34 lines
1.5 KiB
TypeScript
34 lines
1.5 KiB
TypeScript
import { describe, expect, it } from 'vitest';
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import { developmentLength, hookLength, MATERIAL_DEFAULTS, spliceLength } from '../src/core/rebar/common';
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describe('③ 공통 규칙 (spec §6.2, plan C1)', () => {
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it('fck and fy defaults are assumed values (I02)', () => {
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expect(MATERIAL_DEFAULTS.fck).toBe(27);
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expect(MATERIAL_DEFAULTS.fy.H).toBe(400);
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expect(MATERIAL_DEFAULTS.fy.S).toBe(500);
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expect(MATERIAL_DEFAULTS.assumed).toBe(true);
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});
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it('development length follows l_d = 0.6·d_b·fy/(λ·√fck)', () => {
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// H19, SD400, fck 27: 0.6 × 19 × 400 / √27
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expect(developmentLength(19, 400, 27)).toBeCloseTo((0.6 * 19 * 400) / Math.sqrt(27), 9);
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expect(developmentLength(19, 400, 27)).toBeCloseTo(877.6, 0);
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});
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it('splice length is 1.3 × l_d', () => {
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expect(spliceLength(19, 400, 27)).toBeCloseTo(1.3 * developmentLength(19, 400, 27), 9);
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});
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it('hook lengths: main bars D25 or less 15.5 d_b, D29–D35 16.5 d_b; ties D16 or less 8.5 d_b', () => {
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expect(hookLength('main90', 25)).toBeCloseTo(15.5 * 25, 9);
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expect(hookLength('main90', 29)).toBeCloseTo(16.5 * 29, 9);
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expect(hookLength('tie90', 16)).toBeCloseTo(8.5 * 16, 9);
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expect(() => hookLength('main90', 40)).toThrow('없는 지름');
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expect(() => hookLength('tie90', 19)).toThrow('없는 지름');
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});
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it('135° stirrup hook as written in the spec: 2.5·d_b·(3π/4) + 6·d_b', () => {
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expect(hookLength('stirrup135', 16)).toBeCloseTo(2.5 * 16 * ((3 * Math.PI) / 4) + 6 * 16, 9);
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});
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});
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