Internal forces
View article: MODERN THEORETICAL MODELS FOR ASSESSING THE COMBINED EFFECT OF INTERNAL PRESSURE AND SOIL LOAD ON UNDERGROUND RIGID PLASTIC PIPES
MODERN THEORETICAL MODELS FOR ASSESSING THE COMBINED EFFECT OF INTERNAL PRESSURE AND SOIL LOAD ON UNDERGROUND RIGID PLASTIC PIPES Open
This article analyzes the stress–strain behavior of underground plastic pipes under the simultaneous action of internal hydraulic pressure and external soil pressure. While the elastic approach based on the Lamé equations reflects the effe…
View article: MODERN THEORETICAL MODELS FOR ASSESSING THE COMBINED EFFECT OF INTERNAL PRESSURE AND SOIL LOAD ON UNDERGROUND RIGID PLASTIC PIPES
MODERN THEORETICAL MODELS FOR ASSESSING THE COMBINED EFFECT OF INTERNAL PRESSURE AND SOIL LOAD ON UNDERGROUND RIGID PLASTIC PIPES Open
This article analyzes the stress–strain behavior of underground plastic pipes under the simultaneous action of internal hydraulic pressure and external soil pressure. While the elastic approach based on the Lamé equations reflects the effe…
View article: Industrial and R&D Applications of Internal Spaces Theory (IST)
Industrial and R&D Applications of Internal Spaces Theory (IST) Open
This document presents the first structured set of industrial and R&D applications derived from Internal Spaces Theory (IST) — a geometric framework in which quantum behaviour, mass hierarchy, coherence limits and signal robustness can be …
View article: Industrial and R&D Applications of Internal Spaces Theory (IST)
Industrial and R&D Applications of Internal Spaces Theory (IST) Open
This document presents the first structured set of industrial and R&D applications derived from Internal Spaces Theory (IST) — a geometric framework in which quantum behaviour, mass hierarchy, coherence limits and signal robustness can be …
View article: MODELLING OF STRESS-STRAIN STATE OF SAMPLES WITH OCTAGONAL STRUCTURE MANUFACTURED BY 3D-PRINTING TECHNOLOGY.
MODELLING OF STRESS-STRAIN STATE OF SAMPLES WITH OCTAGONAL STRUCTURE MANUFACTURED BY 3D-PRINTING TECHNOLOGY. Open
BACKGROUND: In today's environment, agricultural equipment faces the challenges of increased wear and tear and limited availability of traditional materials. To replace standard components, innovative solutions are required to improve the …
View article: Using steel mesh as internal reinforcement in the concrete supports subjected to partially compressive load
Using steel mesh as internal reinforcement in the concrete supports subjected to partially compressive load Open
View article: A Structural Analysis Framework for Hinged Precast Frame Beams Based on the Winkler Foundation Model
A Structural Analysis Framework for Hinged Precast Frame Beams Based on the Winkler Foundation Model Open
Conventional structural analysis of hinged precast frame beams (HPFB) often relies on a simplified load distribution method that may not fully account for deformation compatibility, potentially affecting result accuracy. To address this li…
View article: Seismic Performance of Mass Irregular RC Framed Structures
Seismic Performance of Mass Irregular RC Framed Structures Open
Stiffness irregularities are among the most critical factors affecting the seismic performance of reinforced concrete (RC) framed buildings. Abrupt reductions in stiffness—caused by weak storeys or sudden loss of lateral resistance—distort…
View article: Functional Strut-and-Tie Model of Filament Pipes in Extradosed Cable-Stayed Bridges Under Mechanical Loading
Functional Strut-and-Tie Model of Filament Pipes in Extradosed Cable-Stayed Bridges Under Mechanical Loading Open
Designing reinforcements for concrete towers in extra-dosed cable-stayed bridges is challenging due to the passage of filament pipes, particularly in the D-region, where strain distribution is nonlinear under mechanical loading. The strut-…
View article: As práticas de turismo e lazer e a patrimonialização da Cachoeira do Acaba-Vida, em Barreiras (Bahia)
As práticas de turismo e lazer e a patrimonialização da Cachoeira do Acaba-Vida, em Barreiras (Bahia) Open
A Cachoeira do Acaba-Vida está localizada em Barreiras (Bahia), em trecho do médio curso do Rio de Janeiro, afluente do Rio Branco, pertencente à Bacia do Rio Grande, este que, por sua vez, é o maior tributário da margem esquerda do Rio Sã…
View article: Kinematic Upper-Bound Analysis of Safety Performance for Precast 3D Composite Concrete Structure with Extended Mohr–Coulomb Criterion
Kinematic Upper-Bound Analysis of Safety Performance for Precast 3D Composite Concrete Structure with Extended Mohr–Coulomb Criterion Open
This study develops a systematic kinematic upper-bound framework to evaluate the ultimate bearing capacity and failure mechanisms of prefabricated cast-in-place slab–wall joints in overlapped metro stations. Recognizing the complex shear–c…
View article: 3D Model of the Upper Limb Link of a Variable-Length Exoskeleton with Controlled Rigidity and a Movable Pole for Construction Workers
3D Model of the Upper Limb Link of a Variable-Length Exoskeleton with Controlled Rigidity and a Movable Pole for Construction Workers Open
Unloading the upper limbs of their bodies is a serious problem in preventing occupational diseases and increasing the productivity of construction workers. An effective approach to this task is the use of exoskeletons for the upper limbs, …
View article: Analysis of Factors Influencing Structural Deformation in Shield Tunnel Structure
Analysis of Factors Influencing Structural Deformation in Shield Tunnel Structure Open
Shield tunnels are prone to structural diseases during long-term operation, which threaten their safe operation. It is necessary to study the deformation of shield tunnel and the force deformation of shield tunnel structure by different di…
View article: Prefabricated Composite Slabs Prefabricated Floor Slab Cast-in-Place Formwork Support Device
Prefabricated Composite Slabs Prefabricated Floor Slab Cast-in-Place Formwork Support Device Open
This paper introduces a new type of prefabricated composite slab cast-in-place strip formwork support device. Compared with the traditional lifting formwork system which is prone to lifting hole defects and uneven force distribution of the…
View article: Analysis of Multistoried Buildings with and Without Shear Walls Using Software
Analysis of Multistoried Buildings with and Without Shear Walls Using Software Open
In this paper, the influence of shear wall layout and the positioning of the openings on the overall structural behavior are determined through a comparative explanation of four structural designs of a G+20 multistorey building. The model-…
View article: Collision Analysis of a Jacket Platform Based on LS-DYNA
Collision Analysis of a Jacket Platform Based on LS-DYNA Open
As a safety and operational efficiency structural system, the jacket platform is widely employed in offshore structures. To analyze the overall structural response of a jacket platform under vessel collision, a 65 m high platform and a 500…
View article: Numerical Analysis of Deformation and Mechanical Characteristics of Circular Suspended Footing Diaphragm Wall with Deep Tunnel
Numerical Analysis of Deformation and Mechanical Characteristics of Circular Suspended Footing Diaphragm Wall with Deep Tunnel Open
Research on circular suspended footing diaphragm walls in "soil-rock combination" strata remains underdeveloped. Understanding deformation and internal force variations during foundation pit excavation is crucial for mitigating safety risk…
View article: INCREASING THE STRUCTURE RESILIENCE OF STEEL TRUSSES
INCREASING THE STRUCTURE RESILIENCE OF STEEL TRUSSES Open
This article examines approaches to improving the robustness and resilience of steel trusses under static and dynamic loads. Particular attention is paid to the advantages of statically indeterminate systems, redistribution of internal for…
View article: Flexural Behavior of Curved-Bolt Jointed Tunnel Segments under Combined Axial Force and Bending Moments
Flexural Behavior of Curved-Bolt Jointed Tunnel Segments under Combined Axial Force and Bending Moments Open
Precast segmental tunnel linings are structurally vulnerable due to the presence of mechanical joints between segments. However, the lack of detailed design guidelines for these joints has led to limited recognition of the need to evaluate…
View article: Numerical Investigation of Burst Capacity in Pressure Armour Layer of Flexible Risers
Numerical Investigation of Burst Capacity in Pressure Armour Layer of Flexible Risers Open
Unbonded flexible risers are key components in offshore oil and gas production, enabling safe hydrocarbon transport under extreme deepwater conditions. The pressure armour (PA) layer is the primary metallic layer, which is designed to resi…
View article: Tool Z — The Continuity Force
Tool Z — The Continuity Force Open
Tool Z — The Continuity Force explains why some systems stay on course under pressure while others fracture, freeze, or drift. Positioned within The System Interpretation Series, Tool Z introduces a structural view of organizational will, …
View article: Tool Z — The Continuity Force
Tool Z — The Continuity Force Open
Tool Z — The Continuity Force explains why some systems stay on course under pressure while others fracture, freeze, or drift. Positioned within The System Interpretation Series, Tool Z introduces a structural view of organizational will, …
View article: Study and Application of a Pilot-Tunnel-First Method for Rapid Excavation of Large-Span Soft Rock Tunnels
Study and Application of a Pilot-Tunnel-First Method for Rapid Excavation of Large-Span Soft Rock Tunnels Open
The rapid development of transportation infrastructure in challenging geological regions necessitates innovative tunneling methods that balance efficiency, safety, and cost. This study addresses the critical construction bottleneck of larg…
View article: Vision Freqformer for Vibration Monitoring using existing surveillance cameras
Vision Freqformer for Vibration Monitoring using existing surveillance cameras Open
Social infrastructure, such as road bridges and tunnels, is used in the long term; therefore, their structural integrity must be maintained during this period. Currently, the soundness of social infrastructure is confirmed through visual a…
View article: A Unified Engineering Framework for Large-Scale Megalithic Construction
A Unified Engineering Framework for Large-Scale Megalithic Construction Open
This paper presents a unified engineering model explaining how ancient builders could have feasibly quarried, transported, lifted, and placed multi-ton megalithic stones using principles consistent with modern structural, thermal, and mech…
View article: Research on the Slip Surface and Active Earth Pressure of Cohesionless Soil Based on Discrete Element Method
Research on the Slip Surface and Active Earth Pressure of Cohesionless Soil Based on Discrete Element Method Open
This study employs Particle Flow Code (PFC) to investigate the effects of wall-soil friction angle (δ), internal friction angle (φ), and retaining wall inclination angle (ε) on the slip surface morphology and active earth pressure of cohes…
View article: Design and Implementation of a LiDAR-Based Inspection Device for the Internal Surveying of Subsea Pipelines
Design and Implementation of a LiDAR-Based Inspection Device for the Internal Surveying of Subsea Pipelines Open
Subsea pipelines are extensively utilized in transportation systems. Conducting regular and effective internal inspections of these pipelines to promptly identify internal defects and potential risks is of paramount importance to ensure sa…
View article: An Investigation into Near-Fault Ground Motion Characteristics and Their Influence on the Seismic Response of Typical Girder Bridges
An Investigation into Near-Fault Ground Motion Characteristics and Their Influence on the Seismic Response of Typical Girder Bridges Open
Near-fault ground motions significantly threaten bridges due to their distinct features, which are often inadequately considered in current seismic codes based mainly on far-field records. This study analyzes 941 near-fault records to eval…
View article: Effect of Vertical Irregularities in Stiffness Due to Seismic Activity
Effect of Vertical Irregularities in Stiffness Due to Seismic Activity Open
This research investigates the effect of vertical irregularities in stiffness on the seismic and blast performance of reinforced concrete (RC) multi-storey buildings with and without girders. Using ETABS software, analytical models were de…
View article: Perencanaan Jembatan Merangin Menggunakan Sistem Busur Rangka
Perencanaan Jembatan Merangin Menggunakan Sistem Busur Rangka Open
The Merangin Bridge is a national infrastructure located on Jl. Lintas Sumatra, Jambi Province, Merangin Regency which was built during the leadership of President Soeharto in the construction project of the Sumatra cross-Sumatra, more pre…