Research on Fire Resistance of Stainless Steel Car Body Floor Structure in Urban Rail Vehicles

2021 ◽  
Author(s):  
Na Jia ◽  
Mingjun Cai ◽  
Xiaofang Liu ◽  
Haifeng Zhang
Keyword(s):  
Stainless Steel ◽  
Fire Resistance ◽  
Car Body ◽  
Rail Vehicles ◽  
Urban Rail ◽  
Floor Structure

Research on Fire Resistance of Stainless Steel Car Body Floor Structure in Urban Rail Vehicles

2020 ◽  
Author(s):  
Na Jia ◽  
Haifeng Zhang ◽  
Xiaofang Liu ◽  
Mingjun Cai
Keyword(s):  
Stainless Steel ◽  
Fire Resistance ◽  
Modular Design ◽  
Test Results ◽  
Fire Performance ◽  
Insulation Materials ◽  
Fire Engineering ◽  
Rail Vehicles ◽  
Urban Rail ◽  
Transit Market

Abstract At present, the fire performance of vehicles is highly concerned in domestic and international rail transit market projects [1], where the fire performance of the vehicle’s underframe is a crucial factor that restricts the fire safety of the entire rail vehicle. How to improve the fire resistance of vehicle underframe structure has become the focus and difficulty of vehicle fire engineering [2]. This article introduces main international fireproof standards applicable for urban rail vehicles. Then, based on the typical underframe structures of urban rail vehicles stainless steel body, three refractory structure models on different underframe structures are established by using different fireproof insulation materials as underframe fillers. Moreover, fire resistance tests are conducted on samples of three underframe models to verify the effectiveness of those fire performance. As per the fire test results, the crucial indexes such as heat insulation, fire resistance, temperature rise curve, fire resistance time and material cost of different filler insulation materials are compared and summarized. Finally, the standardized and modular design specification is suggested on refractory underframe structures in urban rail vehicles.

Fire-Resistance Design Method for Stainless Steel Tubular X-Joints

2022 ◽  
Vol 148 (1) ◽  
Author(s):  
Runmin Ding ◽  
Shenggang Fan ◽  
Lianlian Jia ◽  
Hang Zhou
Keyword(s):  
Stainless Steel ◽  
Fire Resistance ◽  
Design Method

A Study on the Characteristics of Bogie Frame Materials

2013 ◽  
Vol 420 ◽  
pp. 144-148 ◽  
Author(s):  
Sung Cheol Yoon ◽  
Yeon Su Kim ◽  
Joon Hyung Ryu ◽  
Sung Hyuk Park ◽  
Geun Soo Park
Keyword(s):  
Structural Analysis ◽  
Performance Test ◽  
Structural Safety ◽  
Combined Stress ◽  
Bogie Frame ◽  
Test Standards ◽  
Rail Vehicles ◽  
Urban Rail ◽  
Load Tests ◽  
And Performance

This paper describes the structural analysis, load tests and combined stress of the bogie frame. It seeks to identify the structural safety of the bogie frame when the bogie is assembled on the train and a train service is implemented. The bogie consists of the bogie frame, suspension, wheels, brakes and transmission, etc. The bogie frame can be considered as the most important part of the bogie. The analysis and tests were evaluated using JIS E 4207 standards and performance test standards for urban rail vehicles.

Fire-resistance of RHS stainless steel beams with three faces exposed to fire

2019 ◽  
Vol 152 ◽  
pp. 284-295 ◽  
Author(s):  
Shenggang Fan ◽  
Li Du ◽  
Shuai Li ◽  
Liyuan Zhang ◽  
Ke Shi
Keyword(s):  
Stainless Steel ◽  
Fire Resistance ◽  
Steel Beams

scholarly journals Research on the Efficiency of Composite Beam Application in Multi-Storey Buildings

2020 ◽  
Vol 12 (20) ◽  
pp. 8328 ◽  
Author(s):  
Tomas Kinderis ◽  
Mindaugas Daukšys ◽  
Jūratė Mockienė
Keyword(s):  
Reinforced Concrete ◽  
Fire Resistance ◽  
Composite Beam ◽  
Concrete Beams ◽  
Residential Building ◽  
Reinforced Concrete Beam ◽  
Composite Beams ◽  
Reinforced Concrete Beams ◽  
Assessment Criteria ◽  
Floor Structure

Over the past decade, several types of composite slim floor constructions have been used in multi-storey buildings in Lithuania. In order to study the efficiency of composite beam application in steel-framed multi-storey buildings, Thorbeam (A1), Deltabeam (A2), slim floor beam (A3) and asymmetric slim floor beam (A4) were chosen and evaluated according to nine assessment criteria (beam cost (K1), initial preparation on site (K2), installation time (K3), complexity of installation technology (K4), labour costs (K5), fire resistance (K6), load bearing capacity (K7), beam versatility (K8), and availability of beams (K9)). First, the significance of the rating criteria was selected and the order of the ranking criteria was obtained (K1˃K7˃K3˃K6˃K4˃K5˃K2˃K8˃K9) by means of a survey questionnaire. Second, the beams were ranked according to the points given by the questionnaire respondents as follows: 160 points were given to A2, 144 points to A1, 129 points to A4, and 111 points to A3. Deltabeam is considered to be the most rational alternative of the four beams compared. Calculations done using the Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS) analysis method revealed that composite beam A2 was the best slim floor structure alternative for an eight-storey high-rise commercial residential building frame, A1 ranked second, A4 ranked third, and A3 ranked fourth. In addition, the four composite beams were compared to a reinforced concrete beam (A5) according to three assessment criteria (beam cost including installation (C1), beam self-weight (C2) and fire resistance (C3)). Deltabeam was found to be efficient for use as a slim floor structure in a multi-story building due to having the lowest cost, including installation, and self-weight, and the highest fire resistance compared to other composite beams studied. Although Deltabeams are 1.4 times more expensive than reinforced concrete beams, including installation costs, they save about 2.5% of the building’s height compared to reinforced concrete beams.

Research of the Stainless Steel-Concrete-Carbon Steel Circular Concrete-Filled Double Skin Steel Tubes under Axial Compression

2014 ◽  
Vol 1065-1069 ◽  
pp. 1349-1353
Author(s):  
Zhen Kai Duan ◽  
Rui Wang
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Fire Resistance ◽  
Steel Tube ◽  
Steel Pipe ◽  
Building Structures ◽  
Light Pressure ◽  
Structure Variation ◽  
Concrete Filled Steel Tube ◽  
The Impact

Concrete-Filled Steel Tube with high capacity, good ductility and toughness, convenient construction, good fire resistance and other advantages. Currently[1] . Concrete-Filled Steel Tube structure has been widely used in the basic components and the overall structure of behavioral research has made many achievements. There are many advantages of concrete pipe above, but it also has fatal flaws, Stainless steel steel that is the difference[2]. The stainless steel has a beautiful appearance, durability, corrosion resistance, low maintenance costs, good fire resistance and other advantages. New stainless steel pipe concrete structure has both ordinary steel concrete good mechanical properties and excellent durability of stainless steel, can be widely used in buildings and bridges of the marine environment as well as some of the high durability and aesthetic requirements important building structures. Based on the outer stainless steel hollow sandwich - the carbon steel pipe shaft of light pressure test concrete results of load and displacement of the structure, variation of load and strain, and the impact of the empty heart of these parameters.

scholarly journals Field Measurements of Vibration on the Car Body-Suspended Equipment for High-Speed Rail Vehicles

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Jinying Guo ◽  
Huailong Shi ◽  
Fansong Li ◽  
Pingbo Wu
Keyword(s):  
High Speed ◽  
Field Measurements ◽  
Railway Vehicle ◽  
Elastic Suspension ◽  
High Speed Rail ◽  
Test Configuration ◽  
Car Body ◽  
Rail Vehicles ◽  
Frequency Domains ◽  
Low Pass

The vibrations in the flexible car bodies of the high-speed electric multiple units (EMUs) and their coupling effects with the bogies and other types of equipment vibrating have lead issues for railway operators and gained interest for researchers. Other than a numerical investigation, field measurements on the vibrating characteristics of the car body (CB) and its suspended equipment (CBSE) for a high-speed railway vehicle were performed to elaborate the vibrating characteristics on the CB and its CBSE. In this long-term tracking test, the running stability of vehicle and wheel-rail interaction were also examined with the increase of operation distance (OD), a total of 2,400,000 km. The test configuration and arrangements are introduced first, followed by the data analysis in time and frequency domains. It is seen that the wheelset conicity increases 0.008 per 10,000 km, which increases approximately linearly with the OD from 0.10 to 0.40. Two types of wheel treads, S1002CN and LMB10, have different ranges in conicity and reprofiling cycles. The lateral accelerations on CB in a downward-running case (0.5 g) are much greater than that in upward-running case (0.2 g) corresponding to the vehicle stability differences. The 15 Hz low-pass filtered acceleration on CB experiences a maximum of 0.10 g and an averaged amplitude around 0.05 g, whereas the frequency spectrum has peaks of 0.01 g on CB and 0.1 g on CBSE. It states that an elastic suspension between the CBSE and the CB prevents the high-frequency vibration from the CB.

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