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Full-Text Articles in Engineering

Effects Of City Growth On Tall Building Cladding Fatigue, Hang You Dec 2020

Effects Of City Growth On Tall Building Cladding Fatigue, Hang You

Electronic Thesis and Dissertation Repository

As city develops there will be changes in the aerodynamic characteristics due to varying building surrounding and topology. For example, the city growth around a tall building can cause an increase in wind load due to venturi or wake effects or decrease due to sheltering effects depending on the type of surrounding. The densification of cities will also increase the turbulence level due to wake effects. In the present study, the implication of these changes on the aerodynamic forces on cladding connections is investigated. With increased fluctuations in the wind loads, the cladding connections will also experience stress fluctuations, which …


Experimental Study On Side Resistance Of Energy Pile In Winter-Mode Operation, Te-An Wang Aug 2020

Experimental Study On Side Resistance Of Energy Pile In Winter-Mode Operation, Te-An Wang

Theses and Dissertations

In the present work, the side resistance of an energy pile subjected to a significant number of thermal cycles in saturated Kaolin clay was investigated through small-scale pile tests, direct shear tests, and triaxial tests. Before applying compressive load, relative shearing displacement, or deviator stress, up to 36 cooling/heating cycles were performed on the soil-foundation interface and soil. The thermal cycle was below the average ground temperature in temperate zones to simulate the winter-mode operation. In small-scale pile tests, the long-term behavior of the pile was observed in terms of temperature distribution and pore water pressure in soil, and a …


Development Of Multi-Axial Fatigue Retrofits For Lock Gate Components, Logan Verkamp May 2020

Development Of Multi-Axial Fatigue Retrofits For Lock Gate Components, Logan Verkamp

Graduate Theses and Dissertations

Lock gates are essential infrastructure components to the United State (US) supply chain. They create large cost savings and environmental benefits when compared with traditional methods of transport (freight and rail). Because of the large quantity of goods and dependence on these shipping chains, the US economy can be drastically affected by an unexpected gate closure. Unfortunately, many lock gates within the US have reached or exceeded their designed life. Due to the intensity of cyclic loads and the environment, fatigue cracks have become a prominent issue. Developed cracks near the pintle region (a joint which the gate rotates and …


Comparision Of Fillet-Welded Base Plate Fatigue Design For Highway Support Structures With Laboratory Research Tests, William Shea Jan 2020

Comparision Of Fillet-Welded Base Plate Fatigue Design For Highway Support Structures With Laboratory Research Tests, William Shea

Williams Honors College, Honors Research Projects

There are many types of vertical structures along highways that serve unique purposes. These structures include traffic signs for directing, warning, or regulating traffic, luminaires for distributing and directing light, traffic signals supporting equipment such as traffic lights, and combination structures including any combination of the aforementioned structures. Highway support structures are typically fabricated from steel or aluminum and are designed to the guidelines and specifications of the AASHTO Standard Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic Signals. The structures are connected to a foundation by anchor bolts through a welded base plate. Often a cause …