Development of a tool for the design of cantilever-type precast prestressed concrete sheet piles.
Date of Publication
2001
Document Type
Bachelor's Thesis
Degree Name
Bachelor of Science in Civil Engineering
Subject Categories
Civil Engineering
College
Gokongwei College of Engineering
Department/Unit
Civil Engineering
Abstract/Summary
Sheet pile walls are widely used for both large and small waterfront structures, ranging from small pleasure-boat launching facilities to large dock structures where ocean-going ships can take on or unload cargo. A pier jutting into the harbor, consisting of two rows of sheet piling to create a space between that is filled with earth and paved, is a common construction. In addition, sheet piling is also designed for erosion protection purposes for stabilizing ground slopes, particularly for roads, for shoring walls of trenches and other excavations and for cofferdams.
Because of the versatility and relative economy of sheet piling, there has been increasing use of these walls as substitutes for the older types of retaining wall structures, which include the gravity wall and the cast-in-place reinforced concrete cantilever wall.
One of the commonly used types of sheet pile is the cantilevered precast prestressed concrete sheet pile. This kind of structure combines two basic materials-concrete and steel-to take maximum advantage of their characteristics: the compressive strength of concrete and the tensile strength of tendons. The economy comes from the fact that prestressing steel is six times stronger than ordinary steel, but costs only twice as much. Concrete for prestressing is twice as strong, but costs roughly only 15 to 25 percent more than ordinary concrete. Prestressing steel uses 75 percent less steel and 25 percent less concrete to attain equal or greater structural strength than the two materials are used separately in the conventional way. Thus using this technology, we can create a structure of a longer span with shallower depths.
Precasting points out to speed of construction, that is being capable of mass production of prestressed units done ahead or simultaneously with jobsite work. Added to that, weather does not delay plant production and erection of prefabricated members is even faster.
The analysis and design of sheetpiles can be time consuming and critical, often which requires a really combined competent geotechnical and structural engineer.
It has been a current trend to incorporate computer applications to civil engineering work. There are lots of commercially available computer programs for the analysis and design of various civil engineering structures. These include STAAD and MICROFEAP, among others. Computers are not prone to computational errors, thus eliminating human errors. Using them saves the precious time spent for manual calculations because computers can finish computations within minutes, which would otherwise take hours for person utilizing manual calculations. It is this reason why a computer program for the analysis and design of cantilevered precast prestressed sheet pile walls can be very useful.
Abstract Format
html
Language
English
Format
Accession Number
TU10494
Shelf Location
Archives, The Learning Commons, 12F, Henry Sy Sr. Hall
Physical Description
69 numb. leaves ; Computer print-out.
Keywords
Precast concrete construction; Precast concrete construction
Recommended Citation
Damondamon, R., Hernandez, C. B., & Navarro, L. A. (2001). Development of a tool for the design of cantilever-type precast prestressed concrete sheet piles.. Retrieved from https://animorepository.dlsu.edu.ph/etd_bachelors/10284
