scholarly journals EXCHANGE REQUIREMENT-BASED DELIVERY METHOD OF STRUCTURAL DESIGN INFORMATION FOR COLLABORATIVE DESIGN USING INDUSTRY FOUNDATION CLASSES

2019 ◽  
Vol 25 (6) ◽  
pp. 559-573
Author(s):  
Huahui Lai ◽  
Cheng Zhou ◽  
Xueyuan Deng
Keyword(s):  
Structural Design ◽  
Collaborative Design ◽  
Structural Engineering ◽  
Structural Model ◽  
Structural Information ◽  
Information Delivery ◽  
Delivery Method ◽  
Process Map ◽  
Design Information ◽  
Industry Foundation Classes

In Architecture, engineering, and construction (AEC) collaboration, exchange requirements (ERs) vary in different projects with different platforms. In order to ensure the completeness and accuracy of data sharing and exchange for structural engineering in collaborative design, an ER-based delivery method was proposed to improve the delivery of structural design information. First, a process map of structural design was developed based on Information Delivery Manual (IDM). Within this process map, an ER Matrix of structural design was proposed to define information required by other disciplines at different stages. This matrix was composed of a set of required structural objects and their attributes, which were mapped to related Industry Foundation Classes (IFC) data. The mapping between the ER Matrix and IFC-based structural model data was implemented by an exchange model generation algorithm. Furthermore, a delivery tool was developed to define the ER Matrix in two ways, including user interface and XML-based language. A practical project was used to illustrate the utility of the proposed method. The results show that the proposed method using IFC is beneficial for structural information delivery.

scholarly journals Model Analysis and Optimization of BIM Technology in High-rise Shear Wall Residential Structure

2019 ◽  
Vol 267 ◽  
pp. 02001
Author(s):  
Liangli Xiao ◽  
Yan Liu ◽  
Zhuang Du ◽  
Zhao Yang ◽  
Kai Xu
Keyword(s):  
Structural Analysis ◽  
Collaborative Design ◽  
Structural Model ◽  
Structural Information ◽  
Shear Wall ◽  
Structure Design ◽  
Secondary Development ◽  
Optimized Design ◽  
Analysis Model ◽  
High Rise

This study combines specific high-rise shear wall residential projects with the Revit to demonstrate BIM application processes. The use of R-Star CAD may help to realize the link barrier of the building information model and the structural analysis software PKPM. Sequentially, the information supplement of the structural analysis model is completed by extracting the structural information with the Revit secondary development. By the collaborative design platform based on BIM technology, the paper examines the collision check of structural model, conducts collision analysis on other professional models and modifies the design scheme for conflict points. After the statistics of material usage, an optimized design is proposed. The findings of this paper could contribute to provide some reference for the specific application of BIM in structural design and realize the application of BIM technology in the process of building structure design.

scholarly journals Open BIM Standards: A Review of the Processes for Managing Existing Structures in the Pre- and Post-Earthquake Phases

CivilEng ◽  
2020 ◽  
Vol 1 (3) ◽  
pp. 291-309
Author(s):  
Christian Musella ◽  
Milena Serra ◽  
Antonio Salzano ◽  
Costantino Menna ◽  
Domenico Asprone
Keyword(s):  
Information Delivery ◽  
Seismic Events ◽  
Process Map ◽  
Industry Foundation Classes ◽  
Existing Structures ◽  
Before And After

The problem of managing existing structures before and after seismic events has led to the development of many different strategies across the globe. These aim to mitigate the catastrophic effects of earthquakes on the occupants of a building, as well as improve the management of the emergency that inevitably ensues. This paper explores the use of an openBIM approach to resolve the issues referred to above, which is possible because of two new standards: Industry Foundation Classes and Information Delivery Manuals. A review of the most popular strategies adopted in both the pre- and post-earthquake phases is conducted using a process map. This organizes the relevant steps and processes into tasks, and additionally identifies the points at which information is produced and exchanged and the party responsible for doing so. Also described is how BIM models can be utilized in essential pre- and post-earthquake activities, as well as current benefits and ongoing developments intended to improve the processes themselves.

scholarly journals Structure of the stress-related LHCSR1 complex determined by an integrated computational strategy

2021 ◽  
Author(s):  
Ingrid Guarnetti Prandi ◽  
Vladislav Sláma ◽  
Cristina Pecorilla ◽  
Lorenzo Cupellini ◽  
Benedetta Mennucci
Keyword(s):  
Structural Model ◽  
Light Harvesting ◽  
Structural Information ◽  
Protein Complexes ◽  
Complex Stress ◽  
Main Function ◽  
Light Harvesting Complexes ◽  
Light Harvesting Complex ◽  
Pigment Protein Complexes ◽  
Computational Strategy

Light-harvesting complexes (LHCs) are pigment-protein complexes whose main function is to capture sunlight and transfer the energy to reaction centers of photosystems. In response to varying light conditions, LH complexes also play photoregulation and photoprotection roles. In algae and mosses, a sub-family of LHCs, Light-Harvesting complex stress related (LHCSR), is responsible for photoprotective quenching. Despite their functional and evolutionary importance, no direct structural information on LHCSRs is available that can explain their unique properties. In this work we propose a structural model of LHCSR1 from the moss P. Patens, obtained through an integrated computational strategy that combines homology modeling, molecular dynamics, and multiscale quantum chemical calculations. The model is validated by reproducing the spectral properties of LHCSR1. Our model reveals the structural specificity of LHCSR1, as compared with the CP29 LH complex, and poses the basis for understanding photoprotective quenching in mosses.

Resistance Based Modeling of Collaborative Design

2004 ◽  
Author(s):  
Karen J. Ostergaard ◽  
Joshua D. Summers ◽  
Georges Fadel
Keyword(s):  
Design Process ◽  
Collaborative Design ◽  
Electrical Circuits ◽  
New Model ◽  
Design Information

The paper presents a new model for collaborative design. The model is analogous to electrical circuits with current (rate of design artifact synthesis and analysis), voltage (knowledge that drives the design process), and resistance (barriers to the exchange of design information). The resistances are identified from a collaborative design taxonomy. This model is illustrated through a simple example. Extensions and an assessment of the model are provided.

scholarly journals Special Issue “Digital Twin Technology in the AEC Industry”

2020 ◽  
Vol 2020 ◽  
pp. 1-18
Author(s):  
Jisong Zhang ◽  
Lihua Zhao ◽  
Guoqian Ren ◽  
Haijiang Li ◽  
Xiaofei Li
Keyword(s):  
Structural Design ◽  
Structural Engineering ◽  
Sustainable Design ◽  
Building Design ◽  
Current Situation ◽  
Special Issue ◽  
Sustainable Building ◽  
Digital Twin ◽  
The Past ◽  
The Future

Sustainable building design has become a hot topic over the past decades. Many standards, databases, and tools have been developed for achieving a sustainable building. Not until recently have the importance of structural engineering and its contribution to sustainable building design been full recognised. However, due to the highly fragmented and diversity of knowledge across building and infrastructure domains, there is a lack of approach that can address all the sustainable issues within the structural design. This paper reviews the sustainable design from the perspective of structural engineering: (1) reviewing the current situation; (2) identifying the gaps and difficulties; and (3) making recommendations for future improvements. The strategies and indicators, as well as BIM-enabled methodology, for sustainable structural design (SSD) are also discussed in a holistic way. The results of this investigation show that most of the methods are not doing well in terms of delivering a successful sustainable structural design. It is expected that the future BIM could probably provide such a platform to address these issues.

Discipline and Play in Structural Design

2020 ◽  
Vol 61 (1) ◽  
pp. 71-84
Author(s):  
Eric M. Hines
Keyword(s):  
Built Environment ◽  
Creative Process ◽  
Structural Design ◽  
Structural Engineering ◽  
Design Practice ◽  
Human Spirit ◽  
Practical Project ◽  
Technological World

The existence of structural art has implications far beyond the aesthetics of the built environment. Beauty is the purest expression of the human spirit, and its potential to coexist in the engineering imagination with practical project requirements is a powerful symbol for what is possible not only in structural engineering but in all engineering. Understanding the potential for structural art provides a key to strengthening the connection between our thoughts and our feelings, as they relate to our technological world and its improved coexistence with nature. The paper identifies and discusses sympathies between structural art and art in general and then uses examples from structural design practice to illustrate how the languages of drawing, simple calculations and project narrative are fundamental to the creative process in engineering.

La Primavera caldera (Mexico): Structure inferred from gravity and hydrogeological considerations

Geophysics ◽  
1991 ◽  
Vol 56 (7) ◽  
pp. 992-1002 ◽  
Author(s):  
M. A. Alatorre‐Zamora ◽  
J. O. Campos‐Enríquez
Keyword(s):  
Structural Model ◽  
Structural Information ◽  
Gravity Data ◽  
Middle Part ◽  
Geochemical Data ◽  
Gravity Modeling ◽  
The South ◽  
Geothermal Fluids ◽  
Production Zone ◽  
Structural High

La Primavera geothermal field (Mexico) is associated with a Pleistocene rhyolitic caldera. This gravity study was conducted to assist its development and explotation. Digital processing of the gravity data (upward and downward continuations, vertical derivatives) enabled delineation of the main features of the caldera’s subsurficial structure. A 3-D structural model was established, which could be supported by gravity modeling (2-D and 3-D forward modeling). Accordingly, the caldera is featured by an asymmetric subsurface structure: a major depression in its northern half, and a boomerang‐shaped structural high to the south. Lineaments reflecting the regional northwest‐southeast and northeast‐southwest structural fabric were observed. The basal volcanics units are affected by lineaments of the northwest‐southeast system, whereas the northeast‐southwest system affects only the shallower units. The structural high has a northwest‐southeast trend at the western and southwestern portion of the caldera. From its middle part eastward, it has a northeast‐southwest direction. The actual geothermal production zone is located above this structural high, on the portion where it changes orientation. Correlation with hydrogeological and geochemical data enabled interpreting the different geologic structures in the context of the hydrothermal system: at depth the northwest‐southeast structures seem to control lateral fluid migration, and connect areas of enhanced permeability (i.e., the central production zone and the hydrothermal manifestations located at the caldera’s western rim). Enhanced zones of fracturing favorable for entrapping hydrothermal fluids and structural accidents that may act as conduits (respectively as barriers) for fluids are delineated. In particular, a new target zone, where the production of geothermal fluids may extend, has been identified to the south of the production zone. The structural image elaborated here constitutes a geologic frame for the prevailing hydrogeological conceptual model. This structural information is also useful for the tasks of selecting sites for the reinjection of geothermal brines.

FEA Analysis of Subsea Mooring Suction Anchor Under Operation Condition

2015 ◽  
Author(s):  
Shuqin Wang ◽  
Jiaping Zhang ◽  
Jim Malachowski ◽  
Jubair Hossain ◽  
James Colling
Keyword(s):  
Structural Engineering ◽  
Structural Model ◽  
Limit State ◽  
Strength Analysis ◽  
Soil Parameters ◽  
Soil Reaction ◽  
Soil Pressure ◽  
Operation Condition ◽  
Limit States ◽  
Conservative Result

The analysis of a mooring suction anchor involves both geotechnical and structural engineering. The design starts with the geotechnical analysis of a mooring suction anchor where the design loads are used to determine the size of the mooring suction anchor. Typically, a conservative estimate would be made for the soil strength and analysis would involve several layers of soil with different properties. The mooring suction anchor is then designed using the relevant soil parameters for various limit states under the combined vertical, lateral, torsional, and moment loading. Soil pressures or reactions acting on a rigid steel mooring suction anchor for each limit state are calculated. The calculation results are then provided to structural engineers to perform strength analysis to verify the integrity of the anchor. Therefore, it is important to understand how the soil reactions interact with the suction anchor in the structural model. The current analysis used the soil reaction data developed for an in-place loading condition for a mooring suction anchor. The structure of the mooring suction anchor was modelled using a 3D finite element method. Two studies were performed. The first study performed the regular mapping of the soil pressure to the suction anchor. The second study assumed that all the loads would be applied on the mooring padeye and the bottom of the suction would be fixed. It was presumed that the second study would yield a conservative result. However, the analysis results showed that the second study did not provide a conservative result. Therefore, it is recommended that the care should be taken when making such assumptions in future studies.

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