M. To add an American steel joist section
To add an American steel joist section and, optionally, have it sized by span and load, use the following procedure.
STAAD.Pro includes the facilities for specifying steel joists and joist girders. The basis for this implementation is the information contained in the 1994 publication of the American Steel Joist Institute called "Fortieth edition standard specifications, load tables and weight tables for steel joist and joist girders." Member properties can be assigned by specifying a joist designation contained in tables supplied with the program, including the following joists and joist girder types:
- Open web steel joists – K series and KCS joists
- Longspan steel joists – LH series
- Deep Longspan steel joists – DLH series
- Joist Girders – G series
orTip: Selecting the country from the Database tool drop-down list first results in a faster dialog load time.The Section Profile Tables dialog opens.
- Select the Steel tab and then the American Steel Joist entry on the left-hand side.
- Select the series of joists you want to use.
To have the program select a least-weight option of joist for you,
do the following:
- Type the search criteria (differs by joist series) in the Find suitable joist section fields.
- Click Find Section.
To… Do the following… add the section to the model for later assignment click Add. add the section to the model and assign to the current member selection click Asign.
- Click Close.
An example of a structure with joist:
STAAD SPACE EXAMPLE FOR JOIST GIRDER UNIT FEET KIP JOINT COORDINATES 1 0 0 0; 2 0 10 0 3 30 10 0; 4 30 0 0 MEMBER INCIDENCES 1 1 2; 2 2 3; 3 3 4; MEMBER PROPERTY AMERICAN 1 3 TABLE ST W21x50 MEMBER PROPERTY SJIJOIST 2 TABLE ST 22K6 CONSTANTS E STEEL ALL DENSITY STEEL ALL POISSON STEEL ALL SUPPORTS 1 4 FIXED UNIT POUND FEET LOAD 1 SELFWEIGHT Y -1 LOAD 2 MEMBER LOAD 2 UNI GY -250 LOAD COMB 3 1 1 2 1 PERF ANALY PRINT STAT CHECK PRINT SUPP REAC FINISH