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Comments 3 Email Share Tweet 9 0 CONCRETE RISKS After the deadly collapse of two concrete office buildings in the 2011 Christchurch quake, officials launched a sweeping seismic review and are drafting aggressive regulations. By Rong-Gong Lin II and Rosanna Xia October 12, 2013 , 11:03 a.m. Member Center Alerts & Newsletters Jobs Cars Real Estate Rentals Weekly Circulars Local Directory Place Ad LOCAL LOCAL U.S. WORLD BUSINESS SPORTS ENTERTAINMENT HEALTH STYLE TRAVEL OPINION SHOP TRENDING NOW GOVERNMENT SHUTDOWN DRY ICE BOMBS DODGERS SMARTWATCHES GOLDEN GLOBES BART STRIKE Search How a New Zealand earthquake led to building reforms 27 The 6.3 magnitude earthquake that devastated Christchurch, New Zealand, in 2011 toppled buildings, upended roads and even liquefied the ground under some communities, causing them to sink. The historic city saw the soaring brick spire of the ChristChurch Cathedral topple and another 19th century landmark church crumble to the ground. But residents were stunned to learn that two-thirds of the 185 people killed in the city were in two more modern, seemingly solid concrete office buildings that fell down with the Recommended on Facebook Log In Log in to Facebook to see your friends' recommendations. Upset over U.S. fiscal crisis, China urges a 'de-Americanized world' 3,650 people recommend this. Gordon Ramsey endures hell, finishes Hawaii Ironman in Connect Like 600k advertisement Cockroach farms multiplying in China Puig displays talents, emotions in Dodgers' win Another dry year could be bad news for California GOP dropping amoung key groups, poll shows L.A. NOW POLITICS CRIME EDUCATION O.C. WESTSIDE NEIGHBORHOODS ENVIRONMENT DATA & MAPS LOCAL PLUS Photos: The perils of concrete Many older L.A. buildings could Related photos » The Pyne Gould Corp. building collapsed when the magnitude 6.3 earthquake struck Christchurch, New Zealand. It was built in the 1960s, before the adoption of modern seismic standards for concrete buildings. (Hannah Johnston / Getty Images / February 23, 2011) Like 18 Hi, Bart Reed Like 600k

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Page 1: Connect How a New Zealand earthquake led to building reforms · How a New Zealand earthquake led to building reforms 27 The 6.3 magnitude earthquake that devastated Christchurch,

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CONCRETE RISKS

After the deadly collapse of two concrete office buildings in the 2011 Christchurch quake,officials launched a sweeping seismic review and are drafting aggressive regulations.

By Rong-Gong Lin II and Rosanna Xia

October 12, 2013 , 11:03 a.m.

Member Center Alerts & Newsletters Jobs Cars Real Estate Rentals Weekly Circulars Local Directory Place Ad

LOCAL

LOCAL U.S. WORLD BUSINESS SPORTS ENTERTAINMENT HEALTH STYLE TRAVEL OPINION SHOP

TRENDING NOW GOVERNMENT SHUTDOWN DRY ICE BOMBS DODGERS SMARTWATCHES GOLDEN GLOBES BART STRIKESearch

How a New Zealand earthquake led to buildingreforms

27

The 6.3 magnitude earthquake that devastated Christchurch,

New Zealand, in 2011 toppled buildings, upended roads and

even liquefied the ground under some communities, causing

them to sink. The historic city saw the soaring brick spire of

the ChristChurch Cathedral topple and another 19th century

landmark church crumble to the ground.

But residents were stunned to learn that two-thirds of the 185

people killed in the city were in two more modern, seemingly

solid concrete office buildings that fell down with the

Recommended on Facebook

Log In Log in to Facebook to see your

friends' recommendations.

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urges a 'de-Americanized world'

3,650 people recommend this.

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finishes Hawaii Ironman in

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thrilling 'Einstein on the Beach'

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Connect

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a d ve rt i se m e n t

Cockroach farmsmultiply ing in China

Puig display s talents,emotions in Dodgers'win

Another dry y ear couldbe bad news forCalifornia

GOP dropping amoungkey groups, poll shows

L.A. NOW POLITICS CRIME EDUCATION O.C. WESTSIDE NEIGHBORHOODS ENVIRONMENT DATA & MAPS LOCAL PLUS

Photos: The perils of concrete

Many older L.A. buildings could

Rela ted ph otos »

Th e Py n e Gou ld Cor p. bu ildin g colla psed w h en th e m a g n itu de 6 .3 ea r th qu a ke str u ck Ch r istch u r ch ,

New Zea la n d. It w a s bu ilt in th e 1 9 6 0s, befor e th e a doption of m oder n seism ic sta n da r ds for con cr ete

bu ildin g s. (Ha n n a h Joh n ston / Getty Im a g es / Febr u a r y 2 3 , 2 01 1 )

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Hi, Bart Reed Like 600k

Page 2: Connect How a New Zealand earthquake led to building reforms · How a New Zealand earthquake led to building reforms 27 The 6.3 magnitude earthquake that devastated Christchurch,

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FROM AROUND THE WEB

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shaking. One of the buildings, built in the 1980s, housed a

local television station; the other, built in the 1960s, was

filled with financial firms.

Officials responded with the most sweeping seismic review of

concrete buildings ever attempted, far surpassing anything

achieved in California. The destruction galvanized public

interest in making buildings safer.

"The public consciousness has been raised dramatically,"

said Maurice Williamson, New Zealand's building and

construction minister.

Local authorities compiled lists of other potentially

vulnerable concrete buildings. The central government told

property owners to hire structural engineers to have their

buildings evaluated.

Authorities tentatively identified 342 buildings that required

further review to determine if they needed to be retrofitted

or demolished.

So far, inspectors have found problems with three buildings,

Williamson said. One has been retrofitted, and the other two

remain closed.

Property owners criticized the aggressive seismic regulations. After a few balked at paying for

inspections, the government threatened to publicly identify the holdouts.

Now, some owners are advertising their safe seismic ratings as a way to attract tenants.

Officials are drafting sweeping legislation that would require multiunit, multistory apartments and all

commercial buildings to be seismically evaluated within five years. If serious problems are found,

owners would have 15 years to retrofit.

The proposal would also set up a public register that lists vulnerable buildings.

"If their buildings aren't safe, then part of the cost of doing business is to bring them up to being

safe," Williamson said. "We've got a role to protect the public."

FAQ: Concrete buildings, earthquake safety and you

Live chat Monday at 9 a.m.: Discuss L.A.'s hidden earthquake risks

[email protected]

[email protected]

Copy r ig h t © 2 01 3 , Los A n g eles Tim es

27

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