The use of concrete-filled hollow structural steel (HSS) columns has become widespread in the past few decades. However, these members are subject to static long-term behaviors under sustained loading, a common phenomenon concrete structures. Such problem not been addressed satisfactorily by design codes. present study is an attempt predict time-dependent behavior HSS means model that proposed ACI 209R-92. Tests on with square sections loading performed, addition proposing further tests...

Purpose Prefabricated building (PB) has high technical requirements and is susceptible to safety accidents, its construction occupational health (OHS) problems should not be ignored. To promote the better development of PB, this study aims measure their management level propose corresponding countermeasures. Design/methodology/approach By systematically combing relevant literature, extracts influencing factors that appear frequently in several studies categorizes them according six...

The methodology for studying a tyre blow-out process using both experiments and simulations is presented in this paper. To achieve this, generator an experimental device are developed. Moreover, the static state implemented. Then, finite element model corresponding to established. results show that developed can effectively replicate sudden inflation pressure loss without inflicting permanent damage on structure. comparison between shows simulate phenomenon simulation analysis method correct...

Friction dampers are widely used due to their simple structure, remarkable energy dissipation capacity, and frequency independence. However, existing friction prone relaxing the preload force during long‐term service, which can lead cold bonding or solidification. To overcome this critical shortcoming, a novel non‐preload variable damper (NVFD) was firstly proposed. The construction of proposed NVFD is provided in detail. Furthermore, restoring model through amplification factors inertial...

This study presents a solution for push-out failure the staged bond-slip constitutive relationship between structural steel and high strength concrete, taking into account concrete grade, anchoring length, stirrup ratio. The critical point coordinates different stages are determined by tests of 14 steel-reinforced (SRHSC) specimens. It is observed that with increase in grade anchorage ultimate load specimens increased significantly, but influence on residual bond was not significant. effect...

Based on a single box seven chamber steel continuous bridge, plate element model of the bridge is established using finite software for asphalt paving wide girder deck. The distribution instantaneous high-temperature temperature field during analyzed in detail. On this basis, shear lag effect load and its influencing factors are studied. results indicate that there significant changes layer process. area significantly affected by temperature. After reaches 103°C, decrease rate flange greater...

The article takes the distribution and development history of Qinzhou Riding House Cluster as an entry point, discusses architectural characteristics historical cultural significance Cluster, combines relevant theories community protection historic districts with actual problems faced by in analyzes main causes problems, preservation strategies for riding house area general, respectively, provides strategic opinions on urban public space terms general ideas overall strategies. It also...

This paper analyzed the mechanism of early autogenous shrinkage concrete, and studied influence high performance concrete-(HPC) admixed with different kinds materials bridge deck pavement. Four concrete mixes were used: fiber, fiber plus expansive agent, fly ash shrinkage-reducing agent. The result shows that four can inhibit HPC to a certain extent, inhibitory effect in order strong weak is: ash, itself. Furthermore, inhibition each mix was conclusion mixture be best choice considered...

The structural layout and the information beyond scope of design codes a double-tower-connected superhigh structure were introduced. On basis this information, stiffening measures given. Furthermore, two programs are chosen to study seismic behavior. And results show that main index can meet specification. Finally, finite element analysis mechanical behavior one key joint was carried out. It be found is elastic under some unfavorable load cases. Therefore, safe.

Based on the mechanical characteristics, deformation characteristics of top-and-seat angle semirigid connections, initial stiffness connections were studied. The derived theoretically with component method. Analytical formulas and fitted obtained, these analysed comparatively test data FEA results. results research indicated that expressed accurately by formula in paper, fit provided good condition for practical calculation method such connections.

In the bridge construction process, external environment changes and parameter errors might lead to deviation of finished state from theoretical value, therefore a static load test should be conducted at completion construction.Static is one key part new acceptance old detection, related results are important basis judge whether carrying capacity stiffness satisfy specified requirements.With continuous beam (CBB) as widely-used structural forms, it great significance study CBB.This paper, by...

The Publisher and Editor have retracted this article [1] in accordance with good ethical practices. After thorough investigations we believe that the peer review process was compromised. published online on 31-12-2014.

In order to study the fatigue behavior of RC beams strengthened with High Performance Ferrocement Laminates (HPFL) under overloading conditions, static and experiments were conducted on two control nine beams. The failure mode, life, deflection material strain conditions analyzed. result shows that (1) subjected overload starts steel rupture at bottom life is only between 327,000 668,000 while greater than million times in case not overloading; (2) compared specimen, obviously extended...

Performance levels in performance-based seismic design are affected by many factors. In this paper, based on the unclear division of performance levels, finite element models masonry buildings with windows different sizes and structural measures, according to damage constitutive equation strain space evolution [1], built, which analysed pushover analysis method. Stiffness change under earthquake action quantitatively described basic index holistic index. order show their joint buildings,...

Based on numerical and experimental methods, a systematic structural evaluation of steel natatorium in service was carried out detail this paper. Planning inspection tasks proposed firstly according to some national codes China order obtain the economic reliable results. The field visual inspections static computation were conducted turn under in-service environmental conditions. Further three-dimensional finite element model developed its factual geometry properties obtained from...