An IBM-650 Program for the Computation of Thermal Gradients in Mass Concrete Structures

Abstract

A computer program for the computation of the unsteady state temperatures that develop during the construction of a concrete dam in layers (lifts) is described. Information pertaining to the following ambient and structural conditions and thermal properties is necessary for a computation: ambient air temperature and foundation temperature, concrete temperature at time of placement, lift thickness, number of days between lifts, and adiabatic temperature rise and thermal diffusivity of the concrete. The computation may be continued for fifty lifts. The computation is based on a numerical procedure for the solution of the heat flow equation for one dimension. The space interval is one-quarter thickness of a lift, and the time interval is one-quarter day. The program is written for the basic IBM-650 computer with a 2000-word drum.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1960
Accession Number
AD0751131

Entities

People

  • D. L. Neumann
  • E. E. Mccoy

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Accuracy
  • Air Temperature
  • Climate Change
  • Computations
  • Computer Personnel
  • Computer Programs
  • Computers
  • Concrete
  • Construction
  • Engineers
  • Equations
  • Heat Energy
  • Heat Transmission
  • Temperature Gradients
  • Thermal Diffusivity
  • Thermal Properties
  • Time Intervals

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Fluid Mechanics and Fluid Dynamics.
  • Hydraulic Engineering.

Technology Areas

  • Space