Structural Behaviors of Chinese Historical Timber-Frame Buildings

2012 ◽  
Vol 517 ◽  
pp. 705-709 ◽  
Author(s):  
Xi Cheng Zhang ◽  
Hong Tie Zhao ◽  
Yan Sui
Keyword(s):  
Indoor Environment ◽  
Passive Control ◽  
Structural Integrity ◽  
Low Carbon ◽  
Structural System ◽  
Timber Frame ◽  
Sliding Isolation ◽  
Frame Buildings ◽  
Structural Behaviors ◽  
System Layout

As a kind of low-carbon, sustainable and environmental-friendly building material, wood has been widely used in ancient timber-frame buildings in China. Chinese ancient timber-structure buildings can not only provide a comfortable indoor environment, but also has an excellent structural behavior. Based on the study of horizontal and vertical layout of structural system, special constructional measures such as Cejiao and Shengqi, the structural behaviors of Chinese ancient timber-frame buildings were studied. Those conclusions were achieved: structural system layout in both horizontal and vertical comply with the existing anti-seismic conceptual design thoughts. When subjected to earthquake, the seismic actions are reduced by means of base sliding isolation, energy dissipation and shock absorption of mortise-tenon joints and tou-kung sets, which make Chinese ancient timber building a multiple aseismic system. Cejiao and Shengqi are equivalent to passive control in modern buildings, which improve the structural integrity, stability and aseismic capacity greatly. The post-and-lintel roof truss is a good way of saving material.

scholarly journals 3D VISUALIZATION OF A TIMBER FRAME HISTORIC BUILDING: PARTITE USAGE AND ITS IMPACT ON THE STRUCTURAL SYSTEM

2017 ◽  
Vol XLII-2/W5 ◽  
pp. 325-328
Author(s):  
S. Günay
Keyword(s):  
3D Visualization ◽  
Structural Systems ◽  
Master's Program ◽  
Structural System ◽  
Black Sea Region ◽  
Timber Frame ◽  
Frame Building ◽  
Frame Buildings ◽  
The Mansion

Throughout their lifetime, historic buildings might be altered for different kind of usage for different purposes. If this new function or new usage requires utilization of the building in separate units, this separation might affect the historic building’s functionality and structure and as a result its overall condition.<br><br> Yorguc Pasa Mansion conservation project was prepared as a part of the Middle East Technical University (METU) Master’s Program in Documentation and Conservation of Historic Monuments and Sites for the historic Yorguc Pasa Mansion. The mansion is a 19th century Ottoman Period timber frame building in Amasya, a Black Sea Region city in Turkey that has traces from different civilizations such as Hittites, Greeks, Romans and Ottomans.<br><br> This paper aims to discuss the affects of the partite usage on structural conditions of timber frame buildings with the case study of Amasya Yorguc Pasa Mansion through the 3D visualized structural systems.

Practitioner-friendly design method to improve the seismic performance of RC frame buildings

2021 ◽  
pp. 875529302098801
Author(s):  
Orlando Arroyo ◽  
Abbie Liel ◽  
Sergio Gutiérrez
Keyword(s):  
Seismic Performance ◽  
Design Method ◽  
Three Dimensional ◽  
Rc Frame ◽  
Structural System ◽  
Standard Code ◽  
Frame Buildings ◽  
Rc Frame Buildings ◽  
Mathematical Justification ◽  
Story Building

Reinforced concrete (RC) frame buildings are a widely used structural system around the world. These buildings are customarily designed through standard code-based procedures, which are well-suited to the workflow of design offices. However, these procedures typically do not aim for or achieve seismic performance higher than code minimum objectives. This article proposes a practical design method that improves the seismic performance of bare RC frame buildings, using only information available from elastic structural analysis conducted in standard code-based design. Four buildings were designed using the proposed method and the prescriptive approach of design codes, and their seismic performance is evaluated using three-dimensional nonlinear (fiber) models. The findings show that the seismic performance is improved with the proposed method, with reductions in the collapse fragility, higher deformation capacity, and greater overstrength. Furthermore, an economic analysis for a six-story building shows that these improvements come with only a 2% increase in the material bill, suggesting that the proposed method is compatible with current project budgets as well as design workflow. The authors also provide mathematical justification of the method.

scholarly journals Timber frame houses resistant to dynamic loads - seismic analysis

2018 ◽  
Vol 219 ◽  
pp. 01001
Author(s):  
Marcin Szczepański ◽  
Wojciech Migda
Keyword(s):  
Polyurethane Foam ◽  
Considerable Increase ◽  
Seismic Analysis ◽  
Numerical Models ◽  
Mineral Wool ◽  
Seismic Excitations ◽  
Timber Frame ◽  
Frame Building ◽  
Frame Buildings ◽  
Node Displacement

The aim of the article is to present results of seismic analysis results of two real-sized timber frame buildings subjected to seismic excitations. The first model was insulated with mineral wool, the second one with polyurethane foam. Technology and specifications involved in both models construction is based on the previously conducted experimental research on timber frame houses, including wall panels tests, wall numerical models and study on material properties and precisely reflect results of the those research. During the seismic analysis reference node located in buildings were selected. In selected node displacement values were measured and compared between two analyzed models. The results of the numerical analysis presented in the article indicate that the application of polyurethane foam for a skeleton filling of the timber-frame building leads to the increase in stiffness as well as damping of the whole structure, which results in a considerable increase in the seismic resistance of the structure.

Issues in Welding of HSLA Steels

2011 ◽  
Vol 365 ◽  
pp. 44-49 ◽  
Author(s):  
Sandeep Jindal ◽  
Rahul Chhibber ◽  
N.P. Mehta
Keyword(s):  
Structural Integrity ◽  
Hsla Steel ◽  
Weight Ratio ◽  
Welding Process ◽  
Pressure Vessels ◽  
Carbon Steels ◽  
Low Carbon ◽  
Line Pipe ◽  
Hsla Steels ◽  
Selection Of

The application of High Strength Low Alloy (HSLA) steels has expanded to almost all fields viz. automobile industry, ship building, line pipe, pressure vessels, building construction, bridges, storage tanks. HSLA steels were developed primarily for the automotive industry to replace low-carbon steels in order to improve the strength-to-weight ratio and meet the need for higher-strength materials. Due to higher-strength and added excellent toughness and formability, demand for HSLA steel is increasing globally. With the increase of demand; other issues like the selection of filler grade and selection of suitable welding process for the joining of these steels have become very significant. This paper discusses the various issues regarding selection of suitable grade and selection of suitable welding process for joining of HSLA steels and issues concerning the structural integrity of HSLA steel welds.

Direct Displacement-Based Design of Glulam Timber Frame Buildings

2011 ◽  
Vol 15 (3) ◽  
pp. 491-510 ◽  
Author(s):  
Daniele Zonta ◽  
Cristiano Loss ◽  
Maurizio Piazza ◽  
Paolo Zanon
Keyword(s):  
Timber Frame ◽  
Direct Displacement Based Design ◽  
Frame Buildings ◽  
Displacement Based

Comparison Analysis of Typical Buildings in North-South Seismic Belt

2014 ◽  
Vol 501-504 ◽  
pp. 1639-1643
Author(s):  
Jie Ping Liu ◽  
Ning Guo ◽  
Ling Xin Zhang
Keyword(s):  
Seismic Damage ◽  
Frame Structure ◽  
Seismic Belt ◽  
Seismic Capacity ◽  
Reinforced Concrete Frame ◽  
Timber Frame ◽  
Concrete Frame ◽  
The North ◽  
Frame Buildings ◽  
Reinforced Concrete Frame Structure

In North-south earthquake belt, half of more than Ms 8.0 great earthquakes were centralized since the history records were existed in our country. In order to study the typical buildings in this seismic belt, the seismic damages of the typical buildings occurred during 22 earthquakes in North-south earthquake belt, whose earthquake magnitude were more than Ms 6.0, were organized and analyzed. The seismic damage and its matrix of kinds of buildings belonging to the North-south earthquake belt in different intensities were obtained. The statistic results were obtained by comparison and analysis. According to the results of analysis, the seismic capacity of kinds of typical buildings in this region was provided: reinforced concrete frame structure showed fine seismic capability in all previous earthquake whose seismic damage was the slightest in the real statistics results; secondly were those of masonry and mortised timber frame buildings; the seismic damage of buildings, which was combined with timber frame and soil, stone, brick walls was the most serious.

Investigation on Structural Behaviors of Reactor Pressure Vessel With the Effects of Critical Heat Flux and Internal Pressure

2016 ◽  
Vol 139 (2) ◽  
Author(s):  
Jianfeng Mao ◽  
Jianwei Zhu ◽  
Shiyi Bao ◽  
Lijia Luo ◽  
Zengliang Gao
Keyword(s):  
Heat Flux ◽  
Internal Pressure ◽  
Critical Heat Flux ◽  
Pressure Vessel ◽  
Structural Integrity ◽  
Reactor Pressure Vessel ◽  
Wide Range ◽  
Depth Analysis ◽  
Structural Behaviors ◽  
Reactor Pressure

The so-called “in-vessel retention (IVR)” is a severe accident management strategy, which is widely adopted in most advanced nuclear power plants. The IVR mitigation is assumed to be able to arrest the degraded melting core and maintain the structural integrity of reactor pressure vessel (RPV) within a prescribed hour. Essentially, the most dangerous thermal–mechanical loads can be specified as the combination of critical heat flux (CHF) and internal pressure. The CHF is the coolability limits of RPV submerged in water (∼150 °C) and heated internally (∼1327 °C), it results in a sudden transition of boiling crisis from nucleate to film boiling. Accordingly, from a structural integrity perspective, the RPV failure mechanisms span a wide range of structural behaviors, such as melt-through, creep damage, plastic deformation as well as thermal expansion. Furthermore, the geometric discontinuity of RPV created by the local material melting on the inside aggravates the stress concentration. In addition, the internal pressure effect that usually neglected in the traditional concept of IVR is found to be having a significant impact on the total damage evolution, as indicated in the Fukushima accident that a certain pressure (up to 8.0 MPa) still existed inside the RPV. This paper investigates structural behaviors of RPV with the effects of CHF and internal pressure. In achieving this goal, a continuum damage mechanics (CDM) based on the “ductility exhaustion” is adopted for the in-depth analysis.

Study on the Advantages and Role of Soft Decoration Materials in Shaping the Indoor Environment Art Atmosphere

2014 ◽  
Vol 644-650 ◽  
pp. 4896-4899
Author(s):  
Wen Shi Mao
Keyword(s):  
Texture Analysis ◽  
Interior Design ◽  
Indoor Environment ◽  
Great Influence ◽  
Point Of View ◽  
Low Carbon ◽  
Indoor Space ◽  
New Material ◽  
Art Design

Modern decorative materials constantly updated and developed, and many of them are limited tube used for a time, and soon are replaced or eliminated. Soft adornment material can shape and express art atmosphere of indoor, having huge advantages and functions. In this paper, we research and analyze the soft adornment material from different point of view, and making catch-all category on the function of indoor soft adornment material that will be used in art design environmental. Soft adornment material has a great influence on the indoor space, such as people's sense of feel, smell, etc. Also from the angle of the color and design, as well as the texture analysis to analyze the utilization of soft decoration materials in interior design, and emphasized on low carbon green theme, highlighting the new idea of interior design, and also excusing the advantages of the new material.

scholarly journals Hygrothermal Monitoring of Replacement Infill Panels for Historic Timber-Frame Buildings: Initial Findings

2021 ◽  
Author(s):  
Chris J. Whitman ◽  
Oriel Prizeman ◽  
Pete Walker ◽  
Iain McCaig ◽  
Soki Rhee-Duverne
Keyword(s):  
Timber Frame ◽  
Infill Panels ◽  
Frame Buildings

scholarly journals Parametric study on the hygrothermal performance of timber frame walls with external airtightness membranes in a temperate maritime climate

2019 ◽  
Vol 282 ◽  
pp. 02080
Author(s):  
Valentina Marincioni ◽  
Federico Lorenzetti ◽  
Hector Altamirano-Medina
Keyword(s):  
Parametric Study ◽  
Indoor Environment ◽  
Moisture Transfer ◽  
Wall Structure ◽  
Two Dimensional ◽  
Mould Growth ◽  
Timber Frame ◽  
Maritime Climate ◽  
Hygrothermal Performance ◽  
Control Layer

In recent years, external airtightness membranes have become an option for timber frame wall systems, as they allow high levels of air- and wind-tightness with an easy installation and provide rainwater protection during construction. This opens up the option of removing the internal air and vapour control layer. However, the hygrothermal risks associated to this option could be higher than in conventional construction, because vapour transfer can occur from the indoor environment into the timber frame wall not just via diffusion but also advection. This can lead to moisture accumulation and mould growth risk within the wall structure. This paper presents a parametric study that aims at identifying the moisture risk when external airtightness membranes are installed on a timber frame wall in a temperate maritime climate. The parametric study considered the two-dimensional heat, air and moisture transfer within a timber frame wall. Parameters having higher influence on moisture risk were identified and should be considered when designing robust wall systems.

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