Research ArticleTransportation & Construction Management
Sakir Khan ()·Gaurav Shukla ()
This paper analyses a study of the Patna Metro corridor PC-04 of phase-1, which runs from Danapur to Patliputra in Patna, Bihar, to examine how different hazards related to metro construction are measured and managed. Identification of risks associated with various project activities is made possible in large part by project risk management. The Metro Rail organisation and its officials have recognised certain risks that can emerge during construction and raise the possibility of collisions, especially on busy roads. It is particularly difficult to manage these risks in the metro rail system when it comes to crucial operations. In order to reduce the likelihood of accidents, strict risk and safety management criteria are followed, given the metro's relevance to national pride. These rules must be followed by all contractors working on the project in order to reduce deaths and guarantee safety.
SafetyMetro RailRisk IdentificationManagementConstruction
Research ArticleMaterials & Structural Engineering
Ajay Pratap ()
— This study presents the nonlinear stress-strain behavior and failure mechanisms of concrete brick masonry and its components, under compression and shear forces. II. EXPERIMENTAL PROGRAM AND TEST SETUP Experimental investigations were conducted to derive simple This study investigates the properties of Concrete brick relationships for estimating the modulus of elasticity of concrete brick masonry prisms based on their compressive strength. masonry, including water absorption, initial rate of Shear strength and shear modulus of the masonry were absorption, split tensile strength, and nonlinear compressive determined by testing masonry wallets of scaled sizes. A stress-strain behavior. Stress-strain characteristics of three parametric analysis was performed to assess the influence of the grades of 50-mm mortar cubes and stack-bonded masonry compressive strength of brick masonry prisms on the shear prisms were evaluated under monotonic compressive strength of masonry wallets. loading. Masonry wallets were tested under diagonal compression to assess shear behavior.
— Concrete brickmortarMasonry prismCompression testTension test Concrete bricks (230 × 110 × 75 mm) and masonry prisms I. INTRODUCTION (420 mm he
Research ArticleMaterials & Structural Engineering
Rahul Kumar ()
High-performance concrete has become a cornerstone in modern structural engineering due to its superior strength and durability over traditional concrete. This paper explores recent progress in the field, focusing on innovations in materials, optimized mix designs, and sustainable construction practices. Enhancements such as the integration of nanoparticles, advanced chemical admixtures, and supplementary cementitious materials have significantly improved concrete’s overall performance. The aim of this review is to provide a comprehensive understanding of these advancements and their role in promoting greener, more sustainable building solutions.
ConcreteNanomaterialsSustainabilityDurabilityOptimization
Research ArticleStructural & Earthquake Engineering
Vipul Chandra ()·Hrishikesh Dubey ()
This study investigates the seismic behavior of reinforced concrete buildings with different types of vertical irregularities using Response Spectrum Analysis (RSA). Both regular and H-shaped plan irregular buildings were modeled, each with a footprint of 20x15 meters and a typical floor height of 3.2 meters, excluding the ground floor, for an 8-storey (G+7) structure. The seismic performance under a earthquake conditions was evaluated based on how stiffness, mass, and strength are distributed throughout the structure. The analysis compares plan-irregular building models featuring varying vertical irregularities. All models were analysed using STAAD.Pro V8i software.
Base shearfrequencydisplacementVertical irregularitiesStaad Pro
Research ArticleStructural & Earthquake Engineering
Choppa Sravan Kumar ()·Hrishikesh Dubey ()
This research focuses on examining how different forms of vertical irregularities influence the seismic performance of reinforced concrete (RC) structures. The main objective is to conduct both Response Spectrum Analysis (RSA) and Pushover Analysis on RC building frames exhibiting vertical irregularities, and to compare their seismic behavior with that of regular configurations. The study specifically considers mass irregularities and other forms of vertical discontinuities. It was observed that the storey shear force reaches its peak at the lower storeys, particularly at the base, and progressively reduces in the upper levels. Notably, structures with mass irregularities exhibited higher base shear values compared to their regular counterparts, indicating a greater demand on lateral load resistance.
