MERLIN-TRAP. Steel Truss Rating and Analysis Program

Transcription

1 MERLIN-TRAP Steel Truss Rating and Analysis Program

2 MERLIN-TRAP Development Began in 1976 Basic program completed in 1978 Microcomputer version in 1986 used in FHWA truss rating study, numerous major truss bridge rating projects by FHWA, state agencies, army corps, consulting firms SI version in 1996 LRFD version in 1998 WINDOWS, WINDOWS/NT & Network version in 1999

3 MERLIN-TRAP Banner Page

4 MERLIN-TRAP Input Utility

5 MERLIN-TRAP Graphic Utility

6 TRAP Rating Output Dead Load Deflection Influence Lines Force Summary for Lower Chords Allowable Force Summary for Lower Chords Rating Summary for Lower Chords Rating Analysis Summary

7 TRUSS RATING AND ANALYSIS PROGRAM (TRAP V.6.2) PAGE 23 SPAN DECK CANTILEVER TRUSS TABLE 3.5 DEAD LOAD DEFLECTIONS (UNFACTORED) LOWER PANEL POINT DEFLECTIONS DEFLECTIONS DUE TO TOTAL STEEL TOTAL DEAD LOAD DEFLECTIONS PANEL POINT PP HORIZONTAL VERTICAL PP HORIZONTAL VERTICAL NO LOAD DEFLECTION DEFLECTION LOAD DEFLECTION DEFLECTION (K) (IN) (IN) (K) (IN) (IN) L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L

8 TABLE 4.1 MEMBER INFLUENCE LINE VALUES INFLUENCE LINE ORDINATES FOR TRUSS MEMBER L 5 L PP ORDINATE PP ORDINATE PP ORDINATE PP ORDINATE PP ORDINATE NO NO NO NO NO TABLE 4.1 MEMBER INFLUENCE LINE VALUES INFLUENCE LINE ORDINATES FOR TRUSS MEMBER U 6 U PP ORDINATE PP ORDINATE PP ORDINATE PP ORDINATE PP ORDINATE NO NO NO NO NO TABLE 4.1 MEMBER INFLUENCE LINE VALUES INFLUENCE LINE ORDINATES FOR TRUSS MEMBER L 7 U PP ORDINATE PP ORDINATE PP ORDINATE PP ORDINATE PP ORDINATE NO NO NO NO NO

9 TRUSS RATING AND ANALYSIS PROGRAM (TRAP V.6.2 ) PAGE 71 SPAN DECK CANTILEVER TRUSS TABLE 10.1 DL+LL+I FORCE SUMMARY FOR LOWER CHORD MEMBERS (FACTORED) AASHTO LOADING RESULTS MAXIMUM MAXIMUM MAXIMUM MINIMUM TOTAL TENSION COMPRESSION MEMBER FORCE MEMBER FORCE MEMBER DEAD LOAD LL+I TYPE LL+I TYPE DL+LL+I TYPE DL+LL+I TYPE (K) (K) (K) (K) (K) L 1 L HL HL HL HL L 2 L HL HL HL HL L 3 L HL HL HL HL L 4 L HL HL HL HL L 5 L HL HL HL HL L 6 L HL HL HL HL L 7 L HL HL HL HL L 8 L HL HL HL HL L 9 L HL HL HL HL L10 L HL HL HL HL L11 L HL HL HL HL L12 L HL HL HL HL L13 L HL HL HL HL L14 L HL.00 HL.00 HL.00 HL L15 L HL.00 HL HL HL L16 L HL.00 HL HL HL L17 L HL.00 HL.00 HL.00 HL L18 L HL HL HL HL L19 L HL HL HL HL L20 L HL HL HL HL L21 L HL HL HL HL L22 L HL HL HL HL L23 L HL HL HL HL L24 L HL HL HL HL L25 L HL HL HL HL L26 L HL HL HL HL L27 L HL HL HL HL L28 L HL HL HL HL L29 L HL HL HL HL L30 L HL HL HL HL

10 TRUSS RATING AND ANALYSIS PROGRAM (TRAP V.6.2 ) PAGE117 SPAN DECK CANTILEVER TRUSS TABLE 15.1 ALLOWABLE FORCE SUMMARY FOR LOWER CHORD MEMBERS (L R F D) INVENTORY OPERATING POSTING POSTING MEMBER AASHTO AASHTO STA. VEH. SPE. TR. TENS. COMP. TENS. COMP. TENS. COMP. TENS. COMP L12 L L13 L L14 L L15 L L16 L L17 L L18 L L19 L L20 L L21 L L22 L L23 L L24 L L25 L L26 L L27 L L28 L L29 L L30 L

11 TRUSS RATING AND ANALYSIS PROGRAM (TRAP V.6.2) PAGE133 SPAN DECK CANTILEVER TRUSS TABLE 16.1 DL+LL+I RATING SUMMARY FOR LOWER CHORD MEMBERS (L R F D) INVENTORY OPERATING STATE STATE STATE SPECIAL SPECIAL MEMBER AASHTO AASHTO VEHICLE 1 VEHICLE 2 VEHICLE 3 VEHICLE 1 VEHICLE 2 MAX T & C MAX T & C MAX T & C MAX T & C MAX T & C MAX T & C MAX T & C L12 L L13 L L14 L L15 L L16 L L17 L L18 L L19 L L20 L L21 L L22 L L23 L L24 L L25 L L26 L L27 L L28 L L29 L L30 L

12 TRUSS RATING AND ANALYSIS PROGRAM (TRAP V.6.2) PAGE148 SPAN DECK CANTILEVER TRUSS TABLE 16.7 SUMMARY OF INVENTORY AND OPERATING RATING (L R F D) RATING ANALYSIS SUMMARY INVENTORY RATING RESULTS OPERATING RATING RESULTS RATING CRITICAL CONTROLLING RATING CRITICAL CONTROLLING FACTOR MEMBER LIVE LOAD FACTOR MEMBER LIVE LOAD.50 L 27 U 27 HL +.50 L 27 U 27 HL TABLE 16.8 SUMMARY OF POSTING VEHICLE RATING (L R F D) STATE VEHICULAR LOADING - T VEHICLE SAFE LOAD CRITICAL NAME CAPACITY MEMBER FACTOR 4S L 27 U 27 STATE VEHICULAR LOADING - T VEHICLE SAFE LOAD CRITICAL NAME CAPACITY MEMBER FACTOR 5C L 27 U 27 STATE VEHICULAR LOADING - T VEHICLE SAFE LOAD CRITICAL NAME CAPACITY MEMBER FACTOR 6T L 27 U 27 NOTE: For capacity less than force due to dead load, rating will be 0