Journal of Recent Activities in Infrastructure Science最新文献

Response of T Beam Bridge by Varying Skew Angle 不同倾斜角度下 T 梁桥的响应

Journal of Recent Activities in Infrastructure Science Pub Date : 2024-07-10 DOI: 10.46610/jorais.2024.v09i02.003

Ayisha Sana Abdul Salam, Anila S

{"title":"Response of T Beam Bridge by Varying Skew Angle","authors":"Ayisha Sana Abdul Salam, Anila S","doi":"10.46610/jorais.2024.v09i02.003","DOIUrl":"https://doi.org/10.46610/jorais.2024.v09i02.003","url":null,"abstract":"Bridges are ensuring the smooth flow of goods and people. The seismic performance of bridges, especially those with unique geometries, such as T-beam bridges with zero skew angles, is paramount in earthquake-prone regions. This project comprehensively analyses a T-beam bridge with a 10⁰ to 50⁰ skew angle. The response of T-beam bridges to varying skew angles is a critical area of study in structural engineering, as skewed bridges are standard in modern infrastructure due to geometric and site constraints. This research investigates the impact of different skew angles on the structural performance of T-beam bridges, focusing on parameters such as bending moments, shear forces, deflections, and stress distribution. The study uses finite element analysis and empirical data to reveal how increasing skew angles affect T-beam bridges' load-carrying capacity and deformation behaviour. The study encompasses several key aspects: Detailed documentation of the bridge's geometry, materials used, and construction techniques employed in the T-beam Bridge under consideration and the development of a finite element model to represent the T-beam Bridge accurately, comparison by varying the skew angles and applying various seismic ground motion records to simulate the bridge's response under earthquake-induced loading and assess the bridge's performance using performance metrics such as moment, shear and torsion levels.","PeriodicalId":206064,"journal":{"name":"Journal of Recent Activities in Infrastructure Science","volume":"57 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141835282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of Compliance and Welfare of Construction Workers at Selected Building Construction Project in Kathmandu: Implications for Labor Act Implementation 对加德满都部分建筑施工项目的合规性和建筑工人福利的评估：对《劳动法》实施的影响

Journal of Recent Activities in Infrastructure Science Pub Date : 2024-04-11 DOI: 10.46610/jorais.2024.v09i01.003

Subash Kumar Bhattarai, Diksha Dahal, Uttam Neupane

{"title":"Assessment of Compliance and Welfare of Construction Workers at Selected Building Construction Project in Kathmandu: Implications for Labor Act Implementation","authors":"Subash Kumar Bhattarai, Diksha Dahal, Uttam Neupane","doi":"10.46610/jorais.2024.v09i01.003","DOIUrl":"https://doi.org/10.46610/jorais.2024.v09i01.003","url":null,"abstract":"This study assesses compliance and welfare among construction workers at selected building construction projects in Kathmandu, examining implications for Labor Act implementation. Utilizing literature review and questionnaire surveys, data from 228 workers, with 99 in the sample, were analyzed. The questionnaire surveyed 31 special Labor Act provisions, employing dichotomous questions. Results show high worker awareness of rights under the Labor Act, notably regarding employer duties, non-discrimination, working hours, overtime, and safety. However, gaps exist in awareness regarding remuneration, transportation, and timely wage payment. Mann-Whitney U tests comparing male and female respondents revealed no statistically significant differences in scores, suggesting gender neutrality in compliance perceptions. Challenges in labor law enforcement, including insufficient mechanisms, resource constraints, and monitoring gaps, were identified. Recommendations include strengthening enforcement, enhancing awareness, capacity-building, and stakeholder collaboration. Continuous monitoring and evaluation are emphasized to ensure construction worker welfare in Kathmandu.","PeriodicalId":206064,"journal":{"name":"Journal of Recent Activities in Infrastructure Science","volume":"16 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140715289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Re-orienting towards Safer Roads Infrastructure in Nepal 调整方向，建设尼泊尔更安全的道路基础设施

Journal of Recent Activities in Infrastructure Science Pub Date : 2023-12-31 DOI: 10.46610/jorais.2023.v08i03.003

Hemant Tiwari, Sanjay Luitel

{"title":"Re-orienting towards Safer Roads Infrastructure in Nepal","authors":"Hemant Tiwari, Sanjay Luitel","doi":"10.46610/jorais.2023.v08i03.003","DOIUrl":"https://doi.org/10.46610/jorais.2023.v08i03.003","url":null,"abstract":"Nepal recently updated its National Road Safety Action Plan (2013-2020) for the period 2021-2030, aiming to reduce the alarming rise in road crashes, fatalities, and major injuries observed over the past decade. The paper primarily delves into the multiple facets of safer road infrastructure while specific design standards exist for national, rural, and urban roads, guiding engineers in the initial stages of road design and construction to ensure safety—many parameters, such as radius, sight distance, and gradient, are frequently overlooked, especially on hill roads. The road safety audit stands out as the most effective method for pinpointing safety issues throughout the road construction process, from the planning phase to operation, and for suggesting necessary safety enhancements. Nonetheless, the actual implementation of these audits remains inadequate. Additionally, the paper sheds light on the state of road crashes, the institutional framework dedicated to safe road infrastructure development, specific guidelines and standards about road safety, and the current status of road safety audits and other interventions across road projects in Nepal.","PeriodicalId":206064,"journal":{"name":"Journal of Recent Activities in Infrastructure Science","volume":"8 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139132699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seismic Analysis of Irregular Buildings With And Without Lead Plug Rubber Bearings (LPRB) 有无铅塞橡胶支座(LPRB)的不规则建筑抗震分析

Journal of Recent Activities in Infrastructure Science Pub Date : 2023-04-21 DOI: 10.46610/jorais.2023.v08i02.001

Shadiya P V, Priyanka Dilip P

{"title":"Seismic Analysis of Irregular Buildings With And Without Lead Plug Rubber Bearings (LPRB)","authors":"Shadiya P V, Priyanka Dilip P","doi":"10.46610/jorais.2023.v08i02.001","DOIUrl":"https://doi.org/10.46610/jorais.2023.v08i02.001","url":null,"abstract":"Base isolation has become an effective technique that aids in earthquake hazard mitigation and has been in use for the past decade. By properly separating the structure from the horizontal ground motion components, the base isolation system lowers the likelihood of resonance. Isolators are provided at the base of the structures, and decoupling is accomplished by modifying the system's flexibility and adding adequate damping. Structures with irregular plans are gaining popularity owing to their aesthetic appearance as well as architectural designs. The response of such structures to seismic action will be different from conventional structures. This paper aims to study the effect of base isolators on structures with irregular plans, while simultaneously observing the changes occurring when the height of the structures is increased. Three unique plans are chosen, namely plus, L and T shapes, whose responses are studied on 5, 10 and 15-storeyed structures. All the columns in the base-isolated structures are equipped with lead plug rubber-bearing base isolators which is the chosen isolator for this study. The base isolators are designed for each structure specifically so that the behavioural patterns observed are as accurate as possible. From the obtained results, it is discerned that base-isolated buildings exhibited better performances in comparison with fixed-base buildings, and as the height of the structure increases the effect of the base isolator tends to decrease.","PeriodicalId":206064,"journal":{"name":"Journal of Recent Activities in Infrastructure Science","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125408868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Progressive Collapse Analysis by Comparing Intermediate Moment Resisting Frames and Dual Systems with Buckling Restrained Braces 中间抗弯矩框架与带屈曲约束支撑的双体系的递进破坏分析

Journal of Recent Activities in Infrastructure Science Pub Date : 2023-04-15 DOI: 10.46610/jorais.2023.v08i01.005

Christina Bobby P, Priyanka Dilip P

引用次数: 0

Analysis of U – Shaped Damper Using Structural Steel And Shape Memory Alloy As Base Isolators 用结构钢和形状记忆合金作为基础隔振器的U型阻尼器分析

Journal of Recent Activities in Infrastructure Science Pub Date : 2023-04-15 DOI: 10.46610/jorais.2023.v08i01.004

Sona Jose K, A. S

引用次数: 0

Planning, Analysis and Design for GWCET Workshop Building GWCET厂房建筑规划、分析与设计

Journal of Recent Activities in Infrastructure Science Pub Date : 2023-03-31 DOI: 10.46610/jorais.2023.v08i01.002

A. Pachkawade, Ankita Vaidya, Nirbhayee Karankote, S. V. Pathare, Ravindra M. Wakodikar

{"title":"Planning, Analysis and Design for GWCET Workshop Building","authors":"A. Pachkawade, Ankita Vaidya, Nirbhayee Karankote, S. V. Pathare, Ravindra M. Wakodikar","doi":"10.46610/jorais.2023.v08i01.002","DOIUrl":"https://doi.org/10.46610/jorais.2023.v08i01.002","url":null,"abstract":"The purpose of this study is to groom the students about the technical aspects of an academic building that help them to face the practical-based industry. This study guides the student in a way to develop existing structures and also be aware of different building norms and regulations that need to be followed. Six students in a group participated in the study. Data required for the educational project purpose is collected from the institutional responsible member, further this available data is analyzed and developed by considering the future expansion of the institution. Institutional and building norms, Retrofitting and rehabilitation, Planning, Analysis & Design these five items are the parameters considered that are important for student's progress in the industry. The most emphasized aspects of the academic building that are essential to meeting students' needs include a workshop centre, sports facilities, gymnasium, common rooms, auditoriums, conference room etc. This means that since they may have an impact on students' performance, facilities managers in higher education institutions need to pay close attention to these extracurricular features of academic buildings.","PeriodicalId":206064,"journal":{"name":"Journal of Recent Activities in Infrastructure Science","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121291834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Role of Innovation Approach in Optimizing Reservoir Operation-Review of Techniques and Approaches 创新方法在油藏优化中的作用——技术与方法综述

Journal of Recent Activities in Infrastructure Science Pub Date : 2022-11-30 DOI: 10.46610/jorais.2022.v07i03.002

Chinar Garg, Ananda Babu K.

{"title":"The Role of Innovation Approach in Optimizing Reservoir Operation-Review of Techniques and Approaches","authors":"Chinar Garg, Ananda Babu K.","doi":"10.46610/jorais.2022.v07i03.002","DOIUrl":"https://doi.org/10.46610/jorais.2022.v07i03.002","url":null,"abstract":"As the world population is growing, its water demand is becoming more and more diversified; the difference between the demand and supply is continuously increasing. The solution to this problem is to systematically utilize the available water resources, or harvest additional water potential from new water resources projects and/or by formulating strategies for proper utilization of the available resources. Because most of the rivers and their tributaries in India are Seasonal, the Key Step taken for the solution to this difficulty is the “Reservoir Projects”. The development of a release policy for a reservoir is a multistage decision-making process. A model is required to be developed for each system of reservoirs. The essential need for the formulation of the optimal policy is to determine the schedule of releases from a reservoir system, which can maximize or minimize the utilities associated with the release of water. Numerous algorithms have been used to advance the results of Reservoir operation and maximize the net benefit, but due to their limitations, the selection of an appropriate model for deriving reservoir operating policies is difficult, and more often there is scope for further improvement as choosing a particular model for reservoir operation depends on the reservoir characteristics considered, availability of data, specified objectives, and constraints. In the present paper, various optimizations Algorithm and techniques are compared along with their Pros and cons, and limitations to find the most appropriate Algorithm for reservoir operation.","PeriodicalId":206064,"journal":{"name":"Journal of Recent Activities in Infrastructure Science","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122005898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative Study of Design of Over Head Water Tanks for Capacity of 100 kL to 300 kL using Recent Past IS 3370 100kl与300kl容量上水罐设计的比较研究

Journal of Recent Activities in Infrastructure Science Pub Date : 2022-02-01 DOI: 10.46610/jorais.2022.v07i02.001

M. Chandra, Rajendra Kumar Baghel, N. Binnani

{"title":"Comparative Study of Design of Over Head Water Tanks for Capacity of 100 kL to 300 kL using Recent Past IS 3370","authors":"M. Chandra, Rajendra Kumar Baghel, N. Binnani","doi":"10.46610/jorais.2022.v07i02.001","DOIUrl":"https://doi.org/10.46610/jorais.2022.v07i02.001","url":null,"abstract":"An elevated reservoir is mostly used to store, liquid products like water, petroleum, and other types of chemicals, which require some static head to provide kinetic energy for flow. Except for the durability aspect, design load calculation of various reservoirs is similar regardless of the chemical aggressiveness. In general, water-retaining structures have been designed as crack-free structure to avoid any sort of outflow. As per the observation from the field, the overhead water tanks were designed continuously using the old Indian Standard codes (IS 3370: 1965 (Part 1 to 2), IS 1893: 1984 (Part 1) and IS 875: 1987 (Part 3)). In order to understand the variation in design due to amendments in Indian Standard (IS 3370: 2021 (Part-1 to 2), IS 1893: 2014 (Part-2), IS 875: 2015 (Part-3) in past few years, it is necessary to do comparative study of design of elevated reservoirs for different capacity. This study is an attempt to compare the design provisions based on different design philosophies i.e. WSM (IS: 3370 (1965) and LSM (IS: 3370 (2021). In this paper, variation in reinforcement quantity in different elements of double domed elevated reservoir has been estimated for 100 kL to 300 kL capacity for seismic zone-III and for wind speed 39 m/sec. A design program has been prepared for the design calculations of overhead water tanks using MS excel for different capacity and distinctive IS codal provisions. Comparison of results using different design philosophies has raised the need for retrofitting of various elements of existing water tanks.","PeriodicalId":206064,"journal":{"name":"Journal of Recent Activities in Infrastructure Science","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133933251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative Study for Evaluation of Blast Load Parameters using IS 4991-1968 and UFC 3-340-02 IS 4991-1968与UFC 3-340-02爆破载荷参数评估的比较研究

Journal of Recent Activities in Infrastructure Science Pub Date : 2021-09-24 DOI: 10.46610/jorais2021.v06i03.001

Kashi Prasad Patel, N. Binnani

引用次数: 0