进行了小尺寸混凝土试件温度试验，拟定了钢筋混凝土框架结构温度作用试验方案。通过对此框架在温度作用及温度、机械荷载共同作用下的试验研究，观测了温度裂缝发生和发展的过程。试验结果与钢筋混凝土非线性有限元分析结果基本吻合。

The static and dynamic flexural-tensile properties of fully-graded concrete are important for the seismic safety design of high arch dams. In this paper, the static and dynamic flexural-tensile properties of fully-graded concrete of high arch dam were studied through tests. The fully-graded concrete was loaded by electro-hydraulic servo device. In the static test, the loading rate was 250N/s. In the dynamic test, earthquake was simulated by repeating loading of triangle wave with fluctuating amplitude and 1Hz frequency. Some results were achieved from these tests. Compared with the static test, the flexural strength, initial Young's modulus and cracking strain were increased in dynamic test. The phenomena in the tests showed that the concrete wasn't destroyed immediately after it was cracked. The measured crack load was about 90% of the failure load. Besides, the fracture of large-size aggregates on fracture surface of specimens were also observed obviously. These results from the tests provide effective references for the seismic safety evaluation of structures such as high arch dam.

The experimental study on the behavior of bond-slip between earthquake -resisting bars and concrete in Xiaowan arch dam is conducted. Tests are conducted on four groups of specimens. The position dependent constitutive relationship of bond-slip between the concrete and bars is obtained. The method can provide sufficient data for plotting the distribution of steel stress, bond stress, and slip. Finally, several practical conclusions are drawn.

The corrosion damage of reinforced concrete balustrades of LianYun-Harbor west dam is investigated by on-site and lab testing. The contents of investigation include outlook-check on site, un-damaged test, and lab-test of on-site samples. It shows as follow: Cl- penetration is the direct reason of concrete corrosion damage under marine environment, and poor construction quality is the main reason. At the same time the primary design is not reasonable. Reinforcement corrosion in concrete is the synthetic effect of environment, construction and design. Now, the corrosion has threatened the normal function of balustrade structure and the balustrade structure needs repair and rehabilitation.

钢筋混凝土框架结构正常使用期间都是带裂缝工作的，合理的分析方法必须考虑因开裂引起的非线性。本文在杆系结构有限元基础上，根据构件截面广义应力－应变关系，提出了空间框架结构非线性分析的一种简化数值方法——网格－等效截面法。该方法能考虑材料非线性，混凝土开裂导致构件有效刚度降低，混凝土徐变以及加载历程等影响因素。文中给出了相应的实施步骤，并采用借助通用有限元软件ANSYS部分功能，自编主体计算程序的混合编程方法编制了程序。通过考题，本文程序正确，计算精度满足工程要求。最后，采用本文程序，对荷载和温度作用下的某超长框架结构进行计算。