Engineering calculators

LRFD & ASD load combinations per SBC 301 Chapter 2

SBC 301

Equivalent lateral force procedure with Riyadh/Jeddah/Dammam profiles

SBC 301 Ch.11-12

Wind pressure calculations for enclosed/open buildings

SBC 301 Ch.26-30

Flexure, shear, deflection check for rectangular and T-beams

SBC 304

Axial + biaxial bending capacity with slenderness effects

SBC 304

One-way and two-way slab design with punching shear

SBC 304

Isolated and combined footing design with bearing check

SBC 304

Flexural strength, lateral-torsional buckling, deflection

SBC 306

Compression capacity with Fcr per SBC 306 Chapter E

SBC 306

Shear wall design with boundary elements per SBC 304

SBC 304

Bolt group and weld design per SBC 306 Chapter J

SBC 306

Brace member and gusset plate design per SBC 306

SBC 306

Timber member design with NDS adjustment factors per SBC 308

SBC 308

Reinforced and unreinforced masonry wall design per SBC 305

SBC 305

Precast concrete member design with prestress losses and bearing

SBC 304

Post-tensioned slab/beam design with friction and elastic losses

SBC 304

Cantilever retaining wall stability and structural design

SBC 304

Single pile and pile group capacity with pile cap design

SBC 303

Flat, sloped, and drift snow loads per SBC 301 Chapter 7

SBC 301

Straight-bar tension development length per ACI 318-14 §25.4.2 / SBC 304

SBC 304 · ACI 318-14

Egress width, travel distance, occupant load factor

SBC 801

Minimum stairway width by occupant load and use group per SBC 801 §1011.2

SBC 801 · IBC 1011.2

Assembly fire resistance rating lookup and compliance

SBC 801

Fire separation distance and opening protection requirements

SBC 801

Automatic sprinkler system design per NFPA 13

NFPA 13

Atrium and stairwell smoke control system sizing

NFPA 92

Fire detection and notification appliance layout per NFPA 72

NFPA 72

Emergency and exit lighting power and battery sizing

SBC 801

Fire department access road and aerial apparatus requirements

IFC

Hazardous materials classification and storage limits

IFC

Cooling/heating load estimation for KSA climate zones

SBC 601

Supply and return duct sizing with pressure loss calculation

ASHRAE

Chilled/hot water pipe sizing with expansion tank calculation

ASHRAE

Chiller plant capacity sizing and energy efficiency analysis

ASHRAE 90.1

Boiler plant sizing with combustion efficiency check

ASHRAE 90.1

Outdoor air ventilation rates per ASHRAE 62.1

ASHRAE 62.1

Refrigerant charge limits and machinery room requirements

ASHRAE 15

HVAC system noise control and NC level analysis

ASHRAE

Building energy performance model with envelope and systems

ASHRAE 90.1

PMV/PPD thermal comfort assessment per ASHRAE 55

ASHRAE 55

Connected load, demand factors, feeder sizing

SBC 401

Power cable selection with derating and voltage drop

SBC 401

Distribution transformer capacity and impedance sizing

SBC 401

Standby generator sizing with step loading analysis

SBC 401

Uninterruptible power supply capacity and battery sizing

SBC 401

Short circuit current calculation for protective device coordination

SBC 401

Overcurrent protective device coordination study

SBC 401

Interior lighting layout with lux level verification

SBC 401

Lightning protection risk assessment and system design

SBC 401

Grounding electrode system design and resistance calculation

SBC 401

Power factor correction capacitor bank sizing

SBC 401

Solar photovoltaic system sizing and energy yield

SBC 401

Fixture units, pipe sizing, pressure loss per SBC 701

SBC 701

Sanitary drainage pipe sizing and venting requirements

SBC 701

Domestic hot water system sizing and recirculation

SBC 701

Medical gas pipeline system sizing per NFPA 99

NFPA 99

Fuel gas piping system sizing and pressure regulation

IFGC

Landscape irrigation system design and water budget

SBC 701

Swimming pool hydraulics and water treatment sizing

IBC

Fire pump and standpipe water supply design

NFPA 20

Roof and site storm drainage advanced sizing

SBC 701

Rational method, inlet sizing, pipe capacity

HEC-22

Cut/fill earthwork calculation and grading plan analysis

AASHTO/ADA

Pavement thickness design using AASHTO 1993 method

AASHTO 1993

SCS curve number method and detention basin sizing

SCS TR-55

Underground utility clearance and crossing analysis

ASCE 38

Parking lot layout optimization with stall and aisle sizing

IBC/ADA

Traffic impact analysis with trip generation and LOS

ITE/HCM

Municipal water distribution network analysis

AWWA M31

Gravity sewer system design with Manning equation

WEF MOP FD-5

Terzaghi, Meyerhof, Hansen bearing capacity methods

SBC 303

Immediate and consolidation settlement analysis

SBC 303

Bishop simplified method slope stability analysis

USACE EM 1110

Active, passive, and at-rest earth pressure calculations

SBC 303

Construction dewatering well design and flow estimation

CIRIA C750

Ground improvement technique selection and design

FHWA-NHI-06-019

Geotechnical investigation report parameter extraction

ASTM D1586

Sheet pile and soldier pile wall design for excavation

FHWA-IF-99-015

Soil liquefaction potential assessment per NCEER method

NCEER 1997

Component and cladding wind pressures for facade design

ASCE 7

Curtain wall structural and thermal performance analysis

AAMA CW

Glass thickness selection and deflection check per ASTM E1300

ASTM E1300

Facade assembly thermal transmittance and condensation risk

ASHRAE 90.1

Building maintenance unit and facade access system design

BS EN 1808

Exterior cladding system structural attachment design

ASCE 7

Building envelope U-value compliance per ASHRAE 90.1

ASHRAE 90.1

Window and glazing SHGC/U-value compliance check

ASHRAE 90.1

Lighting power density compliance per ASHRAE 90.1

ASHRAE 90.1

HVAC system efficiency compliance per ASHRAE 90.1

ASHRAE 90.1

Whole-life carbon assessment per EN 15978

EN 15978

Water use efficiency and fixture flow rate optimization

LEED/Estidama

Solar PV, solar thermal, wind energy system sizing

IEC 61724

Wall assembly STC rating calculation per ASTM E413

ASTM E413

Floor assembly IIC rating calculation per ASTM E989

ASTM E989

Reverberation time and room acoustic quality analysis

ISO 3382

Environmental noise propagation and barrier design

ISO 9613

Mechanical equipment noise impact assessment

ASHRAE

GIA, NIA, and efficiency ratio calculation per RICS

RICS

Construction cost benchmarking per NRM1 categories

NRM1

Bill of quantities preparation per NRM2 work sections

NRM2

Unit rate build-up from labour, material, and plant costs

NRM2

S-curve cashflow projection for construction projects

RICS

Value engineering opportunity analysis and cost-benefit

SAVE

Whole-life cost analysis per ISO 15686-5

ISO 15686-5

FIDIC/NEC4 contract clause analysis and risk identification

FIDIC/NEC4

Contract clause risk scoring from contractor/employer perspective

FIDIC/NEC4

Contract variation pricing with measured rates and daywork

FIDIC §13

Construction claims assessment and entitlement analysis

FIDIC §20

Critical path delay analysis per SCL Protocol

SCL Protocol

Interim payment certificate analysis and cashflow

FIDIC §14

Contractual notice period compliance and tracking

FIDIC §20

Arbitration and adjudication preparation assessment

ICC/DIAC

Subcontract agreement review and flow-down analysis

FIDIC §5

Performance bond and bank guarantee assessment

ICC URDG 758

Analytical (CLT) schedule risk analysis per AACE RP 57R-09 (not a Monte Carlo simulation)

AACE RP 57R-09

Earned value management metrics (CPI, SPI, EAC, ETC)

PMI PMBOK

Resource histogram leveling and over-allocation resolution

PMI PMBOK

Rolling look-ahead schedule with constraint analysis

LCI

Weather delay probability assessment for KSA regions

SCE

Elevator traffic analysis with waiting time and handling capacity

CIBSE Guide D

Elevator car size, speed, and shaft dimensioning

BS EN 81-20

Escalator and moving walk capacity and layout design

ASME A17.1

Scaffold system design and load capacity verification

BS EN 12811

Concrete formwork pressure and design per ACI 347

ACI 347

Reshoring and backshoring design during multi-story construction

ACI 347

Tower crane selection, reach, and capacity planning

BS 7121

Cofferdam design for below-grade construction dewatering

BS 8002

Falsework system design for bridge and slab construction

BS 5975

Temporary stability bracing for steel and precast erection

BS 5975

Accessible route compliance with clearances and slopes

ADA

Accessible ramp design with slope, landing, and handrail checks

ADA

Accessible restroom layout and fixture clearance verification

ADA

Accessible parking space count and dimensional compliance

ADA

Wayfinding and signage accessibility requirements

ADA

Elevator accessibility requirements and cab dimensions

ADA

Structured cabling and pathway design per TIA-568/569

TIA-568/569

CCTV, access control, and intrusion detection system design

BS EN 62676

Building management system point count and integration

ASHRAE

Commercial kitchen ventilation and equipment layout

IMC

Data center power, cooling, and tier classification

TIA-942

Healthcare facility requirements per FGI guidelines

FGI

Clean room classification and air change requirements

ISO 14644

Cold storage facility refrigeration load and insulation

ASHRAE

Below-grade waterproofing system design per BS 8102

BS 8102

Cathodic protection and coating system design

NACE SP0169

Concrete mix design proportioning per ACI 211.1

ACI 211.1

Soil classification and laboratory test interpretation

ASTM D2487

Environmental impact assessment for KSA PME compliance

KSA PME