engineering

Tour Trinity

Tour Trinity is a engineering topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Tour Trinity rather than just read about it. In short: Tour Trinity is an office skyscraper in the Courbevoie commune of the La Défense district in Paris. Built between 2016 and 2020, the tower stands at 157.2 m (516 ft) tall with 33 floors and is the 17th tallest building in Paris.

Key takeaways

Tour Trinity belongs to engineering; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Tour Trinity to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Tour Trinity from memory before moving on to harder problems.

Reference excerpt

Tour Trinity is an office skyscraper in the Courbevoie commune of the La Défense district in Paris. Built between 2016 and 2020, the tower stands at 157.2 m (516 ft) tall with 33 floors and is the 17th tallest building in Paris.

History The building was designed by the architecture firm Cro&Co Architecture, headed by French architect Jean-Luc Crochon. Its developer and promoter is Unibail-Rodamco-Westfield and its builder is Vinci SA. The project by the real estate company Unibail-Rodamco-Westfield was accepted by Epadesa on March 5, 2012, and the building permit was issued on June 7 of the same year. Rodamco also managed the construction of the Tour Majunga in partnership with the Center of New Industries and Technologies (CNIT). Epadesa signed the deed of sale on October 26, 2015, and work on the tower began in early 2016 for a planned delivery in 2020. The Trinity project benefits from a unique location. It sits above the traffic lanes (Avenue de la Division-Leclerc). It connects the CNIT and Coupole districts of La Défense via a 3,500 m2 (37,700 sq ft) landscaped plaza accessible to the public. The construction of public stairs and elevators will provide easy access to the plaza from street level. The Trinity Tower comprises a two-level reception area (the Dome and the CNIT) and 33 floors, reaching a height of 140 meters from the slab, or 151 meters from the natural ground level on its west facade, and 167 meters including the spire. The average office floor area is 1,600 m2 (17,200 sq ft) (usable floor area), for a total area of 48,929 m2 (527,000 sq ft) (including the shared corporate restaurant).

Architecture The Cro&Co Architecture agency, which designed the architecture of the Trinity Tower, envisioned it as an urban link between La Défense and Courbevoie by creating a total of 3,500 m2 (37,700 sq ft) of public spaces connecting the esplanade of La Défense to the Coupole slab and to the avenue de la Division Leclerc. The Trinity tower is aiming for HQE “exceptional” certification (the first office tower in France to reach the “very high performance” level on all 14 targets) and BREEAM “excellent”. Trinity incorporates several architectural innovations: An off-center core: Trinity's core is offset on the facade and enhanced with panoramic elevators. Outdoor spaces: tree-lined terraces, loggias and balconies are accessible along the entire height of the tower. Openings in the facade, which allow access to the open air on all facades. Bioclimatic facades that optimize the intake of natural light. A minimum clear height of 2.80 m on all floors. The landscape architect for the operation is Bas Smets.

Investments After the delivery of the Trinity tower in 2021, Unibail-Rodamco-Westfield, the tower's owner, moved its headquarters there. ENDMarch 2023The tower is 82% occupied. The occupants, besides Unibail-Rodamco-Westfield, are Covage, Altitude Infra, Linkt, Technip, Sopra Steria, Afflelou and Welkin & Meraki. END2024, Unibail-Rodamco-Westfield sells 80% of its shares in the tower to the Norwegian sovereign wealth fund Norges Bank Investment Management.

Miscellansous On Sunday, January 17, 2021, three-time world vice-champion of mountain bike trials, Aurélien Fontenoy, climbed the 33 floors of the Trinity Tower via the stairs. This sporting achievement was closely followed by around thirty journalists, as well as by a young boy named Noah, who, thanks to the Rêves association, was able to meet Aurélien Fontenoy. The feat was also followed by Riding Zone, who made a video on their YouTube channel retracing this sporting achievement.

Construction site chronology

See also List of tallest buildings in France List of tallest buildings and structures in the Paris region

References

External links

Tour Trinity at SkyscraperPage Tour Trinity at Structurae Trinity in Courbevoie at SKYDB

Illustrations

Worked examples

Example 1 — a first encounter with Tour Trinity

Start with the simplest possible case. Write down what Tour Trinity claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Tour Trinity before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Tour Trinity ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Tour Trinity

In research: Tour Trinity appears in engineering research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Tour Trinity in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Tour Trinity is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2020 establishments in France, 21st-century architecture in France, Buildings and structures completed in 2020, so understanding it makes those chapters shorter.
In everyday life: Look for Tour Trinity outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Tour Trinity in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Tour Trinity means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Tour Trinity out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Tour Trinity in simple terms?

Why does Tour Trinity matter?

Because it connects several engineering ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Tour Trinity?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Tour Trinity.