| 1. | The fatigue experiment of six recycled coarse aggregate concrete beams and one ordinary concrete beam has been made 对6根再生粗骨料钢筋混凝土梁及1根普通钢筋混凝土梁的抗弯疲劳性能进行了试验研究。 |
| 2. | For common reinforced concrete and steel reinforced concrete columns with axial compression , it is pointed out that the same stability coefficient can be adopted and closed reliability level can be provided 提出对于普通钢筋混凝土与型钢混凝土轴心受压柱,可采用相同的稳定系数,并具有基本相同的可靠度水准。 |
| 3. | The problem of the reinforcement corrosion has already drawn the wide attention of the academic circles , and has been conducted the massive research . however the reinforcement corrosion of air - entrained concrete has not been taken into the systematic research 国内外学者对普通钢筋混凝土进行了大量研究,得出了很多重要的结论,但对引气混凝土的抗钢筋锈蚀性能研究则较少。 |
| 4. | The hollow shear wall not only have the advantages of traditional shear wall , such as the good capability of resisting earthquake action , but also overcome the shortcoming of traditional shear wall , such as the large self - weight , stiffness and seismic residences ,这种剪力墙即保持了普通的钢筋混凝土剪力墙抗震性能强的优点,又克服了普通钢筋混凝土剪力墙自重大、刚度大、地震作用大等缺点。 |
| 5. | Different from the construction of rc , the construction of pc needs high technique . there is a close relation between design and construction , and different manner of construction would result in different internal force of structure 预应力混凝土结构的施工不同于普通钢筋混凝土结构的施工,其对技术有较高的要求,且预应力结构在设计与施工上关系密切,施工方式的不同有可能造成结构内力的不同。 |
| 6. | The truss type steel reinforced concrete is a pattern of the lattice type steel reinforced concrete . it is regarded that the seismic behavior of the truss type src is lower than the full - web type src members 桁架式钢骨混凝土是空腹式钢骨混凝土( steelreinforcedconcrete ,以下简称src )的一种,一般认为其抗震性能不及实腹式src构件,而与普通钢筋混凝土( reinforcedconcrete ,以下简称rc )构件基本相同。 |
| 7. | Previous research showed that the unbonded prestressed concrete member has the similar ductility to the commom reinforced concrete member , while the energy - dissipating capacity is worse that can be found from the narrow hysteretic characteristic 以往的研究也表明:无粘结预应力混凝土构件具有与普通钢筋混凝土构件相近的延性,但其耗能能力随着预应力度的加大而有所降低,表现在滞回环的捏拢现象越来越明显。 |
| 8. | The experimental results show that there are few differences in the mechanical properties between normal concrete slabs and lightweight aggregate concrete slabs which are made by haydite as coarse aggregate . at the same time , the haydite concrete proved that it is available in practice 试验研究结果说明,以南宁市福民节能保温陶粒制品厂生产的陶粒作粗骨料的轻质混凝土板,其受力性能与普通钢筋混凝土板没有什么差别,可以用于工程实际。 |
| 9. | Firstly this text studied the super thick planceer of mass concrete of high - rise building with ten characteristics comparing with the common reinforced concrete , according to the above characteristic from three aspect including the reinforcing bar project , the concretes project and the form project , elaborate the construction characteristics of super thick mass concrete planceer of high - rise building , have a detailed explanation of the big reinforcing bar link technique and the pump technique of the prepared concrete 首先本文研究了高层建筑超厚底板大体积混凝土的与普通钢筋混凝土相比具有的十个特性,根据上述特性从钢筋工程、模板工程、混凝土工程三个方面阐述了高层建筑超厚底板大体积混凝土的施工特点,重点就钢筋连接技术、预拌混凝土泵送技术进行详细论述。 |
| 10. | Through the experimental and theoretical analyzing results , the conclusion can be summarized as follows . 1 ) the yielding load and ultimate bearing capacity of the beam are not affected by the value of the load under that load the cfrp sheets were retrofitted , but the value will affect the stiffness of the beam , especially the average tangent stiffness after rebar yielding . 2 ) the stiffness of cracked beams retrofitted with cfrp sheets is larger than that of the normal rc beams 通过试验结果分析发现,采用cfrp加固的钢筋混凝土梁的刚度较普通钢筋混凝土梁的刚度有明显提高,纤维布对承受以抗弯为主的构件具有增强刚度、控制挠度的作用;纤维加固时梁所承受的荷载大小,即加固时梁内已存在的弯曲裂缝的宽度对梁的屈服荷载及极限承载力影响不是很大,但对梁的刚度有较大影响,特别是对纵筋屈服后的刚度影响较大。 |