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- Research on the Length of Plastic Hinge of Partially Prestressed Beams 部分预应力混凝土梁塑性铰区长度的研究
- Based on the experiment of two unbonded partially prestressed flat beam-column joints,this paper studies the effect of steel fiber in the unbonded partially prestressed flat beam column joints. 通过两个无粘结部分预应力扁梁柱节点的试验，研究了钢纤维在无粘结部分预应力扁梁柱节点中的作用。
- The ductility can be improved by adopting partial prestressed concrete section . 采用部分预应力混凝土截面能有效改善延性。
- This paper presents cheeking computations, experimental process andexperiment results of dead load test on partially prestressed concrete T-beam ofXinxing overpassbridge. 介绍了新兴立交桥部分预应力T梁检算、静载试验过程和试验结果。通过理论分析及试验结果表明。
- And a design example suggest that tbe lateral influence of structuralwill reduce the ultimate capacity of prestressed beam. 同时，以设计实例证明侧限作用将降低预应力梁的承载力。
- In recent years, the mixed reinforcement partially prestressed concrete (P.P.C) has been widely used in the engineering structure, especially in great size structures. 近年来,混合配筋部分预应力混凝土在工程结构中已经普遍使用,特别是在大尺寸的结构当中。
- Study results show that partially prestressed concrete beams with CFRP tendons still exhibit favorable bending capacity, rigidity and ductility after fatigue damage. 研究表明，疲劳损伤后部分预应力CFRP筋混凝土梁仍具有较高的承载力、较大的刚度以及较好的延性。
- Shuangliu Guangdu Road Pedestrian Bridge is a three-span partial prestressed continuous rigid frame bridge, possesses Europeanize architecture style outside. 双流广都大道人行天桥外部建筑风格为欧式建筑风格 ,结构形式为三跨现浇部分预应力混凝土连续刚构桥。
- In this paper, fourteen unbonded partial prestressed concrete rectangular beams with different longitudinal reinforcement ratios were tested under low cyclic loadings. 本文对不同配筋率的14根无粘结部分预应力混凝土梁进行了低周反复荷载试验。
- Based on the practical project the effect of the symmetrical secant method on the effective prestress of the pretensioned slab and the anchoring result of the prestress beam is determined. 结合实际工程测定对称割线法对先张板有效预应力及预应力筋锚固效果的影响,并与千斤顶放张法及理论计算的结果进行比较分析,验证了这一新工艺的可行性。
- Combined with practical work,from setting isolation layer,installation of formwork,duck leakage and other aspects the problems existed in prefabrication of prestressed beam slab are pointed out. 根据施工实践,从隔离层的铺设、模板的安装、孔道漏浆、梁板封锚混凝土等方面提出了预应力梁板预制中存在的问题,分析了其产生原因,介绍了预防措施,以提高其预制质量。
- The continuous prestressed beam was constructed with cantilever construction,this construction was high of technology,so the bridge was supervised and controlled in the whole construction. 预应力混凝土连续梁桥采用挂篮现浇悬臂施工,施工技术要求高,为使得该桥顺利合拢,符合设计要求,对该桥进行施工控制。
- Based on the test results of 14 unbonded partially prestressed con crete beams, the distribution and development of the cracks and the stress of the unbonded bars of the beams are investigated under service load. 本文通过14根无粘结部分预应力混凝土梁的试验,探讨了在使用阶段允许出现裂缝的无粘结部分预应力混凝土梁的裂缝分布和开展以及无粘结预应力钢筋应力的变化规律。
- The paper proposes more reasonable equations of ultimate shear strength of unbonded partially prestressed concrete flat beam-column joints by analyzing with the equations provided by other references. 在分析其它文献提出的极限抗剪强度计算公式的基础上，提出了更为合理的无粘结部分预应力扁梁柱节点极限抗剪强度计算公式。
- The nonlinear behavior of partially prestressed concrete skew curved slab bridge with unbonded tendons is analyzed by using the eight-node medium thickness plate laminated finite element model. 建立了八结点中厚板等参分层有限元模型,对无粘结部分预应力混凝土斜弯板桥进行了非线性有限元分析,并与试验结果进行了比较,二者符合较好。
- Design of Partial Prestressed Frame Beam of a Lecture Theater 阶梯教室部分预应力框架梁工程的设计
- In the externally prestressed beam specimens, the prestressing increments of bonded CFRP tendons are much larger than those of external ones. 体外预应力梁中体内预应力筋的应变增量比相应的体外预应力筋大得多；
- In jacking of a strand in partial prestressed concrete girder, the total jacking force of the strand is the sum of controlled jacking force versus friction force inside jacks, and the friction force between strand and anchorage. 在部分预应力混凝土钢绞线张拉施工中 ,钢绞线总张拉力为控制张拉力与千斤顶内摩阻力、钢束与锚具的摩阻力之和。
- Axial compress is produced by the tension of prestressing beam, which engenders the third moment of column. 预应力筋的张拉会造成梁的轴向压缩,在柱中引起第3弯矩,但在工程设计中通常忽略这一因素影响。
- The experiences of most countries in the last 40 years on engineering practice have shown that the partial prestressed concrete structures in most cases are more economical, resonable and adoptable inservice. 近40年来的国际工程实践经验表明:部分预应力混凝土结构往往更为经济、合理且具有良好的使用性状。
