Advancements in Civil Engineering & Technology最新文献_第3页

Building to the Sky and the Height Paradox 建筑向天空和高度悖论

Advancements in Civil Engineering & Technology Pub Date : 2019-05-28 DOI: 10.31031/ACET.2019.03.000560

Ali Mm

引用次数: 0

Recent Achievements and Challenge of Long Span Bridges in China 中国大跨径桥梁近年来的成就与挑战

Advancements in Civil Engineering & Technology Pub Date : 2019-05-23 DOI: 10.31031/ACET.2019.03.000559

H. Tan, Xiuping Wu

引用次数: 1

Technology of Concrete: Reality and Perspectives 混凝土技术:现实与展望

Advancements in Civil Engineering & Technology Pub Date : 2019-05-20 DOI: 10.31031/ACET.2019.03.000558

Pshenichny Gn

{"title":"Technology of Concrete: Reality and Perspectives","authors":"Pshenichny Gn","doi":"10.31031/ACET.2019.03.000558","DOIUrl":"https://doi.org/10.31031/ACET.2019.03.000558","url":null,"abstract":"The fundamental principle of the concrete technology (reinforced concrete) “with predefined properties” was formulated in the 60s of the last century. It says that the production process must be “directed”, i.e. by all means coordinated with the mechanism of portland cement hardening. A negative answer to the question whether we have reached this technological “orientation” is obvious after many decades. The existing domestic (threestage) and western (five-stage) clinker cementation hardening models, which describe the development of the process according to the scheme “dissolution-colloidation-crystallization”, do not adequately reflect the essence of the phenomenon. The confirmation of the current theoretical uncertainty is the mass of chronic “white spots” in these theories. The ultimate in technological excellence, for example, is the complete dissolution of cement grains, which contradicts the experiment, indicating the invariability of their dimensions, the constancy of the hydrate shell thickness (“hydrated rim” in the terminology of Western researchers) on any (large, medium, small) cement corpuscles . The morphology of hydrated cement grains is not clear. What is this object? Is it an amorphous, crystalline product or some symbiosis? The logic and meaning of the «induction period» are not clear too. Such important moments in practical terms, such as «discontinuity» (according to Kind [1]) and “sawtoothness” (according to Malinina [2]) of strength growth are forgotten. The “wavy” change in the number of properties and phenomena accompanying cement hardening (the chemical composition and alkalinity of the pore fluid, the electrophysical parameters, the humidity state, etc.) is completely inconceivable. The reason of the worsening of the contact zone of concrete and reinforced concrete is mysterious too. The determining characteristic of cement concrete is strength, what looks unconvincing against the background of marked sawtoothness.","PeriodicalId":163364,"journal":{"name":"Advancements in Civil Engineering & Technology","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134571579","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

On the Education of Engineer in the 19th Century: A Note from the Studies about Leonardo Da Vinci 论19世纪的工程师教育——从列奥纳多·达·芬奇研究述评

Advancements in Civil Engineering & Technology Pub Date : 2019-05-15 DOI: 10.31031/ACET.2019.03.000557

Elena Gianasso

引用次数: 0

Short Review on Incremental Dynamic Analysis and Fragility Assessment 增量动态分析与脆弱性评价综述

Advancements in Civil Engineering & Technology Pub Date : 2019-04-22 DOI: 10.31031/ACET.2019.03.000556

M. Miari, F. M. Nazri

引用次数: 1

Urgent Need for a Performance-Based Approach for Seismic Assessment and Design of Fastenings Used in Structural Applications 迫切需要一种基于性能的方法来评估和设计结构应用中的紧固件

Advancements in Civil Engineering & Technology Pub Date : 2019-04-22 DOI: 10.31031/ACET.2019.03.000555

Akanshu Sharma

引用次数: 5

An Undergraduate Study of a Fluids Time-To- Drainage Device 一种流体时间引流装置的本科生研究

Advancements in Civil Engineering & Technology Pub Date : 2019-03-06 DOI: 10.31031/ACET.2019.03.000554

Hasan Ukra, Anna Gavalyan, Ali Alkaribani, Trisheendran S Tenakaran, Ahmed Aljsaar, Danah Abdulkareem, Abdallah Alsaidy, Emanuel De Los Santos, A. Almutairi, D. Boyajian, T. Zirakian

引用次数: 0

Creation of Formula to Predict Time and Cost Benefit by Using 5D BIM Rather than Traditional Method of Construction 利用5D BIM代替传统的施工方法，创建预测时间和成本效益的公式

Advancements in Civil Engineering & Technology Pub Date : 2019-02-14 DOI: 10.31031/ACET.2019.03.000552

Arif Khan, Ayesha Muneeb

{"title":"Creation of Formula to Predict Time and Cost Benefit by Using 5D BIM Rather than Traditional Method of Construction","authors":"Arif Khan, Ayesha Muneeb","doi":"10.31031/ACET.2019.03.000552","DOIUrl":"https://doi.org/10.31031/ACET.2019.03.000552","url":null,"abstract":"Building Information Modeling (BIM) is becoming a well-known established collaboration process in the construction industry. Owners are increasingly requiring BIM services from construction managers, architects and engineering firms. Many international construction firms are now investing in “BIM” technologies during bidding, preconstruction, construction and post construction. The goal of this research is to understand and examine the uses and benefits of 5D BIM for construction project of Pakistan. There are three objectives to this research. First is to make comparative analysis of an existing high rise building with reference to scheduling and cost as done by traditional method. Second is to develop 5D model of high rise building with help of autodesk revit and autodesk navisworks. Third is to make 3D models of 20 and 30 storey building on autodesk revit and navisworks by making 10 storey building as reference to overview the comparative benefits of schedule and cost with help of 5D BIM and development of formula with reference to schedule and cost for any number of stories of building. First an existing commercial building was selected for comparative study between 5D BIM analysis and traditional CAD methods. 5D Building information model was created and analyzed. Furthermore, the BIM-based schedule and cost was integrated to 5D model. Finally, the project concluded with an analysis on the advantages of 5D BIM and its implementation barriers in construction industry of Pakistan. The study concludes that despite of few shortcomings and barriers in 5D BIM implementation, BIM and 5D construction processes are concluded as a promising tool for construction planning. 5D BIM modeling helps to reduce time and cost of a project and provide efficient planning by better visualization of construction work, better communication among project teams, detailed and accurate work plans and quantity takeoffs. Also, with increase in number of stories time and cost benefits also increase in 5D BIM.","PeriodicalId":163364,"journal":{"name":"Advancements in Civil Engineering & Technology","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121086177","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

Carbon Nanofiber Aggregate Sensors for Sustaining Resilience of Civil Infrastructures to Multi-Hazards 用于维持民用基础设施对多种灾害恢复能力的碳纳米纤维聚集体传感器

Advancements in Civil Engineering & Technology Pub Date : 2019-02-06 DOI: 10.31031/acet.2019.03.000551

A. Gautam, Y. Mo, Yuhua Chen, Jinghong Chen, Bhagirath Joshi

{"title":"Carbon Nanofiber Aggregate Sensors for Sustaining Resilience of Civil Infrastructures to Multi-Hazards","authors":"A. Gautam, Y. Mo, Yuhua Chen, Jinghong Chen, Bhagirath Joshi","doi":"10.31031/acet.2019.03.000551","DOIUrl":"https://doi.org/10.31031/acet.2019.03.000551","url":null,"abstract":"Natural disasters (earthquakes, hurricanes, tornadoes. and floods) or man-made disasters or accidents (missile/aircraft impacts, fires. and explosions) lead to substantial damage on critical infrastructures and communities and have social, economic, and environmental consequences. As the safety of civil infrastructures is critically important, effective structural health monitoring (SHM) systems of infrastructures should be developed to avoid and mitigate the risks caused by various types of hazards. Carbon Nanofiber Aggregates (CNFAs) developed at the University of Houston are piezoelectric aggregates that can respond uniquely to different multi-hazards. This unique response makes this a sensor capable of being used in the Structural Health Monitoring (SHM) of civil infrastructures in each of the multi-hazards. This paper explains how CNFAs can be used for multi-hazard monitoring and discusses the ultra-low noise, high sensitivity of CNFA sensor electrical interfaces, radiation-tolerant wired and wireless communication capabilities of the CNFA sensor which leads to the very possible development of the wireless CNFAs’ real-time SHM system for sustaining resilience of civil infrastructures to multi-hazards. Adv Civil Eng Tech Copyright © Mo YL 2/7 How to cite this article: Avinash G, Mo YL, Yuhua C, Jinghong C, Bhagirath J. Carbon Nanofiber Aggregate Sensors for Sustaining Resilience of Civil Infrastructures to Multi-Hazards. Adv Civil Eng Tech .3(1). ACET.000551.2019. DOI: 10.31031/ACET.2019.03.000551 Volume 3 Issue 1 infrastructures. Moreover, the wireless data collection technique is developed to further equip the research with the advanced and latest science and technology related to this topic.","PeriodicalId":163364,"journal":{"name":"Advancements in Civil Engineering & Technology","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133240345","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: 5

Evaluation and Strengthening of an Eight-Storey Existing Reinforced Concrete Building in Abha City, KSA 沙特阿拉伯阿卜哈市一座八层既有钢筋混凝土建筑的评价与加固

Advancements in Civil Engineering & Technology Pub Date : 2019-01-18 DOI: 10.31031/ACET.2019.02.000550

M. Ismaeil, A. Hassaballa, M. Laissy, Isam Eldin Kamal, F. M. Adam

{"title":"Evaluation and Strengthening of an Eight-Storey Existing Reinforced Concrete Building in Abha City, KSA","authors":"M. Ismaeil, A. Hassaballa, M. Laissy, Isam Eldin Kamal, F. M. Adam","doi":"10.31031/ACET.2019.02.000550","DOIUrl":"https://doi.org/10.31031/ACET.2019.02.000550","url":null,"abstract":"Saudi Arabia’s kingdom is not free from seismic tremors. It has encountered numerous quakes amid the ongoing history, and the past investigations on this field exhibited this contention. Many existing structures in Abha City have not been intended to oppose seismic forces. Moreover, it is imperative to contemplate the reaction of these structures under seismic conditions. Likewise, there is a lack in the examinations done in this field identified with Abha City. Consequently, existing structures ought to be assessed with respect to their ability for opposing expected seismic impacts before recovery works. Investigation was completed by utilizing auxiliary examination program (SAP2000) [1] with the utilization of static technique proposed by the Saudi Building Code (SBC) [2] to decide the reaction of regular multi-storey structures made of strengthened cement because of quake ground loads. Objective of this paper is to assess the execution of existing multi-storey RC working in Abha City under seismic loads. To accomplish this goal, a 3D model for eight-storey RC building was developed utilizing SAP2000 examination program, though tremor loads were determined by static technique. Outcomes got from this paper inferred that the present plan of existing structures in Abha city is dangerous for the present seismicity of Abha territory. At last, it has been verified that RC shear walls signified a truly reasonable procedure, as a fortifying method for existing RC structures, to lessen the seismic defenselessness of these structures.","PeriodicalId":163364,"journal":{"name":"Advancements in Civil Engineering & Technology","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127326201","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: 3