Method of making a high strength and single use bed and gurney covering
United States Patent 6627032
Specific nonwoven fabrics having a good hand, high strength both wet and dry, and very high absorbency are useful for disposable health care and commercial bedding material. These fabrics are composed of randomly entangled natural and synthetic fibers interconnected so that the individual fibers are held in place to form a coherent, stable, strong fabric having a high absorption capacity. The fabrics are cut and converted to the desired dimensions. Bottom coverings can include elastic strips that can be fastened for a close fit to beds, cribs, gurneys and the like, regardless of shape.
Inventors:
Chester, Kenneth (Randolph, NJ)
Dees, Wilton F. (Weston, CT)
Mcguire, Joseph P. (Wilton, CT)
Reichman, Robert P. (Randolph, NJ)
Application Number:
Publication Date:
09/30/2003
Filing Date:
04/14/1999
Export Citation:
Fiber-Tec, Inc. (Morris Plains, NJ)
Primary Class:
Other Classes:
International Classes:
A47G9/02; D04H1/46; (IPC1-7): B32B31/00
Field of Search:
5/487, 156/93, 156/270, 28/103, 5/499, 156/299, 156/160, 5/49.7, 156/269, 156/229, 156/256, 19/161.1
View Patent Images:
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US Patent References:
5652041Buerger et al.428/1985508102Georger et al.442/4005500281Srinivasan et al.428/1315268222Honeycutt442/2705068936Blitzer5/4875026587Austin et al.428/915009747Viazmensky et al.162/1154774118Davis et al.428/714744118Lunt5/4874702957Mudge442/3274648186Dolman et al.34/94226231Andersen128/8703985130Wideman128/8463859678Davis5/4873765040Holstein5/4873654059N/AZisblatt428/4153629047Davison428/1103620903Bunting, Jr. et al.442/4153508308Bunting, Jr. et al.28/1043493462Bunting, Jr. et al.442/4053485706Evans428/134
Primary Examiner:
Gray, Linda
Attorney, Agent or Firm:
Parent Case Data:
This application claims priority from Provisional
application Serial No. 60/107,715 filed Nov. 9, 1998.
This invention relates to low cost, single use, strong
and absorbent coverings for health care and commercial bedding.
1. A method of providing disposable, strong, absorbent health care and commercial bedding which comprises providing a non-woven fabric comprised of randomly entangled mixtures of natural and synthetic fibers interconnected so that the individual fibers are held in place to form a coherent, stable, strong fabric having a high cutting the fabric to the desired length in and converting said fabric to a desired size and shape.
2. A method according to claim 1 wherein said natural fiber is cellulosic wood pulp.
3. A method according to claim 1 wherein said synthetic fiber is selected from the group consisting of a polyester, a nylon, a rayon, a polypropylene and mixtures thereof.
4. A method according to claim 1 wherein said synthetic fiber is polyester.
5. A method of providing disposable strong, absorbent health care and commercial bedding which comprises employing as the bedding material a fabric principally composed of polyester fibers combined with cellulosic wood pulp fibers, said fibers locked into place by a three-dimensional fiber entanglement wherein the individual fibers are intertwined, tangled and interconnected to each other so as to be virtually inseparable, said fabric having an absorptive capacity of at least that of woven fabric made of natural fibers, cutting the fabric to a desired length in the cross direction, and converting said cut fabric to a desired size and shape.
6. A method according to claim 5 wherein the fabric has a weight 0.5 to 10 ounces per square yard.
7. A method according to claim 5 wherein, after cutting said bedding material in the cross (CD) direction, a strip of elastic is attached along the edges to provide a close fit to a platform it is to cover.
8. A method according to claim 7 wherein the platform is a six-sided gurney.
9. A method of providing disposable, strong, moisture absorbent health care and commercial bed and gurney coverings which comprises employing as the bedding material a fabric principally composed of polyester fibers combined with cellulosic wood pulp fibers, said fibers interlocked by a three-dimensional fiber entanglement wherein the individual fibers are intertwined, tangled and interconnected to each other so as to be virtually inseparable, said fabric having an absorptive capacity higher than that of conventional bedding made from cotton-polyester blends, cutting across the fabric, and converting said bedding material to a desired shape suitable for a gurney covering, so that its strongest direction is along the cut direction of the covering.
10. A method according to claim 9 wherein the fabric is sized and shaped to fit a six-sided gurney.
11. A method according to claim 9 wherein the fabric is sized and shaped to fit a rectangular platform.
12. A method according to claim 9 wherein said bedding material is converted to withstand lifting up to 300 pounds without breaking or tearing.
13. A method according to claim 12 wherein said bedding material is wet.
14. A method of transferring a patient weighing up too about 300 pounds from a first platform surface to a second platform surface which comprises providing a platform covering comprising a fabric principally composed of polyester fibers combined with cellulosic wood pulp fibers, said fibers interlocked by a three-dimensional fiber entanglement wherein the individual fibers are intertwined, tangled and interconnected to each other so as to be virtually inseparable, said fabric having an absorptive capacity higher than that of conventional bedding made from cotton-polyester blends, cutting said fabric across the length to a desired size, turning said fabric ninety degrees, placing a patient upon said covering such that the patient is supported by the strongest direction of said fabric, lifting the covering and the patient above the surface of said first platform, and transferring the covering and the patient onto a second platform.
15. A method according to claim 14 wherein said covering is wet.
16. A method according to claim 1 wherein the bedding is manufactured so that the machine direction (MD) of the fabric runs in the cross direction (CD) of the product.
17. A method according to claim 5 wherein, after manufacturing said bedding material in the cross direction (CD), a strip of elastic is attached along the edges to provide a close fit to a platform it is to cover.
Description:
BACKGROUND OF THE INVENTIONConventional fabrics for use as bedding in the home and in the health care and commercial fields are generally made of natural fibers, such as cotton or linen, or mixtures thereof with polymeric materials such as polyester, rayon or nylon. These fabrics are comparatively expensive, but in the home they can be laundered for years, reducing the overall cost of the bedding. In the health care and commercial fields however, where numerous individuals use the same conventional linen, intensive laundering protocols are required to remove bodily fluids such as blood, urine and the like, that can cause disease and infections. Thus strong cleaning compounds, such as chlorinated bleach and strong detergents, as well as high temperatures, are required to effectively remove these bodily fluids from the bedding and break down or inactivate the infectious bodies. In turn these harsh laundering protocols begin to deteriorate conventional bedding fabrics, shortening their lifetime to only about 15-17 washing cycles, thus increasing their overall cost. Additionally, the laundering process itself is becoming more expensive. In a health care or commercial facility, the bedding first must be stripped, collected and handled multiple times each day, further adding to the cost of providing bedding for beds, gurneys, cribs, MRI platforms and the like.Further, health care and commercial providers must maintain a large inventory of sheets, pillow covers, gurney coverings and the like to ensure an adequate supply to meet daily and emergency requirements.The costs of purchasing and maintaining an adequate supply of clean bedding and coverings has continued to rise. This is due not only to purchase expenses, but also because of the disappearance of a considerable quantity of bedding. For example, patient transport emergency vehicles must also maintain a suppl when such vehicles are diverted to other health care facilities, such bedding is not returned to its original source. Theft on the part of health care and emergency care providers is not unknown either. Since conventional hospital linens are about the same size as those used in the home, they are equally useful there. Such losses can amount to several millions of dollars per year for a large hospital or commercial establishment.Thus a search for lower cost alternatives to conventional bedding has been sought. In particular, materials or fabrics that are inexpensive enough to be disposed of after each use, eliminating the need for laundering and handling, would be advantageous.In order to be cost competitive however, these materials must be inexpensive, but they must also be strong, i.e., they must be able to lift and transfer a patient, wet or dry, from one support surface to another, and they must have an absorbency equal to, and preferably better than, conventional bedding. In addition, the fabric must have a good hand and a texture that is comforta it must be easy to use, that is, be able to readily cover a surface platform such as a bed or gurney, and it must be readily removable from such surface platform as well.Disposable materials that have been used to date are made of organic materials, such as organo metallic chelates admixed with floc, or polymeric plastics such as polyethylene or polyester. However, such materials, whether they are extruded or “spun”, tend to stick to the skin, causing discomfort. Further, they have very limi thus once wetted, the individual must lie on a wet surface until the bedding is changed. Further, currently available disposable bedding tends to stretch under load, unlike conventional bedding. Present day standards for health care bedding require that they be able to lift a 300 pound weight without tearing, so as to be able to transfer a patient from one surface to another, as from a bed to a gurney, without dropping the patient, whether the bedding is wet or dry.To date, no alternative fabrics have been found that meet all of the present day requirements for disposable bedding for the health care field, or that have potential for commercial fields.SUMMARY OF THE INVENTIONWe have found particular non-woven, strong, lightweight, highly absorbent disposable fabrics that have excellent properties for health care and commercial bed, crib and gurney coverings. This non-woven fabric is comprised of non-woven, randomly entangled natural and synthetic fibers interconnected so that individual fibers are held in place to form a coherent, stable, strong fabric which resembles conventional spun or woven fabrics, particularly in terms of hand. These non-woven fabrics have an unexpectedly high absorbency.DETAILED DESCRIPTION OF THE INVENTIONAs used herein, the health care field applies to hospital care, acute care, nursing homes, infant care, as well as humanitarian aid and the like. Commercial fields include hotels, motels, hostels, nautical applications, sleeping bag liners and the like. Other like applications will present themselves to one skilled in the art, and are meant to be included herein.Fabrics useful in the present invention are described in several patents owned by duPont de Nemours and Company and sold under their trademark “SONTARA”(R). These include U.S. Pat. No. 3,485,706 to Evans, U.S. Pat. No. 3,493,462 to Bunting Jr. et al, U.S. Pat. No. 3,508,308 to Bunting Jr. et al and U.S. Pat. No. 3,620,903 to, Bunting, Jr. et al, all of which are incorporated by reference herein. Other manufacturers have similar products on the market and can be substituted for the above-described fabrics. These fabric they are slightly stretcha they need only be cut to the desired size and shape of the platform to be covered and finished, or “converted”. The fabric useful herein is principally composed of natural fibers combined with synthetic fibers. These hydroentangled webs display a textile-like hand, they are light in weight, weighing generally between 0.5 to 10 oz per square yard. They are at least as absorbent as, and generally more absorbent, than conventional fabrics made of natural or natural and synthetic blend materials. The addition of cellulosic compositions to the fabrics useful herein increases their absorbency by up to two to three times. They absorb fluids rapidly, and they are strong, whether wet or dry.These fabrics have been tested and compared both to bed coverings that include natural fibers, such as cotton, and to other bed coverings made of synthetic fibers made in accordance with various well known processes. The synthetic fibers used can be conventional materials such as rayon, nylon, polyester, polypropylene, mixtures thereof or mixtures with other staple fibers. The natural fibers useful herein include wood pulp, paper and the like. The fabrics are made by carding the synthetic fibers to remove clumps, forming fiber strands. These strands are then passed to collectors where they are formed as a single layer or web. Natural materials such as paper or a layer of wood pulp, can be added to the fiber layer. Water jet streams are then used to tangle the fibers so they become interconnected and strong, as explained in U.S. Pat. No. 3,485,706 to Evans, disclosed hereinabove.The above fabrics thus are light in weight, they are very strong, and, very importantly, we have found they are highly absorbent. In all cases, the above-described non-woven fabric useful in this invention is superior to other non-wovens tested for the present purposes. The non-woven fabrics useful in the invention can be cut into covering sheets and to fitted bottom sheets, for any size bedding platform, particularly including transport and treatment gurneys.Bottom sheets are fitted by attaching a strip of elastic along at least a portion of the edges of the covering, such as by sewing or gluing the elastic to the fabric.Treatment gurney mattresses are generally shaped in a six-sided configuration so that the head width is smaller than that of the shoulder or the foot. They have a larger and deeper mattress than transport gurneys. The present materials are particularly cost effective for such platforms. Fitted bottom sheets for these treatment gurneys are made using extra wide fabric, and elastic is used about the majority or all along the outer edge. Nevertheless, because these fitted sheets are of a non-standard size, and are generally narrower than conventional bed bottom sheets, they are not interchangeable. This size difference discourages pilfering. The additional fabric and additional elastic differentiates sheets used on rectangular platforms and those f they ensure that the sheet stays affixed to the mattress, particularly when the head or foot thereof is raised or lowered.Bottom sheets are preferably cut on the bias for added strength. Covering sheets can be cut either on the straight or on the bias. The coverings can be rapidly replaced on the bed, gurney or other platform surface, as required.The invention will be further described in the following examples, but the invention is not meant to be limited to the details described therein.EXAMPLE 1Five fabrics were tested for absorption capacity and speed of absorbency.Control 1 is a 120 count woven muslim fabric comprising 50% by weight of cotton and 50% by weight of polyester.Control 2 is a 180 count percale fabric made of 50% cotton and 50% polyester.Control 3 is a waffle weave polyproylene having a pleasant feel sold as “Protect A Med(R) by the Protect-A-Med Corporation of Fort Lauderdale, Fla. This product is in commercial use as a disposable covering.Control 4 is a fabric made from organo metallic chelates and floc sold by Hospital Disposable Linens, Inc of Fort Myers, Fla.: as “Flock-a-lite”. This fabric has a very smooth “plastic film” feel, is not breathable, has no nap and is very elastic. This product is also commercially available as a disposable bed covering.Control 3 is a waffle weave polypropylene having a pleasant feel sold as “PROTECT A MED(R)”, a trademarked product of the Protect-A-Med Corporation of Fort Lauderdale, Fla. This product is in commercial use as a disposable covering.Control 4 is a fabric made from organo metallic chelates and floc sold by Hospital Disposable Linens, Inc. of Fort Myers, Fla. as “FLOCK-A-LITE” fabric. This fabric has a very smooth “plastic film” feel, is not breathable, has no nap and is very elastic. This product is also commercially available as a disposable bed covering.Example 1 is a sample of the present invention made of a mixture of 45% by weight of polyester and 55% by weight of wood pulp, sold by duPont de Nemours and Company under their trademark SONTARA(R) for non-woven fabrics.TABLE IWeight,AbsorptiveAbsorbency Time,Sampleoz/yd2capacity, gmsec.Control 13.2413.51.6Control 23.409.91.2Control 31.36Did not wet after 60 minutesControl 41.408.318.0Example 12.0826.12.0Controls 3 and 4 were unsatisfactory because of their long absorbency times or complete lack of absorption. The present fabric has a higher absorptive capacity, almost double, that of the conventional natural fiber-containing mixtures of Controls 1 and 2. The absorption time is substantially the same, particularly as compared to other synthetic fabrics tested.The Controls and Example were also tested for tear strength, both breaking strength and tear strength. Breaking strength was tested according to ASTM text D5034-95 and tear strength was tested according to ASTM test D2261-96. The results are summarized below in Table II.TABLE IIBreakinq strengthTearing Strength, lbsFabricWarp (MD)Fill (CD)Warp (MD)Fill (CD)Control 152393.63.7Control 268462.52.9Control 327166.14.3Control 4871.61.1Example 130233.11.8Thus the highest strength fabrics included natural fibers, but the fabric of the present invention was better in break strength than the other synthetic fibers tested that are presently in use as disposable bedding.EXAMPLE 2This example simulates the ability of sheets made of the fabric as described above as useful herein to transfer a patient from one surface to another. The tests were done both dry and wet according to tear strength ASTM test D2261-96.A sheet of the fabric of the invention 39″×85″ in size was conditioned for 48 hours at 70° F. and 50% RH and spread out on a platform. A non-resilient liner was placed on the sheet, and steel weights having a total weight of 300 lbs were uniformly distributed about the center of the fabric. A total of six persons, one positioned at each of the four corners and one each in the middle of the long edges lifted the sheet three feet above the floor and held it there for 30 seconds. Although the sheet cut along the straight of the fabric failed at one of the lift locations at a long edge, the sheet cut along the bias sustained the 300 pound weight without any damage. Thus the present fabric is stronger when cut on the bias.The above test was repeated except that a quart of water was poured onto the fabric after the conditioning step. No failure of the wet sheet was noted at all.Although the invention has been described in terms of particular embodiments, one skilled in the art will recognize that various changes can be made by substituting like synthetic fabrics. The invention is only meant to be limited by the scope of the appended claims.
FreePatentsOnline.com. All rights reserved.Seismic Response and Seismic Isolation Mechanism of a Top Rotational System in a High-Rise Structure--《Structural Engineers》2011年05期
Seismic Response and Seismic Isolation Mechanism of a Top Rotational System in a High-Rise Structure
LIU Yipeng XIN Haohui CHEN Hongmin NAN Wenwen(College of Civil Engineering,Tongji University,Shanghai 20092,China)
The seismic isolation mechanism of a top rotational system in a high-rise structure consists of the elastic supports and the dampers,which were simulated with rubber bearings and miniature liquid dampers in the experiment.Through the calculation,comparison,statistics and analysis of the data according to the consequence of a great number of experiments,whose forms varied from the different frequency,amplitude and mass,to the different allocation or the number of elastic supports and dampers,the acceleration magnification factor,damping coefficients and natural frequency were generated,which helped to draw the conclusion that the anti-seismic systems able to provide positive effects for both the top rotational system and the lower high-rise structure.
【Fund】：
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supports all the CNKI
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【Citations】
Chinese Journal Full-text Database
Li Xiao-mei~1,Wang Hua-hui~2(1.Taiyuan City Vocational College,Taiyuan .China Academy of Building Research,Architectural Design Institute,Beijing 100013,China);[J];Earthquake Resistant Engineering and R2009-03
Dang Yu1,2,Huo Kai-cheng2(1.School of Civil Engineering,Lanzhou University of Technology,Lanzhou .Hubei Key Laboratory of Roadway Bridge & Structure EWuhan University of Technology,Wuhan 410050,China);[J];Earthquake Resistant Engineering and R2010-06
DU Yan ZHONG Tieyi LI Yu(Beijing Jiaotong University,Beijing 100044,China);[J];Structural E2008-04
YAN Xingxiang ZHU Yuhua(Department of Building Engineering,Tongji University,Shanghai 200092,China);[J];Structural E2010-05
【Co-citations】
Chinese Journal Full-text Database
Han B Lin S Zhu Bolong(TongJi University, Shanghai 200092);[J];BUILDING SCIENCE RESEARCH OF SICHUAN;1999-01
Guo-fang~1,LI
Siming~1,LU
Haoliang~1,CHEN
(1.College
Engineering,Tongji
University,Shanghai
2.Zhejiang
Architectural
Institute,Hangzhou
310006,China);[J];Building Science Research of S2001-02
CHEN Zhen-fu~1,KE Guo-jun~1,GUO Chang-qing~1,HU Shao-quan~2 SHI Jian-jun~1,SUN De-lun~1,CHEN Jun-jie~1 (1.College of Architecture,Resources and Environment Engineering,Nanhua University,Hengyang421001,C 2.Institute of Structural Mechanics,ACEP,Mianyang621900,China);[J];Building Science Research of S2004-02
LI Qing,LI Si-ming
ng,Tongji University,Shanghai200092,China);[J];Building Science Research of S2004-03
LIU Jie,FU Bao-liang((School of Civil Engineering and Architecture,Tianjin University,Tianjin 300072,China);[J];Building Science Research of S2005-06
WANG Xin~1,SHENG Qin-zhu~2,LI Ming~2,LU Zhou-dao~2 (1.Research Institute of Engineering Assessment and Repair,Shandong Architectural and Engineering Institute,Jinan .Tongji University,Shanghai 200092,China);[J];Sichuan Building S2006-01
LIU Hai-feng~1,ZHAO Bin~2(1.Qinghai Architectural Professional Technology Collgeg,Xinning .Research Institute of Structural Engineering and Disaster Reduction,Tongji University,Shanghai 200092,China);[J];Sichuan Building S2006-04
WANG Peng,ZHOU Donghua,ZHAO Huimin,WU Xiaoying(Faculty of Engineering & Architecture,Kunming University of Science and Technology,Kunming 650224,China);[J];Sichuan Building S2009-03
GUAN Pinwu1,GUO Haifeng1,LEI Shifa2(1.School of Civil Engineering,Zhengzhou University,Zhengzhou .Henan Xinpu Building Group Co.,Ltd,Henan,Zhengzhou 450000,China);[J];Sichuan Building S2009-05
QIAN Kun1,YIN Xinsheng1,ZHU Shan2(1.School of Civil Engineering,Jilin Architectural and Civil Engineering Institute,Changchun .Jilin University,Changchun 130026,China);[J];Sichuan Building S2010-01
China Proceedings of conference Full-text Database
Hetao Hou~(1,2,3) Lu Chen~3 Guo-Qiang Li~(2,4) Canxing Qiu~3 (1 Laiwu Steel Group Limited,Laiwu, School of Civil Engineering,Tongji University,Shanghai,
School of Civil Engineering,Shandong University,Jinan, State Key Laboratory of Disaster Reduction in Civil Engineering,Shanghai,200092);[A];[C];2010
Li Bing Wang Qiang Chen Xin (Department of Civil Engineering,Shenyang Jianzhu University,Shenyang 110168,China);[A];[C];2007
Fan Changlin Zhang wenfang (1.Taiyuan City Vocational College City cons(?)truction deprtment,2.Taiyuan University of Technology);[A];[C];2007
Jianbo ZHENG~1,Huanjun JIANG~2,Linzhi CHEN~2 (1.Educational Technology and Equipment Station in Nanhui District,Shanghai 201300,C 2.State Key Laboratory of Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China);[A];[C];2009
PAN Yi~(1,2),ZHAO Shichun~(1,2),YANG Cheng~(1,2),LIN Yongjun~(1,2),DAI Jie~1 (1.School of Civil Eng.,Southwest Jiaotong University,Chengdu 610031,C 2.Key Laboratory of Seismic Engineering of Sichuan Province,Chengdu 610031,China);[A];[C];2009
WANG Heng~(1,2),ZHANG Xin~(1,2),JIA Liu-dong~(1,2),XIA Feng-min~(1,2) (1.Institute of Engineering Appraisal and Strengthening,Shandong Jianzhu University,Jinan .Shandong Provincial Key Laboratory of Appraisal and Retrofitting in Building Structures,Jinan 250101);[A];[C];2010
Chen Xiaofeng~1,Deng kaiguo~1,Hao Jiping~2 (1 China Southwest Architectural Designing and Research Institute,Chengdu 610081,C 2 Xi'an University of Architect and Technology,Xi'an,710055,China);[A];[C];2009
Chen Fangming,Lu Jia,Li Longchun (Center for Engineering Design and Research under the General Equipment Department,Beijing 100028,China);[A];[C];2009
Chen Juan Liu Jian Yin Fei Chen Delei (Guangzhou University,Guangzhou Guangdong 510405,China);[A];[C];2009
Li Ting~1,Zhao Nan~1,Nie Jianguo~2,Zhang Yong~1,Ma Kai~3 (1.Beijing Institute of Architectural Design,Beijing 100045,C 2.Department of Civil Engineering,Tsinghua University,Beijing 100084,C 3.Department of Aerospace and Civil Engineering,Harbin Engineering University,Harbin,Heilongjiang 150001,China);[A];[C];2010
【Secondary Citations】
Chinese Journal Full-text Database
Qi Ai(College of Civil Engineering and Architectures,Fuzhou University,Fuzhou 350002,China);[J];Earthquake Engineering and Engineering V2004-06
Wang Jianqiang~(1), Guan Pinwu~1, Yao Qianfeng~(2) (1.College of Civil Engineering, Zhengzhou University, Zhengzhou 450002, C 2.College of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China);[J];Earthquake Engineering and Engineering V2005-01
Liu Yingli~(1),Wang Shaojie~(1),Su Youpo~(1),Su Jingyu~(2)(1.College of Civil and Architectural Engineering,Hebei Polytechnic University,Tangshan .Institute of Earthquake Engineering,Beijing University of Technology,Beijing 100022,China);[J];Earthquake Engineering and Engineering V2006-06
JIN Jian-min,TAN Ping,HUANG Xiang-yun,ZHUANG Xue-zhen,SHEN Chao-yong(Earthquake Engineering Research & Test Center,Guangzhou University,Guangzhou 510405,CGuangdong Key Laboratory of Earthquake Engineering & Applied Technique,Guangzhou 510405,China);[J];Journal of Guangzhou University(Natural Science Edition);2008-01
Ye X[J];JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE);1998-05
DU Yan ZHONG Tieyi LI Yu(Beijing Jiaotong University,Beijing 100044,China);[J];Structural E2008-04
ZHU Yuhua ZHUANG Wenjuan~* HUANG Hairong(College of Civil Engineering,Tongji University,Shanghai 200092,China);[J];Structural E2009-06
ZHOU Jing ZHAO Weifeng LIU Zhiling Civil Engineering and Mechanics College,Xiangtan University,Xiangtan 411105,C[J];Advances in M2009-01
Huang Rui,Jin Jianmin(Gansu Provincial Architectural Design and Research Institute,La nzhou730030,China);[J];;2003-04
ZHOU Yong-ping, CHANG Quan-wen (Gansu No.7 Construction Engineering Group Company, Lanzhou, Gansu
730000, China);[J];Construction T2005-03
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