Rehabilitation and Retrofitting of Structures Notes (RRS)
... Monomer systems can be used for effective repair of some cracks. A monomer system is a liquid consisting of monomers which will polymerize into a solid. The most common monomer used for this purpose is methyl methacrylate. The procedure consists of drying the fracture, temporarily encasing it in a w ...
... Monomer systems can be used for effective repair of some cracks. A monomer system is a liquid consisting of monomers which will polymerize into a solid. The most common monomer used for this purpose is methyl methacrylate. The procedure consists of drying the fracture, temporarily encasing it in a w ...
A new ductile moment-resisting connection for precast concrete
... showed that precast connections can sustain large inelastic deformations under cyclic loads, if they are designed properly. Stone et al. [11] developed a new hybrid moment-resisting beamcolumn connection for precast frames in regions with high seismicity. Their proposed system utilised mild steel b ...
... showed that precast connections can sustain large inelastic deformations under cyclic loads, if they are designed properly. Stone et al. [11] developed a new hybrid moment-resisting beamcolumn connection for precast frames in regions with high seismicity. Their proposed system utilised mild steel b ...
PRINCIPLES OF BUILDING CONSTRUCTION: NONCOMBUSTIBLE
... when it is on fire and decisions must be made in moments. The IC is faced with companies arriving and seeking tactical assignments. Heavy smoke conditions may obscure visibility from the Command Post (CP); a Quick Access Prefire Plan (QAP) may not exist for the structure. Other professions typically ...
... when it is on fire and decisions must be made in moments. The IC is faced with companies arriving and seeking tactical assignments. Heavy smoke conditions may obscure visibility from the Command Post (CP); a Quick Access Prefire Plan (QAP) may not exist for the structure. Other professions typically ...
Bamboo as reinforcement in structural concrete elements
... performance, are below the line. It can be seen that only timber from palm-trees and balsas are in the same range as bamboo whereas steel, concrete and aluminium are located far below the line. The closed area for each material shows the variation of the available data for the same. In South America ...
... performance, are below the line. It can be seen that only timber from palm-trees and balsas are in the same range as bamboo whereas steel, concrete and aluminium are located far below the line. The closed area for each material shows the variation of the available data for the same. In South America ...
Comparison of Structural Design Actions Part 4: Earthquake Actions
... AS1170.4:2007 code and has examined the implications to building frame structural systems. The principles of seismic design and the advances in the field that lead to development of the new AS1170.4:2007 code [7] have been presented. A detailed comparison of the differences between the Layout, Notat ...
... AS1170.4:2007 code and has examined the implications to building frame structural systems. The principles of seismic design and the advances in the field that lead to development of the new AS1170.4:2007 code [7] have been presented. A detailed comparison of the differences between the Layout, Notat ...
Energy-based damage index for steel structures
... larger, and having epicenters located at distances of 300 km or more from Mexico City. The frames, which were assumed to be used for office occupancy, have three bays and a number of levels that range from four to eighteen. The bay and inter-story dimensions are those indicated in Fig. 5. The frames ...
... larger, and having epicenters located at distances of 300 km or more from Mexico City. The frames, which were assumed to be used for office occupancy, have three bays and a number of levels that range from four to eighteen. The bay and inter-story dimensions are those indicated in Fig. 5. The frames ...
Earthquake Analysis of Tall Building with Tuned Mass Damper.
... Critical components of the TMD are the dampers themselves. Several types of dampers have been considered for use in TMD’s. However, many of these types of dampers are not compatible with TMD’s for tall buildings because they are unable to meet all the stringent requirements necessary for use in thes ...
... Critical components of the TMD are the dampers themselves. Several types of dampers have been considered for use in TMD’s. However, many of these types of dampers are not compatible with TMD’s for tall buildings because they are unable to meet all the stringent requirements necessary for use in thes ...
B1015
... including non-adoption of seismic engineering practices and lack of seismic resistant features. The seismic performance of a building can be improved by using energy absorbing devices, which may be active or passive in nature. Active control techniques have not found much appreciation due to its hig ...
... including non-adoption of seismic engineering practices and lack of seismic resistant features. The seismic performance of a building can be improved by using energy absorbing devices, which may be active or passive in nature. Active control techniques have not found much appreciation due to its hig ...
Acoustic Floating Floor Systems
... ❫ Are used in a wide range of buildings to protect sensitive areas from noise sources or to contain noise sources within their areas ❫ Offer flexibility in delivery as well as being easy, fast and economical to install ❫ Provide a high degree of impact, shock and vibration control through a combi ...
... ❫ Are used in a wide range of buildings to protect sensitive areas from noise sources or to contain noise sources within their areas ❫ Offer flexibility in delivery as well as being easy, fast and economical to install ❫ Provide a high degree of impact, shock and vibration control through a combi ...
Detailed Seismic Assessment Report
... drawings provided by Transpower. A site inspection was carried out in May 2011 to identify the structures, check the currency of the drawings and identify potential site hazards. Other building data such as the classification of the buildings by importance level in accordance with NZS 1170.0:2002 St ...
... drawings provided by Transpower. A site inspection was carried out in May 2011 to identify the structures, check the currency of the drawings and identify potential site hazards. Other building data such as the classification of the buildings by importance level in accordance with NZS 1170.0:2002 St ...
half-cell potentials and the corrosion of steel in concrete
... assumes a low or passive value soon after being partly submerged in the tank and remains low until the chloride ion permeates the concrete and reaches the surface of the steel. It then causes the steel to become active. The initially high potential of the steel is caused by the film of water at the ...
... assumes a low or passive value soon after being partly submerged in the tank and remains low until the chloride ion permeates the concrete and reaches the surface of the steel. It then causes the steel to become active. The initially high potential of the steel is caused by the film of water at the ...
Effects of Scaling of Earthquake Excitations on the Dynamic
... Nonlinear time-history analyses were conducted by subjecting the building to each of the accelerograms of the ensembles. The computer program IDARC (Kunnath [3]) was used for the analyses. The response parameters that were considered in this study were the interstorey drifts and curvature ductilitie ...
... Nonlinear time-history analyses were conducted by subjecting the building to each of the accelerograms of the ensembles. The computer program IDARC (Kunnath [3]) was used for the analyses. The response parameters that were considered in this study were the interstorey drifts and curvature ductilitie ...
ADM-19
... (e) Effects on all affected buildings, slopes structures, lands and services and the provision of supports and protection, if necessary 2. Fundamental Issues of Site Formation Works (including Slope Works) and Excavation and Lateral Support (ELS) Works (a) The codes and standards proposed to be ...
... (e) Effects on all affected buildings, slopes structures, lands and services and the provision of supports and protection, if necessary 2. Fundamental Issues of Site Formation Works (including Slope Works) and Excavation and Lateral Support (ELS) Works (a) The codes and standards proposed to be ...
III. Design Data And Creating Model
... High wind speed 80 mph is used. This structure is composed of special moment resisting frame and it is designed out by using SAP 2000 software. The structural elements are designed base on UBC-97. For earthquake and wind forces, loading data were referenced from UBC-97. Dead loads and live loads are ...
... High wind speed 80 mph is used. This structure is composed of special moment resisting frame and it is designed out by using SAP 2000 software. The structural elements are designed base on UBC-97. For earthquake and wind forces, loading data were referenced from UBC-97. Dead loads and live loads are ...
Seismic Upgrading of Existing Structures
... that this assumption seems to be generally, but not always, valid for regular tall building structures. The profession seems to have reached a general consensus, however, that this assumption is also valid for other structures as a method of estimating inter-story drifts, providing that several limi ...
... that this assumption seems to be generally, but not always, valid for regular tall building structures. The profession seems to have reached a general consensus, however, that this assumption is also valid for other structures as a method of estimating inter-story drifts, providing that several limi ...
Civil and Environmental Engineering
... franchises, and super turnkey. Focuses on the analysis of design/bid/ build execution compared to design/build and construction management systems of delivery. Examines international projects, contracts, and partnering options—for example JVs and alliances—as vehicles to ensure the meeting of projec ...
... franchises, and super turnkey. Focuses on the analysis of design/bid/ build execution compared to design/build and construction management systems of delivery. Examines international projects, contracts, and partnering options—for example JVs and alliances—as vehicles to ensure the meeting of projec ...
Experimental Study on Partial Replacement of Concrete in
... as the medium for transferring stress from compression zone to the tension zone. Lot of researches were carried out for the investigation of alternate materials that can be used in concrete like fly ash, copper slag, rice husk etc. An alternate method of replacing concrete in the neutral axis of bea ...
... as the medium for transferring stress from compression zone to the tension zone. Lot of researches were carried out for the investigation of alternate materials that can be used in concrete like fly ash, copper slag, rice husk etc. An alternate method of replacing concrete in the neutral axis of bea ...
composite slab numerical strength test method under mk
... one of the most popular composite constructions in the globe [1-5]. The use of such system has numerous advantages. For instance, the profiled sheeting can serve as shuttering and shoulders’ wet concrete during construction stage, and will act as tension reinforcement within the composite slab syste ...
... one of the most popular composite constructions in the globe [1-5]. The use of such system has numerous advantages. For instance, the profiled sheeting can serve as shuttering and shoulders’ wet concrete during construction stage, and will act as tension reinforcement within the composite slab syste ...
... Code of Pakistan (BCP). Inclusion of shear walls adds stiffness to structure and aids in reducing lateral drift under seismic loads. Important aspects concerning design of shear walls are its placement in structure and the cross section (i.e. width to thickness ratio) keeping in view torsional stres ...
Pounding between adjacent buildings: comparison
... According Indian Standard, IS 1893:2002 the separation between two adjacent units or buildings shall be equal to the response reduction factor (R) times the sum of the calculated storey displacements.12 However, when the two buildings are at the same elevation levels, the factor R may be replaced by ...
... According Indian Standard, IS 1893:2002 the separation between two adjacent units or buildings shall be equal to the response reduction factor (R) times the sum of the calculated storey displacements.12 However, when the two buildings are at the same elevation levels, the factor R may be replaced by ...
Aesthetic Architecture Aesthetic Architecture
... which thus creates a deep bond with the surrounding community—high contact. Also, with its boomerang shape, this highrise building not only offers scenic beauty and attractive urban landscaping; it also meets the need to minimize such adverse effects on the surrounding area as electrical disruptions ...
... which thus creates a deep bond with the surrounding community—high contact. Also, with its boomerang shape, this highrise building not only offers scenic beauty and attractive urban landscaping; it also meets the need to minimize such adverse effects on the surrounding area as electrical disruptions ...
Document
... walls to the lightweight roof diaphragms. Observed damages and instrument records from the 1971 San Fernando, 1984 Morgan Hill, 1989 Loma Prieta and 1994 Northridge earthquakes have continually led to improved building code provisions for wall anchorage [4]. Based on observations following the Nort ...
... walls to the lightweight roof diaphragms. Observed damages and instrument records from the 1971 San Fernando, 1984 Morgan Hill, 1989 Loma Prieta and 1994 Northridge earthquakes have continually led to improved building code provisions for wall anchorage [4]. Based on observations following the Nort ...
FIN_Reprint CEU_0728 reThinkSeismic.indd
... base and other loads above the base as follows: ▶ In areas used for storage, a minimum of 25% of the floor live load. Exceptions: a) Where the inclusion of storage loads adds no more than 5% to the effective seismic weight at that level, it need not be included in the effective seismic weight, and ...
... base and other loads above the base as follows: ▶ In areas used for storage, a minimum of 25% of the floor live load. Exceptions: a) Where the inclusion of storage loads adds no more than 5% to the effective seismic weight at that level, it need not be included in the effective seismic weight, and ...
US 319:2003 UGANDA STANDARD Seismic code of
... frame means a system composed of interconnected members functioning as a complete selfcontained unit with or without the aid of horizontal diaphragms or floor bracing systems. ...
... frame means a system composed of interconnected members functioning as a complete selfcontained unit with or without the aid of horizontal diaphragms or floor bracing systems. ...
History of structural engineering
The history of structural engineering dates back to at least 2700 BC when the step pyramid for Pharaoh Djoser was built by Imhotep, the first engineer in history known by name. Pyramids were the most common major structures built by ancient civilizations because it is a structural form which is inherently stable and can be almost infinitely scaled (as opposed to most other structural forms, which cannot be linearly increased in size in proportion to increased loads).Another notable engineering feat from antiquity stiil in use today is the qanat water management system. Qanat technology developed in the time of the Medes, the predecessors of the Persian Empire (modern-day Iran which has the oldest and longest Qanat (older than 3000 years and longer than 71 km) that also spread to other cultures having had contact with the Persian.Throughout ancient and medieval history most architectural design and construction was carried out by artisans, such as stone masons and carpenters, rising to the role of master builder. No theory of structures existed and understanding of how structures stood up was extremely limited, and based almost entirely on empirical evidence of 'what had worked before'. Knowledge was retained by guilds and seldom supplanted by advances. Structures were repetitive, and increases in scale were incremental.No record exists of the first calculations of the strength of structural members or the behaviour of structural material, but the profession of structural engineer only really took shape with the industrial revolution and the re-invention of concrete (see History of concrete). The physical sciences underlying structural engineering began to be understood in the Renaissance and have been developing ever since.