![]() ![]() The cookie stores information anonymously and assigns a randomly generated number to recognize unique visitors. The _ga cookie, installed by Google Analytics, calculates visitor, session and campaign data and also keeps track of site usage for the site's analytics report. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. It does not store any personal data.Īnalytical cookies are used to understand how visitors interact with the website. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The JSESSIONID cookie is used by New Relic to store a session identifier so that New Relic can monitor session counts for an application. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. ![]() Additionally, at the area of the collapse, a number of plaster wads with poorly integrated fiber reinforcing were observed, making these individual wads inherently weak and more vulnerable to loss of strength (and failure) over time. The material’s progressive loss of strength led to failure of individual plaster wads-essentially, failure of one wad increased the loads applied to the adjacent ones. The fiber is a natural product and loses strength over time as it dries out. This indicated the failure was caused by breakage of the plaster wads as a result of the jute’s tensile failure. The investigation revealed breakage occurred within each wad, rather than at the point where the wads are adhered to the panels or tied to the steel framing. Itle After the partial collapse, the plaster wads in the area of failure were observed to be fractured in many cases, the embedded fibers were not well-integrated with the plaster (arrow). An area of intact plaster, showing the connection system (plaster wads) and ornamental ceiling panels below. When the wads dried, they provided a rigid structural support for the panels. During construction, the wet plaster wads were applied to connect the suspended plaster panels with the steel structure. The plaster wads are hand-formed tube-shaped elements, reinforced with jute fibers. Large portions of the ornamental ceiling consist of pre-molded plaster panels reinforced with fiber (without lath), supported by plaster wads wrapped around the primary steel channels. The plaster ceiling was found to be supported on a network of steel channels suspended from the structural concrete floor slab above. No building-wide structural distress, moisture infiltration, or outside cause was observed or reported that could have led to the collapse.Īfter emergency stabilization measures shored the remaining ceiling in place, an investigation was conducted at the collapse location as well as intact ceiling areas. The next day, a 4.6 x 12.2-m (15 x 40-ft) section of the ceiling had fallen 7.6 m (25 ft) to the floor below. However, one morning, cracks were noticed in the ceiling, so the corridor was roped off. Savant's premium home automation systems offer personalization features that make the difference between a smart home and a Savant Home.Īllows for a flush install of the DOR-HDSMKB inside plaster board or similar where a fully enclosed back box is not required,īasic warranty period is two (2) years excluding misuse defined as abuse, accidental damage, modifications, improper wiring, improper repair, incorrect repair, and operation outside specified operating temperatures and humidity.David Patterson, AIA, Deborah Slaton, and Kenneth Itle, AIAĪ 1920s neo-Classical building’s ornamental plaster ceilings were a source of wonder and pride to the office workers who passed through the corridors each day. We've become the home automation brand of choice for the world's most luxurious homes, castles, and even yachts. Over the years, our technology has evolved and our company has grown, but our goal remains the same. As the first home automation company to embrace mobile technology, we understood early that the customer experience could extend beyond the home and open new possibilities for control. ![]()
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