Seismic Performance of Lightweight Concrete Structures

Advances in Civil Engineering - Tập 2018 Số 1 - 2018
V. Swamy Nadh1, Muthumani Krishnamurthy1
1VIT University, Chennai

Tóm tắt

Concrete structures are prone to earthquake due to mass of the structures. The primary use of structural lightweight concrete (SLWC) is to reduce the dead load of a concrete structure, which allows the structural designer to reduce the size of the structural members like beam, column, and footings which results in reduction of earthquake forces on the structure. This paper attempts to predict the seismic response of a six‐storied reinforced concrete frame with the use of lightweight concrete. A well‐designed six‐storey example is taken for study. The structure is modelled with standard software, and analysis is carried out with normal weight and lightweight concrete. Bending moments and shear forces are considered for both NWC and LWC, and it is observed that bending moments and shear forces are reduced to 15 and 20 percent, respectively, in LWC. The density difference observed was 28% lower when compared NWC to LWC. Assuming that the section and reinforcements are not revised due to use of LWC, one can expect large margin over and above MCE (maximum considered earthquake; IS 1893‐2016), which is a desirable seismic resistance feature in important structures.

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Tài liệu tham khảo

10.1016/s0008-8846(03)00131-5

ACI 211.2-98 Standard practice for selecting proportions for structural lightweight concrete 1998.

10.1016/j.cemconcomp.2009.05.002

Available Design Codes in STAAD Pro pp. 1–14 Bentley Communities publisher 2015.

ACI 318–14, 2014, Building Code Requirements for Reinforced Concrete

ShahH. J. Design Example of a Six Storey Building. A Report by IIT Kharagpur—A Case Study.

ASTM C 567 Standard test method for determining density of structural lightweight concrete 2014.

ACI Committe-213, 2003, Guide for Structural Lightweight-Aggregate Concrete, 1

IS 456–2000, 2000, Plain and Reinforced Concrete Code of Practice

Indian Standard Earthquake Resistant Design and Construction of Buildings Code of Practice: 1893-2016 Indian code.

10.1016/0008-8846(94)90155-4

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Advances in Civil Engineering

Tập 2018 Số 1

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