Purpose: The purpose of this study was to determine patterns of social interaction in stalls and to determine the behavior of buyers. Research Methodology: The research method used is descriptive qualitative method. Data collection was carried out by participant observation, namely researchers involved in direct interactions with data sources in the field and by observing daily activities at four stalls in Pulogebang Village and researchers also conducted interviews with eight informants. Results: The results of this study show that social interactions that occur in stalls are not only in terms of buying and selling, but there are other conversations outside the context of buying and selling. The interactions that occur in the warung can be associative (cooperation, accommodation, assimilation) and dissociative (competition, contradiction, conflict). As well as the behavior of customers in the Pulogebang Village stalls is a positive behavior in social life. Contribution: This research is expected to be useful for the development of sociology, and can add to the knowledge of sociologists about social interaction, besides that it can help stall visitors and sellers be aware of the importance of good social interaction with the community.

<p>Indonesia is a country that is a often hit by disasters, this is due to the meeting of 4 tectonic plates of the earth. The city of Padang is right at the meeting between the Indo-Australian plate and Eurasia so that it puts the city of Padang as one of the cities prone to earthquakes. This research analyzes the type C hospital building that was originally designed in the Medan city location to be designed in Padang city with the aim to determine the strength of the structure and the need for the width of the column reinforcement in the building. The first step is to determine the spectral response value of the Padang region earthquake, a short period of 0.2 seconds Ss = 1,289 g and a period of 1 second S1 = 0.549 g. Second is calculating dead load, live load and static earthquake load equivalent to SNI 03-1726-2012 and force output in using ETABS software, and third is calculating the column reinforcement area requirements. The results of the analysis show that the width of the column reinforcement there is a difference = 4750.00 mm against field data = 6801.24 mm in the dimensions of the column 500 mm x 500 mm with a value of = 2051.24 mm and an increase in the value of the calculation reinforcement area in the 700 mm column x 700 mm is = 9800.00 mm from the field data = 9068.32 mm with a selection = 731.68 mm.</p>