F. K. Kong MA, MSc, PhD, CEng, FICE, FIStructE, R. H. Evans CBE, DSc, D ès Sc, DTech, PhD, CEng, FICE, FIMechE, FIStructE (auth.)-Reinforced and Prestressed Concrete-Springer US (1987)

468 Computer programs
Table 12.1-1 (continued)
I PCU I REAL*& I feu I Characteristic strength of concrete
I PSDASH I REAL*& I ts' I See Eqn &.6-11 I
I n I REAL*& I fy I Characteristic strength ot steel I
1- - - - - 1- - - - - 1- - - - - -1 - - - - - - - - - - - - - - - - - - - - - I
I HP I REAL*& I ht I Flange thickness I
1- - - - - 1- - - - - 1- - - - - -1 - - - - - - - - - - - - - - - - - - - - - I
I It I REAL*& I It I It • M/bd2fcu I
I KDASH I REAL*& I It' I See Eqn & • 7-5 I
I ltP I REAL*& I Itt I See Eqn &.8-5
1- - - - - 1- - - - - 1- - - - - -1 - - - - - - - - - - - - - - - - - - - - -
I M I REAL*4 I M I Design ultimate IIIOIDent
I MU I REAL*& I Mu I Moment capacity ot concrete (Eqn & • 7-8)
I MUP I REAL*& I Muf I Molllent capacity ot flange (Eqn &.8-&)
I MOW I REAL*& I Muw I Molllent capacity of web (Eqn &.8-7)
1- - - - - 1- - - - - 1- - - - - -1 - - - - - - - - - - - - - - - - - - - - -
I R I IIITEGER*ll I Character to indicate Rectangular section
1- - - - - 1- - - - - 1- - - - - -1 - - - - - - - - - - - - - - - - - - - - -
I X I REA!-*& I x I Neutral axis depth
I XOD I REAL*& I x/d I See Eqn &. 7-3
1- - - - - 1- - - - - 1- - - - - -1 - - - - - - - - - - - - - - - - - - - - -
I z I REAL*& I z I Lever arm distance
I ZOO I REAL*& I z/d I See Eqn & • 7-6 or Eqn & • 7-7
* See list ot symbols in the "Hotation" at the beginning of the book.
Block (ii) in Fig. 12.1-1 represents the Main Program itself, and
corresponds to Lines 29-79 of the program listing in Fig. 12.1-2. The
program begins with the program name BMBRSR on Line 29, followed by
the declarations of the variables on Lines 31-34.
Lines 36-79 of Fig. 12.1-2 shows that the Main Program does the
various jobs by calling on Subroutines. Thus Lines 36-40 refers to the
Subroutine INIT ( = INITialization) to initialize the program; similarly,
Lines 42-47 refers to the Subroutine CONSTA (=CONSTAnts) and so
on. All the Subroutines are listed alphabetically after the Main Program,
i.e. in Block (iii) of Fig. 12.1-1. Block (iii) corresponds to lines 82-638 of
the program listing in Fig. 12.1-2. The Subroutines are listed in
alphabetical order so that each can be easily located by the program user.
Thus, the Subroutine CONSTA is listed on Lines 82-149, followed by the
Subroutine FLANGE on Lines 152-254 and so on.
The layout of each Subroutine is similar to that of the Main Program.
Thus, Lines 82-92 are the Header for the Subroutine CONSTA, and Lines
94-149 are the Subroutine program statements.
The program listing in Fig. 12.1-2 also shows some other features
common to all the computer programs in this chapter:
(a) Each 'Call Subroutine' module in the Main Program includes a
Header, which tells the user the reason for calling that Subroutine.
See, for example, Lines 42-47.
(b) Similarly, each coherent group of statements within a Subroutine also
includes a Header which describes the action of that group of
statements. See, for example, Lines 113-119.
It is appropriate here to remind the reader not to confuse Line