8 Aug GRLWEAP Fundamentals. 2. CONTENT. • Introduction. • Why, when and where wave equation. • Wave Equation Models: Hammer, Pile, Soil. s: GRLWEAP (PC’s). Hammer Performance Study. , FHWA Manual updates. Some important developments in. Dynamic Pile Analysis. 12 Jun Figure A typical driveability graph from GRLWEAP Goble Rausche Likins and Associates () GRL WEAP Wave Equation Manual;.

Author: Voodoolabar Voodoozshura
Country: New Zealand
Language: English (Spanish)
Genre: Art
Published (Last): 25 December 2010
Pages: 389
PDF File Size: 13.22 Mb
ePub File Size: 1.3 Mb
ISBN: 197-9-34610-890-8
Downloads: 66242
Price: Free* [*Free Regsitration Required]
Uploader: Sharisar

Grlweap manual the grlweap manual decade techniques have become available that can convert this very artistic approach to a scientific one.

These predictions, while still of limited reliability, are at least better than any other available approach. The goal of this study was to evaluate the performance of steel H-piles driven according to the specification under a variety of conditions.

WEAP: Wave Equation Analysis of Pile Driving, with SPILE, Estimation of Pile Ultimate Capacity

Goble A recent research project sponsored by the Federal Highway Administration produced a new wave equation computer program for the grlwezp of pile driving WEAP. Several years had passed since the TTI Program was developed, so it could be expected that other general improvements could be introduced into grlweap manual program for grlweap manual types of harmers.

What is the efficiency of the driving system? Early approaches used semi-empirical methods for making these predictions. Other information of interest on WEAP is given below. To find out more, including grlweap manual to control cookies, see here: Beginning with the work of Donnell manyal the early 20th Century the subsequent analytical and computational research is reviewed in some detail.

Grlweap manual and Viroj Mekagaroon University of Conneticut October The engineer requires reliable methods for predicting the capacity of piles as driven in the field.

No Results Found

In addition to pile impact hammers, the manual addresses the complete driving system to include cushions, helmets, and leads. It also contains a flow grlweap manual which may be grlweap manual interest to those users who want to study the program in greater detail. Each program is in a different directory in the grlweap manual file, to make it easy to keep them separate.

When reinforced or prestressed concrete piles are driven in easy driving, tension stresses are reflected from the pile tip back onto the downward traveling compression stresses.

What is the static bearing capacity of the pile grlweap manual observations taken during pile driving? Steel pipe and H section foundation piles typically are of sufficient length to be friction piles and exhibit set-up after the end of initial driving EOID.

Using an grlweap manual program, extract the files into the same directory. In addition a procedure will be discussed for calculating maximum tension stress using a closed form solution of a continuous model of the pile.

What are the stresses in the pile during driving? The third volume was prepared to aid the grlweap manual operator during the initial stages of program and data file loading. However, the critical tension stress location will not be at the gage location so the magnitude of maximum tension stresses cannot be readily determined. In this discussion of impact problems, the wave mechanics of grlweap manual continuous and discrete pile models are illustrated. While the primary purpose of developing this program was to provide a better model for diesel hammers a number of other grlweap manual were included and an extensive correlation study with dynamic measurements was made.

Consideration of the advantages and disadvantages of the method over ASD are considered. Is the pile structurally sound pile integrity?

Page not found – Civil and Environmental Engineering

The estimation of pile driving grlweap manual remains today a very inexact activity not greatly changed over the past half century. Since this change in specification was controversial, a research project was undertaken to investigate it at Case Western Reserve University under the sponsorship of grlweap manual Ohio Department of Transportation and the Federal Highway Administration. Grlweap manual difficulty occurs on the job and the piles cannot be efficiently manuzl, the typical result is quarrels hetween the contractor and the engineer, large cost overruns and litigation.


grlweap manual The contents of this grlweap manual report deal with background, models and applications of the Wave Equation. They were developed to answer one or more of the following questions: We present here WEAP87, the last freely released version of grlwdap program.

These measurements involving piles driven by all types of hammers have been made for several states including New York.

Entering Basic Soil grlweap manual Pile Properties — vulcanhammer. To load and start the programs do the following: Notify me of new grlwdap via email. It is possible today for a contractor to make rational predictions of driving resistance.

This device made possible routine measurements of the force wave grlweap manual the pile. If measurements are made they are usually made with glweap located near the pile top. Equipment selection is usually made on a completely subjective basis, with emphasis yrlweap on the use of driving systems owned by the contractor.

They used a program prepared by the Texas Transportation Institute. A recent research project sponsored by the Federal Highway Administration grlweap manual a new wave equation computer program for the analysis of pile driving WEAP.