FORMWORK FOR CONCRETE SHELL STRUCTURES

ALTHOUGH THIN CONCRETE SHELL CONSTRUCTION IS GAINING SOMEWHAT WIDER ACCEPTANCE IN THIS COUNTRY, IT IS STILL NOT BEING USED IN ALL SITUATIONS WHERE IT WOULD BE THE BEST ARCHITECTURAL AND STRUCTURAL SOLUTION. REASONS COMMONLY ASSOCIATED WITH THE LIMITED ACCEPTANCE OF THIS STRUCTURAL FORM INCLUDE: (1) THE RELUCTANCE OF THE BUILDING INDUSTRY TO CHANGE FROM CONVENTIONAL PRACTICES; (2) THE BUILDING INDUSTRY'S LACK OF FAMILIARITY WITH THE INHERENT ADVANTAGES; AND (3) THE HIGH COST AND COMPLEXITY OF FORMWORK. THIS REPORT IS PRIMARILY AN INVESTIGATION OF THE LAST TWO PROBLEMS. CHAPTER ONE IS CONCERNED WITH THE STRUCTURAL, ARCHITECTURAL, AND ECONOMIC ADVANTAGE (AND DISADVANTAGES) COMMON TO ALL TYPES OF THIN CONCRETE SHELLS. CHAPTER TWO IS A BRIEF OUTLINE OF THE CONSTRUCTION PROCEDURES EMPLOYED IN CAST-IN-PLACE AND PRECAST THIN CONCRETE SHELL CONSTRU- CTION. CHAPTER THREE IS AN EXAMINATION OF ELEMENTS IN THE STRUCTURAL DESIGN OF CENTERING. CHAPTER FOUR IS A DISCUSSION OF VARIOUS TYPES OF SHELLS USED IN ARCHITECTURAL PRACTICE AND OF SPECIFIC FORMWORK SOLUTIONS USED IN THEIR CONSTRUCTION. THE INTENTION OF THIS REPORT IS TO PRESENT AN IMPARTIAL EXPOSITION OF THE ADVANTAGES AND DISADVANTAGES OF THIN CONCRETE SHELLS AND THUS TO ASSIST IN OVERCOMING THE RELUCTANCE OF THE BUILDING INDUSTRY TO CHANGE. A FURTHER PURPOSE IS TO DIRECT ATTENTION TO THE PROBLEMS OF FORMING SUCH STRUCTURES BY PROVIDING GENERAL INFORMATION IN THE PAPER AND BY LISTING A LARGE NUMBER OF BIBLIOGRAPHICAL REF- ERENCES. BECAUSE THE SUBJECT DISCUSSED HERE IS SO BROAD, THE COVERAGE OF A PARTICULAR TOPIC IS NECESSARILY SOMEWHAT BRIEF. FOR THIS REASON, THE BIBLIOGRAPHY IS SO ORGANIZED THAT THE INTERESTED READER CAN EASILY INVESTIGATE THE DE- TAILED REFERENCES. WITH THE ADDITION OF THE THIN CONCRETE SHELL TO THE ARCHITECT'S VOCABULARY, A STRUCTURAL ELEMENT APPEARS WHICH IS AT ONCE FUNCTIONAL AND EXPRESSIVE, ECONOMI- CAL AND BEAUTIFUL. HOWEVER, DESPITE ITS GREAT POSSIBILITIES, THE THIN CONCRETE SHELL IS NOT A UNIVERSAL SOLUTION TO ALL ARCHITECTURAL PROBLEMS. ITS APPLICATION SHOULD BE JUSTIFIED, IN EACH SPECIFIC INSTANCE, ON THE BASIS OF THE RELATIVE STRUCTURAL, ARCHITECTURAL, AND ECONOMIC FACTORS INVOLVED. /AUTHOR/

  • Supplemental Notes:
    • Tech Rept NO 21, 81 PP, 21 FIG, 2 TAB, REFS
  • Corporate Authors:

    Stanford University

    Department of Civil Engineering
    Stanford, CA  United States  94305
  • Authors:
    • Merchant, D H
  • Publication Date: 1963-5

Subject/Index Terms

Filing Info

  • Accession Number: 00215273
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 3 1970 12:00AM