型钢

Mechanism of the components in antirusting solution for large steel structurepretreatment of coating was investigated and the solution formula was optimized.

研究了防锈液中各成分的作用机理和最佳配方，适用于大型钢结构的涂装前处理。

Key parameters measured are bond stress and slip between structural steel and concrete.

测量的关键参数是型钢混凝土之间的粘结应力和滑移。

The distribution mode of bond stress is noted on the flange and the web of structural steel.

提出了型钢翼缘和腹板处的粘结应力分布模式和极限粘结强度的算法。

Easy superimpose method has been ofen adopted in the design of SRC structure.

简单叠加法是计算型钢混凝土梁正截面承载力常用的一种方法。

Fourth, increase the export tax rebate on the hot roll, plate, strip, coated plate, steel, pipe, and some such as seamless pipe and steel wire rod and bar exports play a positive role.

四是出口退税上调对热卷、中板、带钢、涂镀板、型钢、焊管、部分无缝管及棒线材等钢材产品出口起到一定积极作用。

This test is suitable only for type O steels up to 12 mm diameter except in condition D.

这个测试只适合直径达到12毫米的0型钢。情况D中的除外。

Using characteristic description to define High-Tech fields is mainly expressed by the summary of design thought, material application,structure treatment and construction properteis. In the 1950s, Early High-Tech school focused mostly on technology application and standardization ; in the 1970s, they emphasized industrial techinic, mainly using industrialized steal profil, glass, plastic, metal sheet and tightwire of mass production to display industry succes. In 1990s, late High-Tech school proposes durable developpement concept, to pay attention to tract, to bring importat emation factor into conception, to improve energy using rate, to protect ecological environment, and to creat comfortable environment.

借助一些特征的描述来界定高技术的范畴，主要表现为设计的思想精神、对材料的运用、结构的处理及施工特点等方面的归纳和总结。20世纪50年代早期高技派集中在高技术的采用与构件的装配化、标准化；20世纪70年代强调表现工业技术，主要使用工业化批量生产的型钢、玻璃、塑料、金属板和钢索这些材料炫耀工业成就。20世纪90年代后新高技派，倡导可持续发展理念，注重场所地域性，更发挥情感在设计中的重要因素，用高技术来提高能源使用率，有效地保护生态环境，营造舒适宜人的环境。

Considering the behaviors of unbonded prestressed concrete beams and steel reinforced concrete columns, a kind of nonconforming beam-column element was constructed and the analysis precision was improved. Loading and reloading paths were introduced into the constitutive relationship of concrete. It is helpful to the analysis program to trace the full-range mechanical behavior of structures including the descending part and the hysterisis characteristic under cyclic loading.

考虑无粘结预应力混凝土梁、型钢混凝土柱等结构构件的受力特点，构造非协调梁柱单元，提高了分析精度；混凝土的本构关系中，引入卸载路径和再加载路径，使得分析程序可以追踪包括下降段在内的结构全过程力学行为，以及反复荷载下结构的滞回特性。

Based on the test results and numerical analysis, rigidity degradation rules and hysteretic rules are analyzed. A trilinear hysteretic model considering rigidity degradation is proposed for steel reinforced high strength and high performance concrete frame joints. The proposed restoring force model tallies with the test curves, which can be a good reference for seismic design of SRC structures.

3根据试验所得的滞回曲线和骨架曲线，分析节点的滞回规律及恢复力特性，提出了适合于型钢高强高性能混凝土框架节点的恢复力模型，为节点抗震性能研究和非线性地震反应时程分析提供科学的理论基础。

Keywords:super-span stretched stereoscopic steel pipe trussing; wind tunnel experiment; joint; prestressed; composite steel and concrete; diagonal column

关键词］超大跨度伸臂矩形立体管桁架；风洞试验；节点；预应力；型钢混凝土；斜柱

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。