Construction Cost Optimization of Buoyant Steel Structures

1985 ◽  
Vol 1 (04) ◽  
pp. 259-265
Author(s):  
David Baird ◽  
Ian E. Winkle
Keyword(s):  
Cost Estimation ◽  
Cost Optimization ◽  
Steel Structures ◽  
Construction Cost ◽  
Construction Time ◽  
General Method

The need for a rational means of comparing structures in terms of not only weight but also construction time and cost is established. This paper describes a database and methodology used at Glasgow University which is proposed as a general method for cost estimation and optimization. Examples are given to demonstrate the use and capabilities of the proposed method.

Prozesslücken modellbasierter Baukostenermittlung aus ausgewählter Akteurskonstellation/Process gaps of model-based construction cost estimation from selected constellation of actors

Bauingenieur ◽  
2021 ◽  
Vol 96 (03) ◽  
pp. 70-78
Author(s):  
Sara Bender ◽  
Christian Stoy
Keyword(s):  
Cost Estimation ◽  
Construction Cost ◽  
Model Based

Die korrespondierenden und bestimmenden Erfolgsfaktoren von Bauprojekten sind im Wesentlichen Qualität, Termine und Kosten. Die Kostenplanung ist deshalb bereits in frühen Phasen ein Bestandteil der Planungsleistung und hat maßgeblich Einfluss auf das Für und Wider einer Projektumsetzung. Im Rahmen der Digitalisierung wurden digitale Werkzeuge und neue Prozessabläufe in der Baubranche etabliert. Die modellbasierte Baukostenermittlung findet in BIM-basierten Bauprojekten Anwendung und bezieht Elementmengen und Informationen aus digitalen Bauwerksmodellen, die aus Objekten mit alphanumerischen und grafischen Eigenschaften bestehen. Die modellbasierten Kostenplanungsprozesse sind wissenschaftlich nicht hinreichend belegt und unterliegen keiner einheitlichen Vorgehensweise. Über Literaturquellen wird ein idealtypischer modellbasierter Soll-Kostenplanungsprozess eruiert, der durch Experteninterviews und deren Auswertung anhand einer qualitativen Inhaltsanalyse überprüft wird. Das Ergebnis ist ein Ist-Kostenplanungsprozess aus der aktuellen Praxis, der Abläufe beschreibt und Prozesslücken bei der Integration von Fachplanermodellen sowie Kostenkontrolle und Kostensteuerung aufzeigt.

Performance Based Optimized Design of Steel Structure

2014 ◽  
Vol 919-921 ◽  
pp. 199-202
Author(s):  
Lan Lan Zhang ◽  
Xiao Guang Song ◽  
Jing Juan Zhang
Keyword(s):  
Optimization Design ◽  
Design Principle ◽  
Steel Structure ◽  
Steel Structures ◽  
Construction Cost ◽  
Optimized Design ◽  
Structural System ◽  
Sizing Optimization ◽  
The Past ◽  
Whole Process

During the past two centuries, steel structure has become one of the most popular structural system. How to balance the construction cost, structural properties and other factors is an important aspect needed to be addressed. This paper describes the whole process of performance based optimized design of steel structure. First, the methods on the shape and sizing optimization, cost and others are introduced. Then, the multi-object optimization of steel structure is presented, in which the main aspects of the optimizations are studied. Finally, the design principle and the analytical steps for the multi-object optimization of steel structures are discussed. This paper can be references for the optimization design of steel structures.

Comparison between the separating efficiency of an improved high-side weir overflow and a hydrodynamic Storm KingTM separator

1999 ◽  
Vol 39 (9) ◽  
pp. 177-184 ◽  
Author(s):  
G. Luyckx ◽  
G. Vaes ◽  
J. Berlamont
Keyword(s):  
Cost Estimation ◽  
Construction Cost ◽  
The Other ◽  
Scale Model ◽  
Surface Load ◽  
Storage Effect ◽  
Storm Events ◽  
Side Weir ◽  
High Side ◽  
Removal Efficiencies

Scale model tests were used to determine the efficiency relationships for a hydrodynamic separator (Storm KingTM) and a high-side weir overflow. With the help of these relationships optimal dimensions of an improved high-side weir overflow chamber could be found. The steady state efficiency for this improved overflow chamber seems to be comparable to that of a hydrodynamic separator, when both devices are subjected to the same surface load. On the other hand, during real storm events, the storage inside the overflow structure can play an important role. This role is investigated by calculating the removal efficiencies for both structures when 4 monitored storm events are used as input. When higher removal efficiencies are wanted, the storage effect gets more and more important and as a consequence the hydrodynamic separator can technically as well as economically compete with simpler structures like e.g. a high-side weir overflow. These findings are confirmed by a simple construction cost estimation.

Performance evaluation of normalization-based CBR models for improving construction cost estimation

2020 ◽  
Vol 119 ◽  
pp. 103329 ◽  
Author(s):  
Joseph Ahn ◽  
Sae-Hyun Ji ◽  
Sung Jin Ahn ◽  
Moonseo Park ◽  
Hyun-Soo Lee ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Cost Estimation ◽  
Construction Cost

scholarly journals ANALYSIS OF CONSTRUSTION BUDGET FORMULATION : CASE STUDY PUBLIC WORK AGENCY OF TASIKMALAYA REGENCY GOVERNMENT

2018 ◽  
pp. 1557
Author(s):  
Bayu Kharisma ◽  
Andar Mochamad Zamzam Noor
Keyword(s):  
Cost Estimation ◽  
Construction Projects ◽  
Construction Cost ◽  
Budget Process ◽  
Project Cost ◽  
Budget Cycle ◽  
Public Work

Budget formulation as the first dimensions of budget cycle, has an important role to maintain. A lot of issues will be grow up related to budget priority, objectives, outcomes, and regulation as long as formulation expenditure policy in allocating recources. The study purpose is to explain about the steps in making project cost estimation especially on the stages of budget formulation at the executive budget process. There is a formulation of construstion cost compenent which is regulated by Public Work Minister Rule No.45/PRT/M/2007. Case study of two construction projects budget in Public Work Agency of Tasikmalaya Regency generate some result that the the early estimation cost of proposal in RKA/DIPA is acceptable regarding to its construction cost, but others have to be revised, related to  planning cost, supervision cost, and management cost.

EXPERIMENTAL STUDY ON SLIP COEFFICIENT OF HIGH STRENGTH BOLTED JOINT WITH METAL SPRAYED CONTACT SURFACE

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Yusuke Nakanishi ◽  
Kunitaro Hashimoto ◽  
Yasuo Suzuki ◽  
Kunitomo Sugiura
Keyword(s):  
Steel Structures ◽  
High Strength ◽  
Treatment Method ◽  
Construction Cost ◽  
Bolted Joints ◽  
Maintenance Cost ◽  
Bolted Joint ◽  
Slip Coefficient ◽  
Surface Conditions ◽  
Contact Surfaces

There are several ways to reduce the number of bolts of frictional bolted joints from the viewpoint of the construction cost and the maintenance cost for steel structures. For example, there are the ways which are strengthening the material of bolts, or increasing the slip coefficient. This study is focused on the slip coefficient with metal thermal sprayed contact surfaces. The objective of this study is to investigate the effects of different surface conditions on the slip coefficient. Therefore, slip tests were conducted in consideration of 9 patterns of surface treatment method (3 kinds of thickness, 3 kinds of material of sprayed metal).

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