Decision-making on economic maintenance of earthquake-resistant reinforced concrete structures
It is necessary to repair or reinforce earthquake-resistant reinforced concrete structures during their service time since their safety performance may gradually deteriorate due to environmental factors such as concrete carbonation, steel erosion, natural aging, or earthquake damage. This paper adopts a benefit-cost analysis and puts forward an economic decision-making method on preventive maintenance, pre-earthquake reinforcement, and post-earthquake repair and dismantling of structures, with consideration to earthquake damage accumulation, natural aging, and durability damage. It is of crucial theoretical significance and application value to the decision-making on the maintenance of structures.
House Design Flood and Earthquake Resistant Recommender Application implementing Case-Base Content Filtering Algorithm
In this study we developed an application which can help the future and current residents of Marikina City, Architects and Engineers by providing a pre-defined Flood and Earthquake house design and infrastructure based on the National Structural Code of the Philippines.
 The application contains Geohazard Maps which are the Fault line Map, Flood Prone Areas Map and Zoning Map. Also the application will present the available lots within the Marikina City's Residential Zone. Along with recommendation of house designs, the estimated cost of the house will be calculated based on the standard budget estimates used by the Marikina City Planning Office.
 We implemented Case- Base Content Filtering algorithm for finding the best house design from user's input. The application will provide a pre-defined house designs based on user's input House Style, Lot size, Floor area and Number of Floors and present an available location within Marikina City's Residential Zone
Load model for bridge design code
The paper deals with the development of load model for the Ontario Highway Bridge Design Code. Three components of dead load are considered: weight of factory-made elements, weight of cast-in-place concrete, and bituminous surface (asphalt). The live load model is based on the truck survey data. The maximum live load moments and shears are calculated for one-lane and two-lane bridges. For spans up to about 40 m, one truck per lane governs; for longer spans, two trucks following behind the other provide the largest live load effect. For two lanes, two fully correlated trucks govern. The dynamic load is modeled on the basis of simulations. The results of calculations indicate that dynamic load depends not only on the span but also on road surface roughness and vehicle dynamics. Load combination including dead load, live load, dynamic load, wind, and earthquake is modeled using Turkstra's rule. The maximum effect is determined as a sum of the extreme value of one load component plus the average values of other simultaneous load components. The developed load models can be used in the calculation of load and resistance factors for the design and evaluation code.