Nik Zainab Nik Azizan

Nik Zainab Nik Azizan
University of Malaysia, Perlis | unimap ·  School of Environmental Engineering

About

19
Publications
46,051
Reads
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120
Citations
Additional affiliations
September 2021 - present
University of Malaysia, Perlis
Position
  • Senior Lecturer
Education
March 2014 - September 2017
University of Science Malaysia
Field of study
  • Earthquake Engineering
December 2008 - April 2010
University of Technology Malaysia
Field of study
  • Master of Civil Engineering (Civil - Structure)
December 2005 - November 2008
University of Technology Malaysia
Field of study
  • Civil Engineering

Publications

Publications (19)
Conference Paper
Full-text available
A concrete gravity dam is a significant infrastructure that plays a pivotal role in the community of a country. However, the event of a single and repeated earthquake caused serious damage to the structure that led to greater effects on the country and human life. This paper investigates the performance of concrete gravity dams with various elevati...
Article
Full-text available
This paper aims to determine the Marshall properties of Asphalt Concrete-Wearing Course (AC-WC) and Hot Rolled Sheet-Wearing Course (HRS-WC) with the utilization of concrete waste and also to determine the percentage of concrete waste added into AC-WC and HRS-WC as the substitute for coarse aggregates. During the manufacture of asphalt mixtures, co...
Chapter
The reinforced concrete shear walls are structural systems used in contemporary high-rise buildings to sustain lateral load structures such as wind, seismic loads, and carrying gravity loads. To make the structural system more efficient in resisting horizontal and gravity loads, ground motions and thus causing less damage to the structure during th...
Article
Full-text available
Conventional construction materials are considered as exploitation to natural resources. Thus, numerous alternative materials using natural or waste materials are proposed for concrete production as a response for greener, renewable and biodegradable environments with regard to sustainability. Natural fibre such as bamboo has been rapidly proposed...
Article
Buildings deteriorate gradually over time due to several reasons, including unattended defects, neglected damage, and natural causes. Hence, maintenance activities are required to impede the deterioration process to ensure the continuous function of the buildings. Maintenance is a systematic process to safeguard features and resources operated at o...
Article
Full-text available
A new developed of polymer materials made up of polypropylene (PP), recycled nitrile gloves (NBRr) and empty fruit bunch (EFB) fiber was fabricated. Recycled nitrile glove was blended together with PP plastic to reduce the use of petroleum based and to solve the issue of waste discarded at the landfill. EFB fiber was incorporated to lower the produ...
Article
Full-text available
This paper outlines the carbon emission reduction opportunities through energy measurement by implementing good operating practices and good house-keeping in PVC floorcovering mat industry in Perlis, Malaysia. The baseline data was obtained through the energy audit to identify the area to be improved. Cleaner Production (CP) options through good op...
Article
Full-text available
The main purpose to conduct this research is to compare the performance of high-rise building based on design code BS 8110, EC 2 and the combination EC 2 and EC 8. 10-storey high-rise building was designed based on the 3 types of design codes. The design and analyses were used software method and manual calculation to define the detail of the struc...
Article
Full-text available
The research carried out to study on the performance of the flat slab under the design load. The design loads consist of service load, 14.68 kN/m ² and the ultimate load, 21.31 kN/m ² . The justification on the design load was from the car park. The Three-Dimensional (3D) Finite Element Analysis (FEA) were conducted to investigate their failures mo...
Article
Full-text available
This paper discusses the performance of concrete gravity dam with a height of 50m and 75m is studied by using the incremental dynamic analysis (IDA). The IDA curves were develop based on seven ground motions which fulfil the criteria of i) the distance of near field is less than 15km, (ii) the earthquake magnitude is greater than 5.5 and (iii) the...
Article
This study presented the development of fragility curves in three-span reinforced concrete bridges. A prototype model was designed based on British Standard (BS 5400) (Part 4). The model included three-span structures with different concrete grades and pier heights. Eurocode 8 (EC8) was used as reference for seismic consideration similar to BS 5400...
Article
Full-text available
This paper discovers the incremental dynamic analysis (IDA) of concrete gravity dam under single and repeated earthquake loadings to identify the limit state of the dam. Seven ground motions with horizontal and vertical direction as seismic input considered in the nonlinear dynamic analysis based on the real repeated earthquake in the worldwide. Al...
Article
A large mainshock that can trigger a variety of aftershocks, including larger aftershocks, within a short period can potentially increase the cumulative damage on structures. This study is devoted to analyzing the structural performance of a dam under seismic loading. Seismic sequences characterized by the repetition of moderate and strong earthqua...
Article
Full-text available
The damage of concrete due to the expansion of alkali-aggregate reaction (AAR) and thermal-chemical reactions affecting the strength of concrete is studied. The empirical equations for the variations of expansion of AAR, compressive strength and degradation of the modulus of elasticity with time, and compressive strength with degradation of the mod...
Conference Paper
Full-text available
This paper discusses the performance of Koyna dam based on static pushover analysis (SPO) and incremental dynamic analysis (IDA). The SPO in this study considered two type of lateral load which is inertial load and hydrodynamic load. The structure was analyse until the damage appears on the structure body. The IDA curves were develop based on 7 gro...
Conference Paper
Full-text available
This paper explores the static pushover (SPO) analysis of concrete gravity to determine the limit state of dam based on the crack profiles. Lateral load for concrete gravity dam that presents the range of base shear caused by seismic loading is statically applied to the dam and the coefficient loads are increased until an ultimate condition is a...
Conference Paper
Full-text available
T-shaped buildings are classified as buildings with plan irregularity and vulnerable to damages under seismic loading. This study investigates the sensitivity of lift core positions by comparing the percentage difference of the maximum torsional moment and building deformation for T-shaped reinforced concrete buildings. Building models having 6-sto...

Questions

Questions (5)
Question
Can someone help me to find out which software is better to design the structure dam?
I am currently trying to use ETABS, sap2000 and plaxis. I think the plaxis out of my list because this software focus on the soil. i try the etabs and sap2000, plain strain analysis. seem the results are not logic to me. 
Question
I am trying to find out the displacement time history data for Koyna Earthquake. Can someone help me? If I cant get the other location that's also ok. I want try to design the structure base on actual earthquake loading.
Question
Can someone help me to find out the K value in this equation. The equation below to find out the scalar degradation parameter. The K value is for the internal variable defining the current degradation. Is it correct if I use K = ft/E.
 dm = as − κ0/κ [1 − αc + αc e(β c[κ0− κ] )
Question
Is the design the same as a retaining wall? Do you only need to consider hydrostatic load.

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