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ABSTRACT Taiwan is located at the seismic belt around Pacific Ocean. Earthquake occurs with high frequency and all kinds of degrees of typhoons also attack Taiwan almost every year. It causes serious destruction to the wharf structure. To ensure the safety of wharf structure subjected to earthquake and waves, a better knowledge about the interaction between structure and soil behavior is important. Not only is the interaction of solid and fluid concerned, but also the radiation condition of soil extending to infinite domain is considered. First, the research establishes the mass matrix and the stiffness matrix of dynamic equation, then applied to harbor system with the consistent infinitesimal finite element cell method. To efficiently simulate the radiation condition of soil the theory of similarity is employed. In reality, energy passes outward with soil extension, and changes every time. So we must calculate the value of energy passing on boundary at any time. Finally, adding the force of earthquake to the external force, the dynamic analysis is carried out in time-domain by using Newmark method.

Serving as critical gateways for international trade, seaports are pivotal elements in transportation networks. Any disruption in the activities of port infrastructures may lead to significant losses from secondary economic effects, and can hamper the response and recovery efforts following a natural disaster. Particularly poignant examples which revealed the significance of port operations were the 1995 Kobe earthquake and 2010 Haiti earthquake in which liquefaction and lateral spreading of embankments imposed severe damage to both structural and non-structural components of ports. Since container wharf structures are responsible for loading and unloading of cargo, it is essential to understand the performance of these structures during earthquakes. Although previous studies have provided insight into some aspects of the seismic response of wharves, limitations in the modeling of wharf structures and the surrounding soil media have constrained the understanding of various features of the wharf response. This research provides new insights into the seismic behavior of wharves by using new and advanced structure and soil modeling procedures to carry out two and three-dimensional seismic analyses of a pile-supported marginal wharf structure in liquefiable soils. Furthermore, this research investigates the interaction between cranes and wharves and closely assesses the role of wharf-crane interaction on the response of each of these systems. For this purpose, the specific effect of wharf-crane interaction is studied by incorporating advanced models of the crane with sliding/uplift base conditions. To reduce the computational time required for three-dimensional nonlinear dynamic analysis of the wharf in order to be applicable for probabilistic seismic demand analysis, a simplified wharf model and an analysis technique are introduced and verified. In the next step probabilistic seismic demand models (PSDMs) are generated by imposing the wharf models to a suit of ground deformations of the soil embankment and pore water pressure generated for this study through free-field analysis. Convolving PSDMs and the limit states, a set of fragility curves are developed for critical wharf components whose damage induces a disruption in the normal operation of ports. The developed fragility curves provide decision makers with essential tools for maximizing investment in wharf retrofit and fill a major gap in seismic risk assessment of seaports which can be used to assess the regional impact of the damage to wharves during a natural hazard event.

In this study, a new vector form intrinsic finite element (VFIFE) for the plate is developed and applied to study the responses of a traditional plate member applied to engineering structures. The VFIFE method is a solution procedure for the mechanic problems by adopting the traditional co-rotational explicit finite element method developed by Belyschko and Hsieh (1973). Three different shape-functions including the simplest polynomial form shape-function (Poly), non-conforming area coordinate shape-function (BCIZ) and the conforming area coordinate shape-function (BCIZC) are utilized to simulate the displacement field of the plate. For a system with nonzero rigid-body displacement, the equilibrium will be difficult to achieve in the global coordinate system when the traditional finite element method is applied. By separating the rigid-body motions from the deformed motions, this problem can be easily taken care. In numerical examples, the accuracy and efficiency of this new developed vector form intrinsic finite element for plate simulation are also examined. It is found that compared to the analytical solution, the accuracy is excellent, while compared to traditional finite element method, the efficiency is also encouraging. This new VIFIFE plate element was also applied to the analysis for the sheet plate members in the harbor structures such as the sheep-pile wharf structural system. It was found that not only can the global behaviors of the pile be clearly observed but also local variations in deformations of the steel sheet are clearly shown.

Thesis (M.B.A.)--University of Hong Kong, 1996. / Includes bibliographical references.

This thesis examines the pivotal role of port infrastructure in supporting offshore wind project development, with a focus on the strategic significance of port operation and storage. This study addresses the challenges of evaluating port area demand, complicated by the intricate and dynamic nature of the construction and logistical operations associated with offshore wind development. Through a comprehensive approach that includes a literature review on diverse roles of ports, analysis of port operations for key turbine components, and formulation of an assessment model to estimate port area demand, this research offers insights into the logistical and operational needs of ports in the offshore wind sector. A significant highlight of this study is the consideration of the temporal influence on port demand, a crucial factor stemming from the continuous loading and unloading activities at the port. In addition to port terminal area, hard criteria such as water depth, quay length, and load-bearing capacity are also examined. The findings underscore the connection between port infrastructure and the efficient operation of offshore wind farms. It highlights the need for synchronized coordination between the transport rate of components and offshore installation activities, to meet the specific demands of port infrastructure. Furthermore, the thesis explores these findings in the context of port development, identifying key requirements, challenges, and opportunities within the sector and offering a forward-looking perspective on the industry. This perspective considers the emerging trends, technological advancements, and innovative practices in offshore wind and their implications for port development. In conclusion, the research emphasizes the critical importance of understanding and meeting port specification requirements for the successful execution of offshore wind projects. It calls for continuous research and development efforts to improve the accuracy of estimating port infrastructure enhancement needs, in support of the growing offshore wind industry.

Cultural and Public Center is located on the dam in Brno dock, addressing the promenade between the marina and Kozí Horka, starting points and bicycle path , and include marine terminal and a natural amphitheater with a restaurant. Promenade is the multilevel net of wheelchair interconnected trails and green spaces with objects of public amenities covered by reinforced concrete shell structure with walkable green roof and with color features as landmarks. The building of the cultural center is fitted in the field wave that rises and opens towards the audience. The back part of the building is composed by field wall with employees' inputs, which forms a barrier between the amphitheater and the bike path behind the building. The object reacts to different heights of promenade's trails by Raumplan arrangement. It is divided into performers' background with store of properties, public toilets and restaurant facilities. The supporting structure is a monolithic reinforced concrete wall system in module 4 m, which carry exposed reinforced concrete shell structure with walkable green roof. The main walls are rotated by 5 °. Overall height ranges from 2700 mm to 4750 mm and headroom ranges from 2300 mm to 3800 mm according to the curved shell structure. Nationwide building foundation by the base plate with circumferential bands into the frost resistant depth is affected by bottom water pressure.