Construction Method Research Articles

풍납토성 기초 토목기술 비교연구 —중국의 사례를 중심으로—

This paper analyzes the foundational construction techniques of Pungnap Earthen Fortress in Seoul and compares them with examples of Chinese earthen fortresses, exploring their respective characteristics. Elements such as the position and structure of the fortresses, which had previously been overlooked, were examined, and commonalities were derived from components such as foundational planning, stone or gravel bedding, wooden pilings, use of the earthen mound method, and the use of stone facings on walls. Through this, we inferred the process of the introduction of Pungnap Earthen Fortress's foundational techniques and inspected the progression of foundational engineering. A significant number of foundational construction techniques used in the construction of Pungnap Earthen Fortress were identified as techniques commonly used in China at the time for the construction of earthen fortresses, bridges, and harbor facilities. Especially, the discovery of these techniques in the regions of Liaodong and Xuantu provides clues about the origin and transmission routes of the foundational techniques of Pungnap Earthen Fortress. Furthermore, the construction method using the earth mound method is not found frequently in China as a comparable case, leading to the assessment that it evolved as a unique foundational technique within Baekje. In essence, Baekje adopted foreign techniques and combined them with indigenous methods to complete the large-scale structure known as Pungnap Earthen Fortress. The foundational techniques utilized in the construction of Pungnap Earthen Fortress continued to be applied and developed in the outer city wall, Buyeo and the mountain fortresses of the later periods of Baekje, and were eventually transmitted to Japan.

『營造法式』 축성도구 연구

The term ‘Yeongjung Pillar (永定柱)’ is used in Korean archaeology to refer to the wooden pillar used to fix wooden blocks when applying the board frame construction method. This use begun in the mid-80s based on the record of Yingzao Fashi (營造法式). However, the record does not correspond with archaeological data in the sense that the wooden pillar used during board frame construction is not equivalent to the Yeongjung Pillar. This paper therefore analyzes the wooden pillar, the ‘Yeongjung Pillar’ of Yingzao Fashi, and other construction materials. In the case of the wooden pillar, the names that were used to refer to it from ancient times, as well as its different forms, were analyzed, in association with construction method and function. To highlight the mistaken interpretation of Yingzao Fashi, the function of the Yeongjung Pillar and other construction materials were examined. These materials were then classified according to various factors. The results of the analysis demonstrate that there are common elements shared between the wooden pillar and the Yeongjung Pillar of the board frame construction method, but differences could also be observed in terms of in size, position during construction, structure, construction or disassembling method, function, and textual records. These results go against the conception that the wooden pillar of the board frame construction method equals the Yeongjung Pillar; the two are clearly different. Finally, the wooden pillar has sometimes been found in the wall, as it was not disassembled after the board frame construction process. In this case, it functioned as the center of the wall or as a Yeongjung Pillar. The functional similarity of the two may be related to the mid-wall column of the wall of dwellings or structures that emerged in the Neolithic Age. The wooden pillar of the board frame construction method may have been derived from the mid-wall column technique. After the Neolithic Age, the wooden pillar that combined the function of the Yeongjung Pillar disappeared, and the two were separated from each other. The Yeongjung Pillar continually developed after its emergence from the midwall column, and it was expansively applied to wall construction. It became institutionalized as the essential civil engineering technology in castle construction with the compilation of the architecture book Yingzao Fashi of the North Song Dynasty.

A Compound Approach for Monitoring the Variation in Wind Turbine Power Performance with SCADA Data

The performance of wind turbines directly determines the profitability of wind farms. However, the complex environmental conditions and influences of various uncertain factors make it difficult to accurately assess and monitor the actual power generation performance of wind turbines. A data-driven approach is proposed to intelligently monitor the power generation performance evolution of wind turbines based on operational data. Considering the inherent nonlinearity and structural complexity of wind turbine systems, a data-derived characteristic construction and dimensionality reduction method based on KPCA is adopted as a prerequisite. Additionally, an AdaBoost-enhanced regressor is applied to wind power prediction with adequate inputs, and day-oriented deviation indicators are further constructed for quantifying performance fluctuations. The final validation phase includes two application cases: In the first case, the results show that the proposed method is sensitive enough to capture the early characteristics of blade damage faults. In the second case, an uncertainty error within ±0.5% demonstrates that the proposed method has high-level accuracy in the quantitative assessment of the power performance and good practical effectiveness in real engineering applications.

Structure Design and Strength Analysis of the Glass Reinforcement Plastic (GRP) Malay Traditional “Perahu Bedar”

The Perahu Bedar, a traditional fishing boat in the Terengganu region of Malaysia, has been historically crafted from Cengal wood. In response to challenges posed by wood scarcity and limitations in skilled craftsmen, this study pioneers the exploration of Glass Reinforced Plastic (GRP) as a novel alternative material for constructing the traditional Perahu Bedar, measuring 4.32 meters in length. Through a rigorous analysis, the research delves into the structural design intricacies and strength attributes of the GRP Perahu Bedar, marking a significant departure from conventional wood-based construction methods. The study conducts a comprehensive analysis of the structure design and strength characteristics of the GRP Perahu Bedar. The weight, buoyancy force, and load distribution along the boat are analyzed. The data shows varying weight and buoyancy forces along the stations, with positive load values indicating upward forces contributing to buoyancy and negative load values representing downward forces. This analysis provides insights into the boat’s stability and distribution of forces. The sheer force and bending moment along the Perahu Bedar are evaluated. The sheer force values gradually increase or decrease along the boat, while the bending moment is highest at the midsection and decreases towards the ends. These results indicate the distribution of forces and stress on the boat’s structure, aiding in understanding its integrity and stability. The Factor of Safety (FoS) analysis demonstrates a FoS value of 2.2368, indicating a safety margin greater than 1. This suggests that the GRP Perahu Bedar design meets safety requirements and can withstand applied 
 
 stresses without exceeding yield strength. The FoS value provides assurance of structural integrity and safety during normal operating conditions. In summary, this study underscores the groundbreaking potential of Glass Reinforced Plastic (GRP) as a viable alternative to traditional wooden Perahu Bedar due to very high cost of Cengal Wood (wood that been used to build Peahu Bedar). By meticulously analyzing critical factors such as weight, buoyancy, load, shear force, bending moment, and Factor of Safety (FoS), the research offers invaluable insights into the structural integrity and safety aspects of GRP Perahu Bedar. These revelations not only herald a new era of sustainable and cost-effective boatbuilding practices but also serve as a crucial step towards safeguarding and perpetuating the rich maritime heritage of the region.

ARCHITECTURE OF RESIDENTIAL BUILDINGS IN ASTANA 30-s-50s XX CENTURY

The study of the architecture of residential buildings is of great scientific interest, and the topic of housing always remains one of the most relevant in the development of society. The article analyzes the features of the formation of the architecture of residential buildings in Astana in the period from 1936 to 1954, which developed under the influence of socio-economic factors, political decisions, architectural and urban planning tasks of the first half of the 20th century. The study involves the use of a method of analysis, study and field survey of residential buildings in Astana of the 1930s-1950s. The article is based on documents collected by the author in 2014-2015 from the funds of the National Archive of the Republic of Kazakhstan, the State Archive of the city of Astana, the archive of the real estate center in the city of Astana, as well as materials from field surveys and photographic recordings of residential buildings. The theoretical foundation for the study was the works of Kazakh scientists: B.A. Glaudinova, M.G. Seydalina, A.S. Karpykova, T.K. Basenova, B.U. Kuspangalieva, K.I. Samoilova, K.G. Tokzhumanova, etc. As a result of the study, three periods of formation and development of the architecture of residential buildings in Astana were identified: pre-war (1936-1940s); war period (1941-1945); post-war period (1946-1953). Within the established periods, the characteristic features of the architecture of residential buildings in the city are determined: urban planning solutions for residential development, typological methods of housing construction and architectural style.

Geometric space construction method combined of a spline-skinning based geometric variation method and PCA dimensionality reduction for ship hull form optimization

In the construction stage of ship hull geometric space, the representation and variation of hull forms pose challenges due to the complex nature of the geometry and the necessity for enhanced flexibility in space. In this study, we utilize T-spline technology for the representation of ship hulls, enabling a unified parameter domain with a reduced number of control points to effectively depict the entire hull surface. Furthermore, we introduce a method for geometric variation based on the T-spline parameter domain, which permits both local and global alterations, thus offering greater flexibility in modifying the geometry. By leveraging the T-spline representation and the geometric variation method, we developed a hybrid geometric approach for constructing the geometric space, which significantly increased the geometric flexibility in ship hull optimization. A geometric space characterized by a high degree of geometric freedom typically requires the use of numerous optimization variables and incurs considerable computational resource consumption. In this research, we apply a linear dimensionality reduction method, principal component analysis, to decrease the dimensionality of the geometric space. This method effectively preserves the original geometric design space, thereby eliminating the need for performance analyses. The numerical optimization results clearly indicate that the proposed method significantly enhances optimization efficiency.

A filtered beam search based heuristic algorithm for packing unit circles into a circular container

A constructive method for addressing the circular packing problem is proposed based on the filtered beam search framework, with the goal of minimizing the radius of a circular container that can hold N unit circles without overlapping. To position each circle in the container, the proposed method employs a corner-occupying placement strategy. Since there are often multiple possible positions for a circle to be packed, the method employs two steps to select the best placement. The positions are quickly assessed in the first phase, known as the filtering phase. In the second phase, known as the beam selection phase, a computationally intensive strategy is used to evaluate the positions more accurately. To balance the accuracy and efficiency of the method, two parameters are utilized, namely filterwidth and beamwidth. These parameters control the pruning operations in the tree-based search procedure. The performance of the proposed method is assessed utilizing two sets of 19 publicly available instances from the literature, and a comparative analysis is conducted against five constructive-based algorithms and one global optimization method. The computational results demonstrate its competitive performance, surpassing all constructive-based reference algorithms. Furthermore, a thorough investigation is conducted into the suggested method's parameter settings and essential components.

Designing efficient randstrobes for sequence similarity analyses.

Substrings of length k, commonly referred to as k-mers, play a vital role in sequence analysis. However, k-mers are limited to exact matches between sequences leading to alternative constructs. We recently introduced a class of new constructs, strobemers, that can match across substitutions and smaller insertions and deletions. Randstrobes, the most sensitive strobemer proposed in Sahlin (Effective sequence similarity detection with strobemers. Genome Res 2021a;31:2080-94. https://doi.org/10.1101/gr.275648.121), has been used in several bioinformatics applications such as read classification, short-read mapping, and read overlap detection. Recently, we showed that the more pseudo-random the behavior of the construction (measured in entropy), the more efficient the seeds for sequence similarity analysis. The level of pseudo-randomness depends on the construction operators, but no study has investigated the efficacy. In this study, we introduce novel construction methods, including a Binary Search Tree-based approach that improves time complexity over previous methods. To our knowledge, we are also the first to address biases in construction and design three metrics for measuring bias. Our evaluation shows that our methods have favorable speed and sampling uniformity compared to existing approaches. Lastly, guided by our results, we change the seed construction in strobealign, a short-read mapper, and find that the results change substantially. We suggest combining the two results to improve strobealign's accuracy for the shortest reads in our evaluated datasets. Our evaluation highlights sampling biases that can occur and provides guidance on which operators to use when implementing randstrobes. All methods and evaluation benchmarks are available in a public Github repository at https://github.com/Moein-Karami/RandStrobes. The scripts for running the strobealign analysis are found at https://github.com/NBISweden/strobealign-evaluation.

Between Two Empires: Railway Construction in the Far East in the Late Imperial Period

Based on a wide range of archival sources, this article analyses the history of the creation and functioning of the Nikolskaya branch of the Ussuri Railway in the conditions of the Russian-Chinese transborder of the eastern approach to the Chinese Eastern Railway (CER). Designed to connect the CER with the Russian railway network, this branch was significant in the late nineteenth and early twentieth centuries from the point of view of ensuring the connection of the Trans-Siberian Railway with Vladivostok before the construction of a bypass along the Amur. The concept of “transborder” makes it possible to fit this plot into the broader problem of the formation of contact sociocultural zones along the long land border between Russia and China. The unification of the roads of the two empires into a single railway network led to an increase in migration flows, the founding of new settlements, and the development of civil and military infrastructure, elements of which can be still seen today. At the same time, for a long time, researchers paid no attention to the construction of the connecting branches of the CER and the Trans-Siberian Railway, excluding the adjacent territories from the general narrative of transborder issues, which makes the study particularly relevant. At the same time, archival materials make it possible to characterise not only the difficulties that the Russian government encountered during the construction of the connecting branch but also the initial stage of the formation of a network of settlements along it, their development, as well as the specifics of existence in transborder conditions. The listed issues were raised not only in the Committee of the Siberian Railway, the Ministry of Railways, and the Ministry of Finance, which directly supervised the construction and determined the volume of financing, but also in the CER Society. From the financial point of view, turning to the method of joint road construction using private and state funds, previously tested on other railways in the country, would become one of the arguments for leasing the Ussuri Railway to the CER Society.

Electrical Resistivity Behavior of Saline Soil under Low-Temperature Conditions

Freeze-thaw cycling of frozen soils is known to be the cause of various engineering failures of infrastructure in cold regions. Researchers found that electrical resistivity methods outperform traditional ground surveying methods in frozen soils for their greater convenience and cost-effectiveness. However, detailed investigation into the relationship between the electrical resistivity of soil and a variety of soil properties is still needed. In this study, a series of laboratory experiments using the Wenner method were conducted to determine the relationship between soil electrical resistivity and soil geotechnical properties such as initial water content and pore fluid concentration under freeze-thaw conditions. Cylindrical soil samples undergo artificial freeze-thaw cycles to a temperature as low as −70°C, and electrical resistivity and temperature values are recorded simultaneously. Measurement results are summarized for curve fitting, and a statistical model showing relationship between electrical resistivity and temperature during freezing and thawing was given. Above freezing point, the log of electrical resistivity had a linear relationship with temperature. Below freezing point and above −15°C, the log of electrical resistivity had a square root relationship with temperature. Different trends in electrical resistivity change in extremely low-temperature regions (from −15°C to −70°C) are also discussed. In extremely low-temperature regions, the electrical resistivity of frozen soils did not monotonously increase with lower temperature, which may be because of increasing salt concentration in the unfrozen water phase. The findings of this study are expected to bring more insights to frozen soil structure, and assist in geophysical surveying in cold regions and construction methods utilizing ground freezing.

A Characterization of Procyclic Groups via Complete Exterior Degree

We describe the nonabelian exterior square G∧^G of a pro-p-group G (with p arbitrary prime) in terms of quotients of free pro-p-groups, providing a new method of construction of G∧^G and new structural results for G∧^G. Then, we investigate a generalization of the probability that two randomly chosen elements of G commute: this notion is known as the “complete exterior degree” of a pro-p-group and we will use it to characterize procyclic groups. Among other things, we present a new formula, which simplifies the numerical aspects which are connected with the evaluation of the complete exterior degree.

New Series of D-efficient Covariate Designs under BIBD set-up

In the present study, an effort has been made to construct D-efficient covariate designs in BIB design (v, b, r, k and λ) set-up when either one of k and r is odd or both k and r are odd numbers and Hadamard matrix of order k i.e., Hk does not exist. For all the developed D-efficient designs, the covariates are mutually orthogonal to each other. The methods of construction of D-efficient covariate designs are developed with the help of a new matrix viz., Special Array (Das et. al., 2020). In this article, the series of developed D-efficient covariate designs are not available in the existing literature. International Journal of Statistical Sciences, Vol.24(1), March, 2024, pp 15-30

Evolution of Project-Based Collaborative Networks for Implementing Prefabricated Construction Technology: Case Study in Shanghai

Prefabricated construction (PC) is considered to be a low-carbon construction method. Implementing prefabricated construction projects (PCPs) requires multiple industry organizations to participate and collaborate. As different PCPs are initiated and implemented, industry organizations will gradually gather into a complex and evolving collaborative network at the industry level based on specific collaboration relationships with different project backgrounds. The evolution of the collaborative network is related to how industry organizations interact with each other, and how PC-related knowledge and innovation has spread among organizations in the long term. However, the laws of network evolution and the micro effects that drive network evolution are still unknown. This study analyzes 236 prefabricated construction projects (PCPs) in Shanghai during 2015–2023, using the stochastic actor-oriented models (SAOM) method to explore how the macro structure of project-based inter-organizational collaborative networks for prefabricated construction (PC) technology implementation evolves over time, and how micro effects jointly support the evolution of the networks. The macro-level descriptive analysis of the network indicates that the collaborative network has become increasingly dense over time and continues to show a core–peripheral structure, with a small number of super-connected organizations. The micro-level SAOM analysis further reveals that the evolution of the collaborative network structure is driven by structure-based preferential attachment and geographic proximity effects, as well as attribute-based ownership similarity effect. This exploratory effort applies a network dynamics model to investigate the micro mechanism of the evolution of inter-organizational collaboration. The research results provide theoretical guidance and decision-making references for PC industry organizations to develop efficient network action strategies. In addition, it can help industry managers to formulate appropriate network management strategies.

Photothermal hydrogels for infection control and tissue regeneration.

In this review, we report investigating photothermal hydrogels, innovative biomedical materials designed for infection control and tissue regeneration. These hydrogels exhibit responsiveness to near-infrared (NIR) stimulation, altering their structure and properties, which is pivotal for medical applications. Photothermal hydrogels have emerged as a significant advancement in medical materials, harnessing photothermal agents (PTAs) to respond to NIR light. This responsiveness is crucial for controlling infections and promoting tissue healing. We discuss three construction methods for preparing photothermal hydrogels, emphasizing their design and synthesis, which incorporate PTAs to achieve the desired photothermal effects. The application of these hydrogels demonstrates enhanced infection control and tissue regeneration, supported by their unique photothermal properties. Although research progress in photothermal hydrogels is promising, challenges remain. We address these issues and explore future directions to enhance their therapeutic potential.

The method of research nuclear installation conversion at the decommissioning stage

The article examines the problem of forming scientific and technical programs for the conversion of research nuclear installations at the decommissioning stage, which arose in the aspect of justifying the possibility of extending the designated service life of all existing research nuclear reactors in Russia. To solve this problem, a methodology is proposed, which includes an information model and a process description of the necessary step-by-step actions, as well as a set of appendices in the form of documents justifying the most optimal ways to form a project for managing the quality of nuclear reactor conversion processes in relation to special life cycle conditions of specific nuclear reactors. The general view of the methodology is described: principles and methods of construction, structure. An example of the application of this technique in the conversion of the Hydra salt solution pulsed research reactor for the decommissioning stage is given. The purpose of the conversion of the Hydra reactor is to extend the designated service life by replacing non-repairable equipment ­ the vessel. The main criteria for justifying the residual life of the housing are formulated, which are the presence of a safety margin of the housing material, taking into account the accumulated fluence on more vulnerable areas and the justification of the integrity and tightness of the housing. For clarity, the conceptual information model of the methodology for justifying the safety of the process of replacing the Hydra reactor vessel is presented in the form of an Ishikawa diagram. The methodology represents a series of sequential scientific and technical activities, research and a finite number of step-by-step actions to achieve the final goal – extending the service life. The stages of the methodology for justifying the safety of replacing the Hydra reactor vessel are described, such as «clarification of initial data», «performing computational studies and laboratory experiments», «clarification of the requirements of methodological documentation» and «formation of a work plan» and «registration of licensing documents for operation».

Towards a Generalized Cayley–Dickson Construction through Involutive Dimagmas

A generalized construction procedure for algebraic number systems is hereby presented. This procedure offers an efficient representation and computation method for complex numbers, quaternions, and other algebraic structures. The construction method is then illustrated across a range of examples. In particular, the novel developments reported herein provide a generalized form of the Cayley–Dickson construction through involutive dimagmas, thereby allowing for the treatment of more general spaces other than vector spaces, which underlie the associated algebra structure.

Informativeness of echocardiography in inferior myocardial infarction at different stages of observation

Aim. to evaluate the informativeness of echocardiographic parameters in patients with acute inferior wall myocardial infarction of the left ventricle, who have undergone primary percutaneous coronary intervention, at discharge from the hospital and in the long-term period.
 Material and methods. Echocardiographic data was analyzed using speckle tracking technology in 144 patients with acute inferior myocardial infarction of the left ventricle before discharge and 2 years later. In the post-infarction period, 10 patients underwent magnetic resonance imaging and 15 patients underwent stress echocardiography.
 Results. Using the tree construction method, critical values of 7 ultrasound parameters were identified (for the left ventricle - ejection fraction, end-systolic volume index, global longitudinal and circular strains, for the right ventricle - tricuspid S', global longitudinal strain, free wall strain), which with a probability of 89.4% predict repeat revascularization.
 Identification of possible areas of myocardial fibrosis in the remote period by speckle-tracking echocardiography has a sensitivity of 46-57%, specificity of 68-76%, and negative predictive value of 74-87% relative to the gold standard detection of postinfarction scarring by magnetic resonance imaging.
 According to the results of stress-echocardiography, new zones of local contractility impairment registered after exercise were not accompanied by changes in segmental longitudinal deformation.
 Conclusion. The results of echocardiographic screening of patients with acute inferior myocardial infarction of the left ventricle using speckle tracking technology have high prognostic significance in assessing the likelihood of repeated revascularization at discharge and diagnostic information for verifying post-infarction fibrous changes in the long-term period.

Strategic Integration of a Vegetative Component on a Metal Roof Base: An Evaluation of Its Impacts on Thermal and Acoustic Performance in the Tropics

This paper attempts to ascertain the thermal and acoustic impacts of introducing a vegetative roof layer on insulated and uninsulated metal roofs for tropical climates, through field measurements in Skudai, Johor, Malaysia, that were conducted for both dry and wet days. Four small-scale roof modules were tested, namely an uninsulated metal roof (uiMDR), an insulated metal roof (iMDR), and two identical corresponding modules with an additional vegetative component (uiGR and iGR, respectively). Outdoor ambient temperature (Tamb) was the most influential correlated variable affecting the roof outer surface temperature (RTOS) in 50% of the assessed scenarios. On the selected dry day, the inter-quartile ranges (IQR) of iGR, iMDR, uiGR, and uiMDR were 6.21 °C, 8.32 °C, 6.69 °C, and 1.66 °C, respectively; the IQRs were 1.6 °C, 4.11 °C, 2.59 °C, and 1.78 °C, respectively, on the selected wet day. Based on design U-value calculations, iGR was better than iMDR and uiMDR for both dry and wet days. The U-value of uiGR was also better than iMDR under dry-day conditions. The Wilcoxon signed-rank test also indicated a statistically significant difference in the roof inner surface temperature (RTIS) measurements (p-value = 0.00) during Malaysian daylight hours, between 8.00 a.m. and 6.00 p.m., regardless of the weather. In terms of sound level reduction under dry-day conditions, the Kruskal–Wallis and Wilcoxon signed-rank tests showed statistically significant differences in sound level reductions, with iGR and uiGR performing better than iMDR and uiMDR (p-values = 0.00). The sound level reductions for iGR, iMDR, and uiGR were 51%, 32%, and 31%, respectively, while uiMDR experienced sound level amplifications by 6%, possibly due to the acoustic resonance effect. This proof of concept may encourage a broader application of extensive GRs in Malaysia using metal roofs, beyond the conventional RC base construction method.

Infrastructure digital twin technology: A new paradigm for future construction industry

The construction industry has traditionally been slow to adopt digital technology, resulting in inefficient workflows, frequent cost overruns, and delays. Moreover, its fragmented structure, inherent to market dynamics, exacerbates these challenges. Embracing digitalization and transitioning to Industry 4.0 can substantially enhance efficiency and productivity in construction through increased innovation and improved collaboration, ultimately reducing information gaps and data discrepancies. This study aims to assess the potential integration of digital twin technology across various construction stages, spanning from initial design to project delivery. Existing literature emphasizes the transformative power of digital twin technology in advancing building innovation and environmental sustainability. These virtual replicas are crucial in optimizing industrial manufacturing by harmonizing production processes and societal interactions. A focused examination of digital twin technology applications in construction highlights its ability to streamline coordination and facilitate data sharing among stakeholders. Property owners increasingly recognise the value of digital twin technology in local contexts, driving the digitization of design and collaboration methods in construction. Integrating digital twin technology right from a project's inception and extending it across design phases optimizes project delivery, enhances asset quality, and contributes to societal sustainability. As the nexus between digitalization and sustainability goals strengthens, the construction industry stands at the cusp of a significant transformative journey.

Enhancing the Construction Efficiency of Mid Rise Construction Projects with Partial Precast Construction Technique By IJISRT

The primary success parameter of every construction project is to achieve the better quality products, in the most reasonable time and at an economic cost. Along with the materials the method of construction used in mid rise construction projects contributes mainly for the cost of the project, time duration to complete the project & structural behavior such as stability, durability, quality etc. of these structures. This paper is about understanding the need for creating an awareness about the construction method to be adopted & enhancing the construction efficiency of mid rise construction projects with partial precast concrete construction technique. The study also speaks about the cost, time and quality effectiveness as compared to cast in-situ concrete construction techniques for the mid rise construction projects. The research findings shows that partial precast construction for mid rise construction projects is time and quality effective. Thus, we can achieve the cost effectiveness in partial precast concrete construction if the recommendations made are implemented.