abutFootingGeom, abutFootingRebar } from '../src/core/abut/rebar/footing';
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import { skewAngle } from '../src/core/abut/rebar/skew-layout';
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import { abutWallGeom, abutWallRebar } from '../src/core/abut/rebar/wall';
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import { abutParapetGeom, abutParapetRebar, slabSpanAt, type AbutParapetGeom } from '../src/core/abut/rebar/parapet';
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import { resolveSlab } from '../src/core/abut/slab';
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import { abutPlanOutline, abutSkewK } from '../src/view/abut-scene';
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import { DEFAULT_MATERIAL } from '../src/core/rebar/common';
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// 예제 A1 (교대흉벽철근.md §11). 기획서 기대값은 fck 27 · fy 400, 구간 1 끝 (IP3 끝) 단면.
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const RAG = fileURLToPath(new URL('../../../RAG/운곡교P1입력.xlsx', import.meta.url));
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const rec = parseAbutments(XLSX.read(readFileSync(RAG), { type: 'buffer' })).abutments[0];
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const model = buildAbut(toAbutInput(rec));
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const members = buildMembers(model, { bottomEl: rec.foundationBottomEl, pileLengthMm: rec.pileLengthMm });
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const wings = buildWings(model, members);
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const angle = skewAngle(rec.skewDeg);
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const footing = abutFootingRebar(abutFootingGeom(model.length, members.shape, angle));
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const fck27 = { ...DEFAULT_MATERIAL, fck: 27 };
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const wGeom = abutWallGeom(model.length, members, angle);
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const wall = abutWallRebar(wGeom, footing, undefined, fck27);
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const k = abutSkewK(model);
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const xP10 = (wGeom.xb - 500) / 2;
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const slab = resolveSlab();
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const span = slabSpanAt(abutPlanOutline(model, members, wings, slab).slab, xP10 / 1000, k)!;
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const chamfer = (sEnd: number) => (wings.find((w) => w.sEnd === sEnd)?.haunchM ?? 0) * 1000;
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const geom: AbutParapetGeom = abutParapetGeom(wGeom, members.shape, {
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B: model.wing!.slabWidthMm,
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a: span.a,
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b: span.b,
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nearT: members.shape.parapetBackM * 1000 - slab.parapetGapMm,
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chamferA: chamfer(0),
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chamferB: chamfer(model.length),
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});
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const A1 = abutParapetRebar(geom, wall, undefined, fck27, 'A1');
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const bar = (r: typeof A1, mark: string) => r.bars.find((b) => b.mark === mark)!;
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describe('교대 흉벽 · 브라켓 배근 A1 (AD5, 교대흉벽철근.md §11)', () => {
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it('geometry: 흉벽 높이 입력 2500, 브라켓 850, 흉벽 배면 −500, 슬래브 폭 11253 (반올림 11254). 상단선은 받침 ① · 마지막 받침이 정해 IP1 2529 · IP3 2468', () => {
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expect([geom.Hp, geom.bracketH, geom.parapetBack]).toEqual([2500, 850, -500]);
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expect(Math.abs(geom.slab!.B - 11253)).toBeLessThanOrEqual(1);
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const hAt = (u: number) => geom.top[0] + ((geom.top[1] - geom.top[0]) * u) / wGeom.L - (wGeom.HF + wGeom.segments.find((s) => u < s.to)!.H);
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expect(hAt(A1.uRef)).toBeCloseTo(2500, 6); // 대표 단면 = 흉벽 높이 2500인 곳
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});
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it('위치: P4 −100, P1 −115.9, P2 뒤 다리 −400, P5 −384.1 / −684.1, P3 −700, P10 −650', () => {
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expect([A1.x.P4, A1.x.P2back, A1.x.P3, A1.x.P10]).toEqual([-100, -400, -700, -650]);
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expect(A1.x.P1).toBeCloseTo(-115.9, 6);
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expect(A1.x.P5up).toBeCloseTo(-384.1, 6);
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expect(A1.x.P5low).toBeCloseTo(-684.1, 6);
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});
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it('격자: P1 = 저판 − 17.5 (47), P2 − 1.6 (94), P3 − 35 (94)', () => {
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expect(A1.offsets.P1).toBeCloseTo(-17.5, 6);
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expect(A1.offsets.P2).toBeCloseTo(-1.6, 6);
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expect(A1.offsets.P3).toBeCloseTo(-35, 6);
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expect(['P1', 'P2', 'P3'].map((m) => bar(A1, m).count)).toEqual([47, 94, 94]);
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});
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it('길이 (대표 단면, 흉벽 높이 2500): P1 3119, P2 2504, P3 2885 (ㄱ형)', () => {
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expect(['P1', 'P2', 'P3'].map((m) => bar(A1, m).length)).toEqual([3119, 2504, 2885]);
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});
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it('수평 단 (대표 단면): P4 19단, P5 7 + 12단 (1650 단은 위 그룹)', () => {
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expect([A1.levels.P4, A1.levels.P5up, A1.levels.P5low]).toEqual([19, 7, 12]);
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});
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it('P6 · P7: 대표 단면 3단 / 2단, 교대축 12개, 길이 600 / 300 (1/sin θ) + 2 × 197 = 996 / 695', () => {
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expect([A1.levels.P6, A1.levels.P7]).toEqual([3, 2]);
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expect(bar(A1, 'P7').count).toBe(24);
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expect([bar(A1, 'P6').length, bar(A1, 'P7').length]).toEqual([996, 695]);
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});
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it('P8 · P9: 12단 1776 / 7단 1475, 각 × 2면, 끝면에서 114.3', () => {
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expect([bar(A1, 'P8').count, bar(A1, 'P8').length]).toEqual([24, 1776]);
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expect([bar(A1, 'P9').count, bar(A1, 'P9').length]).toEqual([14, 1475]);
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const p8 = A1.paths.find((p) => p.mark === 'P8')!;
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expect(p8.pts[1][0] * angle.sin).toBeCloseTo(114.3, 6);
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});
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it('P11: 끝면당 3개 (x −100 · −400 · −700), l_d + 흉벽 높이 − c / l_d + 흉벽 높이 − 850 − c (높이 2500이면 3135 / 3135 / 2285), 양끝 6개', () => {
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expect(bar(A1, 'P11').count).toBe(6);
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const low = A1.paths.filter((p) => p.mark === 'P11' && p.pts[0][0] > wGeom.L / 2);
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const u = low[0].pts[0][0]; // 끝면 − c / sin θ
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const H = geom.top[0] + ((geom.top[1] - geom.top[0]) * u) / wGeom.L - (wGeom.HF + 2372); // IP3 끝의 실제 흉벽 높이 (약 2468)
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expect(low.map((p) => p.pts[1][2] - p.pts[0][2])).toEqual([735 + H - 100, 735 + H - 100, 735 + H - 850 - 100].map((v) => expect.closeTo(v, 6)));
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const flat = abutParapetRebar({ ...geom, top: [wGeom.HF + 2372 + 2500, wGeom.HF + 2372 + 2500] }, wall, undefined, fck27);
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const lowFlat = flat.paths.filter((p) => p.mark === 'P11' && p.pts[0][0] > wGeom.L / 2);
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expect(lowFlat.map((p) => Math.round(p.pts[1][2] - p.pts[0][2]))).toEqual([3135, 3135, 2285]);
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});
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it('P10: B 11253 → 28개, e 126.5; 한쪽 없음 11725 → 29, 양측 없음 12197 → 30; 모따기 검사 통과', () => {
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expect(A1.dowel.n).toBe(28);
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expect(abutParapetRebar({ ...geom, slab: { ...geom.slab!, B: 11253 } }, wall, undefined, fck27).dowel.e).toBe(126.5);
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// 슬래브 가운데 맞춤: 양끝 다웰이 측면선에서 거의 같은 거리 (c + e, Q-P5로 옮긴 만큼만 다름).
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const s = geom.slab!;
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expect(Math.abs(A1.dowel.positions[0] - s.a - (s.b - A1.dowel.positions[27]))).toBeLessThan(2 * 20.65 + 1);
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const withB = (B: number) => abutParapetRebar({ ...geom, slab: { ...geom.slab!, B } }, wall, undefined, fck27).dowel.n;
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expect([withB(11725), withB(12197)]).toEqual([29, 30]);
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expect(A1.issues.map((i) => i.code)).not.toContain('RB-AP05');
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});
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it('Q-P5: every dowel clears the P3 수평 다리 by (25.4 + 15.9)/2', () => {
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const p3 = A1.paths.filter((p) => p.mark === 'P3').map((p) => p.pts[0][0]);
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for (const u of A1.dowel.positions) expect(Math.min(...p3.map((q) => Math.abs(u - q)))).toBeGreaterThanOrEqual(20.65 - 1e-6);
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expect(A1.issues.map((i) => i.code)).not.toContain('RB-AP06');
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});
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it('경사: 흉벽 상단이 기울어 P1 길이가 위치마다 다름 (범위), 수평 단이 경사와 나란함', () => {
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const p1 = bar(A1, 'P1');
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expect(p1.lengthMax).toBeGreaterThan(p1.lengthMin);
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const p4 = A1.paths.find((p) => p.mark === 'P4')!;
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const slope = (geom.top[1] - geom.top[0]) / wGeom.L;
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expect((p4.pts[1][2] - p4.pts[0][2]) / (p4.pts[1][0] - p4.pts[0][0])).toBeCloseTo(slope, 9);
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});
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it('A1 has no warning', () => {
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expect(A1.issues.filter((i) => i.level !== 'I').map((i) => i.code)).toEqual([]);
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});
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it('l_d 연동: fck 30 → P1 · P2 · P3 길이 함께 짧아짐', () => {
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const r30 = abutParapetRebar(geom, wall, undefined, { ...DEFAULT_MATERIAL, fck: 30 });
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const dl = A1.ld.H16 - r30.ld.H16;
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expect(bar(r30, 'P1').length).toBe(3119 - dl);
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expect(bar(r30, 'P2').length).toBe(2504 - 2 * dl);
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expect(bar(r30, 'P3').length).toBe(2885 - dl);
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});
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it('묶음 수정 · 배수 → RB-AP03 "수정됨"', () => {
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const r = abutParapetRebar(geom, wall, { sHoriz: 150, k67L: 6 }, fck27);
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expect(r.issues.map((i) => i.code)).toContain('RB-AP03');
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expect(bar(r, 'P4').modified).toBe(true);
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expect(bar(r, 'P6').modified).toBe(true);
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expect(bar(r, 'P1').modified).toBe(false);
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});
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});
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