This paper describes a survey of an engineering structure that required high precision results. It is intended as a case study, primarily for surveying students, though the application of the techniques may provide insight to a wider audience. The purpose of the survey was to monitor movements of a new arch bridge to better than ±1 mm. The coordinates of targets placed on the arch structure wer...

To investigate the reasonable range of inclination angle arch ribs, a spatial finite element method was employed based on concrete-filled steel tube (CFST) basket-handle through an bridge with span 360 m. A model established using Midas/Civil software, which verified actual data. The effects different rib angles were investigated under static loads. structural natural frequencies, linear elasti...

The tie cable of the half-through tied-arch bridge generally uses external prestressed cables, which need to be replaced regularly similarly cables and suspenders, but there is very little research in this area at present. Aiming a method replace for kind bridge, study takes third Lingjiang had damage cable, as an example. Based on whether temporary force-replacement structure, eight replacemen...

Another larger structure which is somewhat unusual is a 54-foot oolitic limestone arch bridge, carrying a stabilized gravel road 22 feet wide with a five-foot sidewalk on one side. This bridge spans McCormick's Creek a few hundred feet above the falls and carries the picnic ground road from the hotel to the Beech Grove area. This structure was built by the CCC camp which was located there for a...

Functionalities of wireless sensors to measure bridge dynamic behavior are maturing; dense measurements of large structures are expected to reveal details of the behavior of existing structures. Traffic-induced vibrations at an arch bridge, instrumented by 48 wireless smart sensors, were measured before and after seismic retrofit of the structure. The differences between the measured dynamic ch...

On the basis of original design Ruck Bridge by Mr. Lin Tongyan, this paper modifies single-amplitude curved cable-stayed bridge to be an elliptical ring main beam two-amplitude deck, with a duck-egg-shaped arch tower and spatial cable net four planes, form four-cable-plane two-amplitude-curve for canyon-river topography, so as improve structural stress performance curved-beam bridge, promote tr...