This page has only limited features, please log in for full access.

Dr. Liaqat Ali
Collage of Civil Engineering & Architecture, Zhejiang University,

Basic Info

Basic Info is private.

Research Keywords & Expertise

0 Marine Engineering
0 Mechanical Engineering
0 environmental engineering
0 Offshore structural engineering
0 Internal waves and ocean mixing

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

Ali Liaqat did a Master(2015-2018) in Civil Engineering from Harbin Institute of Technology Shenzhen. And now Ali Liaqat doing Ph.D. research at the Department of Civil Engineering, Zhejiang University. Ali does research in offshore Pipeline, Internal waves, and Offshore structural Engineering. (2018-2021)

Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Journal article
Published: 31 May 2021 in Water
Reads 0
Downloads 0

A numerical model in slice configuration was applied to the Central Andaman Sea in order to derive metocean operational and design criteria associated to internal solitary waves which are large amplitude interfacial waves. For that purpose, a 10 year hindcast was generated. The model was driven by tides at the open boundary and included realistic stratification and topography. The results have been compared to data mostly taken from satellites and proved to be accurate in determining parameters such as phase speed and interpacket distance. The phase speeds range from 2.21 m/s in March to 2.5 m/s in November. Corresponding interpacket distances range from 99 km to 111 km in close agreement with available data. According to the model results internal solitary waves are more/less frequent in March/August. Model outputs were specifically analyzed at 2 arbitrary locations. Maximum current speeds obtained with the model at those locations occur in November reaching a value close to 1.5 m/s. The computed velocities associated to return periods of 1, 10, 50, 100 and 1000 years are, respectively, 1.67 m/s, 1.76 m/s, 1.8 m/s, 1.81 m/s and 1.84 m/s.

ACS Style

Liaqat Ali; Nageena Makhdoom; Yifan Gao; Pan Fang; Sikandar Khan; Yong Bai. Metocean Criteria for Internal Solitary Waves Obtained from Numerical Models. Water 2021, 13, 1554 .

AMA Style

Liaqat Ali, Nageena Makhdoom, Yifan Gao, Pan Fang, Sikandar Khan, Yong Bai. Metocean Criteria for Internal Solitary Waves Obtained from Numerical Models. Water. 2021; 13 (11):1554.

Chicago/Turabian Style

Liaqat Ali; Nageena Makhdoom; Yifan Gao; Pan Fang; Sikandar Khan; Yong Bai. 2021. "Metocean Criteria for Internal Solitary Waves Obtained from Numerical Models." Water 13, no. 11: 1554.

Journal article
Published: 10 May 2021 in Sensors
Reads 0
Downloads 0

Several approaches have been used in the past to predict fatigue crack growth rates in T-joints of the offshore structures, but there are relatively few cases of applying structural health monitoring during the non-destructive testing of jacket platforms. This paper presents an experimental method based on the sensing of the piezoelectric sensors and finite element analysis method for studying the fatigue cracks in the offshore steel jacket structure. Three types of joints are selected in the current research work: T-type plate, T-type tube-plate, and T-type tube joints. The finite element analysis model established in the current study computes and analyzes the high stress and high strain regions in the T-type joints. The fatigue damage in the T-type joints was successfully detected by utilizing both the finite element analysis and experimental methods. The results showed that fatigue cracks of the three types of joints are prone to appear at the weld toe and spread in the welding direction. The fatigue damage location of T-type plate and T-type tube-plate joints is more concentrated in the upper weld toe area, and the fatigue damage location of the T-type tube joint is closer to the lower weld toe area.

ACS Style

Liaqat Ali; Sikandar Khan; Salem Bashmal; Naveed Iqbal; Weishun Dai; Yong Bai. Fatigue Crack Monitoring of T-Type Joints in Steel Offshore Oil and Gas Jacket Platform. Sensors 2021, 21, 3294 .

AMA Style

Liaqat Ali, Sikandar Khan, Salem Bashmal, Naveed Iqbal, Weishun Dai, Yong Bai. Fatigue Crack Monitoring of T-Type Joints in Steel Offshore Oil and Gas Jacket Platform. Sensors. 2021; 21 (9):3294.

Chicago/Turabian Style

Liaqat Ali; Sikandar Khan; Salem Bashmal; Naveed Iqbal; Weishun Dai; Yong Bai. 2021. "Fatigue Crack Monitoring of T-Type Joints in Steel Offshore Oil and Gas Jacket Platform." Sensors 21, no. 9: 3294.

Journal article
Published: 26 February 2021 in Sustainability
Reads 0
Downloads 0

The emission and mitigation of greenhouse gases transforms the status of urban environments. However, a policy accounting for all the aspects associated with transport is lacking. Problems related to transport include a greater reliance on cars, increased congestion, and environmental impacts. The absence of an efficient public transport system is a notable cause of the prompt escalation of diverse problems, for example, increases in the number of personal automobiles causes congestion on the road, resulting in air pollution, ubiquitous greenhouse effects and noise pollution, which ultimately affect human health. Transit oriented development (TOD) has been suggested as a solution to these problems. This paper reviews the impacts of transit development on urban development, greenhouse impact, the environment, economy, property value, travel behavior, and health etc., highlighting the policy issues which hinder TOD. Implementation of TOD has a strong impact on shaping the urban form, redevelopment, and the upgradation of old areas. Controlling transit phenomena will also help to control the emission and mitigation of greenhouse gases. This study will help in improving the urban environment and climatic condition of regions.

ACS Style

Liaqat Ali; Ahsan Nawaz; Shahid Iqbal; Muhammad Aamir Basheer; Javaria Hameed; Gadah Albasher; Syyed Shah; Yong Bai. Dynamics of Transit Oriented Development, Role of Greenhouse Gases and Urban Environment: A Study for Management and Policy. Sustainability 2021, 13, 2536 .

AMA Style

Liaqat Ali, Ahsan Nawaz, Shahid Iqbal, Muhammad Aamir Basheer, Javaria Hameed, Gadah Albasher, Syyed Shah, Yong Bai. Dynamics of Transit Oriented Development, Role of Greenhouse Gases and Urban Environment: A Study for Management and Policy. Sustainability. 2021; 13 (5):2536.

Chicago/Turabian Style

Liaqat Ali; Ahsan Nawaz; Shahid Iqbal; Muhammad Aamir Basheer; Javaria Hameed; Gadah Albasher; Syyed Shah; Yong Bai. 2021. "Dynamics of Transit Oriented Development, Role of Greenhouse Gases and Urban Environment: A Study for Management and Policy." Sustainability 13, no. 5: 2536.

Journal article
Published: 24 October 2020 in Ships and Offshore Structures
Reads 0
Downloads 0
ACS Style

Liaqat Ali; Yong Bai; Yuxin Xu. A methodology to derive design metocean internal wave current criteria for submarine structures. Ships and Offshore Structures 2020, 1 -10.

AMA Style

Liaqat Ali, Yong Bai, Yuxin Xu. A methodology to derive design metocean internal wave current criteria for submarine structures. Ships and Offshore Structures. 2020; ():1-10.

Chicago/Turabian Style

Liaqat Ali; Yong Bai; Yuxin Xu. 2020. "A methodology to derive design metocean internal wave current criteria for submarine structures." Ships and Offshore Structures , no. : 1-10.

Research article
Published: 09 October 2020 in Complexity
Reads 0
Downloads 0

The present investigation aims to propose a numerical model for assessing the complex damaging response of glass fiber-reinforced polymer- (GFRP-) reinforced concrete columns having hybrid fibers and confined with GFRP spirals (GFHF columns) under concentric and eccentric compression. Fiber-reinforced concrete (FRC) consists of polyvinyl alcohol fibers (PVA) and polypropylene fibers (PF). A total of six GFHF circular columns were constructed having a circular cross section of 250 mm and a height of 1200 mm. A commercial package ABAQUS was used for the finite element analysis (FEA) of the GFHF columns by using a modified concrete damage plastic (CDP) model for hybrid fiber-reinforced concrete (HFRC). The damaging response of GFRP bars was defined using a linear elastic model. The results depicted that the failure of GFHF columns occurred either in the upper or in the lower half portion with the rupture of GFRP longitudinal bars and GFRP spirals. The decrease in the pitch of GFRP spirals led to an improvement in the axial strength (AS) of GFHF columns. The eccentric loading caused a significant reduction in the AS of columns. The comparative study solidly substantiates the validity and applicability of the newly developed FEA models for capturing the AS of GFHF columns by considering the axial involvement of longitudinal GFRP bars and the confinement effect of transverse GFRP spirals. So, the suggested numerical model having a complex system of equations for HFRC can be used for the accurate analysis of HFRC members.

ACS Style

Liaqat Ali; Ahsan Nawaz; Yong Bai; Ali Raza; Muhammad Kashif Anwar; Syyed Adnan Raheel Shah; Syed Safdar Raza. Numerical Simulations of GFRP-Reinforced Columns Having Polypropylene and Polyvinyl Alcohol Fibers. Complexity 2020, 2020, 1 -14.

AMA Style

Liaqat Ali, Ahsan Nawaz, Yong Bai, Ali Raza, Muhammad Kashif Anwar, Syyed Adnan Raheel Shah, Syed Safdar Raza. Numerical Simulations of GFRP-Reinforced Columns Having Polypropylene and Polyvinyl Alcohol Fibers. Complexity. 2020; 2020 ():1-14.

Chicago/Turabian Style

Liaqat Ali; Ahsan Nawaz; Yong Bai; Ali Raza; Muhammad Kashif Anwar; Syyed Adnan Raheel Shah; Syed Safdar Raza. 2020. "Numerical Simulations of GFRP-Reinforced Columns Having Polypropylene and Polyvinyl Alcohol Fibers." Complexity 2020, no. : 1-14.

Articles
Published: 03 April 2020 in Ships and Offshore Structures
Reads 0
Downloads 0

During the service life of the offshore pipelines, different failure mechanisms like external/internal sheath damage, fatigue damage, or corrosion may arise. Therefore, high operating costs need to be consumed to confirm the fitness of the pipeline system. This research deals with an enhanced Risk-Based Inspection (RBI) methodology to certify the integrity management of the pipeline system, a radical new way of RBI practice is introduced for analysing steel pipeline and flexible pipeline. Case studies are executed to designate and give knowledge of how the technique works in exercise with what outcomes can be discovered. The discoveries present features of uncertainties which may not have been measured when implementing the traditional RBI scheme. The scope of this research is to display that with an efficient technique of execution the RBI practice, the failures of pipeline systems can be monitored and control system to ensures the integrity of the pipeline’s system.

ACS Style

Hamad Hameed; Yong Bai; Liaqat Ali. A risk-based inspection planning methodology for integrity management of subsea oil and gas pipelines. Ships and Offshore Structures 2020, 1 -13.

AMA Style

Hamad Hameed, Yong Bai, Liaqat Ali. A risk-based inspection planning methodology for integrity management of subsea oil and gas pipelines. Ships and Offshore Structures. 2020; ():1-13.

Chicago/Turabian Style

Hamad Hameed; Yong Bai; Liaqat Ali. 2020. "A risk-based inspection planning methodology for integrity management of subsea oil and gas pipelines." Ships and Offshore Structures , no. : 1-13.