International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 06 Issue: 05 | May 2019
p-ISSN: 2395-0072
www.irjet.net
BEHAVIORAL STUDY OF SCALED GFRG WALL PANEL CONTAINING OPENING SUBJECTED TO LATERAL LOADING Athira Rajeev1, Gayathri Devi M2 1PG
student, Department of Civil Engineering, SGCET, Kottayam, Kerala, India Professor, Department of Civil Engineering, SGCET, Kottayam, Kerala, India ---------------------------------------------------------------------***--------------------------------------------------------------------2Assistant
Abstract - Glass fiber reinforced gypsum (GFRG) walls and
will be reduced by 75-80%. Also embodied energy of Rapid wall building is lower than conventional building by about 61.5%. Typical dimensions of a GFRG building panel are 12.0m x 3.0m x 0.124m as shown in fig 1. Each 1m segment of the panel contains four cells. Each cell is 250mm wide and 124mm thick, containing a cavity 230mm x 94mm. The typical cross section of a GFRG panel [8] is shown in Fig 1.
their associated building system are the new building product and building system that have been developed in the Australian building industry in the last decade. They can also be used as walls and slabs. They have a high level of resistance to fire, water, heat and corrosion Many studies have been carried out about the performance of GFRG panels. Openings are frequently provided in the walls to meet the functional and architectural requirements of buildings. These openings are source of weakness and they affect the load carrying capacity of the member. GFRG walls are used as load bearing walls and the influence of openings on their load carrying capacity is not fully explored. This paper investigates the behavior of GFRG wall panel with and without opening subjected to lateral load.
Key Words: Glass Fiber, Gypsum, Eco-friendly, Wall panel, Structural behavior
Fig -1: Cross section of GFRG panel
1.INTRODUCTION
1.1 Objectives of the study
Rapid wall , also called gypcrete panel, a combination of phosphogypsum and glass fiber was first used in Australia in 1990 as wall panels containing modular cavities. GFRG (Glass Fiber Reinforced Gypsum) walls are energy efficient green building material with huge potential. Since its advent, it has been used as load bearing and non load bearing wall panels suitable for both external and internal walls in single storey to medium-high rise buildings. Many studies have shown that, these light weighted Rapid wall has high compressive strength, shearing strength, flexural strength and ductility. It also has a high level of resistance to fire, water, heat and corrosion. These walls can be made load bearing by suitably filling the cavities with concrete and vertical reinforcement bars enhances its vertical and lateral load capabilities. They are also resistant to earthquakes, cyclones and fire. Safe and good quality housing becomes unaffordable to the low income section, in the present scenario of ever increasing cost of cement, steel, bricks, river sand, concrete materials and labour cost.Rapid wall panels are much cheaper and affordable as well as help to protect the environment as carbon emission is reduced by about 80Kg per m2 of panel. The panel also has excellent acoustic properties. The cavities can also be filled using locally available cheaper materials like quarry dust mixed with cement (1:20) and water or sand and cement (1:20), which can make the wall solid and address security related concerns. GFRG panels are generally suitable for repetitive type mass housing. In such cases, the time for construction
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To study the performance of GFRG wall panels under lateral load
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To compare the lateral load capacity of GFRG wall with and without opening.
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To study the failure pattern of GFRG wall under lateral load
1.2 Methodology A detailed literature survey was carried out about the properties of GFRG panel and construction practice adopted Physical properties of materials were tested and found that all properties are conforming to IS standards. Fixing the size of the panel and plinth beam to be casted. Fixing the mix proportion for M20 concrete to be used for casting of plinth beam and filling the cores of GFRG panel. Casting of plinth beam of size 1.5m x .2m x .2m. Placing of GFRG panel on the plinth beam using full length bar using M20 concrete. Repeated lateral load test was performed on the panels.
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