Indian J.Sci.Res. 17 (1): 129-131, 2017 COMPARATIVE ANALYTIC T. SARANYA a1 , K. VIDHYA b , V. S abcde Department of Civil Engineerin A hollow core slab is a precast pres cost. They are primarily used as a floor deck because they are economical, have good fire distances with relatively small depths. Structu capacity, span range, and deflection control. depths between 150 and 260 mm to span over each other to form a continuous floor system grout. To give the floor a smooth finished surf hollow core slabs. The design concepts, manuf KEYWORDS: Conventional Slab, Box Cel Flooring units are widely used in concrete moment-resisting frame building behavior under fire has not received muc This is because large scale fire tests are d expensive, leaving computer analysis a alternative. However, the currently availab analysis methods are neither accurate nor This paper describes a simple yet reliable co method to be used in design for modeling th behavior of hollow-core prestressed con exposed to fires. The model has a major l not being able to model shear or tensile fa webs of the hollow-core units, but the outcomes show reasonably good agree experimental fire tests of hollow-core thereby verifying the reliability of the model CONVENTIONAL SLAB A concrete slab may be prefabri site. Prefabricated concrete slabs are built and transported to the site, ready to be l place between steel or concrete beams. T pre-stressed (in the factory), post-stressed unstressed. It is vital that the wall supporti is built to the correct dimensions, or the sla fit (figure 1). IS IS STUDY ON CONVENTIONAL SLAB AND SLAB SASIKUMAR c , P. VENGATESH d AND C. NAND ng, Mahendra Engineering College, Namakkal-637 503, Tamilna ABSTRACT stressed concrete member with continuous voids provided t system in residential and commercial buildings as well as i e resistance and sound insulation properties, and are capa urally, a hollow core slab provides the efficiency of a prestres Hollow core slabs can make use of prestressing strands, w r 9 meters. When used in buildings, several hollow core sla m. The small gap that is left between each slab is usually fill face, a topping slab overlay, typically 5cm deep is poured on facture and the erection techniques of Hollow core slabs are llular Slab, Round Cellular Slab. n reinforced gs, yet their ch attention. difficult and as the only ble computer easy to use. omputational he structural ncrete slabs limitation of ailure in the e simulation ement with slab units, l. icated or on in a factory lowered into hey may be (on site), or ing structure abs may not Figure 1: Convention ROUND CELLULAR SLAB A hollow core slab, also slab, hollow core plank or simply a precast slab of prestressed concrete construction of floors in mu buildings. The slab has been 3 es countries where the emphasis of ho been on precast concrete, includin and former socialist countries o Precast concrete popularity is linke zones and more economical const fast building assembly, lower material), etc (figure 2). SSN: 0976-2876 (Print) SSN: 2250-0138 (Online) CELLULAR DHAKUMAR e adu, India to reduce weight and in parking structures able of spanning long ssed member for load which allow slabs with abs are placed next to led with a non-shrink the top surface of the discussed in detail. nal Slab known as a voided a concrete plank is a typically used in the ulti-story apartment specially popular in ome construction has ng Northern Europe of Eastern Europe. ed with low-seismic tructions because of self weight (less
3
Embed
COMPARATIVE ANALYTIC STUDY ON CONVENTIONAL SLAB … · SARANYA ET. AL.: COMPARATIVE ANALYTIC STUDY ON CONVENTIONAL SLAB AND CELLULAR SLAB Figure 2: Round Cellular Slab BOX CELLULAR
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Indian J.Sci.Res. 17 (1): 129-131, 2017
COMPARATIVE ANALYTIC STUDY ON CONVENTIONAL SLAB AND CELLULAR
T. SARANYAa1, K. VIDHYA
b, V. SASIKUMAR
abcdeDepartment of Civil Engineering,
A hollow core slab is a precast prestressed concrete member with continuous voids provided to reduce weight and
cost. They are primarily used as a floor deck system in residential and commercial buildings as well as in parking structures
because they are economical, have good fire resistance and sound insulation properties, and are capable of spanning long
distances with relatively small depths. Structurally, a hollow core slab provides the efficiency of a prestressed member for
capacity, span range, and deflection control. Hollow core slabs can make use of prestressing strands, which allow slabs with
depths between 150 and 260 mm to span over 9 meters. When used in buildings, several hollow core slabs are placed next to
each other to form a continuous floor system. The small gap that is left between each slab is usually filled with a non
grout. To give the floor a smooth finished surface, a topping slab overlay, typically 5cm deep is poured on the top surface o
hollow core slabs. The design concepts, manufacture and the erection techniques of Hollow core slabs are discussed in detail.