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 Analysis of Piled Rafts   by the program ELPLA   Today, nearly every engineering office has its own computer programs for the analysis and design of piled rafts. Furthermore, most of the available programs under Windows are user-friendly and give very excellent output graphics with colors. Consequently, theoretically a secretary not an engineer can use them. But the problem here is how can man control the data and check the results. The purpose of this book is to present methods, equations, procedures and techniques used in the formulation of the computer analysis of piled rafts. These items are coded in the program ELPLA.   This book contains many practical problems which are analyzed in details by using the program ELPLA. It is important for the engineer to be familiar with this information when carrying out computer analysis of piled rafts. An understanding of these concepts will be of great benefit in carrying out the computer analysis, resolving difficulties and judging the acceptability of the results. Three familiar types of subsoil models (standard models) for piled raft analyses are considered. The models are Simple Assumption Model, Winkler’s Model and Continuum Model. In the analysis, rafts are treated as elastic or rigid. In this book the Finite Element-Method was used to analyze the raft, in which plate bending elements represent the raft according to the two-dimensional nature of foundation. The development of the finite element equations for plate elements is well documented in standard textbooks such as Schwarz (1984) and Zienkiewicz/ Cheung (1970). Therefore, it is not duplicated in this book. Created Size Downloads 2015-10-253.05 MB1,630
 Reinforced Concrete Design HOT

## Reinforced Concrete Design Examples

This book shows how to use ELPLA to design foundation through the following examples.

Example 1: Design of a square footing for different codes

Example 2: Design of a square raft for different soil models and codes

Example 3: Design of a raft of high rise building for different soil models and codes

Example 4: Design of a circular raft for a cylindrical core

Example 5: Comparison between flat and ribbed rafts

Example 6: Design of trapezoidal footing

Example 7: Design of a group of footings with and without tie beams

Created
Size
2016-09-25
15.25 MB
1,900
 Analysis of Piled Rafts by the program ELPLA (German)   Berechnung von Pfahl-Plattengründungen   mit dem Programm ELPLA   Heute hat fast jedes Ingenieurbüro seine eigenen Computerprogramme zur Berechnung und zum Entwurf von Pfahl-Plattengründungen. Dazu sind die meisten verfügbaren Programme unter Windows benutzerfreundlich und bieten ausgezeichnete graphische Farbdarstellungen, sodass theoretisch eine Sekretärin, nicht nur ein Ingenieur, diese verwenden kann. Aber das Problem dabei ist, wie man die Daten kontrollieren und die Ergebnisse überprüfen kann.   Der Zweck dieses Buches ist, Methoden, Gleichungen, Verfahren und Techniken zu zeigen, die bei der Formulierung der Computerberechnung von Pfahl-Plattengründungen verwendet werden. Diese Sachgebiete sind im Programm ELPLA codiert.     Dieses Buch zeigt viele praktische Probleme, die mit Verwendung des Programms ELPLA be­rechnet werden können. Es ist wichtig, dass der Ingenieur mit diesen Informationen vertraut ist, wenn er Computerberechnungen von Pfahl-Plattengründungen durchführt. Ein Verständnis dieser Konzepte ist von großem Nutzen beim Ausführen der Computerberechnung, zur Lösung von Schwierig­keiten und zur Entscheidung der Annehmbarkeit der Ergebnisse. Drei bekannte Baugrund­modelle zur Berechnung von Pfahlplatten (Standardmodelle) werden berücksichtigt. Die Bau­grundmodelle sind Einfaches Annahme-Modell (Spannungstrapezverfahren), Winkler-Modell (Bettungsmodulverfahren) und Kontinuum-Modell (Steifemodulverfahren). In der Berechnung werden die Platten als elastisch oder starr behandelt. In diesem Buch wird die Finite Element-Methode verwendet, um Platten zu berechnen. In der finiten Elementberechnung wird die Platte von Plattenelementen entsprechend der zweidimensionalen Natur des Fundaments dargestellt. Die Entwicklung der finiten Element­gleichungen für Plattenelemente ist in Standardlehrbüchern dokumentiert wie bei Schwarz (1984) und Zienkiewicz/ Cheung (1970). Sie wird deshalb nicht in diesem Buch dupliziert. Created Size Downloads 2015-10-253.45 MB179
 Tarut Bridge is a bridge on the road connecting between Tarut island and Qatif city, Saudi Arabia. The bridge is 30.5 [m] wide over 9 spans in the Gulf, each is 25 [m]. Location: The bridge links Nasriya ward with Qatif and Mishari Quarter with Tarut Island, 500 m long in sea 4.9 m above the sea surface. Type of foundation:  Water level foundation on large diameter piles Cost: SR 100+ million     Ahmad Al Mousa Office for Engineering Consultations, Dammam, Saudi Arabia Created Size Downloads 2016-04-0913.78 MB540
 كتاب قدرة تحمل وهبوط الخوازيق Theory for the calculation of bearing capacity of piles by ELPLA     يعتمد تصميم الخوازيق التي يزيد قطرها عن 60سم و المنفذة بواسطة التثقيب الاعتيادي و المصبوبة في مكانها         (bored piles) على مقدار الهبوط, حيث يتم تقدير علاقة الحمل مع الهبوط من نتائج تجربة تحميل. و في حالة عدم توافر نتائج تجربة تحميل يمكن الرجوع إلى المواصفات المحلية أو العالمية التي تقدر هذه العلاقة من علاقات وضعية نتيجة الخبرة العملية و الدراسات الإحصائية لتلك العلاقة من اختبارات عدة لظروف متعددة. وفي الغالب يكون الهبوط مقدرا كنسبة من قطر كعب الخازوق. وتقسم هذه العلاقات للخوازيق في حالتين أساسيتين وهما الأولى عندما تكون الخوازيق مخترقة تربة متماسكة الحبيبات (طينية صرفة) والثانية في تربة مفككة الحبيبات (رملية صرفة). في هذا الكتاب يتم عرض هذه العلاقة مقدرة في أثنين من المواصفات المحلية والعالمية: 1- قدرة تحمل وهبوط الخوازيق المنشأة بالتثقيب طبقاً للكود المصري 2- قدرة تحمل وهبوط الخوازيق المنشأة بالتثقيب طبقاً للمواصفات الألمانية DIN 4014 وذلك لفهم الفروق بينهما. تم في آخر هذا الكتاب وضع أمثلة محلولة يدويا وتم التحقق من النتائج باستخدام برنامج ELPLA Created Size Downloads 2017-07-021.96 MB223

# by the Program Quick ELPLA

Various problems in geotechnical Engineering can be investigated by the program Quick ELPLA. The original version of the program Quick ELPLA in the ELPLA package was developed to calculate the settlement and bearing capacity of single pile and pile wall according to DIN 4014 (edition 03/1990) and to draw the results in diagrams according to the German Code. Further development the program to meet the needs of practice. The development includes the interpolation between the values of Tables 1, 2, 4 and 5 of the German standard DIN 4014. User friendly interface for defining data or present results is also developed. Furthermore, many changes were carried out to the graphical output.

Created
Size
2017-08-27
1.04 MB
171

# by the Program Quick ELPLA (GERMAN)

Various problems in geotechnical Engineering can be investigated by the program Quick ELPLA. The original version of the program Quick ELPLA in the ELPLA package was developed to calculate the settlement and bearing capacity of single pile and pile wall according to DIN 4014 (edition 03/1990) and to draw the results in diagrams according to the German Code. Further development the program to meet the needs of practice. The development includes the interpolation between the values of Tables 1, 2, 4 and 5 of the German standard DIN 4014. User friendly interface for defining data or present results is also developed. Furthermore, many changes were carried out to the graphical output.

Created
Size
2017-08-27
1.1 MB
72
 Consolidation Settlement by the  Program Quick ELPLA   This book describes the essential equations to obtain the nonlinear stress distribution in the soil. Consequently, the consolidation settlement of different shapes of loadings on consolidated clay deposits can be estimated. The solution depends on closed-form equations for determining the stress and consolidation settlement in the soil. Created Size Downloads 2017-09-061.69 MB209

# by the Program Quick ELPLA

This book describes the essential equations used in Quick ELPLA to obtain stresses in soil with some verification examples. The problems of stresses in soil outlined in this book can be also analyzed by the program ELPLA and the same results can be obtained. Quick ELPLA is a simple user interface program and needs little information to define a problem. It is prefer to use it for a simple foundation geometry. Furthermore, ELPLA can also read data files of a problem of stress in soil defined by Quick ELPLA. User can analyze the problem again by ELPLA.

Although the numerical procedure outlined here is valid for loaded areas of any arbitrary shape, but only the two special cases of loaded areas; rectangular and circular, in addition to the point load are taken into consideration.

Created
Size
2017-09-28
3.04 MB
188
 Degree of Consolidation (Constant, Variable, and Cyclic Loadings) by the   Program Quick ELPLA     This book describes procedures and methods available in Quick ELPLA to analyze the problem of time-dependent consolidation of clay. The methods consider various analysis aspects of the consolidation problem such as, among others: uniform and time-dependent loading, cycling loading, nonlinear compressibility parameters, multi-layered soil, normal- and over-consolidated clay. The initial applied stress on the clay layers may be considered non-uniform. Created Size Downloads 2017-10-063.54 MB220
 Consolidation of Rigid Raft   by the Program Quick ELPLA   The book describes the essential equations used in Quick ELPLA to obtain the final consolidation settlement and contact pressure of a rigid raft with some verification examples. The problems of consolidation settlement of rigid raft outlined in this book can be also analyzed by the program ELPLA and the same results can be obtained. Quick ELPLA is a simple user interface program and needs little information to define a problem. It is prefer to use it for a simple foundation geometry. Furthermore, ELPLA can also read data files of a rigid consolidation problem defined by Quick ELPLA. User can analyze the problem again by ELPLA. Created Size Downloads 2017-10-116.11 MB206
 Stress Coefficients According to GEDDES   by the Program Quick ELPLA   This book describes the essential equations used in Quick ELPLA to obtain stresses in soil due to applied load below the ground surface according to GEDDES with some verification examples. Besides, the book presents some pile foundation problems solved by hand calculation using GEDDE'S solution. Created Size Downloads 2017-12-011.07 MB84