bypraba Civil Encyclopedia — IS Codes, ACI Codes, Calculators and Formulas for Engineers Worldwide
Every formula. Every code.
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A complete civil engineering reference — IS codes, ACI codes, structural formulas, calculators, glossary, and construction guides. Built by a practising engineer. Trusted worldwide.
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Everything in one place
Calculators
Live RCC, concrete mix, footing, slab, column, and bar bending calculators — covering IS and ACI code methods.
13 calculatorsIS Codes
Clause-level summaries of IS 456, IS 875, IS 1893, IS 800, IS 10262, and more — with key tables and provisions.
10 deep-divesACI Codes
ACI 318, 301, 305, 308, 350, 440, and more — design provisions, tables, and clause-level references.
9 deep-divesFormulas
Structural, geotechnical, hydraulics, surveying, and construction formulas with variable definitions and worked examples.
52+ formulasGlossary
Plain-English definitions of every technical term — from admixtures to zero slump, A to Z.
164 termsAbbreviations
Every abbreviation on civil engineering drawings, reports, and codes — BBS, CBR, FGL, RCC, SBC, and 160+ more.
160+ abbreviationsStructural Elements
Beams, columns, slabs, footings, walls, connections — theory, design steps, detailing rules, and code clauses.
20 elementsFormulas
Essential equations
Moment of Resistance
Ultimate moment capacity of a singly-reinforced RCC beam section.
Base Shear
Design seismic base shear using equivalent static analysis.
Development Length
Minimum embedment for full bond development of a reinforcing bar.
Terzaghi Bearing Capacity
Ultimate bearing capacity of a strip footing on cohesive-frictional soil.
Manning's Open Channel
Mean flow velocity; n = roughness, R = hydraulic radius, S = bed slope.
Nominal Flexural Strength
Nominal moment capacity of a rectangular beam section per ACI 318-19.
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