Carl Ealy, Shesh Kalavar, & Raghu Satyanarayana. Federal Highway Administration

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1 Carl Ealy, Shesh Kalavar, & Raghu Satyanarayana Federal Highway Administration

2 DEVELOPMENT HISTORY FHWA recognized a need for a database in the early 80 s Database conceived and development started at that time Started collecting research quality data since that time

3 OBJECTIVES

4 OBJECTIVES Data repository for use by: States Universities Consultants Contractors Other Agencies Design Aid

5 TASKS INVOLVED Data Collection Database Design Interface Application Development

6 DATA COLLECTION Data includes Geotechnical soils data Foundations load test data Data put in hard copy format using standard forms Data input into the database

7 DATA COLLECTION: DATA SOURCES STATE DOT s UNIVERSITIES RESEARCH LABS FHWA SERVER FOREIGN SOURCES CONSULTANTS OTHER AGENCIES

8 DATABASE DESIGN AND APPLICATION DEVELOPMENT Data Modeling performed using ERWIN Database structured to follow RDBMS rules Database engine is SYBASE RDBMS Data INPUT and QUERY modules originally under client-server environment currently being ported to internet

9 TABLE DIAGRAM AND ENTITY RELATIONSHIPS SOILS INFO SITES SOILTEST LOCATIONS PROJECTS FOUNDATION INFO GROUND INSTRUMENTATION SOILTEST NAME SOIL LAYERS GENERAL FOUNDATION DATA RESULTS CPT DILATOMETER PRESSUREMETER STEP BLADE VANE SPT CONSOLIDATION PERMEABILITY DYNAMIC PROPERTIES LAB TESTS FOUNDTYPE FOUND DETAILS CONCCYL DRILLED HPILE MONOTUBE PIPE POLYCONC TIMBER STEPTAPR FOUND INSTR CONST DETAILS AUG/SCREW VIBRATED DRLCMDET DRIVEN CAPWAP METHODS LOADTEST LOADDATA INSTRUMENT READINGS ANALYSIS

10 DATABASE SUMMARY Over 1300 foundations Over 1500 load tests Over 2500 soil tests

11 DATABASE INTEGRITY Data input by providing controlled access Strict quality control observed before and after data input Database backed up periodically

12 DATABASE APPLICATIONS FOR THE INTERNET Run under any Operating System > Java Programming Language Minimize User Installation > Internet Browsers (Netscape, IE) Direct Data Input by States, etc. > Data Maintenance Application Data Access to Everyone > User Interface Application

13 USER INTERFACE APPLICATION FOR THE INTERNET

14 USER INTERFACE APPLICATION FOR THE INTERNET Developed Using JFC/Swing (Java) > Limited support by Browsers! Need to Use JVM from SUN > Download and Install Need Class Files from DFLTD Website > Download and Install DFLTD Website for Download Information > will post at

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36 Uses

37 USES Planning Locate existing site data Evaluate instrumentation alternatives Evaluate construction methods Evaluate alternative designs

38 USES Design Perform comparative analysis using FHWA tools Download data and analyze with user tools Obtain design alternatives

39 USES Research P t = f(v, φ, δ, γ, ω, c, l, d) P t P b

40 DATA MAINTENANCE APPLICATION FOR THE INTERNET

41 DATA MAINTENANCE APPLN: SYSTEM TECHNICAL ARCHITECTURE

42 DATA MAINTENANCE APPLICATION ARCHITECTURE

43 SUMMARY FHWA has Infrastructure in place to serve as central repository FHWA Systems compatible with latest IT developments FHWA Server can accommodate many databases (Why buy dozens of servers and software when one can share costs on one or two)

44 Questions & Suggestions