Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Collision protection facilities in a harbor are mainly used to absorb the huge impact energy when a ship is berthing, thus reducing the impact force and preventing collision between hydraulic structures and the body of the ship. Depending on the stress and the service requirements of the impact prevention facilities, these must have enough elasticity to absorb the kinetic energy of the ship impact and to resist tangential forces. At the same time, they should be wearable and cost-efficient. Berthing piles are one of the major impact-prevention types adopted in port structures. In this method, the piles are arranged directly in front of the structure to undertake impact forces from ships. To this date, the berthing piles in China and overseas are mainly made of steel, and there is little application of prestressed reinforced concrete berthing piles because little research has been conducted on their deformation behavior and energy absorption effects. Based on tests on six post-tensioned concrete berthing piles and a large amount of theoretical computations, we have studied the service performance of prestressed concrete berthing piles. This research work focused on factors that affect the service performance of the prestressed concrete berthing piles, such as concrete strength, pre-tensile stress, sectional reinforcement, cracking characteristics, ultimate bearing capacity and absorption of energy. On the basis of this research, the optimal sectional design of prestressed concrete berthing piles has been obtained. The research contents are as follows: 1. The work performance at service load and ultimate load; 2. The relationship between load and deflection at different loading levels; 3. Crack characteristics and crack closing performance of the berthing piles; 4. Effects of concrete strength on the strain energy of the berthing piles; 5. Effects of pre-tensile forces on the strain energy of the berthing piles 6. Types of stirrups and sectional reinforcement; and 7. The relationship between absorbed energy, ...
Collision protection facilities in a harbor are mainly used to absorb the huge impact energy when a ship is berthing, thus reducing the impact force and preventing collision between hydraulic structures and the body of the ship. Depending on the stress and the service requirements of the impact prevention facilities, these must have enough elasticity to absorb the kinetic energy of the ship impact and to resist tangential forces. At the same time, they should be wearable and cost-efficient. Berthing piles are one of the major impact-prevention types adopted in port structures. In this method, the piles are arranged directly in front of the structure to undertake impact forces from ships. To this date, the berthing piles in China and overseas are mainly made of steel, and there is little application of prestressed reinforced concrete berthing piles because little research has been conducted on their deformation behavior and energy absorption effects. Based on tests on six post-tensioned concrete berthing piles and a large amount of theoretical computations, we have studied the service performance of prestressed concrete berthing piles. This research work focused on factors that affect the service performance of the prestressed concrete berthing piles, such as concrete strength, pre-tensile stress, sectional reinforcement, cracking characteristics, ultimate bearing capacity and absorption of energy. On the basis of this research, the optimal sectional design of prestressed concrete berthing piles has been obtained. The research contents are as follows: 1. The work performance at service load and ultimate load; 2. The relationship between load and deflection at different loading levels; 3. Crack characteristics and crack closing performance of the berthing piles; 4. Effects of concrete strength on the strain energy of the berthing piles; 5. Effects of pre-tensile forces on the strain energy of the berthing piles 6. Types of stirrups and sectional reinforcement; and 7. The relationship between absorbed energy, ...
Test and Theoretical Researcj of Prestressed Concrete Berthing Piles
Xu, Xibin (Autor:in)
01.03.2006
Xu , X 2006 , Test and Theoretical Researcj of Prestressed Concrete Berthing Piles . BYG-Rapport , no. R-139 , Technical University of Denmark , Kgs. Lyngby .
Buch
Elektronische Ressource
Englisch
DDC:
690
Test research on vertical prestressed concrete berthing piles
| British Library Conference Proceedings | 2001
Test research on vertical prestressed concrete berthing pile
| British Library Conference Proceedings | 2001
| Engineering Index Backfile | 1962
| Engineering Index Backfile | 1968
| Engineering Index Backfile | 1962