engineering

Pui Tak Center

Pui Tak Center 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 Pui Tak Center rather than just read about it. In short: The Pui Tak Center (Chinese: 培德中心; Jyutping: pui4 dak1 zung1 sam1; Cantonese Yale: Pùihdāk Jūngsām; pinyin: Péidé Zhōngxīn; lit. 'cultivating virtue center'), formerly known as the On Leong Merchants Association Building, is a building located in Chicago's Chinatown. Designed by architects Christian S.

Key takeaways

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

Reference excerpt

The Pui Tak Center (Chinese: 培德中心; Jyutping: pui4 dak1 zung1 sam1; Cantonese Yale: Pùihdāk Jūngsām; pinyin: Péidé Zhōngxīn; lit. 'cultivating virtue center'), formerly known as the On Leong Merchants Association Building, is a building located in Chicago's Chinatown. Designed by architects Christian S. Michaelsen and Sigurd A. Rognstad, the building was built for the On Leong Merchants Association and opened in 1928. The Association used it as an immigrant assistance center, and the building was informally referred to as Chinatown's "city hall". In 1988, the FBI and Chicago Police raided the building as part of a racketeering investigation. The US federal government seized the building that same year. The building was purchased by the Chinese Christian Union Church (CCUC) for $1.4 million and renamed the Pui Tak Center in 1993. That same year, the On Leong Merchants Association Building was designated a Chicago landmark by the Commission on Chicago Landmarks. The CCUC spent $1 million raised from community donations to renovate and update the building's neglected interior. The Pui Tak Center now hosts various religious, community, and educational programs, such as English-as-a-Second-Language courses (ESL). In 2007, the Pui Tak Center won a $100,000 grant from the Partners in Preservation, a program sponsored by American Express and the National Trust for Historic Preservation. In preparation for the restoration work, the structural and architectural engineering firm Wiss, Janney, Elstner Associates completed an evaluation of the building's eastern and southern facades, focusing on its terra cotta portions. Restoration work began in spring 2009 and was completed in early 2010. Fully restoring the building's exterior terra cotta pieces and clay roof tiles is the first step in a long-range $2 million repair plan. In 2025, the building became Chicago's Chinatown's first to be listed on the National Register of Historic Places.

History

In 1912, Chinese businesses began relocating from the Loop to Chicago's South Side. Starting this trend, the On Leong Chinese Merchants Association appealed to deed-holder and former Illinois State's Attorney Jacob J. Kern to hire architect H. J. Swanson to design a building large enough to house 15 stores, 30 apartments and office space on the 200 block of West 22nd Street (now Cermak Road). Built in 1912 for $200,000, the building's design was typical of the period; however, it featured white tile trim adorned with Chinese dragons and a third floor balcony. The Association relocated to the building's third floor by 1914. In the 1920s, Chinese community leaders secured approximately 50 ten-year leases on properties in the newly developing Chinatown. Jim Moy, director of the Association, then decided that a Chinese-style building should be constructed as a strong visual announcement of the Chinese community's new presence in the area. With no Chinese-born architects in Chicago at the time, Chicago-born Norse architects Christian S. Michaelsen and Sigurd A. Rognstad were asked to design the On Leong Merchants Association Building in the spring of 1926. Moy decided to employ the pair again after Michaelsen and Rognstad's firm built Moy's Peacock Inn in Uptown in 1920. After studying texts on Chinese architecture, Michaelsen and Rognstad's final design was an example of Orientalism, a Western architect's interpretation of Chinese architectural forms. A good substitute for the liu li glazed ceramic found in traditional Chinese architecture, Rognstad designed exterior Teco sculptural accents, a type of terra cotta produced by Crystal Lake, Illinois's American Terra Cotta Company. When the building plans were announced in the Chicago Tribune on July 4, 1926, the building was called, "One of the most expensive and elaborate buildings ever erected in America by the Chinese". Construction began in 1926 and was completed a year later for the cost of $1 million. When the building opened in 1928, the On Leong Merchants Association used it as an immigrant assistance center that housed various meeting halls, a school, a shrine, and the Association's offices. It was often informally referred to as Chinatown's "city hall". In 1941, the On Leong Association offered Reverend John T.S. Mao space in the building to open St. Therese Chinese Catholic School, a Catholic grade school. By the 1950s, the school had become overcrowded, but it remained in the building until construction of a new, devoted school building was completed in 1961.

From seizure to landmark

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with Pui Tak Center

Start with the simplest possible case. Write down what Pui Tak Center 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 Pui Tak Center 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 Pui Tak Center 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 Pui Tak Center

In research: Pui Tak Center 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 Pui Tak Center 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: Pui Tak Center is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1927 establishments in Illinois, Armour Square, Chicago, Buildings and structures completed in 1927, so understanding it makes those chapters shorter.
In everyday life: Look for Pui Tak Center 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 Pui Tak Center in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Pui Tak Center 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 Pui Tak Center out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Pui Tak Center in simple terms?

Why does Pui Tak Center 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 Pui Tak Center?

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 Pui Tak Center.