Sliding resistance of the main cable is biggest concern when designing multispan suspension bridges. This paper presents a study on layout form and sliding-resistance stability in double-cable bridge. It proposes "top to bottom cable" layout, based which analytical formulas for calculating coefficient have been derived. The were verified by finite-element models (FEMs), results showed good agreement. effects major design parameters sliding studied. Analysis shows that top can effectively...

Hollow core concrete bridges have been widely constructed in China during the last two decades. The most simple span bridges, with standard lengths of 13 m, 16 m and 20 are hollow bridges. For this type bridge, slabs precast simply lifted into place. After prefabricated put place, embedded rebars extending from bound together is poured space between slabs, forming a lateral hinge joints slabs. A lot built early 1990s small very few to form strong connections With an increase overweight...

AbstractMany existing steel bridges in China were strengthened or retrofitted recently to improve the load-carrying capacity extend service life span. The effectiveness of these measures is investigated by evaluation fatigue a highway continuous truss bridge order ensure continued safe use and gain knowledge on repair replacement. Three-dimensional finite element models structure before after strengthening are established through calibration with situ measured stresses displacement. traffic...

Purpose This paper aims to identify the relationship between users' perception image, clothing design features and preference propose a scheme based on users image preference. Design/methodology/approach In this paper, men's suit is composed into multiple under elements. Using orthogonal experiment method, 16 schemes of representative are designed. Through evaluation experiment, images degree samples obtained. By partial least squares (PLS) analysis models built. Findings The...

The effect of damaged transverse connection diaphragm beams on the bearing capacity prefabricated concrete T-beam bridges was studied through model experiment and finite element analysis. On basis standard drawing 16 m bridge, a bridge scale 1 to 4 designed by using welding steel plate. impacts different condition load distribution were discussed. result shows that (1) flange has little impact when are connected reliably; (2) damage connections much influence adjacent girders but it apart...

Allen Hall, located at Soochow University, is one of the most representative campus buildings modern Chinese Christian universities. The masonry-timber structure system and construction technology fully reflect dual mixed type imported local. It an important architectural heritage universities in China. also example for studying evolution development structures. This study investigates structural system, technical characteristics, value Hall focusing on conservation adaptive reuse. Through a...

Based on the theory of ANN (Artificial Neural Network),The paper raised method construction control, and introduced common forecasting method. According to characteristic itself complexity factors which influence elevation, analysed aspects ANN. On promise bridge precision, section measure、elasticity model、temperature、delay cantilever for neural network’s input vector in process. With help Graphical User Interface, built ANN, made forecast function into reality. Introduce Artificial...

This paper approaches the rules of curvature mode and difference about a simply supported beam. On basis theory mode, through numerical simulation analysis beam on four conditions, result with were obtained. The results show that for damaged information simulation, index calculated by method at unit length unevenly is strong noise, which can even submerge damage information, different beam, from curve stronger effected weaker than those curve, decrease increasing order.

The forms of U‐shaped UHPFRC beams have not been investigated for the highway footbridge. Compared with traditional section forms, can reduce material consumption under condition providing same bearing capacity. Furthermore, prestressed are rarely reported in existing research. This paper explores flexural behavior ultrahigh‐performance fiber‐reinforced concrete (UHPFRC) beam bridge having unique design and properties reinforcement combined UHPFRC. Based on shape U beam, performance test...

As for the study on strain performance of tensile reinforcement under fatigue loads with amplitude certain values, two groups reinforced concrete slab bridge specimen were made. The test was carried out one group specimen, and corresponding static load another experimental bottom mid span slabs. results shown that, at a amplitude, tend to be stable increase number cycle, value showed linear relationship applied. When increased, change rule applied approximately linear, but increased more...

As for the study on development regularity of slab concrete cracks under fatigue loads with amplitude certain values, two groups reinforced bridge specimen were made. The test was carried out one group specimen, and corresponding static load another experimental at bottom out. results shown that, a amplitude, trend caused by loading slabs changed more loads. reasons changes analyzed. has vital significance further research bridges action

In order to study the impact of reforcement stress and concrete cracking bridge deck caused by difference diameter spacing, sub-model analysis was adopted, bottom horizontal affected different spacing were analysised. The results indicated that When greater than 10cm, under most unfavorable position load would crack; in vehicle position, reinforcement specing not more if bar a certain value, crack. Meanwhile, with increase diameter, steel decreased, possibility reduced. Combined results,...

In order to study the transverse strain of hinge joints under role vertical shear stress, experimental researches plates with different structure were made, and correlations numerical analysis also carried out. Shown from results test analysis, deep shallow at mid span all small. The stress cracking concrete in can be simulated by ANSYS models, but after models cracked, errors nonlinear analog value was greater. Therefore, not a single factor which caused damage joints; for model, unit...

Mechanical products are becoming increasingly precise after industrial revolutions. Design is important for the manufacture of those products. Good mechanical design can improve quality product, and efficiency manufacture. To find problems in then design, it needed simulation process was completed. Computer technologies process, such as software technology virtual technology, were deeply studied this work which combined practice with concept characteristics machine design.

The applicability and durability proportions of the main structures in concrete bridge were determined based on AHP, influence degree different influencing factors applicable durable also analysised, which laid foundations configurations study bridge.