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"This book reports on a comprehensive analytical, experimental and numerical study on the flexural response of post-tensioned masonry walls under in-plane loads. It explores an important mechanism in this new generation of structural walls, called “Self-centering”. This mechanism can reduce residual drifts and structural damage during earthquake ground motion, and is particularly favorable for structures which are designed for immediate occupancy performance levels. The book reports on the development and verification of a finite element model of post-tensioned masonry walls. It describes a detailed parametric study to predict the strength of post-tensioned masonry walls. New design methodologies and expressions are developed to predict the flexural strength and force-displacement response of post-tensioned masonry. Experimental study is carried out to better understand the behavior of post-tensioned masonry walls and also to evaluate the accuracy of the proposed design procedure and expressions. The book also includes an introduction to current research on unbounded post-tensioned masonry walls, together with an extensive analysis of previously published test results."

"Kerusakan pada tiang beton dan tiang baja yang disebabkan selama konstruksi ataupun setelah konstruksi dapat secara serius mempengaruhi kemampulayanan dari suatu struktur bangunan. Uji pembebanan statik dapat mengecek asumsi kapasitas rencana dari pondasi tiang. Namun, hal tersebut sangat mahal dan banyak memakan waktu jika metode tersebut digunakan untuk mengecek keutuhan dari tiang. Metode Non-destructive terkini berdasarkan teknik low strain impulse dapat secara cepat dan ekonomis mengecek keutuhan seluruh pondasi tiang di lapangan. Metode ini menggunakan sinyal dari hasil tumbukan antara palu dengan kepala tiang. Pantulan gelombang tegangan dari ketidakseragamanan tiang atau kaki tiang diamati pada kepala tiang melaui akselerometer, diproses dan diinterpretasikan oleh engineer berpengalaman. Dalam penelitian ini, tiang beton dan baja diujicoba dengan menggunakan metode ini dengan menggunakan alat yang dinamakan Pile Integrity Tester (PIT) hasilnya akan diinterpretasi dan dianalisa.

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Defect in concrete and steel piles caused either during or after construction may seriously affect their performance on a structure. Load testing of piles may be used to check the assumption adopted in the load capacity design of the piles. However, it is too expensive and time consuming to use load testing as a means of checking pile's integrity. Modern non-destructive method based on small strain impulse technique enable the integrity of all the pile on a site to be established rapidly and economically to enhance greatly confidence in the foundation. The method uses signals from a hand held hammer impacting the pile top and generating a compressive stress wave in the pile. Stress wave reflection from non-uniformities or the pile toe are observed at the pile top, processed and interpreted by the experienced test engineer. In this research, Steel and Concrete Pile are test with this method using equipment called Pile Integrity Tester then the result interpreted and analyzed."

"This work intertwines the intuitive chareography of the hand that forms matter and the logical mind that constructs, assembles and imagines structural complexity. The work described in this book is the product of collaboration of ideas, attitudes and philosophy."