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DESIGN FOR DISASTER Photos show what engineers say were big flaws in construction of Xinjian Primary School. Photo: (Du Bin for The New York Times)
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Columns buckled, probably due to inadequate re-bar reinforcement and transverse binding (small wires).
[object Object]
Experts said the concrete appeared to have too much “aggregate” (gravel mixed with cement), of wrong size.
Nine fourth graders survived out of a class of 48. otographed in June. ,[object Object]
Tens of thousands of schools worldwide, from Portland, Ore., to Tehran, face the same risk and are not reinforced.  For more on earthquakes and schools, explore earthquake posts and links at The New York Times Dot Earth blog: dotearth.blogs.nytimes.com Also….
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Design for Disaster

  • 1. DESIGN FOR DISASTER Photos show what engineers say were big flaws in construction of Xinjian Primary School. Photo: (Du Bin for The New York Times)
  • 2.
  • 3. Columns buckled, probably due to inadequate re-bar reinforcement and transverse binding (small wires).
  • 4.
  • 5. Experts said the concrete appeared to have too much “aggregate” (gravel mixed with cement), of wrong size.
  • 6.
  • 7. Tens of thousands of schools worldwide, from Portland, Ore., to Tehran, face the same risk and are not reinforced. For more on earthquakes and schools, explore earthquake posts and links at The New York Times Dot Earth blog: dotearth.blogs.nytimes.com Also….
  • 8.