详情

原文传递 Evaluation of Experimental Bridge: Massman Drive Bridge in Davidson County.

题名：	Evaluation of Experimental Bridge: Massman Drive Bridge in Davidson County.
作者：	burdette, e. g. deatherage, h. goodpasture, d. w.
关键词：	plate girders, kicker wedge plate, splice plates, strain gages, integral abutment, dead loads
摘要：	The research described in this Final Report involved the instrumentation, testing, and analysis of data for a two-span experimental bridge on Massman Drive over Interstate 40 between Briley Parkway and Spence Lane in Nashville, Tennessee. The new two-span Massman Drive Bridge has a total bridge deck length of 287ft. The distance between bearing centerlines at the abutments is 284ft. with 138.5ft. and 145.5ft. spans to the north and south, respectively. The bridge was constructed as two simple spans designed to act as a continuous bridge under the dead load of the concrete deck, a design that combines the construction economy of simple span bridges and the structural economy of continuous bridges. This continuity was provided by a connection between girders at the center pier consisting of plates bolted to the top (tension) flanges and kicker wedge plates inserted between the bottom flanges of the girders. There were two objectives to the research. The primary objective was to evaluate the effectiveness of the connection at the center pier in providing continuity under the dead load of the deck. This objective is dealt with in detail in this Final Report. A secondary objective was to obtain strain gage data under the action of a loaded dump truck both before and after the casting of the bridge rails. These data are expected to be used later to study the lateral distribution of live load to the five girders. The principal conclusion drawn from the research on the Massman Bridge was that continuity over the pier under the dead load of the freshly cast deck was provided. Even though the data showed that slightly less than full continuity was achieved in one outside girder, the overall conclusion is that the method works; the bridge may reasonably be designed as a continuous bridge under the weight of the concrete deck.
总页数：	u0703；74p
报告类型：	科技报告