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Record W616767544

ENGINEERED SCULPTURE : WITH A COMPLEX GEOMETRY, SUNDIAL PEDESTRIAN BRIDGE CASTS A TIMELY SHADOW

2005· article· en· W616767544 on OpenAlex
A Zeyher

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueRoads & bridges/Roads & bridges (Des Plaines, Ill. Online) · 2005
Typearticle
Languageen
FieldEngineering
TopicStructural Engineering and Vibration Analysis
Canadian institutionsnot available
Fundersnot available
KeywordsPylonBridge (graph theory)TrussEngineeringTowerCivil engineeringStructural engineering
DOInot available

Abstract

fetched live from OpenAlex

This article describes the construction procedure of the Sundial Bridge, located in Turtle Bay Exploration Park in Redding, California. This pedestrian bridge, which was designed by Santiago Calatrava, turned out to be a highly complex engineering project, as the elegant and artistic design did not prove to be conventional or inexpensive. The bridge is stayed by a single inclined pylon located on one side of the Sacramento River without any support located in the river itself (as this would interrupt the local salmon-spawning habitat). Although originally designed by Calatrava to be constructed parallel to the river then swung on axis in to place, the actual erection took place in a more conventional fashion with the pylon constructed first with the truss being cantilevered over the pylon and then attaching the cable stays. Despite numerous difficulties in the fabrication design (as each piece of the pylon would be differently shaped and welded accordingly), the logistical planning of getting the fabricated steel from the manufacturing site in Vancouver, Washington to the bridge location in Redding, and the $25 million cost being $10 million over-budget, the bridge has turned out to be a conceptual triumph. Although contractors found these difficulties challenging, the final product proved to be not only functional by connecting both sides of the park, but also aesthetically successful.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesMeta-epidemiology (narrow)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.300
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0020.002
Meta-epidemiology (broad)0.0020.001
Bibliometrics0.0010.002
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.021
GPT teacher head0.239
Teacher spread0.218 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it