40 results
find (ReportNumber ct 200 : 249)
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1.
1983 ... J.A. Ramirez and John E. Breen · The object of this study is to propose and evaluate a design procedure for shear and torsion in reinforced and prestressed concrete beams, with the aim of clarifying and simplifying current design requirements and AASHTO requirements. In previous reports in this series a three-dimensional space
248-4 F [CTR] ... FHWA/TX-84/38+248-4F
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2.
1983 ... J.A. Ramirez and John E. Breen · The object of this study is to propose and evaluate a design procedure for shear and torsion in reinforced and prestressed concrete beams, with the aim of clarifying and simplifying current design requirements and AASHTO requirements. This report summarizes an extensive experimental
248-3 [CTR] ... FHWA/TX-84/37+248-3
Full-text Link:
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3.
1983 ... J.A. Ramirez and John E. Breen · The object of this study is to proposed and evaluate a design procedure for shear and torsion in reinforced and prestressed concrete beams, with the aim of clarifying and simplifying current design provisions and AASHTO standard specifications. This report summarizes an extensive literature
248-2 [CTR] ... FHWA/TX-84/36+248-2
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4.
1983 ... K. Koseki and John E. Breen · The joints between the precast segments are of critical importance in segmental bridge construction. They are critical to the development of structural capacity by ensuring the transfer of shear across the joints and often play a key role in ensuring durability by protecting the tendons against
248-1 [CTR] ... FHWA/TX-84/32+248-1
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5.
1983 ... by John D. Pass, Karl H. Frank, and Joseph A. Yura · The fatigue performance of a twin girder steel bridge in Dallas was investigated in this project. The fatigue life of the bridge was estimated using the results of field tests to determine the bridge's response to traffic loads and analytical and experimental studies to determine the fatigue
247-5 F [CTR] ... FHWA/TX-83/9+247-5F; CTR 3-5-79-247-5F
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6.
1983 ... by Peter W. Hoadley, Karl H. Frank, and Joseph A. Yura · Fatigue studies were conducted on a twin-girder, multilaned highway bridge. Two types of stress histories were measured at several locations on the bridge. One type of stress history was measured during the passage of a test truck of known weight. Stress histories were
247-4 [CTR] ... FHWA/TX-83/8+247-4; CTR 3-5-79-247-4
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7.
1982 ... by Antonio J.F.P. Leite, Karl H. Frank, and Joseph A. Yura · The fatigue performance of flange transition butt-welded splices has been evaluated. Analytical solutions for the stress gradient correction. F sub G, are generated using a finite element method. The 1 to 2-1/2 slope transition recommended by the AASHTO
247-3 [CTR] ... FHWA/TX-82/27+247-3; CTR 3-5-79-247-3
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8.
1981 ... Joseph a. Yura, Karl H. Frank, A.K. Gupta · The structural behavior of a twin girder continuous steel bridge was studied in the field to provide data for a fatigue evaluation of the structure. Girder strains and deflections were measured under normal traffic and with a 52,000-lb test truck traveling at various speeds up to 50
247-2 [CTR] ... FHWA/TX-81/38+247-2
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9.
1981 ... D. A. Platten, K. H. Frank, and J. A. Yura · "The primary objective of this study is to establish an analytical estimate of the fatigue life of a longitudinal transverse stiffener intersection bridge detail. A finite element model of the detail in question is utilized to determine the influence of geometry on the stress at the end of the longitudinal
247-1 Summary [CTR] ... 247-1(S); PSR ... Summary Report (Center for Highway Research)
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10.
1981 ... by D.A. Platten, K.H. Frank and J.A. Yura · The fatigue life of the intersection of a longitudinal and transverse stiffener was estimated using the principles of fracture mechanics. A quarter section of a stiffened girder was analyzed using a three-dimensional finite element representation. The intersection area was then studied in
247-1 [CTR] ... FHWA/TX-81/24+247-1; CTR 3-5-79-247-1
Full-text Link:
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11.
1983 ... David W. Fowler, Alvin H. Meyer, Donald R. Paul · Polymer concrete (PC) has been widely used for repairing concrete bridges and pavements. The primary advantages are its rapid curing and high strength. The materials include a monomer, a cross linking agent, a promoter, an initiator, and an aggregate. Other materials can
246-4 F [CTR] ... FHWA/TX-84/02+246-4F
Full-text Link:
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12.
1983 ... David W. Fowler, Alvin H. Meyer, and Donald R. Paul · Polymer concrete has been used for several years to repair concrete bridges. This report summarizes research performed to develop materials and procedures for repairing concrete pavements. Optimization studies were performed to develop monomer formulation which would
246-3 [CTR] ... FHWA/TX-84/40+246-3
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13.
1983 ... by Mark E. Bukowski, Richard L. Tucker, David W. Fowler · This report describes the preliminary theoretical and experimental investigations of a technique for void detection beneath concrete pavements. The technique is based upon use of infrared thermography and the hypothesis that the surface temperature of the
246-2 [CTR] ... FHWA/TX-84/39+246-2; CTR 3-18-79-246-2
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14.
1981 ... by Alvin H. Meyer, B. Frank McCullough, David W. Fowler · This report describes two punchout repairs made in a continuously reinforced concrete pavement (CRCP) using precast portland cement panels. The two repairs, one 12 foot by 12 foot, the other 6 foot by 6 foot, were completed and opened to traffic in one afternoon.
246-1 [CTR] ... FHWA/TX-81/26+246-1; CTR 3-18-79-246-1
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15.
1980 ... by Han-Jei Lin, Clyde E. Lee, Randy B. Machemehl · An overall analysis of traffic data acquisition and distribution processes and techniques as performed by the Transportation Planning Division (D-10) of the State Department of Highways and Public Transportation is presented in this report. An assessment of needs for traffic
245-1 F [CTR] ... 0-245-1F; CTR 3-10-78-245-1F
Full-text Link:
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16.
1982 ... Gerald Lowe and Lymon C. Reese · Research Report 244-2F concerns the design of drilled-shaft foundations for use with Overhead Sign Bridges. Design procedures for single and double-shaft systems are presented, with attention given to the effects of soil-structure and structure-structure interaction. · "The Research
244-2 F Summary [CTR] ... 0-244-2 F(S); PSR ... Summary Report (Center for Transportation Research),
Full-text Link:
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17.
1982 ... Gerald Lowe and Lymon C. Reese · The behavior of laterally loaded piles was investigated using the finite difference computer program COM623. A thorough search of the literature was undertaken to find the results of lateral load tests performed in clay and sand. The results of these analyses indicate that most of the p-y criteria,
244-2 F [CTR] ... FHWA/TX-82/08+244-2F; CTR 3-5-78-244-2F
Full-text Link:
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18.
1979 ... Barry J. Meyer and Lymon C. Reese · The behavior of laterally loaded piles was investigated using the finite difference computer program COM623. A thorough search of the literature was undertaken to find the results of lateral load tests performed in clay and sand. The results of these analyses indicate that most of the p-y criteria,
244-1 [CTR] ... FHWA/TX-79/38+244-1; CTR 3-5-78-244-1
Full-text Link:
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19.
1982 ... Clyde E. Lee · A means for coordinating the timing of traffic-actuated signal controllers at intersections along an arterial route is needed so that progressive movement can be provided when justified, but so that normal functioning of the local controller will not be affected during those periods of time when progression for arterial
243-1 F Summary [CTR] ... 0-243-1F(S) Report ... Summary Report (Center for Transportation Research),
Full-text Link:
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20.
1982 ... by Clyde E. Lee · DARTS is an auxiliary solid-state electronic timing and switching device which can be connected directly to any modern (NEMA Standards) full-actuated traffic signal controller for the purpose of coordinating the timing of pairs of such controllers at adjacent intersections in such a way that progressive
243-1 [CTR] ... FHWA/TX-82/25+243-1F; CTR 3-18-78-243-1F
Full-text Link:
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21.
1981 ... James O. Jirsa and John E. Breen · In Report 242-1, "The Influence of Casting Position on Development and Splice Length of Reinforcing Bars," and Report 242-2, "The Influence of Shear on Lapped Splices in Reinforced Concrete," the details and results of the experimental investigation on the influence of casting position and shear on
242-3 F [CTR] ... FHWA/TX-81/35+242-3F; CTR 3-5-78-242-3F
Full-text Link:
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22.
1981 ... by A. J. Zekany [and three others] · The primary objective of this investigation was to study the effects of level of shear, amount of transverse reinforcement, and casting position on the strength of lapped splices. A limited number of tests were conducted to examine the influence of concrete strength, slump, and bar size on splice
242-2 [CTR] ... FHWA/TX-81/20+242-2; CTR 3-5-78-242-2
Full-text Link:
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23.
1981 ... by J. J. Luke [and three others] · The objective of this study was to reexamine the development and splice length requirements for top cast bars based on a comparison of stresses developed at ultimate rather than at a specified value of loaded end slip. To understand the historical development of design provisions for the influence of
242-1 [CTR] ... FHWA/TX-81/15+242-1; CTR 3-5-78-242-1
Full-text Link:
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24.
1983 ... C. Michael Walton and Chien-pei Yu · The primary purpose of Report 241-6F was to study and discuss the economic impact on the state of Texas made by the movement of oversize-overweight trucks on the state's highways. A 100 percent compliance case was set up in order to provide comparison with actual case data. · Publ.
241-6 F Summary [CTR] ... Report 0-241-6F(S); PSR ... Summary Report (Center for Transportation
Full-text Link:
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25.
1983 ... by C. Michael Walton and Chien-pei Yu · The current state regulations affecting motor vehicle sizes and weights, agencies involved directly or indirectly in the enforcement of these regulations, characteristics of oversize-overweight vehicle movements within the state (both legal and illegal movements), and the cost of these vehicle
241-6 F [CTR] ... 0-241-6F
Full-text Link:
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26.
1983 ... C. Michael Walton, Chien-pei Yu, and Paul Ng · One important element in the assessment of impacts due to change in legal truck weight limits is the prediction of the shifting of future truck weight distribution as affected by the change. A number of methodologies have been developed for this purpose. However, with the availability of
241-5 summary [CTR] ... PSR 0-241-5(S) ... Summary Report (Center for Transportation Research), 0-241
Full-text Link:
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27.
1983 ... C. Michael Walton, Chien-pei Yu, and Paul Ng · In recent years, maximum legal truck size and weight limits have become major issues in the United States. The assessment of impacts due to changes in maximum limits is an ongoing dynamic problem faced by many highway departments and State legislatures. It has been difficult to
241-5 [CTR] ... 0-241-5
Full-text Link:
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28.
1982 ... C. Michael Walton [and three others] · Research Report 241-4 is a compilation of material from vehicle size and weight studies undertaken by separate states. It is part of a series of studies conducted by the Center for Transportation Research to assess the areas that are affected by the 1974 and 1976 amendments to the Federal Aid
241-4 Summary [CTR] ... 241-4 (S) ... Summary Report (Center for Transportation Research), 0-241-4
Full-text Link:
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29.
1982 ... C. Michael Walton [and three others] · With the growing interest nationally in the effects of increased size and weight of motor carriers on the existing highway infrastructure, there is a need to remain current on the various studies being conducted by the various states. This report documents the status of current legislation of
241-4 [CTR] ... 0-241-4
Full-text Link:
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30.
1981 ... C. Michael Walton and Ogilvie Gericke · In Texas, a study is underway to evaluate some of the effects of operating larger and heavier vehicles on the highway system. Initial results, using a study technique modified from NCHRP Report 141, showed estimated pavement costs, bridge costs, truck operating cost savings, and fuel savings
241-2 summary [CTR] ... PSR 0-241-2(S) ... Summary Report (Center for Transportation Research), 0-241
Full-text Link:
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31.
1981 ... C. Michael Walton and Ogilvie Gericke · Among the many issues surrounding motor vehicle size and weights, specifically an increase in truck size and weights, is the concern of the impact any change would have on the operational characteristics of rural highways. Today's highway network in any given area is the result of an
241-2 [CTR] ... 0-241-2
Full-text Link:
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32.
1978 ... James L. Brown [and three others] · The object of the study was to assess the effects of projected truck traffic on the highway system of Texas in consideration of the social and economic vitality of the State. | The study included the evaluation of the costs and benefits for a twenty-year planning horizon. Alternative scenarios of future
231 Interim Summary [CTR/TTI] ... PSR 0-231-Int.(S) ... Summary Report (Texas Transportation Institute),
Full-text Link:
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33.
1978 ... James L. Brown [and three others] · The object of the study was to assess the effects of projected truck traffic on the highway system of Texas in consideration of the social and economic vitality of the State. | The study included the evaluation of the costs and benefits for a twenty-year planning horizon. Alternative scenarios of future
231-Interim [CTR/TxDOT] ... DHT-1-8-78-231-I; 0-231-1
Full-text Link:
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34.
1979 ... Yi-Chin Hu [and three others] · Road surface roughness in the proximity of the pavementbridge interface may lower riding quality and induce excessive dynamic wheel loads on highway structures. Twenty-one bridge sites in four Texas State Department of Highways and Public Transportation Districts, Lubbock, Houston, Austin, and San
213-1 F [CTR] ... 0-213-1F
Full-text Link:
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35.
1978 ... by C. Michael Walton, Thomas W. Horne, and William K. Fung · This study was initiated with an extensive literature review and survey of left-turn median lane practices in Texas cities. The initial phase identified characteristics of urban arterial accidents, basic design elements, current use of left-turn lanes, and existing
212-1 F [CTR] ... FHWA/TX-78/06+212-1F; CFHR 3-8-76-212-1F
Full-text Link:
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36.
1979 ... Bruce Creamer, Karl H. Frank and Richard Klinger · This is the final report of an experimental and analytical study to determine the fatigue loading on cantilever highway signs from gusts produced by trucks passing under the sign. Thee sign structures were instrumented in the field to determine their response from truck gusts.
209-1 F [CTR] ... FHWA/TX-79/10+209-1F
Full-text Link:
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37.
1981 ... W.C. Stone and John E. Breen · Several large thin-webbed box girders, with post-tensioned anchorage zones designed in accordance with AASHTO and ACI requirements, have experienced large cracks along the tendon path in the anchorage zones at the design stressing load. Cracking of this nature provides a path for penetration of
208-3 F [CTR] ... FHWA/TX-81/14+208-3F; CTR 3-5-77-208-3F
Full-text Link:
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38.
1981 ... by W.C. Stone, W. Paes-Filho, and J. E. Breen · Several large, thin-webbed box girder bridges, with post-tensioned anchorage zones designed in accordance with AASHTO and ACI requirements, have experienced large cracks along the tendon path in the anchorage zones at the design stressing load. Cracking of this nature provides
208-2 [CTR] ... FHWA/TX-81/8+208-2; CTR 3-5-77-208-2
Full-text Link:
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39.
1981 ... by W.C. Stone and J. E. Breen · Several large thin-webbed box girders, with post-tensioned anchorage zones designed in accordance with AASHTO and ACI requirements, have experienced large cracks along the tendon path in the anchorage zones at the design stressing load. Cracking of this nature provides a path for penetration of
208-1 [CTR] ... FHWA/TX-81/13+208-1; CTR 3-5-77-208-1
Full-text Link:
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40.
1983 ... Robert E. Cornwell, Richard W. Stolleis, C. Phillip Johnson · This research focused on developing a pre-processor (data generator) and a post-processor for an existing computer program, SLAB49, for the analysis of integral grid-beam systems. The pre- and post-processors were specialized for four widely used bridge classes: (1)
201-1 F [CTR] ... FHWA/TX-83/18+201-1F
Full-text Link:
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