scholarly journals Wooden Extra Stories in Concrete Block of Flats in Finland as an Ecologically Sensitive Engineering Solution

2021 ◽  
Author(s):  
Markku Karjalainen ◽  
Hüseyin Emre Ilgın ◽  
Dennis Somelar
Keyword(s):  
Ecological Engineering ◽  
Concrete Block ◽  
Project Planning ◽  
Construction Technology ◽  
Construction Costs ◽  
Implementation Planning ◽  
Information Updates ◽  
Potential Improvement ◽  
Property Condition ◽  
City Plan

This chapter examined the various stages and benefits of wooden extra stories from the perspective of Finnish housing and real estate companies through interviews with professionals involved in these projects. Key findings highlighted are as follows: (1) in the feasibility study, project planning primarily focuses on property condition and potential improvement targets as well as other considerations, for example, compliance with current regulations and parking arrangements; (2) in the project planning, application of extra stories is thoroughly examined, and construction costs, profits, and the sale of building rights are discussed; (3) in implementation planning, issues related to building rights, city plan change, and conditions of the company that manages the property play an important role; and (4) during construction, frequent information updates are made to residents regarding the site arrangements and the construction program. Wooden extra floor construction, which requires commitment, investment, and cooperation among the interested parties, has great potential in construction technology, contracting mechanisms, and ecological engineering solutions. It is believed that this chapter will increase the dissemination of wooden extra stories, thus contributing to the greater use of more sustainable materials in renovation projects and the ecologically sensitive engineering approaches to meet the challenges arising from climate change.

scholarly journals Wooden Additional Floors in Old Apartment Buildings: Perspectives of Housing and Real Estate Companies from Finland

Buildings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 316
Author(s):  
Markku Karjalainen ◽  
Hüseyin Emre Ilgın ◽  
Dennis Somelar
Keyword(s):  
Real Estate ◽  
City Planning ◽  
Project Planning ◽  
Construction Technology ◽  
Existing Building ◽  
Implementation Planning ◽  
Load Carrying ◽  
Plan Change ◽  
City Plan ◽  
Flow Of Information

This paper examined various stages and advantages of wooden additional floors from the perspective of Finnish housing and real estate companies through interviews with professionals involved in these projects. Main findings highlighted: (1) commercial conditions should be carefully analyzed for return on investment; (2) city plan change and the presence of a potential contractor and an expert were generally considered important issues; (3) considerations regarding city planning, parking spaces, load-carrying capacity, and new building codes were highlighted as critical factors for feasibility study; (4) existing building regulations and building rights regarding the subscription fee and tax issues should be considered during project planning; (5) city plan change and building rights with different tendering conditions were reported as important parameters in implementation planning; (6) an efficient flow of information between the parties involved was vital to the successful progress of the construction phase. Wooden additional floor construction, which requires commitment, investment, and cooperation between interested parties, has great potential regarding construction technology and contracting mechanisms. Additionally, this sustainable approach has many advantages concerning the environment, economy, energy efficiency, and aesthetics. In this sense, it is believed that this study will contribute to the diffusion of wooden additional floor construction in other countries besides Finland.

Research and Application for Gap-Type Conductor Tension Stringing Machines

2014 ◽  
Vol 536-537 ◽  
pp. 1566-1569
Author(s):  
Zhen Chen ◽  
Kun Bai ◽  
Jun Wang
Keyword(s):  
Construction Technology ◽  
Construction Costs ◽  
Construction Period ◽  
Construction Task

Gap-type conductor stringing and currently existing conventional tension stringing construction technology are not identical, explore two old wires with a new gap-type conductor, which is two-pulling-one wire stringing construction technology. In this paper two-pulling-one running board is designed and manufactured to meet the stringing construction technology. The experiment results show that the system greatly improves the efficiency of the stringing, at the same time reduces construction costs, saves a lot of manpower and time, ensures the construction period, safely and efficiently completes the construction task.

Aerated Concrete Block Filler Wall Construction Technology and Quality Control of Preventive Measures

2014 ◽  
Vol 1004-1005 ◽  
pp. 1492-1495
Author(s):  
Li Mei Wang ◽  
Feng Mei Pi ◽  
Ya Jie Yuan
Keyword(s):  
Preventive Measures ◽  
Material Design ◽  
Concrete Block ◽  
Effective Control ◽  
Wall Material ◽  
Construction Technology ◽  
Block Wall ◽  
Aerated Concrete ◽  
Wall Construction ◽  
Design Construction

Based on aerated concrete block wall material, design, construction three aspects under effective control, so as to avoid the cracking of the wall and carry out.

scholarly journals Stability analysis of concrete block retaining wall based on a scaled laboratory

2021 ◽  
Vol 331 ◽  
pp. 05013
Author(s):  
Deni Irda Mazni ◽  
Abdul Hakam ◽  
Jafril Tanjung ◽  
Febrin Anas Ismail
Keyword(s):  
Function Analysis ◽  
Water Pressure ◽  
Retaining Wall ◽  
Concrete Block ◽  
Failure Pattern ◽  
Wall Structure ◽  
Construction Costs ◽  
Third Order ◽  
Overall Stability ◽  
Sand Movement

A concrete block retaining wall is supported by its weight. This block retaining wall structure has some advantages, including lower construction costs, a water-permeable construction that produces less water pressure behind the wall, and a more flexible construction because it can follow the ground's contours. Rankine's theory is usually used to design this block retaining wall. According to this theory, the failure pattern behind the wall forms an angle of 450 + • /2 with the horizontal plane. The laboratory tests indicate that the pattern of failure or the pattern of sand movement behind the wall is similar to the letter S. From the sandy soil of failure pattern curve, look for a functional equation approximating the pattern. The equation of the function obtained is an equation of the third-order function. An analysis of the sliding, overturning, and overall stability block retaining wall is based on this equation of the cube function. Analysis for overall stability using the method of slices, dividing the failure area by several slices. These function equation order three is needed to get the area and length failure.

And the Wall came Tumbling Down - Analysis of Stucco Veneer Failure at Lee County Justice Center

1990 ◽  
Vol 7 (2) ◽  
Author(s):  
Stanley K. Ink
Keyword(s):  
Concrete Block ◽  
Construction Costs ◽  
County Jail ◽  
City Block ◽  
Lee County

The Lee County Justice Center is a five- and six-story masonry and concrete multi-sided building located in downtown Fort Myers, Florida. It is approximately 620 feet long by 250 feet deep at its extremities and covers a city block. The building contains courtrooms, offices and the Lee County jail (Figure 1). Pods A, B, C and the jail were constructed in 1983 and 1984 by one contractor. Pod D was constructed by a different contractor in 1984 and 1985. Construction costs were about $33 million. The architect and construction manager were the same throughout the entire construction. The building designers decided to insulate the building on the outside, because the jail required hard concrete block walls on the inside. The jail was only about one fourth of the entire building, but they let it dictate the wall design for the entire building.

scholarly journals Material Procurement in Construction Industry Problems and Solutions

2018 ◽  
Vol 7 (3.10) ◽  
pp. 31
Author(s):  
T Subramani ◽  
A Prabhu
Keyword(s):  
Construction Industry ◽  
Material Handling ◽  
Project Planning ◽  
Construction Technology ◽  
Materials Management ◽  
Planning And Control ◽  
Value Loss ◽  
Problems And Solutions ◽  
Long Time ◽  
And Control

Good project management in construction means efficient utilization of labor, material and equipment. Development of labor productivity have to be a first-rate and chronic challenge of those who are accountable for cost control of constructed facilities. Material handling, which includes procurement, inventory, shop fabrication and field servicing, requires special attention for cost reduction. The use of latest equipment and progressive strategies has made feasible wholesale adjustments in construction technology in current a long time. Groups which do no longer recognize the effect of diverse innovations and feature now not adapted to changing environments have justifiably been compelled out of the mainstream of construction activities. The frequent problems of construction industry, customers have an essential position to play. With the aid of its procurement methods, the purchaser impacts the manner a construction project is done, because the tactics affect the form of the project delivery system. What sort of procurement procedures are perceived rational, for one, depends at the underlying assumptions about the characteristic of procurement. A recognized guideline in Lean construction (LC) is that production must be conceived along with transformations (T), flow (F), and value generation (V). Alternatively, it is visible necessary to recognize and cope with the risk of value loss with an identical diligence as the other issues had been to date. Materials management plays an important role in project planning and control. Materials represent a major expense in construction, so minimizing procurement or purchase costs.   

scholarly journals Ecological Engineering and Restoration of Eroded Muddy Coasts in South East Asia: Knowledge Gaps and Recommendations

2021 ◽  
Vol 13 (3) ◽  
pp. 1248
Author(s):  
Huynh Van Tien ◽  
Nguyen Tuan Anh ◽  
Nguyen Tan Phong ◽  
Mai Le Minh Nhut
Keyword(s):  
Ecological Engineering ◽  
Cost Effective ◽  
Lessons Learned ◽  
Construction Costs ◽  
Ecological Processes ◽  
Intervention Models ◽  
Passive Restoration ◽  
Sea Mud ◽  
The One ◽  
Restoration Model

Ecological engineering (EE) was employed for developing strategies for stabilizing eroded muddy coasts (EMCs). However, there was a limited analysis of these EE strategies with respect to design, performance, and lessons learned. This study employed a critical review for addressing the limitations. There were four EE models designed with different restoration interventions for stabilizing EMCs. The models using active interventions have not been cost-effective in controlling erosion because the interventions failed to achieve their goals or were costly and unnecessary. Of the two passive intervention models, the one with structures constructed from onshore proved to be more cost-effective in terms of construction costs, the survival rate of transplanted seedlings, and levels of sea mud accumulation. Interventions with adequate consideration of the muddy coastal ecological processes and the ecological reasoning for the positioning of these interventions play a crucial role in stabilizing EMCs. A passive restoration model using gradually expanded interventions should be promoted in order to ensure sustainable management of EMCs in the future.

scholarly journals Technical and Economic Criteria to Select Pavement Surfaces of Port Handling Plants

Coatings ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 126 ◽  
Author(s):  
Paola Di Mascio ◽  
Giuseppe Loprencipe ◽  
Laura Moretti
Keyword(s):  
Service Life ◽  
Asphalt Pavement ◽  
Cost Effective ◽  
Concrete Block ◽  
Concrete Pavement ◽  
Point Of View ◽  
Construction Costs ◽  
Economic Implications ◽  
Conflicting Objectives ◽  
Effective Option

A port is an intermodal system in which many logistics activities requiring properly constructed areas occur. The large extension of these areas poses a major problem in choosing materials with technical and economic implications. Choice and design of pavements are directly related to the port handling systems and procedures for the disposal of the cargo units. The paper presents the design and verification procedures for three equivalent pavements for a handling pavement in an Italian medium-sized port trafficked by reach stackers moving containers. An asphalt pavement, a concrete pavement, and a concrete block pavement have been considered during the 20-year service life. Empirical and analytical methods have been adopted to design and verify the pavements. The structures have been examined in terms of economic concerns during the overall service life, considering both construction and maintenance costs, in order to determine the most cost-effective option. The results demonstrate the inappropriateness of asphalt pavement, in the examined case, from a construction costs point of view. Furthermore, the overall discounted costs show an inversion of convenience between block concrete pavement and cast in situ concrete: the latter is the cheaper solution. The proposed methodology can balance often conflicting objectives in matters of durability and funds management, providing answers to a complex topic.

scholarly journals On Planning and Managing the Preservation of Historical Buildings

10.14311/462 ◽  
2003 ◽  
Vol 43 (4) ◽  
Author(s):  
Č. Jarský
Keyword(s):  
Quality Control ◽  
Project Planning ◽  
Construction Technology ◽  
Historical Buildings ◽  
Time Analysis ◽  
Reconstruction Process ◽  
Historical Significance ◽  
Network Diagram ◽  
Building Process ◽  
Integrated Project

The process of preserving and reconstructing historical buildings poses several specific questions and raises problems which must be solved in the planning and management stage of the building process - from questions of architectural and art-historical significance, via the future purpose of use of the building, links to the surrounding buildings, environmental questions, questions of cost, time analysis, and quality assurance problems. Many of these problems can be solved with the help of a computer model of the course of the rehabilitation and reconstruction of the building created by a construction technology network diagram. The CONTEC integrated project planning, management and quality control system based on these diagrams has been used for bidding, planning and managing the reconstruction process of several significant historical buildings in Prague and other cities.

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